TEXAS INSTRUMENTS TLC2652, TLC2652A, TLC2652Y Technical data

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TLC2652, TLC2652A, TLC2652Y

Advanced LinCMOS PRECISION CHOPPER-STABILIZED

OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

Extremely Low Offset Voltage ...1 µV Max

Extremely Low Change on Offset Voltage With Temperature . . . 0.003 µV/°C Typ

Low Input Offset Current

500 pA Max at T

AVD. . . 135 dB Min

CMRR and k

Single-Supply Operation

Common-Mode Input Voltage Range

SVR

= – 55°C to 125°C

. . . 120 dB Min

Includes the Negative Rail

No Noise Degradation With External Capacitors Connected to V

DD–

description

The TLC2652 and TLC2652A are high-precision chopper-stabilized operational amplifiers using Texas Instruments Advanced LinCMOS process. This process in conjunction with unique chopper-stabilization circuitry produces opera tional amplifiers whose performance matches or exceeds that of similar devices available today.

Chopper-stabilization techniques make possible extremely high dc precision by continuously nulling input offset voltage even during variation in temperature, time, common-mode voltage, and power supply voltage. In addition, low-frequency noise voltage is significantly reduced. This high precision, coupled with the extremely high input impedance of the CMOS input stage, makes the TLC2652 and TLC2652A an ideal choice for low-level signal processing applications such as strain gauges, thermocouples, and other transducer amplifiers. For applications that require extremely low noise and higher usable bandwidth, use the TLC2654 or TLC2654A device, which has a chopping frequency of 10 kHz.

D008, JG, OR P PACKAGE

(TOP VIEW)

DD–

D014, J, OR N PACKAGE

NC NC

IN–

IN+

NC – No internal connection

IN–

IN+

3 4

(TOP VIEW)

IN–

IN+

6 7

DD–

FK PACKAGE

(TOP VIEW)

3212019

4 5 6 7 8

910111213

DD–

8 7 6 5

14 13 12 11 10

9 8

INT/EXT

C RETURN

DD+

OUT CLAMP

INT/EXT CLK IN CLK OUT V

DD+

OUT CLAMP C RETURN

CLK IN

CLK OUT

DD+

OUT

CLAMP

The TLC2652 and TLC2652A input common-mode range includes the negative rail, thereby providing superior performance in either single-supply or split-supply applications, even at power supply voltage levels as low as ±1.9 V.

Two external capacitors are required for operation of the device; however , the on-chip chopper-control circuitry is transparent to the user. On devices in the 14-pin and 20-pin packages, the control circuitry is made accessible to allow the user the option of controlling the clock frequency with an external frequency source. In addition, the clock threshold level of the TLC2652 and TLC2652A requires no level shifting when used in the single-supply configuration with a normal CMOS or TTL clock input.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Advanced LinCMOS is a trademark of Texas Instruments Incorporated.

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters.

TLC2652, TLC2652A, TLC2652Y

VIOmax

1 µV

TLC2652AC-8D

TLC2652ACP

TLC2652AC-14D

TLC2652ACN

3 µV

TLC2652C-8D

TLC2652CP

TLC2652C-14D

TLC2652CN

1 µV

TLC2652AI-8D

TLC2652AIP

TLC2652AI-14D

TLC2652AIN

3 µV

TLC2652A-8D

TLC2652IP

TLC2652I-14D

TLC2652IN

Advanced LinCMOS PRECISION CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

description (continued)

Innovative circuit techniques are used on the TLC2652 and TLC2652A to allow exceptionally fast overload recovery time. If desired, an output clamp pin is available to reduce the recovery time even further.

The device inputs and output are designed to withstand –100-mA surge currents without sustaining latch-up. Additionally the TLC2652 and TLC2652A incorporate internal ESD-protection circuits that prevent functional failures at voltages up to 2000 V as tested under MIL-STD-883C, Method 3015.2; however, care should be exercised in handling these devices as exposure to ESD may result in degradation of the device parametric performance.

The C-suffix devices are characterized for operation from 0°C to 70°C. The I-suffix devices are characterized for operation from –40°C to 85°C. The Q-suffix devices are characterized for operation from –40°C to125°C. The M-suffix devices are characterized for operation over the full military temperature range of –55°C to125°C.

AVAILABLE OPTIONS

PACKAGED DEVICES

0°C

70°C

–40°C

85°C

–40°C

125°C –55°C

125°C

AT 25°C

3.5 µV TLC2652Q-8D — — — — — — —

3 µV TLC2652AM-8D TLC2652AMJG TLC2652AMP TLC2652AM-14D TLC2652AMJ TLC2652AMN TLC2652AMFK

3.5 µV TLC2652M-8D TLC2652MJG TLC2652MP TLC2652M-14D TLC2652MJ TLC2652MN TLC2652MFK

SMALL

OUTLINE

(D008)

8 PIN 14 PIN 20 PIN

CERAMIC

DIP

(JG)

— —

—

— —

—

PLASTIC

DIP

(P)

SMALL

OUTLINE

(D014)

CERAMIC

DIP

(J)

— —

—

— —

—

PLASTIC

DIP (N)

CHIP

CARRIER

(FK)

— —

—

— —

—

The D008 and D014 packages are available taped and reeled. Add R suffix to the device type (e.g., TLC2652AC-8DR). Chips are tested at 25°C.

CHIP

FORM

(Y)

TLC2652Y

—

functional block diagram

DD+

Clamp

IN+ IN–

Main

–

Null

DD–

C RETURN

Pin numbers shown are for the D (14 pin), JG, and N packages.

+ –

Circuit

Compensation-

Biasing

Circuit

External Components

CLAMP

OUT

DISTRIBUTION OF TLC2652

INPUT OFFSET VOLTAGE

150 Units Tested From 1 Wafer Lot

= ±5 V

DD±

TA = 25°C

N Package

16 12

Percentage of Units – %

4 0

–3 –2 –1 0 1 2 3

VIO – Input Offset Voltage – µV

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TLC2652, TLC2652A, TLC2652Y

Advanced LinCMOS PRECISION CHOPPER-STABILIZED

OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

TLC2652Y chip information

This chip, when properly assembled, displays characteristics similar to the TLC2652C. Thermal compression or ultrasonic bonding may be used on the doped-aluminum bonding pads. Chips may be mounted with conductive epoxy or a gold-silicon preform.

BONDING PAD ASSIGNMENTS

(13)

(14)

(1)

(2)

(12) (11) (10) (9)

(8)

(7)(5)(4)

CHIP THICKNESS: 15 TYPICAL BONDING PADS: 4 × 4 MINIMUM TJmax = 150°C TOLERANCES ARE ±10%. ALL DIMENSIONS ARE IN MILS. PIN (7) IS INTERNALLY CONNECTED

TO BACKSIDE OF CHIP. FOR THE PINOUT, SEE THE FUNCTIONAL

BLOCK DIAGRAM.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TLC2652, TLC2652A, TLC2652Y

PACKAGE

UNIT

Advanced LinCMOS PRECISION CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Supply voltage V Supply voltage V Differential input voltage, V Input voltage, V Voltage range on CLK IN and INT/EXT Input current, I Output current, I

Duration of short-circuit current at (or below) 25°C (see Note 3) unlimited. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Current into CLK IN and INT/EXT

Continuous total dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range, T

Storage temperature range –65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Case temperature for 60 seconds: FK package 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D, N, or P package 260°C. . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: J or JG package 300°C. . . . . . . . . . . . . . . .

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 1. All voltage values, except differential voltages, are with respect to the midpoint between V

2. Differential voltages are at IN+ with respect to IN–.

3. The output may be shorted to either supply. Temperature and/or supply voltages must be limited to ensure that the maximum dissipation rating is not exceeded.

(see Note 1) 8 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DD+

(see Note 1) –8 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DD–

(any input, see Note 1) ±8 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(each input) ±5 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(see Note 2) ±16 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

– to V

DD–

±5 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

: C suffix 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I suffix –40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Q suffix –40°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

M suffix –55°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DD+

and V

DD–

+ 5.2 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

‡

≤ 25°C DERATING FACTOR T

POWER RATING ABOVE TA = 25°CAPOWER RATINGAPOWER RATINGAPOWER RATING

D008 725 mV 5.8 mW/°C 464 mW 377 mW 145 mW D014 950 mV 7.6 mW/°C 608 mW 494 mW 190 mW

FK 1375 mV 1 1.0 mW/°C 880 mW 715 mW 275 mW

J 1375 mV 11.0 mW/°C 880 mW 715 mW 275 mW

JG 1050 mV 8.4 mW/°C 672 mW 546 mW 210 mW

N 1575 mV 12.6 mW/°C 1008 mW 819 mW 315 mW

P 1000 mV 8.0 mW/°C 640 mW 520 mW 200 mW

recommended operating conditions

C SUFFIX I SUFFIX Q SUFFIX M SUFFIX

MIN MAX MIN MAX MIN MAX MIN MAX

Supply voltage, V Common-mode input voltage, V Clock input voltage V Operating free-air temperature, T

DD±

±1.9 ±8 ±1.9 ±8 ±1.9 ±8 ±1.9 ±8 V

DD–VDD+ DD–VDD–

0 70 –40 85 –40 125 –55 125 °C

DISSIPATION RATING TABLE

= 70°C T

–1.9 V

+5 V

DD–VDD+ DD–

DD–

–1.9 V

+5 V

= 85°C T

DD–VDD+ DD–VDD–

–1.9 V

+5 V

= 125°C

DD–VDD+ DD–VDD–

–1.9 V

+5 V

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

PARAMETER

TEST CONDITIONS

†

UNIT

VIOInput offset voltage

Full range

0.003

0.03

0.003

0.03µV/°C

IIOInput offset current

IIBInput bias current

5to5

ICR

range

10 kΩ

See Note 5

kΩ

Clamp on-state current

100 kΩ

Clamp off-state current

CMRR

ygj

IDDSupply current

TLC2652, TLC2652A, TLC2652Y

Advanced LinCMOS PRECISION CHOPPER-STABILIZED

OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

electrical characteristics at specified free-air temperature, VDD± = ±5 V (unless otherwise noted)

†

Full range is 0° to 70°C.

NOTES: 4. Typical values are based on the input offset voltage shift observed through 168 hours of operating life test at TA = 150°C extrapolated

Temperature coefficient of

VIO

input offset voltage Input offset voltage long-term

drift (see Note 4)

ICR

OM+

OM–

SVR

ommon-mode input voltage

Maximum positive peak output voltage swing

Maximum negative peak output voltage swing

Large-signal differential voltage amplification

Internal chopping frequency 25°C 450 450 Hz

Common-mode rejection ratio

Supply-voltage rejection ratio (∆V

/∆VIO)

DD±

at TA = 25° using the Arrhenius equation and assuming an activation energy of 0.96 eV.

5. Output clamp is not connected.

VIC = 0, RS = 50 Ω

RS = 50 Ω Full range

= 10 kΩ,

VO = 0,

RS = 50 Ω V

DD±

VO = 0,

= ±4 V,

= –4 V to 4

ICR

= ±1.9 V to ±8 V, 25°C 120 135 120 135

min,

= 10

RS = 50 Ω

25°C 0.6 3 0.5 1

Full range 4.35 2.35

25°C 25°C 2 2

Full range 100 100

25°C 4 4

Full range 100 100

25°C 4.7 4.8 4.7 4.8

Full range 4.7 4.7

25°C –4.7 –4.9 –4.7 –4.9

Full range –4.7 –4.7

25°C 120 150 135 150

Full range 120 130

25°C 25 25

Full range 25 25

25°C 100 100

Full range 100 100

25°C 120 140 120 140

Full range 120 120

25°C 1.5 2.4 1.5 2.4

Full range 2.5 2.5

TLC2652C TLC2652AC

MIN TYP MAX MIN TYP MAX

0.003 0.06 0.003 0.02 µV/mo

–5 –5

3.1 3.1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TLC2652, TLC2652A, TLC2652Y

PARAMETER

†

UNIT

SR+Positive slew rate at unity gain

V/µs

10 kΩ

SR–Negative slew rate at unity gain

100 F

V/µs

qg V/√H

f 10 kHz,

Advanced LinCMOS PRECISION CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

operating characteristics specified free-air temperature, V

TEST

CONDITIONS

VO = ±2.3 V ,

N(PP)

φm

†

Full range is 0° to 70°C.

NOTE 6: This parameter is tested on a sample basis for the TLC2652A. For other test requirements, please contact the factory . This statement

Equivalent input noise voltage (see Note 6)

Peak-to-peak equivalent input noise voltage

Equivalent input noise current f = 10 kHz 25°C 0.004 0.004 fA/√Hz

Gain-bandwidth product

Phase margin at unity gain

has no bearing on testing or nontesting of other parameters.

f = 10 Hz 25°C 94 94 140 f = 1 kHz f = 0 to 1 Hz 25°C 0.8 0.8 f = 0 to 10 Hz

f = 10 kHz RL = 10 kΩ, CL = 100 pF

RL = 10 kΩ, CL = 100 pF

= = 100 pF

25°C 2 2.8 2 2.8

Full range 1.5 1.5

25°C 2.3 3.1 2.3 3.1

Full range 1.8 1.8

25°C 23 23 35

25°C 2.8 2.8

25°C 1.9 1.9 MHz

25°C 48° 48 °

= ±5 V

DD±

TLC2652C TLC2652AC

MIN TYP MAX MIN TYP MAX

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

PARAMETER

TEST CONDITIONS

†

UNIT

VIOInput offset voltage

Full range

0.003

0.03

0.003

0.03µV/°C

IIOInput offset current

IIBInput bias current

5to5

ICR

voltage range

10 kΩ

See Note 5

kΩ

Clamp on-state current

100 kΩ

Clamp off-state current

CMRR

ygj

IDDSupply current

No load

TLC2652, TLC2652A, TLC2652Y

Advanced LinCMOS PRECISION CHOPPER-STABILIZED

OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

electrical characteristics at specified free-air temperature, VDD± = ±5 V (unless otherwise noted)

†

Full range is –40° to 85°C.

NOTES: 4. Typical values are based on the input offset voltage shift observed through 168 hours of operating life test at TA = 150°C extrapolated

Temperature coefficient of

VIO

input offset voltage Input offset voltage

long-term drift (see Note 4)

ICR

OM+

OM–

SVR

ommon-mode inpu

Maximum positive peak output voltage swing

Maximum negative peak output voltage swing

Large-signal differential voltage amplification

Internal chopping frequency 25°C 450 450 Hz

Common-mode rejection ratio

Supply-voltage rejection ratio (∆V

at TA = 25° using the Arrhenius equation and assuming an activation energy of 0.96 eV.

5. Output clamp is not connected.

DD±

/∆VIO)

VIC = 0, RS = 50 Ω

RS = 50 Ω Full range

= 10 kΩ,

VO = 0,

RS = 50 Ω V

DD±

VO = 0,

= ±4 V,

= –4 V to 4

ICR

= ±1.9 V to ±8 V, 25°C 120 135 120 135

= 10

min,

RS = 50 Ω Full range 120 120

25°C 0.6 3 0.5 1

Full range 4.95 2.95

25°C 25°C 2 2

Full range 150 150

25°C 4 4

Full range 150 150

25°C 4.7 4.8 4.7 4.8

Full range 4.7 4.7

25°C –4.7 –4.9 –4.7 –4.9

Full range –4.7 –4.7

25°C 120 150 135 150

Full range 120 125

25°C 25 25

Full range 25 25

25°C 100 100

Full range 100 100

25°C 120 140 120 140

Full range 120 120

25°C 1.5 2.4 1.5 2.4

Full range 2.5 2.5

TLC2652I TLC2652AI

MIN TYP MAX MIN TYP MAX

0.003 0.06 0.003 0.02 µV/mo

–5 –5

3.1 3.1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TLC2652, TLC2652A, TLC2652Y

PARAMETER

†

UNIT

SR+Positive slew rate at unity gain

V/µs

10 kΩ

SR–Negative slew rate at unity gain

100 F

V/µs

qg V/√H

f 10 kHz,

Advanced LinCMOS PRECISION CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

operating characteristics at specified free-air temperature, V

TEST

CONDITIONS

VO = ±2.3 V ,

N(PP)

φm

†

Full range is –40° to 85°C.

NOTE 6: This parameter is tested on a sample basis for the TLC2652A. For other test requirements, please contact the factory . This statement

Equivalent input noise voltage (see Note 6)

Peak-to-peak equivalent input noise voltage

Equivalent input noise current f = 1 kHz 25°C 0.004 0.004 pA/√Hz

Gain-bandwidth product

Phase margin at unity gain

has no bearing on testing or nontesting of other parameters.

f = 10 Hz 25°C 94 94 140 f = 1 kHz f = 0 to 1 Hz 25°C 0.8 0.8 f = 0 to 10 Hz

f = 10 kHz RL = 10 kΩ, CL = 100 pF

RL = 10 kΩ, CL = 100 pF

= = 100 pF

25°C 2 2.8 2 2.8

Full range 1.4 1.4

25°C 2.3 3.1 2.3 3.1

Full range 1.7 1.7

25°C 23 23 35

25°C 2.8 2.8

25°C 1.9 1.9 MHz

25°C 48° 48 °

MIN TYP MAX MIN TYP MAX

= ±5 V

DD±

TLC2652I TLC2652AI

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Full range

0.003

0.03∗0.003

0.03

∗

V/°C

IIOInput offset current

IIBInput bias current

5to5

ICR

voltage range

See Note 5

10 kΩ

See Note 5

kΩ

Clamp on-state current

Clamp off-state current

100 kΩ

CMRR

ygj

IDDSupply current

No load

TLC2652, TLC2652A, TLC2652Y

Advanced LinCMOS PRECISION CHOPPER-STABILIZED

OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

electrical characteristics at specified free-air temperature, VDD± = ±5 V (unless otherwise noted)

PARAMETER TEST CONDITIONS

Input offset voltage

(see Note 7)

∗

On products compliant to MIL-PRF-38535, this parameter is not production tested.

†

Full range is –40° to 125°C for Q suffix, –55° to 125°C for M suffix.

NOTES: 4. Typical values are based on the input offset voltage shift observed through 168 hours of operating life test at TA = 150°C extrapolated

Temperature coefficient of

VIO

input offset voltage Input offset voltage

long-term drift (see Note 4)

ICR

OM+

OM–

SVR

ommon-mode inpu

Maximum positive peak output voltage swing

Maximum negative peak output voltage swing

Large-signal differential voltage amplification

Internal chopping frequency 25°C 450 450 Hz

Common-mode rejection ratio

Supply-voltage rejection ratio (∆V

at TA = 25° using the Arrhenius equation and assuming an activation energy of 0.96 eV.

5. Output clamp is not connected.

7. This parameter is not production tested. Thermocouple effects preclude measurement of the actual VIO of these devices in high speed automated testing. VIO is measured to a limit determined by the test equipment capability at the temperature extremes. The test ensures that the stabilization circuitry is performing properly.

DD±

/∆VIO)

VIC = 0, RS = 50 Ω

RS = 50 Ω Full range

= 10 kΩ,

VO = 0,

RS = 50 Ω V

DD±

VO = 0,

= ±4 V,

= –5 V to 5

ICR

= ±1.9 V to ±8 V, 25°C 120 135 120 135

= 10

min,

RS = 50 Ω Full range 120 120

†

25°C 0.6 3.5 0.5 3

Full range 10 8

25°C 25°C 2 2

Full range 500 500

25°C 4 4

Full range 500 500

25°C 4.7 4.8 4.7 4.8

Full range 4.7 4.7

25°C –4.7 –4.9 –4.7 –4.9

Full range –4.7 –4.7

25°C 120 150 135 150

Full range 120 120

25°C 25 25

Full range 25 25

25°C 100 100

Full range 500 500

25°C 120 140 120 140

Full range 120 120

25°C 1.5 2.4 1.5 2.4

Full range 2.5 2.5

TLC2652Q TLC2652M

MIN TYP MAX MIN TYP MAX

0.003 0.06

–5 –5

3.1 3.1

∗

TLC2652AM

0.003 0.02∗µV/mo

UNIT

∗

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TLC2652, TLC2652A, TLC2652Y

SR+Positive slew rate at unity gain

V/µs

10 kΩ

SR–Negative slew rate at unity gain

100 F

V/µs

VnEquivalent input noise voltage

V/√H

Peak-to-peak equivalent input noise voltage

Advanced LinCMOS PRECISION CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

operating characteristics specified free-air temperature, V

PARAMETER TEST CONDITIONS

VO = ±2.3 V ,

N(PP)

†

Full range is –40° to 125°C for the Q suffix, –55° to 125°C for the M suffix.

Equivalent input noise current f = 1 kHz 25°C 0.004 pA/√Hz

Gain-bandwidth product

Phase margin at unity gain

f = 10 Hz 25°C 94 f = 1 kHz 25°C 23 f = 0 to 1 Hz 25°C 0.8 f = 0 to 10 Hz 25°C 2.8

f = 10 kHz, RL = 10 kΩ, CL = 100 pF

RL = 10 kΩ, CL = 100 pF

= 100 pF

= ±5 V

DD±

Full range 1.3

Full range 1.6

TLC2652Q

†

25°C 2 2.8

25°C 2.3 3.1

25°C 1.9 MHz

25°C 48°

TLC2652M

TLC2652AM

MIN TYP MAX

UNIT

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

PARAMETER

TEST CONDITIONS

UNIT

50 Ω

ICR

Suppl

oltage rejection ratio (∆V

/∆VIO)

120

135

PARAMETER

TEST CONDITIONS

UNIT

VnEquivalent input noise voltage

V/√H

Peak-to-peak equivalent input noise voltage

TLC2652, TLC2652A, TLC2652Y

Advanced LinCMOS PRECISION CHOPPER-STABILIZED

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electrical characteristics at V

V V A f

CMRR Common-mode rejection ratio

NOTES: 4. Typical values are based on the input offset voltage shift observed through 168 hours of operating life test at TA = 150°C extrapolated

Input offset voltage 0.6 3 µV

Input offset voltage long-term drift (see Note 4) Input offset current Input bias current 4 pA

Common-mode input voltage range RS = 50 Ω

ICR

Maximum positive peak output voltage swing RL = 10 kΩ, See Note 5 4.7 4.8 V

OM+

Maximum negative peak output voltage swing RL = 10 kΩ, See Note 5 –4.7 –4.9 V

OM–

Large-signal differential voltage amplification VO = ±4 V, RL = 10 kΩ 120 150 dB

Internal chopping frequency 450 Hz Clamp on-state current RL = 100 kΩ 25 µA Clamp off-state current VO = –4 V to 4 V 100 pA

SVR

y-v

Supply current VO = 0, No load 1.5 2.4 mA

at TA = 25° using the Arrhenius equation and assuming an activation energy of 0.96 eV.

5. Output clamp is not connected.

= ±5 V, TA = 25°C (unless otherwise noted)

DD±

VO = 0, RS = 50 Ω

= ±1.9 V to ±8 V,

DD±

RS = 50 Ω VO = 0,

VIC = V

ICR

min,

TLC2652Y

MIN TYP MAX

0.003 0.006 µV/mo 2 pA

–5

3.1

120 140 dB

operating characteristics at V

SR+ Positive slew rate at unity gain SR– Negative slew rate at unity gain

N(PP)

Equivalent input noise current f = 1 kHz pA/√Hz Gain-bandwidth product Phase margin at unity gain RL = 10 kΩ, CL = 100 pF 48°

= ±5 V, TA = 25°C

DD±

TLC2652Y

MIN TYP MAX

= ±2.3 V , R

CL = 100 pF f = 10 Hz 94

f = 1 kHz 23 f = 0 to 1 Hz 0.8 f = 0 to 10 Hz 2.8

f = 10 kHz, CL = 100 pF

= 10 kΩ,

RL = 10 kΩ,

2 2.8 V/µs

2.3 3.1 V/µs

1.9 MHz

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TLC2652, TLC2652A, TLC2652Y

vs Common mode in ut voltage

gq y

IIOInput offset current

gq y

VOMMaximum peak output voltage

AVDLarge-signal differential voltage amplification

Chopping frequenc

IDDSupply current

IOSShort-circuit output current

Slew rate

Pulse response

Gain-bandwidth product

vs Su ly voltage

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TYPICAL CHARACTERISTICS

Table of Graphs

(OPP)

N(PP)

Normalized input offset voltage vs Chopping frequency 1

Input bias current

Clamp current vs Output voltage 7 Maximum peak-to-peak output voltage vs Frequency 8

Peak-to-peak equivalent input noise voltage vs Chopping frequency 25, 26 Equivalent input noise voltage vs Frequency 27

Phase margin

Phase shift vs Frequency 13

vs Common-mode input voltage 2 vs Chopping frequency vs Free-air temperature 4

vs Chopping frequency 5 vs Free-air temperature 6

vs Output current 9, 10 vs Free-air temperature

vs Frequency 13 vs Free-air temperature 14

vs Supply voltage 15 vs Free-air temperature 16

vs Supply voltage 17 vs Free-air temperature 18

vs Supply voltage 19 vs Free-air temperature 20

vs Supply voltage 21 vs Free-air temperature 22

Small-signal 23 Large-signal 24

vs Supply voltage 28 vs Free-air temperature 29

vs Supply voltage 30 vs Free-air temperature vs Load capacitance 32

FIGURE

11, 12

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TLC2652, TLC2652A, TLC2652Y

Advanced LinCMOS PRECISION CHOPPER-STABILIZED

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TYPICAL CHARACTERISTICS

NORMALIZED INPUT OFFSET VOLTAGE

CHOPPING FREQUENCY

= ±5 V

DD±

VIC = 0

Vµ

VIO – Normalized Input Offset – uV

TA = 25°C

–10

100 1 k 10 k 100 k

Chopping Frequency – Hz

†

INPUT BIAS CURRENT

COMMON-MODE INPUT VOLTAGE

= ±5 V

DD±

TA = 25°C

IIB – Input Bias Current – pA

–5

–4 –3 –2 –1

VIC – Common-Mode Input Voltage – V

2345

Figure 1

INPUT BIAS CURRENT

CHOPPING FREQUENCY

= ±5 V

DD±

VIC = 0

TA = 25°C

IIB – Input Bias Current – pA

100 1 k 10 k 100 k

Chopping Frequency – Hz

Figure 2

INPUT BIAS CURRENT

FREE-AIR TEMPERATURE

100

= ±5 V

DD±

VO = 0 VIC = 0

IIB – Input Bias Current – pA

25 45 65 105 125

TA – Free-Air Temperature – ° C

Figure 3

†

Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.

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Figure 4

TLC2652, TLC2652A, TLC2652Y Advanced LinCMOS PRECISION CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

TYPICAL CHARACTERISTICS

INPUT OFFSET CURRENT

CHOPPING FREQUENCY

= ±5 V

DD±

VIC = 0 TA = 25°C

IIO – Input Offset Current – pA

100 1 k 10 k 100 k

Chopping Frequency – Hz

†

INPUT OFFSET CURRENT

FREE-AIR TEMPERATURE

= ±5 V

DD±

VIC = 0

IIO – Input Offset Current – pA

25 45 65 85

TA – Free-Air Temperature – ° C

105 125

100 µA

DD±

10 µA

1 µA

100 nA

10 nA

|Clamp Current|

100 pA

10 pA

TA = 25°C

Positive Clamp Current

1 nA

1 pA

4 4.2 4.4 4.6

Figure 5 Figure 6

MAXIMUM PEAK-TO-PEAK OUTPUT

CLAMP CURRENT

OUTPUT VOLTAGE

= ±5 V

Negative Clamp Current

4.8 5

|VO| – Output Voltage – V

DD±

RL = 10 kΩ

O(PP)

VO(PP) – Maximum Peak-to-Peak Output Voltage – V

100 1 k 10 k 1 M

VOLTAGE

FREQUENCY

TA = –55°C

TA = 125°C

= ±5 V

f – Frequency – Hz

Figure 7

†

Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.

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Figure 8

TLC2652, TLC2652A, TLC2652Y

Advanced LinCMOS PRECISION CHOPPER-STABILIZED

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MAXIMUM PEAK OUTPUT VOLTAGE

OUTPUT CURRENT

4.8 V

OM+

4.6

4.4

4.2

|VOM| – Maximum Peak Output Voltage – V

0 0.4 0.8 1.2

|IO| – Output Current – mA

TYPICAL CHARACTERISTICS

= ±5 V

DD±

TA = 25°C

1.6 2

OM–

7.5

7.3

7.1

6.9

|VOM| – Maximum Peak Output Voltage – V

6.7 0 0.4 0.8 1.2

†

MAXIMUM PEAK OUTPUT VOLTAGE

OUTPUT CURRENT

= ±7.5 V

DD±

TA = 25°C

OM+

|IO| – Output Current – mA

OM–

1.6 2

MAXIMUM PEAK OUTPUT VOLTAGE

FREE-AIR TEMPERATURE

2.5

–2.5

VOM – Maximum Peak Output Voltage – V

–5

–50 –25

–75 0 25 50

TA – Free-Air Temperature – ° C

Figure 9

= ±5 V

DD±

RL = 10 kΩ

75 100 125

Figure 10

MAXIMUM PEAK OUTPUT VOLTAGE

FREE-AIR TEMPERATURE

= ±7.5 V

DD±

–4

VOM – Maximum Peak Output Voltage – V

–8

–50 –25

–75 0 25 50 75 100 125

TA – Free-Air Temperature – ° C

RL = 10 kΩ

Figure 11

†

Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.

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Figure 12

TLC2652, TLC2652A, TLC2652Y Advanced LinCMOS PRECISION CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

TYPICAL CHARACTERISTICS

LARGE-SIGNAL DIFFERENTIAL VOLTAGE

AMPLIFICATION AND PHASE SHIFT

FREQUENCY

120

100

Voltage Amplification – dB

AVD – Large-Signal Differential

V RL = 10 kΩ

–20

CL = 100 pF TA = 25°C

–40

10 100 1 k 10 k 100 k

DD±

Phase Shift

= ±5 V

f – Frequency – Hz

†

1 M 10 M

60°

80°

100°

120°

140°

160°

180°

200°

220°

Phase Shift

Figure 13

LARGE-SIGNAL DIFFERENTIAL VOLTAGE

AMPLIFICATION

FREE-AIR TEMPERATURE

155

150

145

Voltage Amplification – dB

140

AVD – Large-Signal Differential

135

–50 –25

–75 0 25 50

TA – Free-Air Temperature – ° C

= ±7.5 V

DD±

RL = 10 kΩ VO = ±4 V

75 100 125

Figure 14

†

Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.

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TLC2652, TLC2652A, TLC2652Y

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CHOPPING FREQUENCY

SUPPLY VOLTAGE

540

520

500

480

460

Chopping Frequency – kHz

440

420

012345

| – Supply Voltage – V

DD±

Figure 15

TYPICAL CHARACTERISTICS

460

= 25°C

450

440

430

420

Chopping Frequency – kHz

410

400

–75 0 25 50

678

–50 –25

†

CHOPPING FREQUENCY

FREE-AIR TEMPERATURE

TA – Free-Air Temperature – ° C

Figure 16

= ±5 V

DD±

75 100 125

SUPPLY CURRENT

SUPPLY VOLTAGE

VO = 0 No Load

1.6

1.2

0.8

IDD – Supply Current – mA

0.4

0235

146

|VDD ±| – Supply Voltage – V

Figure 17

= 25°C

TA = –55°C

TA = 125°C

SUPPLY CURRENT

FREE-AIR TEMPERATURE

= ±7.5 V

DD±

1.6

1.2

0.8

IDD – Supply Current – mA

0.4

–75 0 50

= ±5 V

DD±

= ±2.5 V

DD±

–50 –25

TA – Free-Air Temperature – ° C

Figure 18

25 75

VO = 0 No Load

100 125

†

Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.

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TLC2652, TLC2652A, TLC2652Y Advanced LinCMOS PRECISION CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS

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SHORT-CIRCUIT OUTPUT CURRENT

SUPPLY VOLTAGE

–4

–8

IOS – Short-Circuit Output Current – mA

–12

012345

|VDD ±| – Supply Voltage – V

VID = –100 mV

VID = 100 mV

TYPICAL CHARACTERISTICS

SHORT-CIRCUIT OUTPUT CURRENT

VO = 0 TA = 25°C

678

DD±

VO = 0

–5

–10

IOS – Short-Circuit Output Current – mA

–15

–50 –25

–75 0 25 50

†

FREE-AIR TEMPERATURE

= ±5 V

VID = –100 mV

VID = 100 mV

75 100 125

TA – Free-Air Temperature – ° C

sµ

SR – Slew Rate – V?us

0123 45

Figure 19

SLEW RATE

SUPPLY VOLTAGE

SR–

SR+

| – Supply Voltage – V

DD±

Figure 21

RL = 10 kΩ CL = 100 pF TA = 25°C

678

Figure 20

SLEW RATE

FREE-AIR TEMPERATURE

SR–

sµ

SR – Slew Rate – V?us

–75 0 25 50

–50 –25

SR+

TA – Free-Air Temperature – ° C

Figure 22

= ±5 V

DD±

RL = 10 kΩ CL = 100 pF

75 100 125

†

Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.

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TYPICAL CHARACTERISTICS

VO – Output Voltage – mV

µV

100

–25

–50

–75

–100

1.8

1.6

1.4

VOLTAGE-FOLLOWER

SMALL-SIGNAL

PULSE RESPONSE

= ±5 V

DD±

RL = 10 kΩ

CL = 100 pF TA = 25°C

0123

t – Time – µs

4567

Figure 23

PEAK-TO-PEAK INPUT NOISE VOLTAGE

CHOPPING FREQUENCY

DD±

RS = 20 Ω f = 0 to 1 Hz TA = 25°C

= ±5 V

–1

VO – Output Voltage – V

–2

–3

–4

µV

VOLTAGE-FOLLOWER

LARGE-SIGNAL

PULSE RESPONSE

= ±5 V

DD±

RL = 10 kΩ CL = 100 pF TA = 25°C

0 5 10 15 20

t – Time – µs

25 30 35 40

Figure 24

PEAK-TO-PEAK INPUT NOISE VOLTAGE

CHOPPING FREQUENCY

= ±5 V

DD±

RS = 20 Ω f = 0 to 1 Hz TA = 25°C

N(PP)

VN(PP) – Peak-to-Peak Input Noise Voltage –uV

1.2

0.8

0.6

0.4

0.2

0246810

fch – Chopping Frequency – kHz

Figure 25

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N(PP)

VN(PP) – Peak-to-Peak Input Noise Voltage – uV

0246

fch – Chopping Frequency – kHz

Figure 26

810

TLC2652, TLC2652A, TLC2652Y Advanced LinCMOS PRECISION CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS

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EQUIVALENT INPUT NOISE VOLTAGE

FREQUENCY

100

nV/ Hz

= ±5 V

DD±

Vn – Equivalent Input Noise Voltage – nV/Hz

RS = 20 Ω TA = 25°C

1 10 100 1 k

f – Frequency – Hz

Figure 27 Figure 28

TYPICAL CHARACTERISTICS

2.1 R

= 10 kΩ

CL = 100 pF TA = 25°C

1.9

Gain-Bandwidth Product – MHz

1.8

012345

†

GAIN-BANDWIDTH PRODUCT

SUPPLY VOLTAGE

678

| – Supply Voltage – V

CC±

GAIN-BANDWIDTH PRODUCT

FREE-AIR TEMPERATURE

2.6

2.4

2.2

1.8

Gain-Bandwidth Product – MHz

1.4

1.2 –75 0 25 50

–25

–50

TA – Free-Air Temperature – ° C

Figure 29

= ±5 V

DD±

RL = 10 kΩ CL = 100 pF

75 100 125

PHASE MARGIN

SUPPLY VOLTAGE

50°

= 10 kΩ

CL = 100 pF TA = 25°C

48°

46°

44°

om – Phase Margin

42°

40°

0235

| – Supply Voltage – V

CC±

Figure 30

78146

†

Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.

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TLC2652, TLC2652A, TLC2652Y

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TYPICAL CHARACTERISTICS

PHASE MARGIN

FREE-AIR TEMPERATURE

50°

48°

46°

44°

om – Phase Margin

42°

= ±5 V

DD±

RL = 10 kΩ CL = 100 pF

40°

–75 0 50

–50 –25

TA – Free-Air Temperature – ° C

100 12525 75

Figure 31

†

Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.

60°

50°

40°

30°

20°

om – Phase Margin

10°

0°

0 200 400 600

†

PHASE MARGIN

LOAD CAPACITANCE

CL – Load Capacitance – pF

Figure 32

= ±5 V

DD±

RL = 10 kΩ TA = 25°C

800 1000

APPLICATION INFORMATION

capacitor selection and placement

The two important factors to consider when selecting external capacitors CXA and CXB are leakage and dielectric absorption. Both factors can cause system degradation, negating the performance advantages realized by using the TLC2652.

Degradation from capacitor leakage becomes more apparent with the increasing temperatures. Low-leakage capacitors and standoffs are recommended for operation at T recommended around the capacitor connections on both sides of the printed circuit board to alleviate problems caused by surface leakage on circuit boards.

Capacitors with high dielectric absorption tend to take several seconds to settle upon application of power, which directly affects input offset voltage. In applications where fast settling of input offset voltage is needed, it is recommended that high-quality film capacitors, such as mylar, polystyrene, or polypropylene, be used. In other applications, however, a ceramic or other low-grade capacitor can suffice.

Unlike many choppers available today , the TLC2652 is designed to function with values of C range of 0.1 µF to 1 µF without degradation to input offset voltage or input noise voltage. These capacitors should be located as close as possible to the C many choppers, connecting these capacitors to V

and C

DD–

pins and returned to either V

causes degradation in noise performance. This problem

is eliminated on the TLC2652.

= 125°C. In addition, guard bands are

and CXB in the

or C RETURN. On

DD–

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APPLICATION INFORMATION

internal/external clock

The TLC2652 has an internal clock that sets the chopping frequency to a nominal value of 450 Hz. On 8-pin packages, the chopping frequency can only be controlled by the internal clock; however, on all 14-pin packages and the 20-pin FK package, the device chopping frequency can be set by the internal clock or controlled externally by use of the INT/EXT If external clocking is desired, connect INT/EXT trip point is 2.5 V above the negative rail; however, CLK IN can be driven from the negative rail to 5 V above the negative rail. If this level is exceeded, damage could occur to the device unless the current into CLK IN is limited to ±5 mA. When operating in the single-supply configuration, this feature allows the TLC2652 to be driven directly by 5-V TTL and CMOS logic. A divide-by-two frequency divider interfaces with CLK IN and sets the clock chopping frequency. The duty cycle of the external is not critical but should be kept between 30% and 60%.

overload recovery/output clamp

When large differential input voltage conditions are applied to the TLC2652, the nulling loop attempts to prevent the output from saturating by driving C levels. Once the overdrive condition is removed, a period of time is required to allow the built-up charge to dissipate. This time period is defined as overload recovery time (see Figure 33). Typical overload recovery time for the TLC2652 is significantly faster than competitive products; however, if required, this time can be reduced further by use of internal clamp circuitry accessible through CLAMP if required.

and CXB to internally-clamped voltage

and CLK IN pins. T o use the internal 450-Hz clock, no connection is necessary .

to V

and the external clock to CLK IN. The external clock

DD–

= ±5 V

DD±

TA = 25°C

–5

–50

VI – Input Voltage – mV VO – Output Voltage – V

0 10203040

t – Time – ms

50 60 70 80

Figure 33. Overload Recovery

The clamp is a switch that is automatically activated when the output is approximately 1 V from either supply rail. When connected to the inverting input (in parallel with the closed-loop feedback resistor), the closed-loop gain is reduced, and the TLC2652 output is prevented from going into saturation. Since the output must source sink current through the switch (see Figure 7), the maximum output voltage swing is slightly reduced.

thermoelectric effects

To take advantage of the extremely low offset voltage drift of the TLC2652, care must be taken to compensate for the thermoelectric effects present when two dissimilar metals are brought into contact with each other (such as device leads being soldered to a printed circuit board). Dissimilar metal junctions can produce thermoelectric voltages in the range of several microvolts per degree Celsius (orders of magnitude greater than the 0.01-µV/°C typical of the TLC2652).

To help minimize thermoelectric effects, careful attention should be paid to component selection and circuit-board layout. Avoid the use of nonsoldered connections (such as sockets, relays, switches, etc.) in the input signal path. Cancel thermoelectric effects by duplicating the number of components and junctions in each device input. The use of low-thermoelectric-coefficient components, such as wire-wound resistors, is also beneficial.

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APPLICATION INFORMATION

latch-up avoidance

Because CMOS devices are susceptible to latch-up due to their inherent parasitic thyristors, the TLC2652 inputs and output are designed to withstand –100-mA surge currents without sustaining latch-up; however, techniques to reduce the chance of latch-up should be used whenever possible. Internal protection diodes should not, by design, be forward biased. Applied input and output voltages should not exceed the supply voltage by more than 300 mV. Care should be exercised when using capacitive coupling on pulse generators. Supply transients should be shunted by the use of decoupling capacitors (0.1 µF typical) located across the supply rails as close to the device as possible.

The current path established if latch-up occurs is usually between the supply rails and is limited only by the impedance of the power supply and the forward resistance of the parasitic thyristor. The chance of latch-up occurring increases with increasing temperature and supply voltage.

electrostatic discharge protection

The TLC2652 incorporates internal ESD-protection circuits that prevent functional failures at voltages at or below 2000 V. Care should be exercised in handling these devices, as exposure to ESD may result in degradation of the device parametric performance.

theory of operation

Chopper-stabilized operational amplifiers offer the best dc performance of any monolithic operational amplifier . This superior performance is the result of using two operational amplifiers, a main amplifier and a nulling amplifier, plus oscillator-controlled logic and two external capacitors to create a system that behaves as a single amplifier. With this approach, the TLC2652 achieves submicrovolt input offset voltage, submicrovolt noise voltage, and offset voltage variations with temperature in the nV/°C range.

The TLC2652 on-chip control logic produces two dominant clock phases: a nulling phase and an amplifying phase. The term chopper-stabilized derives from the process of switching between these two clock phases. Figure 34 shows a simplified block diagram of the TLC2652. Switches A and B are make-before-break types.

During the nulling phase, switch A is closed shorting the nulling amplifier inputs together and allowing the nulling amplifier to reduce its own input offset voltage by feeding its output signal back to an inverting input node. Simultaneously , external capacitor C remain nulled during the amplifying phase.

IN+ IN–

stores the nulling potential to allow the offset voltage of the amplifier to

Main Amplifier

Null

Amplifier

+ –

DD–

Figure 34. TLC2652 Simplified Block Diagram

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APPLICATION INFORMATION

theory of operation (continued)

During the amplifying phase, switch B is closed connecting the output of the nulling amplifier to a noninverting input of the main amplifier. In this configuration, the input offset voltage of the main amplifier is nulled. Also, external capacitor C nulled during the next nulling phase.

This continuous chopping process allows offset voltage nulling during variations in time and temperature over the common-mode input voltage range and power supply range. In addition, because the low-frequency signal path is through both the null and main amplifiers, extremely high gain is achieved.

The low-frequency noise of a chopper amplifier depends on the magnitude of the component noise prior to chopping and the capability of the circuit to reduce this noise while chopping. The use of the Advanced LinCMOS process, with its low-noise analog MOS transistors and patent-pending input stage design, significantly reduces the input noise voltage.

The primary source of nonideal operation in chopper-stabilized amplifiers is error charge from the switches. As charge imbalance accumulates on critical nodes, input offset voltage can increase, especially with increasing chopping frequency. This problem has been significantly reduced in the TLC2652 by use of a patent-pending compensation circuit and the Advanced LinCMOS process.

stores the nulling potential to allow the offset voltage of the main amplifier to remain

The TLC2652 incorporates a feed-forward design that ensures continuous frequency response. Essentially , the gain magnitude of the nulling amplifier and compensation network crosses unity at the break frequency of the main amplifier. As a result, the high-frequency response of the system is the same as the frequency response of the main amplifier. This approach also ensures that the slewing characteristics remain the same during both the nulling and amplifying phases.

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MECHANICAL DATA

D (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE

14 PIN SHOWN

0.050 (1,27)

0.069 (1,75) MAX

0.020 (0,51)

0.014 (0,35)

0.010 (0,25)

0.004 (0,10)

DIM

PINS **

0.010 (0,25)

0.157 (4,00)

0.150 (3,81)

0.244 (6,20)

0.228 (5,80)

Seating Plane

0.004 (0,10)

0.008 (0,20) NOM

0°–8°

Gage Plane

0.010 (0,25)

0.044 (1,12)

0.016 (0,40)

A MAX

A MIN

NOTES: A. All linear dimensions are in inches (millimeters).

B. This drawing is subject to change without notice. C. Body dimensions do not include mold flash or protrusion, not to exceed 0.006 (0,15). D. Falls within JEDEC MS-012

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

0.197

(5,00)

0.189

(4,80)

0.344

(8,75)

0.337

(8,55)

0.394

(10,00)

0.386

(9,80)

4040047/D 10/96

TLC2652, TLC2652A, TLC2652Y Advanced LinCMOS PRECISION CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

MECHANICAL DATA

FK (S-CQCC-N**) LEADLESS CERAMIC CHIP CARRIER

28 TERMINAL SHOWN

A SQ

B SQ

12826 27

121314151618 17

0.020 (0,51)

0.010 (0,25)

MIN

0.342 (8,69)

0.442

0.640

0.739

0.938

1.141

0.358

(9,09)

0.458

(11,63)

0.660

(16,76)

0.761

(19,32)(18,78)

0.962

(24,43)

1.165

(29,59)

NO. OF

TERMINALS

432

0.020 (0,51)

0.010 (0,25)

(11,23)

(16,26)

(23,83)

(28,99)

MINMAX

0.307 (7,80)

0.406

(10,31)

0.495

(12,58)

0.495

(12,58)

0.850 (21,6)

1.047 (26,6)

0.080 (2,03)

0.064 (1,63)

MAX

0.358

(9,09)

0.458

(11,63)

0.560

(14,22)

0.560

(14,22)

0.858

(21,8)

1.063

(27,0)

0.055 (1,40)

0.045 (1,14)

0.028 (0,71)

0.022 (0,54)

0.050 (1,27)

NOTES: A. All linear dimensions are in inches (millimeters).

B. This drawing is subject to change without notice. C. This package can be hermetically sealed with a metal lid. D. The terminals are gold plated. E. Falls within JEDEC MS-004

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

0.045 (1,14)

0.035 (0,89)

0.045 (1,14)

0.035 (0,89)

4040140/D 10/96

TLC2652, TLC2652A, TLC2652Y

Advanced LinCMOS PRECISION CHOPPER-STABILIZED

OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

MECHANICAL DATA

J (R-GDIP-T**) CERAMIC DUAL-IN-LINE PACKAGE

14 PIN SHOWN

0.065 (1,65)

0.045 (1,14)

0.100 (2,54)

0.070 (1,78)

PINS **

DIM

A MAX

0.020 (0,51) MIN

0.200 (5,08) MAX

A MIN

B MAX

B MIN

C MAX

C MIN

Seating Plane

0.310

(7,87)

0.290

(7,37)

0.785

(19,94)

0.755

(19,18)

0.300A0.300

(7,62)

0.245

(6,22)

0.310

(7,87)

0.290 (7,37)

0.785

(19,94)

0.755

(19,18)

(7,62)

0.245 (6,22)

181614

0.310

(7,87)

0.290

(7,37)

0.910

(23,10)

0.300

(7,62)

0.245

(6,22)

0.310

(7,87)

0.290

(7,37)

0.975

(24,77)

0.930

(23,62)

0.300

(7,62)

0.245

(6,22)

0.100 (2,54)

0.023 (0,58)

0.015 (0,38)

NOTES: A. All linear dimensions are in inches (millimeters).

B. This drawing is subject to change without notice. C. This package can be hermetically sealed with a ceramic lid using glass frit. D. Index point is provided on cap for terminal identification only on press ceramic glass frit seal only.

E. Falls within MIL STD 1835 GDIP1-T14, GDIP1-T16, GDIP1-T18, GDIP1-T20, and GDIP1-T22.

0.130 (3,30) MIN

0°–15°

0.014 (0,36)

0.008 (0,20)

4040083/D 08/98

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TLC2652, TLC2652A, TLC2652Y Advanced LinCMOS PRECISION CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

MECHANICAL DATA

JG (R-GDIP-T8) CERAMIC DUAL-IN-LINE PACKAGE

0.400 (10,20)

0.355 (9,00)

0.063 (1,60)

0.015 (0,38)

0.100 (2,54)

0.065 (1,65)

0.045 (1,14)

0.020 (0,51) MIN

0.280 (7,11)

0.245 (6,22)

0.200 (5,08) MAX

0.130 (3,30) MIN

0.023 (0,58)

0.015 (0,38)

0.310 (7,87)

0.290 (7,37)

Seating Plane

0°–15°

0.014 (0,36)

0.008 (0,20)

NOTES: A. All linear dimensions are in inches (millimeters).

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

4040107/C 08/96

TLC2652, TLC2652A, TLC2652Y

Advanced LinCMOS PRECISION CHOPPER-STABILIZED

OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

MECHANICAL DATA

N (R-PDIP-T**) PLASTIC DUAL-IN-LINE PACKAGE

16 PIN SHOWN

0.035 (0,89) MAX

PINS **

DIM

0.260 (6,60)

0.240 (6,10)

0.070 (1,78) MAX

0.020 (0,51) MIN

0.200 (5,08) MAX

A MAX

A MIN

Seating Plane

0.775

(19,69)

0.745

(18,92)

0.775

(19,69)

0.745

(18,92)

0.920

(23.37)

0.850

(21.59)

0.975

(24,77)

0.940

(23,88)

0.310 (7,87)

0.290 (7,37)

0.100 (2,54)

0.021 (0,53)

0.015 (0,38)

NOTES: A. All linear dimensions are in inches (millimeters).

B. This drawing is subject to change without notice. C. Falls within JEDEC MS-001 (20 pin package is shorter then MS-001.)

0.010 (0,25)

0.125 (3,18) MIN

0°–15°

0.010 (0,25) NOM

14/18 PIN ONL Y

4040049/C 08/95

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TLC2652, TLC2652A, TLC2652Y Advanced LinCMOS PRECISION CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS

SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999

MECHANICAL DATA

P (R-PDIP-T8) PLASTIC DUAL-IN-LINE PACKAGE

0.400 (10,60)

0.355 (9,02)

0.260 (6,60)

0.240 (6,10)

0.070 (1,78) MAX

0.020 (0,51) MIN

0.200 (5,08) MAX

0.125 (3,18) MIN

0.100 (2,54)

0.021 (0,53)

0.015 (0,38)

NOTES: A. All linear dimensions are in inches (millimeters).

B. This drawing is subject to change without notice. C. Falls within JEDEC MS-001

0.010 (0,25)

0.310 (7,87)

0.290 (7,37)

Seating Plane

0°–15°

0.010 (0,25) NOM

4040082/B 03/95

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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TEXAS INSTRUMENTS TLC2652, TLC2652A, TLC2652Y Technical data

Specifications and Main Features

Frequently Asked Questions

User Manual