Maxim Integrated Producs ICL7650BCD, ICL7650BCPA, ICL7650BCPD, ICL7650BCSA, ICL7650BCSD Datasheet

...
0 (0)

19-0960; Rev 2; 1/00

Chopper-Stabilized Op Amps

General Description

Maxim’s ICL7650/ICL7653 are chopper-stabilized amplifiers, ideal for low-level signal processing applications. Featuring high performance and versatility, these devices combine low input offset voltage, low input bias current, wide bandwidth, and exceptionally low drift over time and temperature. Low offset is achieved through a nulling scheme that provides continuous error correction. A nulling amplifier alternately nulls itself and the main amplifier. The result is an input offset voltage that is held to a minimum over the entire operating temperature range.

The ICL7650B/ICL7653B are exact replacements for Intersil’s ICL7650B/ICL7653B. These devices have a 10µV max offset voltage, a 0.1µV/°C max input offset voltage temperature coefficient, and a 20pA max bias current—all specified over the commercial temperature range.

A 14-pin version is available that can be used with either an internal or external clock. The 14-pin version has an output voltage clamp circuit to minimize overload recovery time.

Applications

Condition Amplifier

Precision Amplifier

Instrumentation Amplifier

Thermocouples

Thermistors

Strain Gauges

Typical Operating Circuit

CLAMP

 

INPUT

 

ICL7650

OUTPUT

C

ICL7653

 

R

C

INVERTING AMPLIFIER

 

 

WITH OPTIONAL CLAMP

Features

ICL7650/53 are Improved Second Sources to ICL7650B/53B

Lower Supply Current: 2mA

Low Offset Voltage: 1µV

No Offset Voltage Trimming Needed

High-Gain CMRR and PSRR: 120dB min

Lower Offset Drift with Time and Temperature

Extended Common-Mode Voltage Range

Low DC Input Bias Current: 10pA

Monolithic, Low-Power CMOS Design

Ordering Information

PART

TEMP. RANGE

PIN-PACKAGE

 

 

 

ICL7650CSA

0°C to +70°C

8 SO

ICL7650CSD

0°C to +70°C

14 SO

 

 

 

 

ICL7650CPA

0°C to +70°C

8

Plastic DIP

 

 

 

ICL7650CPD

0°C to +70°C

14 Plastic DIP

 

 

 

 

ICL7650CTV

0°C to +70°C

8

TO-99

 

 

 

ICL7650C/D

0°C to +70°C

Dice

 

 

 

 

ICL7650IJA

-20°C to +85°C

8

CERDIP

 

 

 

ICL7650IJD

-20°C to +85°C

14 CERDIP

 

 

 

ICL7650MTV

-55°C to +125°C

8 CERDIP

ICL7650MJD

-55°C to +125°C

14 CERDIP

 

 

 

ICL7650BCSA

0°C to +70°C

8 SO

 

 

 

ICL7650BCSD

0°C to +70°C

14 SO

 

 

 

 

ICL7650BCPA

0°C to +70°C

8

Plastic DIP

 

 

 

ICL7650BCPD

0°C to +70°C

14 Plastic DIP

 

 

 

ICL7650BCTV

0°C to +70°C

8 TO-99

 

 

 

ICL7650BC/D

0°C to +70°C

Dice

ICL7653CSA

0°C to +70°C

8 SO

 

 

 

 

ICL7653CPA

0°C to +70°C

8

Plastic DIP

 

 

 

 

ICL7653CTV

0°C to +70°C

8

TO-99

 

 

 

 

ICL7653IJA

-20°C to +85°C

8

CERDIP

 

 

 

ICL7653MTV

-55°C to +125°C

8 CERDIP

ICL7653BCSA

0°C to +70°C

8 SO

 

 

 

 

ICL7653BCPA

0°C to +70°C

8

Plastic DIP

 

 

 

ICL7653BCTV

0°C to +70°C

8 TO-99

 

 

 

 

Pin Configurations appear at end of data sheet.

________________________________________________________________ Maxim Integrated Products 1

ICL7650/ICL7650B/ICL7653/ICL7653B

For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800. For small orders, phone 1-800-835-8769.

ICL7650/ICL7650B/ICL7653/ICL7653B

Chopper-Stabilized Op Amps

ABSOLUTE MAXIMUM RATINGS

Total Supply Voltage (V+ to V-)..............................................

 

18V

Input Voltage ........................................

(V+ + 0.3V) to (V- - 0.3V)

Voltage on Oscillator Control Pins

 

 

(except EXT/CLOCK IN).............................................

 

V+ to V-

Voltage on EXT/CLOCK IN ..................

(V+ + 0.3V) to (V+ - 6.0V)

Duration of Output Short Circuit ....................................

 

Indefinite

Current into Any Pin ............................................................

 

10mA

Current into Any Pin while Operating (Note 1)...................

100µA

Continuous Total Power Dissipation (TA = +70°C)

 

8-Pin SO (derate 5.88mW/°C above +70°C)...............

471mW

8-Pin PDIP (derate 6.9mW/°C above +70°C)...............

552mW

8-Pin CERDIP (derate 8.0mW/°C above +70°C).........

640mW

8-Pin TO-99 (derate 6.7mW/°C above +70°C)............

533mW

14-Pin SO (derate 8.3mW/°C above +70°C)

...............

667mW

14-Pin PDIP (derate 10.0mW/°C above +70°C)..........

800mW

14-Pin CERDIP (derate 9.1mW/°C above +70°C).......

727mW

Operating Temperature Ranges

 

 

ICL765_C_ _/ICL755_BC__ ...............................

0°C to +70°C

ICL765_I__/ICL755_BI__................................

- 20°C to +85°C

ICL765_M__/ICL755_BM__..........................

- 55°C to +125°C

Storage Temperature Range .............................

- 65°C to +150°C

Junction Temperature ......................................................

 

+150°C

Lead Temperature (soldering, 10s) .................................

 

+300°C

Note 1: Maxim recommends limiting the input current to 100µA to avoid latchup problems. A value of 1mA is typically safe; however, this is not guaranteed.

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 in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS—ICL7650B/ICL7653B

(Circuit of Figure 1, V+ = +5V, V- = -5V, TA = +25°C, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TA = +25°C

 

 

±0.7

±5

 

Input Offset Voltage

 

VOS

 

 

 

 

 

µV

 

-55°C < TA < +85°C

 

 

±10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-55°C < TA < +125°C

 

 

 

5.0

 

 

 

 

 

 

 

 

 

 

 

Average Temperature Coefficient

 

∆VOS

 

TA = +25°C

 

 

50

 

µV/°C

of Input Offset Voltage

 

∆T

-20°C < TA < +85°C

 

 

0.01

0.05

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TA = +25°C

 

1.5

10

 

Input Bias Current

 

IBIAS

Doubles every 10°

 

 

 

 

pA

 

0°C < TA < +70°C

 

35

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-20°C < TA < +85°C

 

100

 

 

 

 

 

 

 

 

 

 

 

 

Input Offset Current (Note 2)

 

IOS

TA = +25°C

 

 

0.5

 

pA

 

 

 

 

 

 

 

 

 

 

Input Resistance

 

RIN

 

 

 

1012

 

Large-Signal Voltage Gain

 

AVOL

RL = 10kΩ

 

1 · 105

5 · 108

 

V/V

Output Voltage Swing (Note 3)

 

VOUT

RL = 10kΩ

 

±4.7

±4.85

 

V

 

 

 

 

 

 

RL = 100kΩ

 

 

±4.95

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Common-Mode Voltage Range

 

CMVR

 

 

-5.0

-5.2 to +2.0

1.6

V

 

 

 

 

 

 

 

 

 

 

Common-Mode Rejection Ratio

 

CMRR

CMVR = -5V to +1.6V

 

120

130

 

dB

 

 

 

 

 

 

 

 

 

 

Power-Supply Rejection Ratio

 

PSRR

V+ to V- = ±3V to ±8V

 

120

130

 

dB

 

 

 

 

 

 

 

 

 

 

Input Noise Voltage

 

enp-p

RS = 100Ω, f = 0 to 10Hz

 

2

 

µVp-p

 

 

 

 

 

 

 

 

 

 

Input Noise Current

 

In

f = 10Hz

 

 

0.01

 

pA/√Hz

 

 

 

 

 

 

 

 

 

 

Unity-Gain Bandwidth

 

GBW

 

 

 

2.0

 

MHz

 

 

 

 

 

 

 

 

 

 

Slew Rate

 

SR

CL = 50pF, RL = 10kΩ

 

 

2.5

 

V/µs

 

 

 

 

 

 

 

 

 

 

Rise Time

 

tr

 

 

 

0.2

 

µs

 

 

 

 

 

 

 

 

 

 

Overshoot

 

 

 

 

 

 

20

 

%

 

 

 

 

 

 

 

 

 

 

Operating Supply Range

V+ to V-

 

 

4.5

 

16

V

 

 

 

 

 

 

 

 

 

 

Supply Current

 

ISUPP

No load

 

 

2.0

3.5

mA

 

 

 

 

 

 

 

 

 

 

2 _______________________________________________________________________________________

Chopper-Stabilized Op Amps

ELECTRICAL CHARACTERISTICS—ICL7650B/ICL7653B (continued)

(Circuit of Figure 1, V+ = +5V, V- = -5V, TA = +25°C, unless otherwise noted.)

PARAMETER

SYMBOL

 

CONDITIONS

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

 

 

 

Internal Chopping Frequency

fch

 

Pins 12–14 open (DIP)

120

200

375

Hz

 

 

 

 

 

 

 

 

 

 

Clamp On Current (Note 4)

 

 

RL = 100kΩ

25

70

200

µA

 

Clamp Off Current (Note 4)

 

 

-4.0V < VOUT < +4.0V

 

1

 

pA

Offset Voltage vs. Time

 

 

No load

 

100

 

nV/

 

 

 

 

 

√month

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note 2: IOS = 2 · IBIAS

 

 

 

 

 

 

 

 

Note 3: OUTPUT and CLAMP pins not connected.

 

 

 

 

 

Note 4: See Output Clamp section for details.

 

 

 

 

 

 

ELECTRICAL CHARACTERISTICS—ICL7650/ICL7653

(Circuit of Figure 1, V+ = +5V, V- = -5V, TA = +25°C, unless otherwise noted.) (Note 5)

PARAMETER

SYMBOL

CONDITIONS

 

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TA = +25°C

 

ICL765_

 

±0.7

±5.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ICL765_B

 

±1.0

±10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Offset Voltage

 

VOS

ICL765_

 

 

0°C ≤ TA ≤ +70°C

 

±1.0

±10

µV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-20°C

≤ TA ≤ +85°C

 

±1.0

±10

 

 

 

 

 

 

(Note 6)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-55°C

≤ TA ≤ +125°C

 

±10

±50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ICL765_B, 0°C ≤ TA ≤ +70°C

 

 

0.01

0.05

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Average Temperature Coefficient

 

∆VOS

 

 

 

 

0°C ≤ TA ≤ +70°C

 

0.01

0.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-20°C ≤ TA ≤ +85°C

 

0.01

0.05

µV/°C

 

 

 

 

 

 

of Input Offset Voltage (Note 6)

 

∆T

ICL765_

 

 

 

 

 

 

 

 

 

 

 

 

 

-55°C

≤ TA ≤ +85°C

 

0.01

0.05

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+85°C ≤ TA ≤ +125°C

 

0.25

1.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TA = +25°C

 

 

ICL765_

 

4

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ICL765_B

 

12

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0°C ≤ TA ≤ +70°C

 

 

 

 

 

Input Bias Current

 

IB

 

 

 

 

20

100

pA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ICL765_

 

 

-20°C ≤ TA ≤ +85°C

 

50

200

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-55°C ≤ TA ≤ +125°C

 

0.3

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Resistance

 

RIN

 

 

 

 

 

 

1012

 

 

 

 

 

RL = 10kΩ, TA = +25°C

 

 

1 · 108

5 · 108

 

 

 

Large-Signal Voltage Gain

 

AVOL

0°C ≤ TA ≤ +70°C

 

 

0.5 · 108

 

V/V

 

 

 

 

 

 

 

-20°C ≤ TA ≤ +85°C

 

 

0.5 · 108

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-55°C ≤ TA ≤ +125°C

 

 

0.2 · 108

 

 

 

Output Voltage Swing (Note 3)

 

VOUT

RL = 10kΩ

 

 

±4.7

±4.85

 

V

 

 

 

 

 

 

 

 

 

 

 

RL = 100kΩ

 

 

 

±4.95

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0°C ≤ TA ≤ +70°C

 

 

-5.0

-5.2 to +3.0

2.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Common-Mode Voltage Range

CMVR

-20°C ≤ TA ≤ +85°C

 

 

-5.0

-5.2 to +3.0

2.5

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-55°C ≤ TA ≤ +125°C

 

 

-4.5

-4.0 to +3.0

2.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ICL7650/ICL7650B/ICL7653/ICL7653B

_______________________________________________________________________________________ 3

Maxim Integrated Producs ICL7650BCD, ICL7650BCPA, ICL7650BCPD, ICL7650BCSA, ICL7650BCSD Datasheet

ICL7650/ICL7650B/ICL7653/ICL7653B

Chopper-Stabilized Op Amps

ELECTRICAL CHARACTERISTICS—ICL7650/ICL7653 (continued)

(Circuit of Figure 1, V+ = +5V, V- = -5V, TA = +25°C, unless otherwise noted.) (Note 5)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

 

Common-Mode Rejection Ratio

CMRR

CMVR = -5V to +2.5V

120

130

 

dB

 

 

 

 

 

 

 

Power-Supply Rejection Ratio

PSRR

V+ to V- = ±3V to ±8V

120

130

 

dB

 

 

 

 

 

 

 

Input Noise Voltage

enp-p

RS = 100Ω, f = 0 to 10Hz

 

2

 

µVp-p

 

 

 

 

 

 

 

Input Noise Current

In

f = 10Hz

 

0.01

 

pA/√Hz

 

 

 

 

 

 

 

Unity-Gain Bandwidth

GBW

 

 

2.0

 

MHz

 

 

 

 

 

 

 

Slew Rate

SR

CL = 50pF, RL = 10kΩ

 

2.5

 

V/µs

 

 

 

 

 

 

 

Rise Time

tr

 

 

0.2

 

µs

 

 

 

 

 

 

 

Overshoot

 

 

 

20

 

%

 

 

 

 

 

 

 

Operating Supply Range

V+ to V-

 

4.5

 

16

V

 

 

 

 

 

 

 

 

 

Supply Current

ISUPP

No load

 

1.2

2.0

mA

 

 

 

 

 

 

 

Internal Chopping Frequency

fCLKOUT

Pins 13 and 14 open (DIP)

120

200

375

Hz

 

 

 

 

 

 

 

Clamp On Current (Note 4)

 

RL = 100kΩ

25

70

200

µA

 

 

 

 

 

 

 

Clamp Off Current (Note 4)

 

-4.0 ≤ VOUT ≤ +4.0V

 

1

 

pA

 

 

 

 

 

 

 

 

 

 

Offset Voltage vs. Time

 

 

 

100

 

nV/

 

 

 

 

 

 

 

 

√month

 

 

 

 

 

 

 

 

 

 

 

 

 

Note 3: OUTPUT and CLAMP pins not connected. Note 4: See Output Clamp section for details.

Note 5: All pins are designed to withstand electrostatic discharge (ESD) levels in excess of 2000V (MIL STD 8838 Method 3015.1 test circuit).

Note 6: Sample tested. Limits are not used to calculate outgoing quality level.

Typical Operating Characteristics

(Circuit of Figure 1, V+ = +5V, V- = -5V, TA = +25°C, unless otherwise noted.)

MAXIMUM OUTPUT CURRENT

CLOCK RIPPLE REFERRED TO INPUT

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

vs. TEMPERATURE

vs. SUPPLY VOLTAGE

 

4

 

 

 

 

 

 

ICL7650toc01

 

1k

 

 

 

 

ICL7650toc02

 

3

 

 

 

 

 

ICL7650toc03

(mA)

3

 

 

 

 

 

 

 

 

 

 

 

0.1 F

 

 

 

 

 

 

 

 

 

 

 

SOURCE CURRENT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100

 

 

 

 

SUPPLY CURRENT (mA)

 

 

 

 

 

 

MAXIMUM OUTPUT CURRENT

2

 

 

 

 

CLOCK RIPPLE ( Vp-p)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

BROADBAND

 

1 F

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

10

 

NOISE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(AV = 1000)

 

 

 

 

 

 

 

 

 

 

-10

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SINK CURRENT

 

 

 

 

 

 

 

 

 

 

 

 

 

-20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-30

 

 

 

 

 

 

 

 

0.1

 

 

 

 

 

 

0

 

 

 

 

 

 

 

2

4

6

8

10

12

14

16

 

25

50

75

100

125

150

 

4

6

8

10

12

14

16

 

 

 

TOTAL SUPPLY VOLTAGE (V)

 

 

 

 

 

TEMPERATURE (°C)

 

 

 

 

 

TOTAL SUPPLY VOLTAGE (V)

 

 

4

_______________________________________________________________________________________

 

 

 

 

Loading...
+ 8 hidden pages