LINEAR TECHNOLOGY LTC2051, LTC2052 Technical data

FEATURES

■

Maximum Offset Voltage of 3µV

■

Maximum Offset Voltage Drift of 30nV/°C

■

Small Footprint, Low Profile MS8/GN16 Packages

■

Single Supply Operation: 2.7V to ±5.5V

■

Noise: 1.5µV

■

Voltage Gain: 140dB (Typ)

■

PSRR: 130dB (Typ)

■

CMRR: 130dB (Typ)

■

Supply Current: 0.75mA (Typ) per Amplifier

■

Extended Common Mode Input Range

■

Output Swings Rail-to-Rail

■

Operating Temperature Range –40°C to 85°C

(0.01Hz to 10Hz Typ)

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APPLICATIO S

■

Thermocouple Amplifiers

■

Electronic Scales

■

Medical Instrumentation

■

Strain Gauge Amplifiers

■

High Resolution Data Acquisition

■

DC Accurate RC Active Filters

■

Low Side Current Sense

LTC2051/LTC2052

Dual/Quad Zero-Drift

Operational Amplifiers

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DESCRIPTIO

The LTC®2051/LTC2052 are dual/quad zero-drift opera­tional amplifiers available in the MS8 and SO-8/GN16 and
S14 packages. They operate from a single 2.7V supply and
support ±5V applications. The current consumption is
750µA per op amp.

The LTC2051/LTC2052, despite their miniature size, fea­ture uncompromising DC performance. The typical input
offset voltage and offset drift are 0.5µV and 10nV/°C. The
almost zero DC offset and drift are supported with a power
supply rejection ratio (PSRR) and common mode rejec­tion ratio (CMRR) of more than 130dB.

The input common mode voltage ranges from the negative
supply up to typically 1V from the positive supply. The
LTC2051/LTC2052 also have an enhanced output stage
capable of driving loads as low as 2kΩ to both supply rails.
The open-loop gain is typically 140dB. The LTC2051/
LTC2052 also feature a 1.5µV
3MHz gain-bandwidth product.

, LTC and LT are registered trademarks of Linear Technology Corporation.

DC to 10Hz noise and a

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TYPICAL APPLICATIO

High Performance Low Cost Instrumentation Amplifier

R2

10k

0.1%

R1

100Ω

0.1%

5V

2

3

–V

IN

8

–

1/2

LTC2051HV

+

R1

100Ω

0.1%

1

V

IN

6

–

LTC2051HV

5

+

10k

0.1%

1/2

–5V

Input Referred Noise 0.1Hz to 10Hz

2

R2

1

0

µV

4

7

AV = 101

20512 TA01

–1

–2

0246810

TIME (SEC)

2052 TA02

1

LTC2051/LTC2052

1
2
3
4

OUT A

–IN A
+IN A

V

–

8
7
6
5

V

+

OUT B
–IN B
+IN B

TOP VIEW

MS8 PACKAGE

8-LEAD PLASTIC MSOP

TOP VIEW

V

+

OUT B
–IN B
+IN B

OUT A

–IN A

+IN A

V

–

1

2

3

4

8

7

6

5

S8 PACKAGE

8-LEAD PLASTIC SO

TOP VIEW

S PACKAGE

14-LEAD PLASTIC SO

1
2
3
4
5
6
7

14
13
12
11
10

9
8

OUT A

–IN A
+IN A

V

+

+IN B
–IN B

OUT B

OUT D
–IN D
+IN D
V

–

+IN C
–IN C
OUT C

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ABSOLUTE AXI U RATI GS

(Note 1)

Total Supply Voltage (V+ to V–)

LTC2051/LTC2052 .................................................. 7V

LTC2051HV/LTC2052HV ....................................... 12V

Input Voltage (Note 5) .......... (V+ + 0.3V) to (V– – 0.3V)

Output Short-Circuit Duration......................... Indefinite

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W

PACKAGE/ORDER I FOR ATIO

TOP VIEW

1

OUT A

2

–IN A

3

+IN A

–

4

V

SHDN A

5

MS10 PACKAGE

10-LEAD PLASTIC MSOP

T

= 125°C, θJA = 250°C/W

JMAX

ORDER PART

NUMBER

LTC2051CMS8

LTC2051IMS8

LTC2051HVCMS8

LTC2051HVIMS8

MS8 PART

MARKING

LTMN
LTMP
LTPJ
LTPK

LTC2051CMS10
LTC2051IMS10
LTC2051HVCMS10
LTC2051HVIMS10

T

= 125°C, θJA = 250°C/W

JMAX

ORDER PART

NUMBER

Operating Temperature Range ............... –40°C to 85°C

Specified Temperature Range (Note 3).. –40°C to 85°C

Storage Temperature Range ................ –65°C to 150°C

Lead Temperature (Soldering, 10 sec)................. 300°C

+

10

V
OUT B

9

–IN B

8

+IN B

7

SHDN B

6

T

= 125°C, θJA = 190°C/W

JMAX

MS10 PART

MARKING

LTMQ
LTMR
LTRB
LTRC

ORDER PART

NUMBER

LTC2051CS8
LTC2051IS8
LTC2051HVCS8
LTC2051HVIS8

S8 PART

MARKING

2051
2051I
2051HV
051HVI

TOP VIEW

1

OUT A

2

–IN A

3

+IN A

+

4

V

5

+IN B

6

–IN B

7

OUT B

8

NC

16-LEAD PLASTIC SSOP

T

= 125°C, θJA = 110°C/W

JMAX

GN PACKAGE

OUT D

16

–IN D

15

+IN D

14

V

13

+IN C

12

–IN C

11

OUT C

10

NC

9

Consult factory for Military grade parts.

2

ORDER PART

NUMBER

LTC2052CGN
LTC2052IGN

–

LTC2052HVCGN
LTC2052HVIGN

ORDER PART

NUMBER

LTC2052CS
LTC2052IS
LTC2052HVCS
LTC2052HVIS

GN PART

MARKING

2052
2052I
2052HV

T

= 125°C, θJA = 110°C/W

JMAX

052HVI

LTC2051/LTC2052

ELECTRICAL CHARACTERISTICS

(LTC2051/LTC2052, LTC2051HV/LTC2052HV) The ● denotes the
specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 3V, 5V
unless otherwise noted. (Note 3)

PARAMETER CONDITIONS MIN TYP MAX UNITS

Input Offset Voltage (Note 2) ±0.5 ±3 µV
Average Input Offset Drift (Note 2) ● 0.01 ±0.03 µV/°C
Long-Term Offset Drift 50 nV/√mo
Input Bias Current (Note 4) VS = 3V ±8 ±50 pA

= 3V ● ±100 pA

V

S

VS = 5V ±25 ±75 pA

= 5V ● ±150 pA

V

S

Input Offset Current (Note 4) VS = 3V ±100 pA

V

= 3V ● ±150 pA

S

VS = 5V ±150 pA

= 5V ● ±200 pA

V

S

Input Noise Voltage RS = 100Ω, DC to 10Hz 1.5 µV
Common Mode Rejection Ratio VCM = GND to V+ – 1.3, VS = 3V 115 130 dB

● 110 130 dB

VCM = GND to V+ – 1.3, VS = 5V 120 130 dB

● 115 130 dB

Power Supply Rejection Ratio 120 130 dB

● 115 130 dB

Large-Signal Voltage Gain RL = 10k, VS = 3V 120 140 dB

● 115 140 dB

RL = 10k, VS = 5V 125 140 dB

● 120 140 dB

Output Voltage Swing High RL = 2k to GND ● V+ – 0.15 V+ – 0.06 V

= 10k to GND ● V+ – 0.05 V+ – 0.02 V

R

L

Output Voltage Swing Low RL = 2k to GND ● 215mV

R

= 10k to GND ● 215mV

L

Slew Rate 2V/µs
Gain Bandwidth Product 3 MHz
Supply Current (Per Amplifier) No Load, VS = 3V, V

No Load, VS = 5V, V

Supply Current, Shutdown V

Shutdown Pin Input Low Voltage (VIL) ● V– + 0.5 V
Shutdown Pin Input High Voltage (V

Shutdown Pin Input Current V

Internal Sampling Frequency 7.5 kHz

) ● V+ – 0.5 V

IH

= VIL, VS = 3V ● 25µA

SHDN

= VIL, VS = 5V ● 410µA

V

SHDN

= VIL, VS = 3V ● –1 –3 µA

SHDN

= VIL, VS = 5V ● –2 –5 µA

V

SHDN

SHDN
SHDN

= V
= V

IH
IH

● 0.75 1.0 mA

● 0.85 1.2 mA

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LTC2051/LTC2052

ELECTRICAL CHARACTERISTICS

(LTC2051HV/LTC2052HV) The ● denotes the specifications which apply over

the full operating temperature range, otherwise specifications are at TA = 25°C. VS = ±5V unless otherwise noted. (Note 3)

PARAMETER CONDITIONS MIN TYP MAX UNITS

Input Offset Voltage (Note 2) ±1 ±3 µV
Average Input Offset Drift (Note 2) ● 0.01 ±0.03 µV/°C
Long-Term Offset Drift 50 nV/√mo
Input Bias Current (Note 4) ±90 ±150 pA

● ±300 pA

Input Offset Current (Note 4) ±300 pA

● ±500 pA

Input Noise Voltage RS = 100Ω, DC to 10Hz 1.5 µV
Common Mode Rejection Ratio VCM = V– to V+ – 1.3 125 130 dB

● 120 130 dB

Power Supply Rejection Ratio 120 130 dB

● 115 130 dB

Large-Signal Voltage Gain RL = 10k 125 140 dB

● 120 140 dB

Maximum Output Voltage Swing RL = 2k to GND ● ±4.75 ±4.92 V

= 10k to GND ● ±4.90 ±4.98 V

R

L

Slew Rate 2V/µs
Gain Bandwidth Product 3 MHz
Supply Current (Per Amplifier) No Load, V
Supply Current, Shutdown V
Shutdown Pin Input Low Voltage (VIL) ● V– + 0.5 V

Shutdown Pin Input High Voltage (V
Shutdown Pin Input Current V
Internal Sampling Frequency 7.5 kHz

) ● V+ – 0.5 V

IH

SHDN

SHDN

= V

= V

SHDN

IL

IL

= V

IH

● 1 1.5 mA

● 15 30 µA

● –7 –15 µA

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Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.

Note 2: These parameters are guaranteed by design. Thermocouple effects
preclude measurements of these voltage levels during automated testing.

Note 3: The LTC2051C/LTC2052C, LTC2051HVC/LTC2052HVC are
guaranteed to meet specified performance from 0°C to 70°C and are
designed, characterized and expected to meet these extended temperature
limits, but are not tested at –40°C and 85°C. The LTC2051I/LTC2052I,
LTC2051HVI/LTC2052HVI are guaranteed to meet the extended
temperature limits.

Note 4: The bias current measurement accuracy depends on the proximity
of the negative supply bypass capacitors to the device under test. Because
of this, only the bias current of channel B (LTC2051) and channels A and B
(LTC2052) are 100% tested to the data sheet specifications. The bias
currents of the remaining channels are 100% tested to relaxed limits,
however, their values are guaranteed by design to meet the data sheet
limits.

Note 5: This parameter is guaranteed to meet specified performance
through design and characterization. It has not been tested.

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