1

LT1167

Single Resistor Gain

Programmable, Precision

Instrumentation Amplifier

Gain Nonlinearity

The LT

amplifier that requires only one external resistor to set gains

of 1 to 10,000. The low voltage noise of 7.5nV/

√Hz (at 1kHz)

is not compromised by low power dissipation (0.9mA typical

for

±2.3V to ±15V supplies).

The high accuracy of 10ppm maximum nonlinearity and

0.08% max gain error (G = 10) is not degraded even for load

resistors as low as 2k (previous monolithic instrumentation

amps used 10k for their nonlinearity specifications). The

LT1167 is laser trimmed for very low input offset voltage

(40

µV max), drift (0.3µV/°C), high CMRR (90dB, G = 1) and

PSRR (105dB, G = 1). Low input bias currents of 350pA max

are achieved with the use of superbeta processing. The

output can handle capacitive loads up to 1000pF in any gain

configuration while the inputs are ESD protected up to 13kV

(human body). The LT1167 with two external 5k resistors

passes the IEC 1000-4-2 level 4 specification.

The LT1167, offered in 8-pin PDIP and SO packages, requires

significantly less PC board area than discrete multi op amp

and resistor designs. These advantages make the LT1167 the

most cost effective solution for precision instrumentation

amplifier applications.

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Single Gain Set Resistor: G = 1 to 10,000

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Gain Error: G = 10, 0.08% Max

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Gain Nonlinearity: G = 10, 10ppm Max

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Input Offset Voltage: G = 10, 60

µV Max

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Input Offset Voltage Drift: 0.3

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Input Bias Current: 350pA Max

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PSRR at G = 1: 105dB Min

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CMRR at G = 1: 90dB Min

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Supply Current: 1.3mA Max

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Wide Supply Range:

±2.3V to ±18V

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1kHz Voltage Noise: 7.5nV/

√Hz

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0.1Hz to 10Hz Noise: 0.28

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Available in 8-Pin PDIP and SO Packages

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Meets IEC 1000-4-2 Level 4 ESD Tests with

Two External 5k Resistors

FEATURES

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

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Bridge Amplifiers

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Strain Gauge Amplifiers

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Thermocouple Amplifiers

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Differential to Single-Ended Converters

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Medical Instrumentation

–

+

+

–

2

1

1

1

1

2

R5

392k

R4

50k

R3

50k

R8

100k

R6

1k

LT1634CCZ-1.25

8

4

1/2

LT1490

3

0.2% ACCURACY AT 25

°C

1.2% ACCURACY AT 0

°C TO 60°C

5k

5k

5k

5k

5

4

3

2

–

+

7

1/2

LT1490

5

6

2

8

LUCAS NOVA SENOR

NPC-1220-015-A-3L

7

6

1167 TA01

5

TO

4-DIGIT

DVM

4

R2

12

Ω

LT1167

G = 60

R1

825

Ω

3

6

R7

50k

VOLTS

2.800

3.000

3.200

INCHES Hg

28.00

30.00

32.00

Single Supply Barometer

G = 1000

1167 TA02

OUTPUT VOLTAGE (2V/DIV)