LT1167IS8 Datasheet

Single Resistor Gain Programmable, Precision Instrumentation Amplifier


The LT®1167 is a low power, precision instrumentation 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 part’s high accuracy (10ppm maximum nonlinearity, 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 (40µV 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.

■ Single Gain Set Resistor: G = 1 to 10,000
■ Gain Error: G = 10, 0.08% Max
■ Input Offset Voltage Drift: 0.3µV/°C Max
■ Meets IEC 1000-4-2 Level 4 ESD Tests with Two External 5k Resistors
■ Gain Nonlinearity: G = 10, 10ppm Max
■ Input Offset Voltage: G = 10, 60µV Max
■ Input Bias Current: 350pA Max
■ PSRR at G = 1: 105dB Min
■ CMRR at G = 1: 90dB Min
■ Supply Current: 1.3mA Max
■ Wide Supply Range: ±2.3V to ±18V
■ 1kHz Voltage Noise: 7.5nV/√Hz
■ 0.1Hz to 10Hz Noise: 0.28µVP-P
■ Available in 8-Pin PDIP and SO Packages

■ Bridge Amplifiers
■ Strain Gauge Amplifiers
■ Thermocouple Amplifiers
■ Differential to Single-Ended Converters
■ Medical Instrumentation



Manufacturer information


 Linear Technology Corporation designs, manufactures and markets a broad line of standard high performance integrated circuits. Applications for the Company's products include telecommunications, cellular telephones, networking products, notebook and desktop computers, video/multimedia, industrial instrumentation, automotive electronics, factory automation, process control, and military and space systems. The Company's principal product categories include amplifiers, battery management, data converters, high frequency, interface, voltage regulators and voltage references

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