LT1168CN8#PBF - 

Instrument Amplifier, 1 Amplifier, 60 µV, 30 V/µs, 400 kHz, ± 2.3V to ± 18V, DIP


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Product Overview

The LT1168CN8#PBF is a low power single resistor gain programmable Micropower Precision Instrumentation Amplifier that requires only one external resistor to set gains of 1 to 10000. The low voltage noise of 10nV/√Hz (at 1kHz) is not compromised by low power dissipation (350µA typical for ±15V supplies). The wide supply range of ±2.3 to ±18V allows the LT1168 to fit into a wide variety of industrial as well as battery-powered applications. The high accuracy of the LT1168 is due to a 20ppm maximum non-linearity and 0.4% max gain error (G = 10). Previous monolithic instrumentation amps cannot handle a 2k load resistor whereas the non-linearity of the LT1168 is specified for loads as low as 2k. The LT1168 is laser trimmed for very low input offset voltage (40µV max), drift (0.3µV/°C), high CMRR (90dB, G = 1) and PSRR (103dB, G = 1). Low input bias currents of 250pA max are achieved with the use of superbeta processing.
  • 530µA Maximum supply current
  • Meets IEC 1000-4-2 level 4 (±15kV) ESD tests with two external 5k resistors
  • Single gain set resistor (G = 1 to 10000)
  • 0.4% Maximum gain error (G = 10)
  • 0.3µV/°C Maximum input offset voltage drift
  • 20ppm Maximum gain non-linearity (G = 10)
  • 250pA Maximum input bias current
  • 103dB Minimum PSRR at AV = 1
  • 90dB Minimum CMRR at AV = 1
  • 1kHz Voltage noise (10nV/√Hz)
  • 0.1 to 10Hz Noise (0.28µVP-P)


Signal Processing, Power Management, Test & Measurement, Medical, Sensing & Instrumentation, Industrial


ESD sensitive device, take proper precaution while handling the device.

Product Information

1 Amplifier
± 2.3V to ± 18V
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