Analog Devices Inc. LT6370 Low Noise Instrumentation Amplifier

Analog Devices Inc. LT6370 Low Noise Instrumentation Amplifiers are designed to deliver DC precision, enabling smaller signals to be sensed and easing calibration requirements, particularly over temperature. These gain-programmable, high-precision instrumentation amplifiers feature a proprietary high-performance bipolar process for accuracy and long-term stability. The LT6370 modules are laser trimmed for low input offset voltage (25µV) and high CMRR (94dB, G=1), while the proprietary on-chip test capability allows the input offset voltage drift (0.3µV/°C) and gain drift (30ppm/°C) to be guaranteed with automated testing on the S8E package. Analog Devices Inc. LT6370 Low Noise Instrumentation Amplifiers are available in several package options and are fully specified over -40°C to +85°C and -40°C to +125°C temperature ranges.

Features

  • Single gain set resistor: G=1 to >1000
  • Excellent DC precision
    • 25μV maximum input offset voltage
    • 0.3μV/°C maximum input offset voltage drift
    • 0.01% maximum gain error (G=1)
    • 30ppm/°C maximum gain drift (G>1)
    • 94dB minimum DC CMRR (G=1)
  • 400pA maximum input bias current 
  • 3.1MHz –3dB bandwidth (G=1)
  • Low noise
    • 0.1Hz to 10Hz noise: 0.2μVP-P
    • 1kHz voltage noise: 7nV/√Hz
  • Integrated input RFI filter
  • Wide 4.75V to 35V supply range
  • -40°C to +85°C and -40°C to +125°C °C specified temperature range
  • MS8, S8E and 10-pin 3mm x 3mm DFN packages

Applications

  • Bridge amplifier
  • Data acquisition
  • Multiplexed signals
  • Thermocouple amplifier
  • Strain gauge amplifier
  • Medical instrumentation
  • Transducer interfaces
  • Differential to single-ended conversion

Typical Application

Application Circuit Diagram - Analog Devices Inc. LT6370 Low Noise Instrumentation Amplifier
Paskelbta: 2019-10-16 | Atnaujinta: 2024-03-12