AD7793 low noise amplifier module

The AD7793 are low power, low noise, complete analog front ends for high precision measurement applications.

The AD7793 contain a low noise 16-/24-bit ∑-Δ ADC with three differential analog inputs. The on-chip, low noise instrumentation amplifier means that signals of small amplitude can be interfaced directly to the ADC. With a gain setting of 64, the rms noise is 40 nV when the update rate equals 4.17 Hz.

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AD7793 Module Features

• Up to 23 bits effective resolution

• RMS noise : 40nV (4.17Hz);85nV (16.7Hz)

• Current : 400uA typical

• Power-down : 1uA maximum

• Low noise programmable gain instrumentation amp

• Band gap reference with 4 ppm/celsius drift typical

• Update rate : 4.17Hz to 470Hz

• 3 differential inputs

• Internal clock oscillator

• Simultaneous 50Hz/60Hz rejection

• Programmable current sources

• On-chip bias voltage generator

• Burnout currents

• Power supply : 2.7V to 5.25V

• Temperature range : -40~105 celsius

• Independent interface power supply

AD7793 Module Applications

• Thermocouple measurements

• RTD measurements

• Thermistor measurements

• Gas analysis

• Industrial process control

• Instrumentation

• Portable instrumentation

• Blood analysis

• Smart transmitters

• Liquid/gas chromatography

Package includes

• 1 x AD7793 low noise amplifier module

Related Details

• AD7793 Datasheet