AD7793BRUZ-REEL

AD7793 is a low power, low noise, complete analogue front end for high precision measurement applications. The AD7793 contain a low noise 24bit Ʃ-Δ ADC with three differential analogue 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 40nV when the update rate equals 4.17Hz. Typical application includes Thermocouple measurements, RTD measurements, thermistor measurements, gas analysis, industrial process control, instrumentation, portable instrumentation, blood analysis, smart transmitters, liquid/gas chromatography and 6-digit DVM.

• Up to 23bits effective resolution
• RMS noise: 40nV at 4.17Hz and 85nV at 16.7Hz
• Power supply: 2.7V to 5.25V, current: 400μA typical and power-down: 1μA maximum
• Low noise programmable gain instrumentation amp and band gap reference with 4ppm/°C drift typical
• Update rate: 4.17Hz to 470Hz, programmable current sources, on-chip bias voltage generator
• 3 differential inputs, internal clock oscillator, simultaneous 50Hz/60Hz rejection
• Burnout currents, independent interface power supply
• 3-wire serial SPI™, QSPI™, MICROWIRE™, DSP-compatible and schmitt trigger on SCLK
• 16 lead TSSOP package
• Operating temperature range from -40 to 105°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party