AD7792BRUZ-REEL

AD7792 is a low power, low noise, complete analogue front end for high precision measurement applications. The AD7792 contain a low noise 16bit 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. The devices contain a precision low noise, low drift internal band gap reference and can accept an external differential reference. Other on-chip features include programmable excitation current sources, burnout currents, and a bias voltage generator. 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

附註

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