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AD7177-2BRU is a 32-bit low noise, fast settling, multiplexed,2-/4-channel Σ-Δ analog-to-digital converter for low bandwidth inputs. It has a maximum channel scan rate of 10 kSPS (100 µs) for fully settled data. The output data rates range from 5 SPS to 10 kSPS.

Features

32-bit data output

Fast and flexible output rate: 5 SPS to10 kSPS

Channel scan data rate of10 kSPS/channel (100 μs settling)

Performance specifications

19.1 noise free bits at 10 kSPS

20.2 noise free bits at 2.5 kSPS

24.6 noise free bits at5 SPS

INL: +1 ppm of FSR

85 dB filter rejection of 50 Hz and 60 Hz with 50 ms settling

User configurable input channels

2 fully differential channels or 4 single-ended channels

Crosspoint multiplexer

On-chip 2.5V reference (+2 ppm/*C drift)

True rail-to-rail analog and reference input buffers

Internal or external clock

Power supply: AVDD1 - AVSS = 5V, AVDD2 = I0VDD= 2.5V to 5V

Split supply with AVDD1/AVSS at +2.5 V

ADC current: 8.4 mA

Temperature range: -40°Cto +105°C

3- or 4-wire serial digital interface (Schmitt trigger on SCLK)

Serial port interface (SPI), QSPI, MICROWIRE, and DSP compatible

Applications

Process control: PLC/DCS modules

Temperature and pressure measurement

Medical and scientific mutichannel instrumentation

Chromatography

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