AD7175-2BRUZ

AD7175-2 is a low noise, fast settling, multiplexed, 2-/4- channel (fully/pseudo differential) Σ-Δ analog-to-digital converter (ADC) for low bandwidth inputs. AD7175-2 integrates key analog and digital signal conditioning blocks to allow users to configure an individual setup for each analog input channel in use. Each feature can be user selected on a per channel basis. Integrated true rail-to-rail buffers on the analog inputs and external reference inputs provide easy to drive high impedance inputs. Typical application includes process control: PLC/DCS modules, temperature and pressure measurement, medical and scientific multichannel instrumentation and chromatography.

• Fast and flexible output rate: 5SPS to 250KSPS
• Channel scan data rate of 50KSPS/ch (20µs settling), ±1ppm of FSR INL, internal or external clock
• Performance specifications:17.2 noise free bits at 250KSPS, 20 noise free bits at 2.5KSPS
• 85dB rejection of 50Hz and 60Hz with 50ms settling and on-chip 2.5V reference (±2ppm/°C drift)
• User configurable I/P ch, 2 fully differential ch or 4 single-ended ch, crosspoint multiplexer
• True rail-to-rail analog and reference input buffers and
• Supply: AVDD1 = 5V, AVDD2 = IOVDD = 2 to 5V and split supply with AVDD1/AVSS at ±2.5V
• 3- or 4-wire serial digital interface (Schmitt trigger on SCLK) SPI, QSPI, MICROWIRE, DSP compatible
• 24 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