Distributor | SKU | Stock | Cost | |
---|---|---|---|---|
DigiKey | 2156-AD7691SRMZ-EP-RL7-ND | 0 | $33.75 | Buy |
Mouser Electronics | 584-AD7691SRMZEPRL7 | 0 | $41.50 | Buy |
Win Source | AD7691SRMZ-EP-RL7 | 5 | Buy | |
Arrow North American Components | AD7691SRMZ-EP-RL7 | 0 | Buy | |
Analog Devices Inc | AD7691SRMZ-EP-RL7 | $48.80 | Buy | |
Newark | AD7691SRMZ-EP-RL7 | $47.33 | Buy | |
Verical Marketplace | AD7691SRMZ-EP-RL7 | 3000 | $36.40 | Buy |
The AD7691 is an 18-bit, charge redistribution, successive approximation, analog-to-digital converter (ADC) that operates from a single power supply, VDD, between 2.3 V and 5 V. It contains a low power, high speed, 18-bit sampling ADC with no missing codes, an internal conversion clock, and a versatile serial interface port. On the CNV rising edge, it samples the voltage difference between the IN+ and IN− pins. The voltages on these pins usually swing in opposite phase between 0 V and REF. The reference voltage, REF, is applied externally and can be set up to the supply voltage. The part’s power scales linearly with throughput.The SPI-compatible serial interface also features the ability, using the SDI input, to daisy-chain several ADCs on a single 3-wire bus and provides an optional busy indicator. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate VIO supply.The AD7691 is housed in a 10-lead MSOP or a 10-lead QFN (LFCSP) with operation specified from −40°C to +85°C.Applications Battery-powered equipment Data acquisitions Seismic data acquisition systems Instrumentation Medical instruments