The AD7685ARMZ is a charge redistribution successive approximation Analog-to-digital Converter (ADC) that operates from a single power supply, VDD, between 2.3 to 5.5V. It contains a low power, high speed, 16-bit sampling ADC with no missing codes, an internal conversion clock and a versatile serial interface port. The part also contains a low noise, wide bandwidth, short aperture delay, track-and-hold circuit. On the CNV rising edge, it samples an analog input IN+ between 0V to REF with respect to a ground sense IN-. The reference voltage, REF, is applied externally and can be set up to the supply voltage. The SPI-compatible serial interface also features the ability, using the SDI input, to daisy chain several ADCs on a single 3-wire bus or provides an optional BUSY indicator.
● Pseudo differential analog input range
● No pipeline delays
● Proprietary serial interface - SPI™/QSPI™/MICROWIRE™/DSP compatible
● Daisy-chain multiple ADC, BUSY indicator
● Pin-for-pin-compatible with 10-lead MSOP/PulSAR®ADC
