ADI AD7683BRMZ

The AD7683 is a 16-bit, charge redistribution, successive approximation, PulSAR analog-to-digital converter (ADC) that operates from a single power supply, VDD, between 2.7 V and 5.5 V. It contains a low power, high speed, 16-bit sampling ADC with no missing codes (B grade), an internal conversion clock, and a serial, SPI-compatible interface port. The part also contains a low noise, wide bandwidth, short aperture delay, track-and-hold circuit. On the CS falling edge, it samples an analog input, +IN, between 0 V 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. Its power scales linearly with throughput. The AD7683 is housed in an 8-lead MSOP or an 8-lead QFN (LFCSP) package, with an operating temperature specified from -40°C to +85°C.

• 16-bit resolution with no missing codes
• Throughput: 100 kSPS
• INL: ±1 LSB typical, ±3 LSB maximum
• Pseudo differential analog input range
• 0 V to VREF with VREF up to VDD
• Single-supply operation: 2.7 V to 5.5 V
• Serial interface SPI/QSPI/MICROWIRE/DSP compatible
• Power dissipation: 4 mW @ 5 V, 1.5 mW @ 2.7 V, 150 μW @ 2.7 V/10 kSPS
• Standby current: 1 nA
• 8-lead packages: MSOP 3 mm×3 mm QFN (LFCSP) (SOT-23 size)
• Improved second source to ADS8320 and ADS8325

• Battery-powered equipment
• Data acquisition
• Instrumentation
• Medical instruments
• Process control