Analog Devices Inc. AD7980 16-Bit 1MSPS PulSAR® ADCs
Analog Devices AD7980 1MSPS PulSAR® ADCs feature low power, high speed, 16-bit sampling ADCs, and a versatile serial interface port. The AD7980 ADCs sample analog input IN+ between 0V to REF with respect to a ground sense IN− on the CNV rising edge. The device's reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD. Operating from a single power supply, VDD, AD7980 power scales linearly with throughput up to 1MSPS.
Using the SDI input, the SPI-compatible serial interface can daisy-chain several ADCs on a single, 3-wire bus with an optional busy indicator. AD7980 is compatible with 1.8V, 2.5V, 3V, or 5V logic, using the separate supply VIO.
Housed in a 10-lead MSOP or a 10-lead QFN (LFCSP) package with operation specified from -40°C to +125°C, the AD7980 1MSPS PulSAR® ADCs are ideal for battery-powered equipment, communications, ATE, data acquisitions, and medical instruments.
Features
- 16-bit resolution with no missing codes
- Throughput: 1MSPS
- Low power dissipation
- 4mW at 1MSPS (VDD only)
- 7mW at 1MSPS (total)
- 70μW at 10kSPS
- INL: ±0.6LSB typical, ±1.25LSB maximum
- SINAD: 91.25dB at 10kHz
- THD: −110dB at 10kHz
- Pseudo-differential analog input range
- 0V to VREF with VREF between 2.5V to 5.5V
- No pipeline delay
- Single-supply 2.5V operation with 1.8V/2.5V/3V/5V logic interface
- Proprietary serial interface
- SPI/QSPI/MICROWIRE™/DSP compatible
- Daisy-chain multiple ADCs and busy indicator
- 10-lead MSOP and 10-lead, 3mm × 3mm LFCSP, same space as SOT-23
- Wide operating temperature range: −40°C to +125°C
Applications
- Battery-powered equipment
- Communications
- ATE
- Data acquisitions
- Medical instruments
Functional Block Diagram
Publicado: 2015-06-17
| Atualizado: 2022-03-11