The AD7699 is a 16-bit, 8-channel, 500 kSPS PulSAR ADC with features including 16-bit resolution, 8-channel multiplexer, unipolar single-ended/differential (GND sense) inputs, throughput of 500 kSPS, INL: ±0.5 LSB typical, ±1.5 LSB maximum, dynamic range of 93.3 dB, SINAD: 91.5 dB @ 20 kHz, THD: −97 dB @ 20 kHz, and more.
The AD7699 is an 8‑channel, 16‑bit charge‑redistribution SAR ADC that operates from a single 4.5 V to 5.5 V supply. It provides a selectable unipolar or bipolar input range, an internal 4.096 V reference, a temperature sensor, and a one‑pole filter. Communication is via a standard SPI interface with a separate VIO supply.
Typical applications include battery‑powered equipment, medical instruments, GPS, PDAs, power‑line monitoring, seismic data acquisition, instrumentation and process control. The device is supplied in a 20‑lead LFCSP package suitable for operation from –40 °C to +85 °C.
| Resolution | 16 bits |
|---|---|
| Number of Channels | 8 |
| Throughput | 500 kSPS |
| Supply Voltage (VDD) | 4.5 V to 5.5 V |
| Standby Current | 50 nA |
| Power Dissipation (100 kSPS) | 5.2 mW |
| Internal Reference Voltage | 4.096 V |
The AD7699 can sample at up to 500 kSPS.
The device draws 50 nA in standby mode.
It operates from a VDD of 4.5 V to 5.5 V.
Yes, it includes an internal 4.096 V reference.