The AD7680 is a 16-bit ADC from Analog Devices that offers low power consumption (3 mW typical at 100 kSPS with 2.5 V supply), high throughput rate (100 kSPS), and wide input bandwidth (86 dB SNR at 10 kHz input frequency). It is suitable for use in battery-powered systems, such as personal digital assistants, medical instruments, mobile communications, instrumentation and control systems, remote data acquisition systems, high speed modems, and optical sensors.
The AD7680 is a 16‑bit successive‑approximation ADC that operates from a single 2.5 V to 5.5 V supply and delivers up to 100 kSPS throughput. It features a low‑noise, wide‑bandwidth track‑and‑hold amplifier, no pipeline delays, and a shutdown mode that reduces power to sub‑microamp levels. The device supports SPI, QSPI, pWire and DSP‑compatible serial interfaces.
Typical applications include battery‑powered systems such as PDAs and medical instruments, high‑speed modems, optical sensors, and remote data acquisition. The datasheet provides layout recommendations, grounding strategies, and detailed timing specifications to help designers achieve optimal performance.
| Throughput Rate | 100 kSPS |
|---|---|
| Supply Voltage Range | 2.5 V to 5.5 V |
| Signal‑to‑Noise Ratio (typ) | 86 dB |
| Input Voltage Range | 0 V to Vop |
| Power‑down Current (standby) | 0.5 pA max |
| Typical Power Consumption (100 kSPS, 2.5 V) | 3 mW typ |
| Package Options | 6‑lead SOT‑23 and 8‑lead MSOP |
The AD7680 can sample at up to 100 kSPS.
It operates from a single supply of 2.5 V to 5.5 V.
In standby the device draws a maximum of 0.5 pA.
The part is offered in a 6‑lead SOT‑23 package and an 8‑lead MSOP package.