AD7866 is a dual 1MSPS, 12-bit, 2-channel SAR ADC with serial interface from Analog Devices. It has a high throughput rate, low power consumption, wide input bandwidth, 70dB SNR, 2.5V reference voltage, -40~+125℃ working temperature range, flexible power/throughput rate management, simultaneous conversion/read, no pipeline delays, high-speed serial interface and other features.
The AD7866 is a dual‑channel, 12‑bit successive‑approximation ADC that delivers up to 1 MSPS conversion rate while consuming as little as 11.4 mW at 3 V. It supports a wide input bandwidth, on‑board 2.5 V reference, and flexible power/throughput management, making it suitable for microprocessor or DSP interfacing.
The device is offered in a 20‑lead thin‑shrink small‑outline (TSSOP) package and operates from 2.7 V to 5.25 V analog and digital supplies. It provides simultaneous conversion on both channels, selectable input ranges (0 V‑Vpp or 2×Vpp), and output coding (straight binary or two’s‑complement). Detailed pin configurations, timing specifications, and absolute maximum ratings are included for designers.
| Resolution | 12 bits |
|---|---|
| Throughput Rate | 1 MSPS |
| Power Consumption (3 V, 1 MSPS) | 11.4 mW max |
| Reference Voltage | 2.5 V (on‑board) |
| Package | 20‑lead TSSOP |
| Operating Temperature | -40 °C to +125 °C |
The AD7866 can achieve a maximum throughput of 1 MSPS.
At 3 V supply and 1 MSPS operation the device consumes up to 11.4 mW.
The AD7866 is offered in a 20‑lead thin‑shrink small outline (TSSOP) package.
The device operates from –40 °C to +125 °C.