AD7951 is a 14-bit, 1 MSPS, programmable input range Pulsar® ADC with multiple input ranges and mode selection, which can operate at 1 MSPS (warp mode), 800 kSPS (normal mode) and 670 kSPS (pulse mode).
The AD7951 is a 14‑bit successive‑approximation register (SAR) analog‑to‑digital converter offering multiple programmable input ranges (0‑5 V, 0‑10 V, ±5 V, ±10 V) and three sampling modes: warp (1 MSPS), normal (800 kSPS) and impulse (670 kSPS). It features both parallel and serial interfaces, an internal 5 V reference, and low power dissipation (10 mW at 100 kSPS, 235 mW at 1 MSPS).
Designed for process control, medical instruments, high‑speed data acquisition, DSP, instrumentation and ATE, the AD7951 includes detailed layout guidelines to minimize noise, separate analog/digital grounds, and provide robust ESD protection.
| Resolution | 14 Bits |
|---|---|
| Input Voltage Range (unipolar) | 0 V to 5 V |
| Power Dissipation (1 MSPS, internal reference low) | 235 mW |
| Signal‑to‑Noise Ratio | 85 dB @ 2 kHz |
It supports four ranges: 0‑5 V, 0‑10 V, ±5 V, and ±10 V.
The device operates from –40 °C to +85 °C.