AD7651 is a 16-bit, 100kSPS, single-channel, serial/parallel interface, low power SAR ADC that supports SPI, QSPI, MICROWIRE, DSP, etc.
The AD7651 is a 16‑bit, charge‑redistribution SAR analog‑to‑digital converter that operates from a single 5 V supply. It offers 100 kSPS throughput, an internal 2.5 V reference, and both parallel and serial (SPI/QSPI/MICROWIRE) interfaces, making it suitable for data‑acquisition, instrumentation, and DSP applications.
Available in 48‑lead LQFP and 48‑lead LFCSP packages, the device operates from –40 °C to +85 °C and supports a unipolar input range of 0 V to 2.5 V. Application notes describe how to extend the input range for bipolar or wider voltage spans.
| Resolution | 16 Bits |
|---|---|
| Throughput | 100 kSPS |
| Analog Input Voltage Range | 0 V to 2.5 V |
| Internal Reference Voltage | 2.48 V – 2.52 V (typ 2.5 V) |
| Operating Temperature Range | -40 °C to +85 °C |
| Package Options | 48‑lead LQFP, 48‑lead LFCSP |
The AD7651 provides a 16‑bit resolution.
It can sample at up to 100 kSPS.
The device operates from a single 5 V power supply.
The unipolar analog input range is 0 V to 2.5 V.