The AD7660 is a 16-bit, 100 kSPS CMOS ADC
The AD7660 is a 16‑bit, 100 kSPS charge‑redistribution SAR analog‑to‑digital converter that operates from a single 5 V supply. It includes an internal conversion clock, error‑correction circuitry, and both serial and parallel system interfaces. The device is calibrated at the factory and offers high linearity with no missing codes.
Key features include 21 mW typical power dissipation (7 µW in power‑down), a 0 V‑to‑2.5 V input range, 87 dB minimum SNR, and a 48‑lead LQFP package. Applications cover data acquisition, battery‑powered systems, instrumentation, medical instruments, and process control. Layout guidelines emphasize separating analog and digital grounds and providing proper decoupling for optimal performance.
| Resolution | 16 Bits |
|---|---|
| Throughput | 100 kSPS |
| Typical Power Dissipation | 21 mW |
| Power‑Down Current | 7 µW |
| Signal‑to‑Noise Ratio (SNR) | 87 dB min, 90 dB typ @ 10 kHz |
| Total Harmonic Distortion (THD) | -96 dB max @ 10 kHz |
The AD7660 can sample at up to 100 kSPS.
It operates from a single 5 V supply and supports both 3 V and 5 V logic levels.
The device accepts an analog input range from 0 V to 2.5 V.