The AD7887 is a high speed, low power, 12-bit analog-to-digital converter (ADC) that operates from a single 2.7 V to 5.25 V power supply. It offers flexible power/throughput rate management and a shutdown mode with a current consumption of only 1 μA.
The AD7887 is a 12‑bit analog‑to‑digital converter offered in 8‑lead SOIC and MSOP packages. It operates from a single 2.7 V to 5.25 V supply and can be configured for single‑ or dual‑channel operation, providing flexible power‑down modes and a serial interface compatible with SPI, QSPI, Microwire and DSP protocols.
The document provides full electrical specifications, timing characteristics, pin descriptions, and typical performance graphs. Key data include a 125 kSPS maximum throughput, low power consumption (down to 5 pW in shutdown), and a 71 dB typical signal‑to‑noise ratio. It also lists absolute maximum ratings and recommended layout guidelines for reliable operation.
| Maximum Throughput Rate | 125 kSPS |
|---|---|
| Shutdown Current | 1 pA max |
| Serial Interface Compatibility | SPI, QSPI, Microwire, DSP |
| Input Voltage Range (single‑channel) | 0 to Vref |
The AD7887 can sample at up to 125 kSPS.
The AD7887 supports SPI, QSPI, Microwire and DSP‑compatible serial interfaces.