This is a datasheet for Analog Devices AD7687, a 16-bit, 1.5 LSB INL, 250 kSPS PulSAR™ Differential ADC. The product features include 16-bit resolution with no missing codes, 250 kSPS throughput, ±0.4 LSB typ, ±1.5 LSB max INL, 96.5 dB dynamic range, and more.
The AD7687 is a 16‑bit charge‑redistribution successive‑approximation ADC that operates from a single 2.3 V to 5.5 V supply. It offers true differential inputs, up to 250 kSPS throughput, 96.5 dB dynamic range, and a low standby current of 1 nA. The device includes a versatile SPI‑compatible serial interface that supports daisy‑chaining and optional BUSY indication.
Packaged in a 10‑lead MSOP or 10‑lead QFN (LFCSP), the AD7687 is rated for –40 °C to +85 °C operation and is suited for battery‑powered equipment, data acquisition, instrumentation, medical instruments, and process control applications.
| Resolution | 16 Bits |
|---|---|
| Maximum Throughput | 250 kSPS |
| Power Dissipation (2.5 V, 100 kSPS) | 1.35 mW |
| Supply Voltage Range | 2.3 V to 5.5 V |
| Absolute Input Voltage | ±0.1 V relative to REF |
| Dynamic Range | 96.5 dB |
| Signal‑to‑Noise Ratio (20 kHz) | 95.5 dB |
| Standby Current | 1 nA |
The AD7687 can sample up to 250 kSPS.
It operates from a single supply of 2.3 V to 5.5 V.
The device has a standby current of 1 nA.
The AD7687 provides a dynamic range of 96.5 dB.