The AD7890 is an 8-channel 12-bit data acquisition system. It has a fast 12-bit ADC with a 5.9μs conversion time. It runs on a single 5V supply and has low power consumption (maximum 50mW). It supports selection of input ranges, including ±10V, 0V to 4.096V and 0V to 2.5V.
The AD7890 is an 8‑channel 12‑bit data acquisition system‑on‑a‑chip that integrates a multiplexer, track/hold amplifier, reference and a high‑speed serial interface. It operates from a single 5 V supply and offers selectable input ranges for different variants.
The document provides full electrical specifications, timing diagrams, absolute maximum ratings, pin descriptions, and ordering options for PDIP, CERDIP and SOIC packages, along with revision history and product highlights.
| Conversion Time | 5.9 ps max |
|---|---|
| Input Channels | 8 single‑ended |
| Operating Temperature (Commercial) | -40°C to +85°C |
| Package (example) | 24‑Lead PDIP |
The AD7890 converts an input in 5.9 ps maximum.
It provides eight single‑ended analog input channels.
The device operates from a 5 V supply with a ±5 % tolerance.