This document describes the features and characteristics of the AD7811/AD7812 10-bit 4-/8-channel sampling ADCs provided by Analog Devices, including operating voltage range of 2.7V to 5.5V, 10-bit ADC, 2.3 microsecond conversion time, and various input configuration options.
The AD7811 and AD7812 are high-speed, low-power, 10-bit successive approximation A/D converters manufactured by Analog Devices. They operate from a single supply voltage ranging from 2.7 V to 5.5 V and feature a conversion time of 2.3 µs. The devices include an onboard track/hold amplifier and a 2.5 V on-chip reference, with the option to use an external reference.
| Resolution | 10 Bits |
|---|---|
| Conversion Time | 2.3 µs max |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Input Channels (AD7811) | Four Single-Ended Inputs |
| Input Channels (AD7812) | Eight Single-Ended Inputs |
| On-Chip Reference Voltage | 2.5 V |
The devices operate from a single supply voltage ranging from 2.7 V to 5.5 V.
The maximum conversion time for both models is 2.3 µs.