Datasheet Analog Devices AD7812 — 数据表

a 2.7 V to 5.5 V, 350 kSPS, 10-Bit
4-/8-Channel Sampling ADCs
AD7811/AD7812 FEATURES
10-Bit ADC with 2.3 ␮s Conversion Time
The AD7811 has Four Single-Ended Inputs that
Can Be Configured as Three Pseudo Differential
Inputs with Respect to a Common, or as Two Independent Pseudo Differential Channels
The AD7812 has Eight Single-Ended Inputs that Can
Be Configured as Seven Pseudo Differential Inputs
with Respect to a Common, or as Four Independent
Pseudo Differential Channels
Onboard Track and Hold
Onboard Reference 2.5 V ⴞ 2.5%
Operating Supply Range: 2.7 V to 5.5 V
Specifications at 2.7 V-3.6 V and 5 V ⴞ 10%
DSP-/Microcontroller-Compatible Serial Interface
High Speed Sampling and Automatic Power-Down Modes
Package Address Pin on the AD7811 and AD7812 Allows
Sharing of the Serial Bus in Multipackage Applications
Input Signal Range: 0 V to VREF
Reference Input Range: 1.2 V to VDD Qualified for Automotive Applications GENERAL DESCRIPTION The AD7811 and AD7812 are high speed, low power, 10-bit
A/D converters that operate from a single 2.7 V to 5.5 V supply.
The devices contain a 2.3 µs successive approximation A/D …