器件名称: AD7329
功能描述: 1 MSPS, 8-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC
文件大小: 538.72KB 共40页
简 介:1 MSPS, 8-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC AD7329
FEATURES
12-bit plus sign SAR ADC True bipolar input ranges Software-selectable input ranges ±10 V, ±5 V, ±2.5 V, 0 V to +10 V 1 MSPS throughput rate Eight analog input channels with channel sequencer Single-ended true differential and pseudo differential analog input capability High analog input impedance MUXOUT and ADCIN pins allow separate access to mux and ADC Low power: 21 mW Temperature indicator Full power signal bandwidth: 20 MHz Internal 2.5 V reference High speed serial interface iCMOS process technology 24-lead TSSOP package Power-down modes
FUNCTIONAL BLOCK DIAGRAM
MUXOUT+ MUXOUT– ADC IN– ADC IN+ VDD REFIN/REFOUT VCC 2.5V VREF VIN0 VIN1 VIN2 VIN3 VIN4 VIN5 VIN6 VIN7 DOUT CHANNEL SEQUENCER CONTROL LOGIC AND REGISTERS SCLK CS DIN
05402-001
I/P MUX
T/H
13-BIT SUCCESSIVE APPROXIMATION ADC
AD7329
VSS AGND VDRIVE
Figure 1.
GENERAL DESCRIPTION
The AD7329 1 is an 8-channel, 12-bit plus sign successive approximation ADC designed on the iCMOS (industrial CMOS) process. iCMOS is a process combining high voltage CMOS and low voltage CMOS. It enables the development of a wide range of high performance analog ICs capable of 33 V operation in a footprint that no previous generation of high voltage parts could achieve. Unlike analog ICs using conventional CMOS processes, iCMOS components can accept bipolar input signals while providing increased performance, dramatically reduced power c……
