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
iCMOS is a process combining high voltage CMOS and low voltage CMOS. Unlike analog ICs using conventional CMOS processes, iCMOS components can accept bipolar input signals while providing increased performance, dramatically reduced power consumption, and reduced package size.
Analog Devices
