AD7720, AD7 Datasheet (Analog Devices) - CMOS Sigma-Delta Modulator

AD7720, AD7, CMOS Sigma-Delta Modulator

This device is a 7th order sigma-delta modulator that converts the analog input signal into a high speed 1-bit data stream.

The part operates from a +5 V supply and accepts a differential input range of 0 V to +2.5 V or ± 1.25 V centered about a commonmode bias.

The analog input is continuously sam

AD7720 Features

* 12.5 MHz Master Clock Frequency 0 V to +2.5 V or ؎ 1.25 V Input Range Single Bit Output Stream 90 dB Dynamic Range Power Supplies: AVDD, DVDD: +5 V ؎ 5% On-Chip 2.5 V Voltage Reference 28-Lead TSSOP CMOS Sigma-Delta Modulator AD7720 FUNCTIONAL BLOCK DIAGRAM AVDD AGND DVDD DGND REF1 AD7720 2.5V RE