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AD7720 - CMOS Sigma-Delta Modulator

Download the AD7720 datasheet PDF. This datasheet also covers the AD7 variant, as both devices belong to the same cmos sigma-delta modulator family and are provided as variant models within a single manufacturer datasheet.

General Description

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.

Key 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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (AD7-720.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Analog Devices

Part Number Description
AD7721 CMOS 16-Bit/ 468.75 kHz/ Sigma-Delta ADC
AD7722 16-Bit 195kSPS CMOS Sigma-Delta ADC
AD7723 16-Bit 1.2 MSPS CMOS Sigma-Delta ADC
AD7724 Dual CMOS Modulators
AD7725 16-Bit 900 kSPS ADC with a Programmable Postprocessor

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
a 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 REFERENCE REF2 VIN(+) VIN(–) SIGMA-DELTA MODULATOR DATA SCLK MZERO GC CLOCK CIRCUITRY XTAL1/MCLK XTAL2 BIP CONTROL LOGIC DVAL RESETO RESET STBY GENERAL DESCRIPTION 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.