AD7723 Series

16-Bit, 1.2 MSPS, CMOS Sigma-Delta ADC

Catalog

16-Bit, 1.2 MSPS, CMOS Sigma-Delta ADC

Part	Configuration	Data Interface	Package / Case	Mounting Type	Number of Inputs	Number of Bits	Input Type	Voltage - Supply, Analog	Sampling Rate (Per Second)	Number of A/D Converters	Architecture	Reference Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply, Digital
Analog Devices AD7723BSZ	ADC	Parallel SPI	44-QFP	Surface Mount	1	16	Differential	5 V	1.2M	1	Sigma-Delta	External Internal	85 °C	-40 °C	5 V

Catalog

16-Bit, 1.2 MSPS, CMOS Sigma-Delta ADC

Key Features

• 16-Bit Sigma-Delta ADC1.2 MSPS Output Word Rate32x/16x Oversampling RatioLow-Pass and Band-Pass Digital FilterLinear Phase

• Standby Mode

• Flexible Parallel or Serial Interface

• Crystal Oscillator

• Single 5 V Supply

• On-Chip 2.5 V Voltage Reference

Description

The AD7723 is a complete 16-bit, sigma-delta ADC. The part operates from a +5 V supply. The analog input is continuously sampled, eliminating the need for an external sample-and-hold. The modulator output is processed by a finite impulse response (FIR) digital filter. The on-chip filtering combined with a high over-sampling-ratio reduces the external anti-alias requirements to first order in most cases. The digital filter frequency response can be programmed to be either low-pass or band-pass.