Datasheet Analog Devices AD7729ARZ — Ficha de datos

a Dual Sigma-Delta ADC
with Auxiliary DAC
AD7729 FEATURES
+3 V Supply Voltage
Baseband Serial Port (BSPORT)
Differential IRx and QRx
ADC Channels
Two 15-Bit Sigma-Delta A/D Converters
FIR Digital Filters
64 dB SNR
Output Word Rate 270.83 kHz
Twos Complement Coding
On-Chip Offset Calibration
Power-Down Mode
Auxiliary D/A Converter
Auxiliary Serial Port (ASPORT)
On-Chip Voltage Reference
Low Power
28-Lead TSSOP/28-Lead SOIC GENERAL DESCRIPTION This monolithic 3 V CMOS device is a low power, two-channel,
input port with signal conditioning. The receive path is composed of two high performance sigma-delta ADCs with digital
filtering. A common bandgap reference feeds the ADCs.
A control DAC is included for such functions as AFC. The auxiliary functions can be accessed via the auxiliary port (ASPORT).
This device is available in a 28-lead TSSOP package or a …