AD7792 Просмотр технического описания (PDF) - Analog Devices

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AD7792

Low Power, 16/24-Bit Σ-Δ ADC with Low-Noise In-Amp and Embedded Reference

Analog Devices 

AD7792/AD7793

Pin No. Mnemonic

15

DOUT/RDY

16

DIN

Description

Serial Data Output/Data Ready Output. DOUT/RDY serves a dual purpose. It functions as a serial data output

pin to access the output shift register of the ADC. The output shift register can contain data from any of the

on-chip data or control registers. In addition, DOUT/RDY operates as a data ready pin, going low to indicate

the completion of a conversion. If the data is not read after the conversion, the pin goes high before the

next update occurs.

The DOUT/RDY falling edge can be used as an interrupt to a processor, indicating that valid data is available.

With an external serial clock, the data can be read using the DOUT/RDY pin. With CS low, the data/control

word information is placed on the DOUT/RDY pin on the SCLK falling edge and is valid on the SCLK

rising edge.

Serial Data Input. This serial data input is to the input shift register on the ADC. Data in this shift register is

transferred to the control registers within the ADC; the register selection bits of the communications

register identify the appropriate register.

Rev. B | Page 10 of 32

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