AD7719 Analog Devices, AD7719 Datasheet - Page 16

• Manufacturer Part Number: AD7719
• Description: Low Voltage, Low Power, 16-/24-Bit, Dual Sigma Delta ADC
• Manufacturer: Analog Devices

Specifications of AD7719

• Resolution (bits): 24bit
• # Chan: 6
• Sample Rate: n/a
• Interface: Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni
• Ain Range: (2Vref) p-p,(2Vref/PGA Gain) p-p,(Vref) p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: SOIC,SOP

AD7719
ON-CHIP REGISTERS
Both the main and auxiliary ADC channels are controlled and con-
figured via a number of on-chip registers as shown in Figure 10 and
described in more detail in the following pages. In the following
descriptions, SET implies a logic 1 state and CLEARED implies
a logic 0 state, unless otherwise stated.
DIN
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DIN
DIN
DIN
DIN
DIN
DIN
DIN
DIN
DIN
DIN
Figure 10. On-Chip Registers
WEN R/W
MAIN ADC CONTROL REGISTER
COMMUNICATIONS REGISTER
MAIN ADC OFFSET REGISTER
AUX ADC CONTROL REGISTER
AUX ADC OFFSET REGISTER
MAIN ADC DATA REGISTER
AUX ADC GAIN REGISTER
AUX ADC DATA REGISTER
MAIN ADC GAIN REGISTER
ADC STATUS REGISTER
I/O CONTROL REGISTER
TEST REGISTER
FILTER REGISTER
MODE REGISTER
ID REGISTER
0
–16–
0
A3
A2
A1
A0
REGISTER
DECODER
SELECT
REV. A