AD7739 Analog Devices, AD7739 Datasheet - Page 31

• Manufacturer Part Number: AD7739
• Description: 8-Channel, 4 kHz, 24-Bit Sigma-Delta A/D Converter
• Manufacturer: Analog Devices

Specifications of AD7739

• Resolution (bits): 24bit
• # Chan: 8
• Sample Rate: 3.05MSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni,SE-Bip,SE-Uni
• Ain Range: Bip 0.625,Bip 1.25,Bip 2.5V,Uni 0.625,Uni 1.25,Uni 2.5V
• Adc Architecture: Sigma-Delta
• Pkg Type: SOP

AV
+
DD
10µF
0.1µF
ADR421
AV
100Ω
100Ω
+
100Ω
0.1µF
DD
Figure 28. Typical Connections for the AD7739 Application
10µF
ANALOG
INPUTS
0.1µF
0.1µF
0.1µF
REFIN(+)
REFIN(-)
AINCOM
AIN0
AIN7
0.1µF
Rev. 0 | Page 31 of 32
AV
DD
MUX
AD7739
AGND
BUFFER
GENERATOR
INTERFACE
CONTROL
SERIAL
CLOCK
LOGIC
Σ-∆ ADC
24-BIT
AND
DGND
DV
MCLKOUT
MCLKIN
RESET
SCLK
DIN
DOUT
RDY
CS
DD
DV
DD
6.144MHz
0.1µF
33pF
HOST
SYSTEM
DV
+
DD
10µF
33pF
AD7739