AD7739 Analog Devices, AD7739 Datasheet - Page 7

• 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

DOUT
SCLK
SCLK
DIN
CS
CS
t
12
t
11
t
t
4
5A
Figure 4. Load Circuit for Access Time and Bus Relinquish Time
TO OUTPUT
MSB
t
MSB
5
t
13
PIN
Figure 3. Write Cycle Timing Diagram
Figure 2. Read Cycle Timing Diagram
50pF
t
14
t
6
Rev. 0 | Page 7 of 32
t
15
t
7
I
I
SINK
SOURCE
(800µA AT DV
100µA AT DV
(200µA AT DV
100µA AT DV
1.6V
DD
DD
= 5V
= 3V)
DD
DD
03742-0-004
= 5V
= 3V)
LSB
LSB
t
9
03742-0-003
03742-0-002
t
t
16
8
AD7739