AD7789 Analog Devices, AD7789 Datasheet - Page 7

• Manufacturer Part Number: AD7789
• Description: 24-Bit, Single-Channel, Ultra Low Power, Sigma Delta A/D Converter
• Manufacturer: Analog Devices

Specifications of AD7789

• Resolution (bits): 24bit
• # Chan: 1
• Sample Rate: n/a
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: SOP

TIMING DIAGRAMS
DOUT/RDY (O)
SCLK (I)
SCLK (I)
DIN (I)
CS (I)
CS (I)
TO OUTPUT
I = INPUT, O = OUTPUT
Figure 2. Load Circuit for Timing Characterization
I = INPUT, O = OUTPUT
PIN
t
1
Figure 4. Write Cycle Timing Diagram
Figure 3. Read Cycle Timing Diagram
50pF
t
t
2
8
Rev. B | Page 7 of 20
t
9
MSB
MSB
t
10
I
100µA WITH V
I
100µA WITH V
SINK
SOURCE
t
3
(1.6mA WITH V
t
(200µA WITH V
4
1.6V
DD
DD
LSB
= 3V)
= 3V)
DD
t
7
LSB
= 5V,
DD
t
11
= 5V,
t
6
t
5
AD7788/AD7789