AD7789 Analog Devices, AD7789 Datasheet - Page 5

• 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

AD7788/AD7789
Table 3.
Parameter
LOGIC INPUTS
LOGIC OUTPUTS
POWER REQUIREMENTS
1
2
Specification is not production tested but is supported by characterization data at initial product release.
Digital inputs equal to V
All Inputs Except SCLK
Input Currents
Input Capacitance
V
V
V
V
Floating-State Leakage Current
Floating-State Output Capacitance
Data Output Coding
Power Supply Voltage
Power Supply Currents
OH
OL
OH
OL
V
V
SCLK Only (Schmitt-Triggered Input)
V
I
I
, Output Low Voltage
, Output Low Voltage
DD
DD
, Output High Voltage
, Output High Voltage
INL
INH
DD
V
V
V
V
V
V
Current
(Power-Down Mode)
, Input Low Voltage
, Input High Voltage
T
T
T
T
T
T
−
(+)
(
(+)
(+)
(
(+)
−
−
GND
)
)
−
−
V
V
T
T
(
(
−
−
)
)
DD
or GND.
2
1
1
1
1
1
1
AD7788A, AD7788B/AD7789B
0.8
0.4
2.0
1.4/2
0.8/1.4
0.3/0.85
0.9/2
0.4/1.1
0.3/0.85
±1
10
V
0.4
4
0.4
±1
10
Offset binary
2.5/5.25
2.7/5.25
75
80
1
DD
−
0.6
Rev. B | Page 5 of 20
Unit
V max
V max
V min
V min/V max
V min/V max
V min/V max
V min/V max
V min/V max
V min/V max
μA max
pF typ
V min
V max
V min
V max
μA max
pF typ
V min/max
V min/max
μA max
μA max
μA max
Test Conditions/Comments
V
V
V
V
V
V
V
V
V
V
All digital inputs
V
V
V
V
AD7789, AD7788 B grade
AD7788 A grade
65 μA typ, V
73 μA typ, V
DD
DD
DD
DD
DD
DD
DD
DD
DD
IN
DD
DD
DD
DD
= V
= 5 V
= 3 V
= 3 V or 5 V
= 5 V
= 5 V
= 5 V
= 3 V
= 3 V
= 3 V
= 3 V, I
= 3 V, I
= 5 V, I
= 5 V, I
AD7788/AD7789
DD
SOURCE
SINK
SOURCE
SINK
DD
DD
= 100 μA
= 1.6 mA
= 3.6 V
= 5.25 V
= 100 μA
= 200 μA