Datasheet
AD7822/AD7825/AD7829
Rev. C | Page 4 of 28
Parameter Version B Unit Test Condition/Comment
LOGIC OUTPUTS
Output High Voltage, V
OH
I
SOURCE
= 200 A
4 V min V
DD
= 5 V ± 10%
2.4 V min V
DD
= 3 V ± 10%
Output Low Voltage, V
OL
I
SINK
= 200 A
0.4 V max V
DD
= 5 V ± 10%
0.2 V max V
DD
= 3 V ± 10%
High Impedance Leakage Current ±1 A max
High Impedance Capacitance 10 pF max
CONVERSION RATE
Track-and-Hold Acquisition Time 200 ns max See Circuit Description section
Conversion Time 420 ns max
POWER SUPPLY REJECTION
V
DD
± 10% ±1 LSB max
POWER REQUIREMENTS
V
DD
4.5 V min 5 V ± 10%; for specified performance
5.5 V max
V
DD
2.7 V min 3 V ± 10%; for specified performance
3.3 V max
I
DD
Normal Operation 12 mA max 8 mA typical
Power-Down 5 A max Logic inputs = 0 V or V
DD
0.2 A typ
Power Dissipation V
DD
= 3 V
Normal Operation 36 mW max 24 mW typical
Power-Down
200 kSPS 9.58 mW typ
500 kSPS 23.94 mW typ
1
See the Terminology section of this data sheet.
2
Refer to the Analog Input section for an explanation of the analog input(s).