Datasheet

AD7484
Rev. C | Page 4 of 20
Parameter Min Typ Max Unit Test Conditions/Comments
LOGIC INPUTS
Input High Voltage, V
INH
V
DRIVE
−1 V
Input Low Voltage, V
INL
0.4 V
Input Current, I
IN
±1 µA
Input Capacitance, C
IN
4
10 pF
LOGIC OUTPUTS
Output High Voltage, V
OH
0.7 × V
DRIVE
V
Output Low Voltage, V
OL
0.4 V
Floating State Leakage Current ±10 µA
Floating State Output Capacitance
4
10 pF
Output Coding Straight (Natural) Binary
CONVERSION RATE
Conversion Time 300 ns
Track-and-Hold Acquisition Time (t
ACQ
) 70 ns Sine wave input
70 ns Full-scale step input
Throughput Rate 2.5 MSPS Parallel Mode 1
3 MSPS Parallel Mode 2
POWER REQUIREMENTS
V
DD
5 V ± 5%
V
DRIVE
2.7 5.25 V
I
DD
Normal Mode (Static) 13 mA
CS and RD = Logic 1
Normal Mode (Operational) 20 mA
Nap Mode 0.5 mA
Standby Mode 0.5 2 µA
Power Dissipation
Normal Mode (Operational) 100 mW
Nap Mode 2.5 mW
Standby Mode
5
10 µW
1
SINAD figures quoted include external analog input circuit noise contribution of approximately 1 dB.
2
See the Typical Performance Characteristics section for analog input circuits used.
3
See the Terminology section.
4
Sample tested @ 25°C to ensure compliance.
5
Digital input levels at DGND or V
DRIVE
.