Datasheet
AD7982 Data Sheet
Rev. B | Page 4 of 24
VDD = 2.5 V, VIO = 2.3 V to 5.5 V, REF = 5 V, T
A
= −40°C to +85°C, unless otherwise noted.
Table 3.
Parameter Conditions Min Typ Max Unit
REFERENCE
Voltage Range 2.4 5.1 V
Load Current 1 MSPS, REF = 5 V 350 µA
SAMPLING DYNAMICS
−3 dB Input Bandwidth 10 MHz
Aperture Delay VDD = 2.5 V 2 ns
DIGITAL INPUTS
Logic Levels
V
IL
VIO > 3 V
–0.3
+0.3 × VIO
V
V
IH
VIO > 3 V 0.7 × VIO VIO + 0.3 V
V
IL
VIO ≤ 3 V –0.3 +0.1 × VIO V
V
IH
VIO ≤ 3 V 0.9 × VIO VIO + 0.3 V
I
IL
−1 +1 µA
I
IH
−1 +1 µA
DIGITAL OUTPUTS
Data Format Serial 18 bits, twos complement
Pipeline Delay Conversion results available immediately
after completed conversion
V
OL
I
SINK
= +500 µA 0.4 V
V
OH
I
SOURCE
= −500 µA VIO − 0.3 V
POWER SUPPLIES
VDD 2.375 2.5 2.625 V
VIO Specified performance 2.3 5.5 V
VIO Range 1.8 5.5 V
Standby Current
1, 2
VDD and VIO = 2.5 V, 25°C 0.35 µA
Power Dissipation
VDD = 2.625 V, V
REF
= 5 V, VIO = 3 V
Total 10 kSPS throughput 70 86 µW
1 MSPS throughput 7 8.6 mW
VDD only 4 mW
REF only 1.7 mW
VIO only 1.3 mW
Energy per Conversion 7.0 nJ/sample
TEMPERATURE RANGE
3
Specified Performance T
MIN
to T
MAX
−40 +85 °C
1
With all digital inputs forced to VIO or GND as required.
2
During acquisition phase.
3
Contact an Analog Devices, Inc. sales representative for the extended temperature range.