Datasheet

AD7625 Data Sheet
Rev. A | Page 4 of 24
Parameter Test Conditions/Comments Min Typ Max Unit
LVDS I/O (ANSI-644)
Data Format Serial LVDS twos complement
Differential Output Voltage, V
OD
R
L
= 100 Ω 200 350 454 mV
Common-Mode Output Voltage, V
OCM
2
R
L
= 100 Ω 850 1250 1375 mV
Differential Input Voltage, V
ID
100
650
mV
Common-Mode Input Voltage, V
ICM
800 1575 mV
POWER SUPPLIES
Specified Performance
VDD1 4.75 5 5.25 V
VDD2 2.37 2.5 2.63 V
VIO 2.37 2.5 2.63 V
Operating Currents
Static—Not Converting
VDD1
4.5
7.8
mA
VDD2 17 22.7 mA
VIO Self-clocked mode and echoed-
clock mode
11 13 mA
With Internal Reference 6 MSPS throughput
VDD1 11 15.4 mA
VDD2 21.5 28.3 mA
VIO Self-clocked mode and echoed-
clock mode
13.5 16 mA
Without Internal Reference 6 MSPS throughput
VDD1 9 12.1 mA
VDD2 21 26 mA
VIO Self-clocked mode and echoed-
clock mode
13.5 16 mA
Power Dissipation
3
Static—Not Converting 95 130 mW
With Internal Reference 6 MSPS throughput 145 190 mW
Without Internal Reference 6 MSPS throughput 135 165 mW
Energy per Conversion 6 MSPS throughput 22 nJ/sample
TEMPERATURE RANGE
Specified Performance T
MIN
to T
MAX
−40 +85 °C
1
Using an external reference.
2
The ANSI-644 LVDS specification has a minimum output common mode (V
OCM
) of 1125 mV.
3
Power dissipation is for the AD7625 device only. In self-clocked interface mode, 9 mW is dissipated in the 100 Ω terminator. In echoed-clock interface mode, 18 mW is
dissipated in two 100 Ω terminators.