REV. B –3–
AD7888
Parameter A Version
1
B Version
1
Unit Test Condition/Comment
POWER REQUIREMENTS
V
DD
2.7/5.25 2.7/5.25 V min/max
I
DD
Normal Mode
5
(Static) 700 700 µA max
Normal Mode
(Operational) 700 700 µA typ f
SAMPLE
= 125 kSPS
Using Standby Mode 450 450 µA typ f
SAMPLE
= 50 kSPS
Using Shutdown Mode 80 80 µA typ f
SAMPLE
= 10 kSPS
12 12 µA typ f
SAMPLE
= 1 kSPS
Standby Mode
6
200 200 µA max V
DD
= 2.7 V to 5.25 V
Shutdown Mode
6
22 µA max V
DD
= 4.75 V to 5.25 V (0.5 µA typ)
11 µA max V
DD
= 2.7 V to 3.6 V
Normal-Mode Power Dissipation 3.5 3.5 mW max V
DD
= 5 V
2.1 2.1 mW max V
DD
= 3 V
Shutdown Power Dissipation 10 10 µW max V
DD
= 5 V
33 µW max V
DD
= 3 V
Standby Power Dissipation 1 1 mW max V
DD
= 5 V
600 600 µW max V
DD
= 3 V
NOTES
1
Temperature ranges as follows: A Version: –40°C to +105°C; B Version: –40°C to +105°C.
2
See Terminology.
3
SNR calculation includes distortion and noise components.
4
Sample tested @ 25°C to ensure compliance.
5
All digital inputs @ GND except CS @ V
DD
. No load on the digital outputs. Analog inputs @ GND.
6
SCLK @ GND when SCLK off. All digital inputs @ GND except for CS @ V
DD
. No load on the digital outputs. Analog inputs @ GND.
Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS
1
(T
A
= 25°C unless otherwise noted)
V
DD
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Analog Input Voltage to AGND . . . . . –0.3 V to V
DD
+ 0.3 V
Digital Input Voltage to AGND . . . . . . –0.3 V to V
DD
+ 0.3 V
Digital Output Voltage to AGND . . . . –0.3 V to V
DD
+ 0.3 V
REFIN/REFOUT to AGND . . . . . . . . –0.3 V to V
DD
+ 0.3 V
Input Current to Any Pin Except Supplies
2
. . . . . . . . ± 10 mA
Operating Temperature Range
Commercial
(A Version) . . . . . . . . . . . . . . . . . . . . . . –40°C to +105°C
(B Version) . . . . . . . . . . . . . . . . . . . . . . . 0°C to +105°C
Storage Temperature Range . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
SOIC, TSSOP Package, Power Dissipation . . . . . . . . 450 mW
θ
JA
Thermal Impedance . . . . . . . . . . . . 124.9°C/W (SOIC)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150.4°C/W (TSSOP)
θ
JC
Thermal Impedance . . . . . . . . . . . . . 42.9°C/W (SOIC)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.6°C/W (TSSOP)
Lead Temperature, Soldering
Vapor Phase (60 secs) . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . . . 220°C
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 kV
NOTES
1
Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
2
Transient currents of up to 100 mA will not cause SCR latch-up.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD7888 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
ORDERING GUIDE
Linearity
Error Package Package
Model (LSB)
1
Description Option
AD7888AR ± 2 SOIC R-16A
AD7888BR ± 1 SOIC R-16A
AD7888ARU ± 2 TSSOP RU-16
AD7888BRU ± 1 TSSOP RU-16
EVAL-AD7888CB
2
EVAL-CONTROL BRD2
3
NOTES
1
Linearity error here refers to integral linearity error.
2
This can be used as a stand-alone evaluation board or in conjunction with the
EVAL-CONTROL BOARD for evaluation/demonstration purposes.
3
This board is a complete unit allowing a PC to control and communicate with all
Analog Devices evaluation boards ending in the CB designators.
