EVAL-AD7725CBZ Analog Devices Inc, EVAL-AD7725CBZ Datasheet - Page 8

• Manufacturer Part Number: EVAL-AD7725CBZ
• Description: BOARD EVALUATION FOR AD7725
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD7725CBZ

• Number Of Adc's: 1
• Number Of Bits: 16
• Sampling Rate (per Second): 900k
• Data Interface: Serial, Parallel
• Inputs Per Adc: 1 Differential
• Input Range: ±VREF
• Power (typ) @ Conditions: 615mW @ 900kSPS
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD7725
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD7725
ABSOLUTE MAXIMUM RATINGS
(T
DV
AV
AV
AGND, AGND1 to DGND . . . . . . . . . . . . . –0.3 V to +0.3 V
Digital Inputs to DGND . . . . . . . . . . –0.3 V to DV
Digital Outputs to DGND . . . . . . . . . –0.3 V to DV
V
REF1 to AGND . . . . . . . . . . . . . . . . . –0.3 V to AV
REF2 to AGND . . . . . . . . . . . . . . . . . –0.3 V to AV
REFIN to AGND . . . . . . . . . . . . . . . . –0.3 V to AV
DGND, AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 0.3 V
Input Current to Any Pin except Supplies
I
Operating Temperature Range . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Lead Temperature, Soldering
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kV
NOTES
1
2
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
AD7725 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.
DD
JA
JC
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 indicated in the operational
section of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
Transient currents of up to 100 mA will not cause SCR latch-up.
IN
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C
A
DD
DD
DD
(+), V
Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W
Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . . . 20°C/W
(AI
= 25°C, unless otherwise noted.)
, AV
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
to DGND . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
DD
IN
DD1
+ DI
(–) to AGND . . . . . . . . . . . –0.3 V to AV
DB0 DB15
to DV
RD/WR
DD
–
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 mA
INT
RS
CS
DD
Figure 8. Parallel Mode (Reading the Status Register and Writing Instructions)
. . . . . . . . . . . . . . . . . . . . –1 V to +1 V
THREE-STATE
t
35
1
t
37
2
. . . . . . . . . ± 10 mA
t
34
DD
DD
DD
DD
DD
DD
STATUS
+ 0.3 V
+ 0.3 V
+ 0.3 V
+ 0.3 V
+ 0.3 V
+ 0.3 V
–8–
t
Model
AD7725BS
AD7725BS-REEL –40°C to +85°C Metric Quad S-44-2
EVAL-
AD7725CB
EVAL-
CONTROL
BRD2
NOTES
1
2
3
38
S = Metric Quad Flat Package (MQFP).
This board can be used as a standalone evaluation board or in conjunction with the
Evaluation Board Controller. This board is a complete unit allowing a PC to
t
t
Evaluation Board Controller for evaluation/demonstration purposes. It is accom-
panied by software and technical documentation.
control and communicate with all Analog Devices boards ending in the CB
designator. To obtain the complete evaluation kit, the following needs to be
ordered: EVAL-AD7725CB, EVAL-CONTROL BRD2, and a 12 V ac transformer.
The Filter Wizard software can be downloaded from the Analog Devices website.
THREE-STATE
33
36
3
2
t
23
INSTRUCTION
Temperature
Range
–40°C to +85°C Metric Quad S-44-2
t
ORDERING GUIDE
39
t
40
THREE-STATE
Package
Description Option
Flatpack
Flatpack
Evaluation
Board
Controller
Board
Package
REV. A
1