AD7722ASZ Analog Devices Inc, AD7722ASZ Datasheet - Page 4

• Manufacturer Part Number: AD7722ASZ
• Description: ADC Single Delta-Sigma 195KSPS 16-Bit Parallel/Serial 44-Pin MQFP
• Manufacturer: Analog Devices Inc

Specifications of AD7722ASZ

• Package: 44MQFP
• Resolution: 16 Bit
• Sampling Rate: 195 KSPS
• Architecture: Delta-Sigma
• Number Of Analog Inputs: 1
• Digital Interface Type: Parallel|Serial (3-Wire)
• Input Type: Voltage
• Polarity Of Input Voltage: Unipolar|Bipolar
• Number Of Bits: 16
• Sampling Rate (per Second): 220k
• Data Interface: Serial, Parallel
• Number Of Converters: 1
• Power Dissipation (max): 375mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 44-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD7722
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
DGND, AGND1, AGND2 . . . . . . . . . . . . . . . . . . . . . . ± 0.3 V
Input current to any pin except the supplies
Operating Temperature Range . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
θ
θ
Lead Temperature, Soldering
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 AD7722 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.
Stresses above those listed under Absolute Maximum Ratings may cause
permanent damage to the device. This is a stress rating only; functional opera -
tion 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 up to 100 mA will not cause SCR latch-up.
JA
JC
IN
A
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C
DD
DD
= 25°C, unless otherwise noted.)
(+), V
DD
Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . . . 72°C/W
Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . . . 20°C/W
, AV
, AV
to DGND . . . . . . . . . . . . . . . . . . . . . . . .–0.3 V to +7 V
IN
DD1
DD1
(–) to AGND . . . . . . . . . . –0.3 V to AV
to AGND . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
to DVDD . . . . . . . . . . . . . . . . . . . –1 V to +1 V
1
2
. . . . . . . . ± 10 mA
DD
DD
DD
DD
DD
+ 0.3 V
+ 0.3 V
+ 0.3 V
+ 0.3 V
+ 0.3 V
–4–
Model
AD7722AS
EVAL-AD7722CB
Figure 1. Load Circuit for Timing Specifications
OUTPUT
Temperature
–40°C to +85°C 44-Lead MQFP S-44B
PIN
TO
ORDERING GUIDE
50pF
C
L
I
1.6mA
I
200 A
Package
Description
Evaluation Board
OL
OH
1.6V
Package
Option
REV. B