AD7885JQ Analog Devices Inc, AD7885JQ Datasheet - Page 5

• Manufacturer Part Number: AD7885JQ
• Description: IC ADC 16BIT SAMPLING HS 28-CDIP
• Manufacturer: Analog Devices Inc

Specifications of AD7885JQ

• Rohs Status: RoHS non-compliant
• Number Of Bits: 16
• Sampling Rate (per Second): 166k
• Data Interface: Parallel
• Number Of Converters: 2
• Power Dissipation (max): 325mW
• Voltage Supply Source: Dual ±
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 28-CDIP (0.600", 15.24mm)

Model
AD7884AP
AD7884BP
AD7885AAP –40°C to +85°C
AD7885ABP –40°C to +85°C ± 0.0075
AD7884AQ
AD7884BQ
AD7885JQ
AD7885AQ
AD7885BQ
NOTE
P = Plastic Leaded Chip Carrier (PLCC); Q = CERDIP.
ABSOLUTE MAXIMUM RATINGS
V
AV
V
AV
AGND Pins to DGND . . . . . . . . . . . . –0.3 V to V
AV
AV
GND to DGND . . . . . . . . . . . . . . . . . –0.3 V to V
V
REV. E
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 AD7884/AD7885 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
SS
IN
DD
SS
DD
SS
S, V
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –7 V
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
to AGND . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –7 V
to V
to AGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
to V
IN
F to AGND . . . . . . . . . . V
SS
DD
2
2
. . . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –7 V
Linearity
Temperature
Range
–40°C to +85°C
–40°C to +85°C ± 0.0075
–40°C to +85°C
–40°C to +85°C ± 0.0075
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C ± 0.0075
. . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
ORDERING GUIDE
Error
(% FSR)
1
SS
– 0.3 V to V
SNR
(dB)
84
84
84
84
84
84
82
84
84
DD
DD
DD
Package
Option
P-44A
P-44A
P-44A
P-44A
Q-40
Q-40
Q-28
Q-28
Q-28
+ 0.3 V
+ 0.3 V
+ 0.3 V
–5–
V
V
V
Digital Inputs to DGND . . . . . . . . . . . –0.3 V to V
Digital Outputs to DGND . . . . . . . . . . –0.3 V to V
Operating Temperature Range
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . 300°C
28-Lead CERDIP
40-Lead CERDIP
44-Lead PLCC
Power Dissipation (Any Package) to 75°C . . . . . . . . 1000 mW
Degradation above 75°C by . . . . . . . . . . . . . . . . . . 10 mW/°C
NOTES
1
2
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.
If the AD7884/AD7885 is being powered from separate analog and digital
supplies, AV
mended protection circuit using Schottky diodes.
REF+
REF–
INV
Commercial Plastic (A, B Versions) . . . . . –40°C to +85°C
Industrial CERDIP (J, A, B Versions) . . . . –40°C to +85°C
θ
θ
θ
θ
θ
JA
JC
JA
JA
JC
to AGND . . . . . . . . . . . . . . . V
Thermal Impedance . . . . . . . . . . . . . . . . . . . . 50.9°C/W
Thermal Impedance . . . . . . . . . . . . . . . . . . . . 44.5°C/W
Thermal Impedance . . . . . . . . . . . . . . . . . . . . 47.7°C/W
to AGND . . . . . . . . . . . . . . . V
Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 8.3°C/W
Thermal Impedance . . . . . . . . . . . . . . . . . . . . 17.5°C/W
to AGND . . . . . . . . . . . . . . V
SS
should always come up before V
AD7884/AD7885
WARNING!
SS
SS
SS
SS
– 0.3 V to V
– 0.3 V to V
– 0.3 V to V
. See Figure 12 for a recom-
ESD SENSITIVE DEVICE
DD
DD
DD
DD
DD
+ 0.3 V
+ 0.3 V
+ 0.3 V
+ 0.3 V
+ 0.3 V