AD974AR Analog Devices Inc, AD974AR Datasheet - Page 4

• Manufacturer Part Number: AD974AR
• Description: A/D Converter (A-D) IC
• Manufacturer: Analog Devices Inc
• Type: Data Acquisition System (DAS)r

Specifications of AD974AR

• Package/case: 28-SOIC
• Features: 4?Ch., 200kSPS Data Acquisition System
• Interface Type: Serial
• Number Of Bits: 16
• Number Of Channels: 4
• Mounting Type: Surface Mount
• Rohs Status: RoHS non-compliant
• Resolution (bits): 16 b
• Sampling Rate (per Second): 200k
• Data Interface: Serial
• Voltage Supply Source: Analog and Digital
• Voltage - Supply: 5V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: EVAL-AD974CB - BOARD EVAL FOR AD974
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD974
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 AD974 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.
Model
AD974AN
AD974BN
AD974AR
AD974BR
AD974ARS
AD974BRS
ABSOLUTE MAXIMUM RATINGS
Analog Inputs
Ground Voltage Differences
Supply Voltages
Digital Inputs . . . . . . . . . . . . . . . . . . . –0.3 V to V
Internal Power Dissipation
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . .+150 C
Storage Temperature Range N, R . . . . . . . . –65 C to +150 C
Lead Temperature Range
NOTES
1
2
Stresses above those listed under Absolute Maximum Ratings may cause perma-
Specification is for device in free air:
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.
28-Lead PDIP:
28-Lead SOIC:
28-Lead SSOP:
VxA, VxB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 V
CAP . . . . . . . . . . . . . . . . +V
REF . . . . . . . . . . . . . . . . . . . . Indefinite Short to AGND2,
DGND, AGND1, AGND2 . . . . . . . . . . . . . . . . . . .
V
V
V
PDIP (N), SOIC (R), SSOP (RS) . . . . . . . . . . . . . 700 mW
(Soldering 10 sec) . . . . . . . . . . . . . . . . . . . . . . . . . .+300 C
ANA
DIG
DIG
to V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 V
ANA
JA
JA
JA
= 100 C/W,
= 75 C/W,
= 109 C/W,
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Temperature
Range
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
2
JC
JC
JC
= 24 C/W
= 31 C/W
= 39 C/W
ANA
+ 0.3 V to AGND2 – 0.3 V
Momentary Short to V
1
Max INL
3.0 LSB
2.0 LSB
3.0 LSB
2.0 LSB
3.0 LSB
2.0 LSB
DIG
ORDERING GUIDE
+ 0.3 V
0.3 V
ANA
–4–
Min S/(N+D)
83 dB
85 dB
83 dB
85 dB
83 dB
85 dB
Figure 1. Load Circuit for Digital Interface Timing
TO OUTPUT
PIN
EXT/INT
AGND1
AGND2
PWRD
DGND
PIN CONFIGURATION
V
CAP
V3A
V3B
V4A
V4B
REF
SOIC, DIP AND SSOP
R/C
BIP
DIG
100pF
10
11
12
13
14
C
1
2
3
4
5
6
7
8
9
L
Package
Description
28-Lead Plastic DIP
28-Lead Plastic DIP
28-Lead SOIC
28-Lead SOIC
28-Lead SSOP
28-Lead SSOP
(Not to Scale)
TOP VIEW
AD974
1.6mA
500 A
WARNING!
28
27
26
25
24
23
22
21
20
19
18
17
16
15
I
I
OL
OH
V2A
V1B
V1A
V
V2B
A0
A1
BUSY
CS
WR1
WR2
DATA
DATACLK
SYNC
ANA
ESD SENSITIVE DEVICE
+1.4V
Package
Options
N-28B
N-28B
R-28
R-28
RS-28
RS-28
REV. A