AD574A
STATUS
STS
+5V SUPPLY
VLOGIC
1
2
28
27
26
25
24
23
22
21
20
19
18
DB11
MSB
DATA MODE SELECT
12/8
MSB
N
I
B
B
L
E
CONTROL
CHIP SELECT
CS
BYTE ADDRESS/
SHORT CYCLE
AO
3
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
3
4
S
T
A
T
E
READ/CONVERT
A
5
SAR
CLOCK
3k
12
R/C
CHIP ENABLE
CE
6
N
I
B
B
L
E
O
U
T
P
U
T
+12/+15V SUPPLY
VCC
7
DIGITAL
DATA
OUTPUTS
12
COMP
IDAC
IDAC
4 x N x IREF
+10V REFERENCE
REF OUT
8
10V
REF
B
=
ANALOG COMMON
AC
9
B
U
F
REFERENCE INPUT
REF IN
-12/-15V SUPPLY
VEE
N
I
B
B
L
E
10
11
12
13
14
8k
IREF
19.95k
9.95k
5k
5k
F
E
R
S
BIPOLAR OFFSET
BIP OFF
17 DB1
DB0
C
LSB
DAC
N
VEE
10V SPAN INPUT
10VIN
16
LSB
DIGITAL COMMON
DC
20V SPAN INPUT
20VIN
15
12
AD574A
AD574A Block Diagram and Pin Configuration
ABSOLUTE MAXIMUM RATINGS*
(Specifications apply to all grades, except where noted)
VCC to Digital Common . . . . . . . . . . . . . . . . . .0 V to +16.5 V
Chip Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . .825 mW
Lead Temperature (Soldering, 10 sec). . . . . . . . . . . . . +300°C
Storage Temperature (Ceramic) . . . . . . . . . .–65°C to +150°C
(Plastic) . . . . . . . . . . . . . . . . . . . . . . . . . . .–25°C to +100°C
*Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated in the
operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
V
V
EE to Digital Common . . . . . . . . . . . . . . . . . . . 0 V to –16.5 V
LOGIC to Digital Common . . . . . . . . . . . . . . . . . . 0 V to +7 V
Analog Common to Digital Common . . . . . . . . . . . . . . . ±1 V
Control Inputs (CE, CS, AO 12/8, R/C) to
Digital Common . . . . . . . . . . . . . . –0.5 V to VLOGIC + 0.5 V
Analog Inputs (REF IN, BIP OFF, 10 VIN) to
Analog Common . . . . . . . . . . . . . . . . . . . . . . . . .VEE to VCC
20 VIN to Analog Common . . . . . . . . . . . . . . . . . . . . . . ±24 V
REF OUT . . . . . . . . . . . . . . . . . . Indefinite Short to Common
Momentary Short to VCC
ORDERING GUIDE
Resolution
Max
Temperature
Range
Linearity Error
Max (TMIN to TMAX
No Missing Codes
(TMIN to TMAX)
Full Scale
T.C. (ppm/°C)
Model1
)
AD574AJ(X)
AD574AK(X)
AD574AL(X)
AD574AS(X)2
AD574AT(X)2
AD574AU(X)2
0°C to +70°C
0°C to +70°C
0°C to +70°C
–55°C to +125°C
–55°C to +125°C
–55°C to +125°C
±1 LSB
±1/2 LSB
±1/2 LSB
±1 LSB
±1 LSB
±1 LSB
11 Bits
12 Bits
12 Bits
11 Bits
12 Bits
12 Bits
50.0
27.0
10.0
50.0
25.0
12.5
NOTES
1X = Package designator. Available packages are: D (D-28) for all grades. E (E-28A) for J and K grades and /883B processed S, T
and U grades. N (N-28) for J, K, and L grades. P (P-28A) for PLCC in J, K grades. Example: AD574AKN is K grade in plastic DIP.
2For details on grade and package offerings screened in accordance with MIL-STD-883, refer to Analog Devices Military Products
Databook.
–4–
REV. B
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