AD574AJDZ Datasheet, PDF (4/12 Pages) Analog Devices – Complete 12-Bit A/D Converter

AD574A
+5V SUPPLY
VLOGIC
1
28
STATUS
STS
DATA MODE SELECT ₂
12/8
MSB
N
27
DB11
MSB
CHIP SELECT ₃
CS
BYTE ADDRESS/
SHORT CYCLE ⁴
AO
CONTROL
I
3
B
B
S
T
L
E
26 DB10
25 DB9
READ/CONVERT 5
R/C
CLOCK
SAR
12 ^{A A 24 DB8}
T
CHIP ENABLE ₆
CE
+12/+15V SUPPLY ₇
VCC
+10V REFERENCE ₈
REF OUT
ANALOG COMMON ₉
AC
3k
10V
REF
COMP ¹²
IDAC
IDAC =
4 x N x IREF
EN
O
U
T
P
U
I
B
B
L
E
TB
B
23 DB7
22 DB6
21 DB5
20 DB4
DIGITAL
DATA
OUTPUTS
REFERENCE INPUT ₁₀
REF IN
19.95k
-12/-15V SUPPLY
VEE
11
BIPOLAR OFFSET
BIP OFF
12
10V SPAN INPUT
10VIN
13
20V SPAN INPUT ₁₄
20VIN
9.95k
5k
5k
IREF
DAC _N
AD574A ¹²
8k
VEE
UN
FI
FB
EB
RL
SE
C
LSB
19 DB3
18 DB2
17 DB1
16
DB0
LSB
15
DIGITAL COMMON
DC
AD574A Block Diagram and Pin Configuration
ABSOLUTE MAXIMUM RATINGS*
(Specifications apply to all grades, except where noted)
V_CC to Digital Common . . . . . . . . . . . . . . . . . . 0 V to +16.5 V
V_EE to Digital Common . . . . . . . . . . . . . . . . . . . 0 V to –16.5 V
V_LOGIC to Digital Common . . . . . . . . . . . . . . . . . . 0 V to +7 V
Analog Common to Digital Common . . . . . . . . . . . . . . . ± 1 V
Control Inputs (CE, CS, A_O 12/8, R/C) to
Digital Common . . . . . . . . . . . . . . –0.5 V to V_LOGIC + 0.5 V
Analog Inputs (REF IN, BIP OFF, 10 V_IN) to
Analog Common . . . . . . . . . . . . . . . . . . . . . . . . . V_EE to V_CC
20 V_IN to Analog Common . . . . . . . . . . . . . . . . . . . . . . ± 24 V
REF OUT . . . . . . . . . . . . . . . . . . Indefinite Short to Common
Momentary Short to V_CC
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.
ORDERING GUIDE
Model¹
Temperature
Range
Linearity Error
Max (T_MIN to T_MAX)
Resolution
No Missing Codes
(T_MIN to T_MAX)
Max
Full Scale
T.C. (ppm/°C)
AD574AJ(X)
0°C to +70°C
± 1 LSB
11 Bits
50.0
AD574AK(X) 0°C to +70°C
± 1/2 LSB
12 Bits
27.0
AD574AL(X) 0°C to +70°C
± 1/2 LSB
12 Bits
10.0
AD574AS(X)² –55°C to +125°C ± 1 LSB
11 Bits
50.0
AD574AT(X)² –55°C to +125°C ± 1 LSB
12 Bits
25.0
AD574AU(X)² –55°C to +125°C ± 1 LSB
12 Bits
12.5
NOTES
1_{X = 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.
2_{For details on grade and package offerings screened in accordance with MIL-STD-883, refer to Analog Devices Military Products}
Databook.
–4–
REV. B