(TMIN to TMAX with VCC = +15 V ꢂ 10% or +12 V ꢂ 5%,
VLOGIC = +5 V ꢂ 10%, VEE = –15 V ꢂ 10% or –12 V ꢂ 5%, unless otherwise noted.)
AD674B/AD774B–SPECIFICATIONS
J Grade
K Grade
A Grade
B Grade
T Grade
Model (AD674B or AD774B)
Min Typ Max Min Typ Max Min Typ Max Min Typ Max Min Typ Max
Unit
RESOLUTION
12
12
12
12
12
Bits
LINEARITY ERROR @ 25°C
TMIN to TMAX
ꢂ1
ꢂ1
ꢂ1/2
ꢂ1/2
ꢂ1
ꢂ1
ꢂ1/2
ꢂ1/2
ꢂ1/2
ꢂ1
LSB
LSB
DIFFERENTIAL LINEARITY ERROR
(Minimum Resolution for Which No
Missing Codes are Guaranteed)
12
12
12
12
12
Bits
LSB
LSB
UNIPOLAR OFFSET1 @ 25°C
BIPOLAR OFFSET1 @ 25°C
ꢂ2
ꢂ6
ꢂ2
ꢂ3
ꢂ2
ꢂ6
ꢂ2
ꢂ3
ꢂ2
ꢂ3
FULL-SCALE CALIBRATION ERROR1, 2
@ 25°C (with Fixed 50 Ω Resistor
from REF OUT to REF IN)
0.1 0.25
0.1 0.125
0.1 0.25
0.1 0.125
0.1 0.125
% of FS
TEMPERATURE RANGE
0
70
0
70
–40
+85
–40
+85
–55
+125
°C
TEMPERATURE DRIFT3
(Using Internal Reference)
Unipolar
ꢂ2
ꢂ2
ꢂ6
ꢂ1
ꢂ1
ꢂ2
ꢂ2
ꢂ2
ꢂ8
ꢂ1
ꢂ1
ꢂ5
ꢂ1
ꢂ2
ꢂ7
LSB
LSB
LSB
Bipolar Offset
Full-Scale Calibration
POWER SUPPLY REJECTION
Max Change in Full-Scale Calibration
V
CC = +15 V 1.5 V or +12 V 0.6 V
ꢂ2
ꢂ1/2
ꢂ2
ꢂ1
ꢂ1/2
ꢂ1
ꢂ2
ꢂ1/2
ꢂ2
ꢂ1
ꢂ1/2
ꢂ1
ꢂ1
ꢂ1/2
ꢂ1
LSB
LSB
LSB
VLOGIC = +5 V 0.5 V
VEE = –15 V 1.5 V or –12 V 0.6 V
ANALOG INPUT
Input Ranges
Bipolar
–5
–10
0
+5
+10 –10
10
20
–5
+5
+10
10
–5
–10
0
+5
+10
10
–5
–10
0
+5
+10
10
–5
–10
0
+5
+10
10
V
V
V
V
Unipolar
0
0
0
20
0
20
0
20
0
20
Input Impedance
10 V Span
20 V Span
3
6
5
10
7
14
3
6
5
7
3
6
5
7
3
6
5
7
3
6
5
7
kΩ
kΩ
10 14
10 14
10 14
10 14
POWER SUPPLIES
Operating Range
VLOGIC
VCC
VEE
4.5
11.4
–16.5
5.5
16.5 11.4
–11.4 –16.5
4.5
5.5
4.5
5.5
16.5
–11.4 –16.5
4.5
11.4
5.5
16.5
–11.4 –16.5
4.5
11.4
5.5
16.5
–11.4
V
V
V
16.5 11.4
–11.4 –16.5
Operating Current
ILOGIC
ICC
IEE
3.5
3.5
10
7
7
14
3.5
3.5
10 14
7
7
3.5
3.5
10 14
7
7
3.5
3.5
10
7
7
14
3.5
3.5
10 14
7
7
mA
mA
mA
POWER CONSUMPTION
220 375
175
220 375
175
220 375
175
220 375
175
220 375
175
mW4
mW5
INTERNAL REFERENCE VOLTAGE
Output Current
(Available for External Loads)
(External Load Should Not
Change During the Conversion)
9.9 10.0 10.1 9.9 10.0 10.1
2.0 2.0
9.9 10.0 10.1
9.9
10.0 10.1
9.9
10.0 10.1
V
2.0
2.0
2.0
mA
NOTES
1Adjustable to zero.
2Includes internal voltage reference error.
3Maximum change from 25°C value to the value at TMIN or TMAX
.
4Tested with REF OUT tied to REF IN through 50 Ω resistor, VCC = +16.5 V, VEE = –16.5 V, VLOGIC = +5.5 V, and outputs in high-Z mode.
5Tested with REF OUT tied to REF IN through 50 Ω resistor, VCC = +12 V, VEE = –12 V, VLOGIC = +5 V, and outputs in high-Z mode.
Specifications subject to change without notice.
Specifications shown in boldface are tested on all devices at final electrical test at TMIN, 25°C, and TMAX. Results from those tests are used to calculate outgoing quality levels. All min and
max specifications are guaranteed, although only those shown in boldface are tested.
–2–
REV. C
ROCHESTER [ Rochester Electronics ]
