AD596/AD597SPECIFICATIONS
(@ +60C and V
S
= 10 V, Type J (AD596), Type K (AD597) Thermocouple,
unless otherwise noted)
REV. B
2
Model
AD596AH
AD597AH
AD597AR
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Units
ABSOLUTE MAXIMUM RATINGS
+V
S
to V
S
36
36
36
Volts
Common-Mode Input Voltage
(V
S
0.15)
+V
S
(V
S
0.15)
+V
S
(V
S
0.15)
+V
S
Volts
Differential Input Voltage
V
S
+V
S
V
S
+V
S
V
S
+V
S
Volts
Alarm Voltages
+ALM
V
S
(V
S
+36)   V
S
(V
S
+36)
V
S
(V
S
+36)   Volts
ALM
V
S
+V
S
V
S
+V
S
V
S
+V
S
Volts
Operating Temperature Range
55
+125
55
+125
40
+125
癈
Output Short Circuit to Common
Indefinite
Indefinite
Indefinite
TEMPERATURE MEASUREMENT
(Specified Temperature Range
+25癈 to +100癈)
Calibration Error
1
4
+4
4
+4
4
+4
癈
Stability vs. Temperature
2
?.02   ?.05
?.02   ?.05
?.02   ?.05
癈/癈
Gain Error
1.5
+1.5
1.5
+1.5
1.5
+1.5
%
Nominal Transfer Function
10
10
10
mV/癈
AMPLIFIER CHARACTERISTICS
Closed Loop Gain
3
180.6
245.5
245.5
V/V
Input Offset Voltage
癈 ?53.21 + 235
癈 ?41.27 37
癈 ?41.27 37
礦
Input Bias Current
0.1
0.1
0.1
礎(chǔ)
Differential Input Range
10
+50
10
+50
10
+50
mV
Common-Mode Range
(V
S
0.15)
(+V
S
4)   (+V
S
0.15)
(+V
S
4)
(V
S
0.15)
(+V
S
4)   Volts
Common-Mode SensitivityRTO
10
10
10
mV/V
Power Supply SensitivityRTO
1
10
1
10
1
10
mV/V
Output Voltage Range
Dual Supplies
(V
S
+ 2.5)
(+V
S
2)   (V
S
+ 2.5)
(+V
S
2)
(V
S
+ 2.5)
(+V
S
2)   Volts
Single Supply
0
(+V
S
2)   0
(+V
S
2)
0
(+V
S
2)   Volts
Usable Output Current
4
?
?
?
mA
3 dB Bandwidth
15
15
15
kHz
ALARM CHARACTERISTICS
5
Alarm Function Not Pinned Out
V
CE(SAT)
at 2 mA
0.3
0.3
Volts
Leakage Current
1
1
礎(chǔ)
Operating Voltage at ALM
(+V
S
4)
(+V
S
4)
Volts
Short Circuit Current
20
20
mA
POWER REQUIREMENTS
Operating
(+V
S
to V
S
) d 30
(+V
S
to V
S
) d 30
(+V
S
to V
S
) d 30
Volts
Quiescent Current
+V
S
160
300
160
300
160
300
礎(chǔ)
V
S
100
200
100
200
100
200
礎(chǔ)
NOTES
1
This is a measure of the deviation from ideal with a measuring thermocouple junction of 175癈 and a chip temperature of 60癈. The ideal transfer function is given by:
AD596: V
OUT
= 180.57 ?(V
m
V
a
+ (ambient in 癈) ?53.21 礦/癈 + 235 礦)
AD597: V
OUT
= 245.46 ?(V
m
V
a
+ (ambient in 癈) ?41.27 礦/癈 37 礦)
where V
m
, and V
a
represent the measuring and ambient temperatures and are taken from the appropriate J or K thermocouple table. The ideal transfer function minimizes the
error over the ambient temperature range of 25癈 to 100癈 with a thermocouple temperature of approximately 175癈.
2
Defined as the slope of the line connecting the AD596/AD597 CJC errors measured at 25癈 and 100癈 ambient temperature.
3
Pin 6 shorted to Pin 7.
4
Current Sink Capability in single supply configuration is limited to current drawn to ground through a 50 k& resistor at output voltages below 2.5 V.
5
Alarm function available on H package option only.
Specifications subject to change without notice.
Specifications shown in boldface are tested on all production units at final electrical test. 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 on all production units.
ORDERING GUIDE
Model
Package Description
Package Options
AD596AH
H-10A
AD597AH
TO-100
H-10A
AD597AR*
Plastic SOIC
SO-8
*Consult factory for availability.