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Solid State Temperature Sensor
Linear 1 Microamp per Kelvin Output
AD590JH
U Linear Current Output
U Broad Range -55 to 150°C
U No Linearization
Circuity Required
U Versatile and Economical
U Fast Response
Two Styles Available
U Low-Cost Metal
TO-52 Case
U Miniature Ceramic
Flat Pack
Two Accuracies Available
U J for Low Cost
U K for Increased Accuracy
Applications
U Ideal for Fast Response
Surface Measurements
U Sensors for Controllers
and Meters
U Use in Custom-Made
Probes
U Use on PC Boards for
Accurate Measurement
The AD590 is a small temperature
transducer that converts a
temperature input into a proportional
current output.
The advanced technology in the
AD590 is especially suited for
special temperature measurement
and control applications between
-55 and 150°C (-67 to 302°F)
when solid state reliability, linearity
and accuracy are required. The
AD590 can be used to determine
minimum, average, and differential
temperatures, in addition to being
used for thermocouple cold junction
compensation and temperature
control applications. The size and
responsiveness of the AD590 make
it perfect for uses where size is
a consideration, such as on PC
boards or heat sinks.
Just power up and measure
absolute temperature (Kelvin).
No linearization, amplification
or cold junction compensation is
required (Fig. 1). To convert reading
to °C, subtract 273.15.
AD590 Applications
AD581
+15V
35.7 k
27 k
2 k5 k
97.6 k
R
1
+
–
30 pF
–
+
AD301AL
AD590
V–
R
2
100 mV/
°C
V = 100 mV/°C
1
+5V
+
AD590
–
+
R
100
V = 1 mV/
960
Fig. 1 Basic Operation Circuit Fig. 2 Simple Amplified Circuit
°K
T
––
Specifications
Absolute Maximum Ratings
Forward Voltage (E+ to E-): +44V
Reverse Voltage (E+ to E-): -20V
Breakdown Voltage
Compatible Product
CIO-DAS-TEMP 32-Channel
Plug-In Board for IBM PCs
(case to E+ or E-): ±200V
Lead Temperature: 300°C
Voltage Range: 4 to 30 Vdc
Nominal Current Output at 25°C
(298.2 K): 298.2 µA
Nominal Temperature Coefficient:
1 µA/K
Calibration Error: J: ±5.0°C
maximum (K: ±2.5°C)
Absolute Error: Without external
Calibration Adjustment:
J: ±10.0°C max (K: ±5.5°C);
W/25°C error set to zero J: ±3.0°C
max (K: ±2.0°C)
Repeatability: ±0.1°C max
Visit us online for further details.
Long-Term Drift: ±0.1°C/month max
To Order
Model Number Flat Pack TO-52 Case Linearity
AD590J AD590JF AD590JH ±1.5°C
AD590K AD590KF AD590KH ±0.8°C
D
D-18
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