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TMP37FS

Description
Analog Temperature Sensor, ANALOG TEMP SENSOR-VOLTAGE, 0.1-2V, 4Cel, RECTANGULAR, SURFACE MOUNT, MS-012-AA, SOIC-8
CategoryThe sensor   
File Size371KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
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TMP37FS Overview

Analog Temperature Sensor, ANALOG TEMP SENSOR-VOLTAGE, 0.1-2V, 4Cel, RECTANGULAR, SURFACE MOUNT, MS-012-AA, SOIC-8

TMP37FS Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerADI
package instructionSOP8,.25
Reach Compliance Codenot_compliant
ECCN codeEAR99
Maximum accuracy (Celsius)4 Cel
body width3.9 mm
body height1.55 mm
Body length or diameter4.9 mm
shellPLASTIC
JESD-609 codee0
Linearity (Cel)0.5 Cel
Installation featuresSURFACE MOUNT
Number of terminals8
Maximum working current0.05 mA
Maximum operating temperature150 °C
Minimum operating temperature-55 °C
Maximum output voltage2 V
Minimum output voltage0.1 V
Package body materialPLASTIC/EPOXY
Encapsulate equivalent codeSOP8,.25
Package Shape/FormRECTANGULAR
power supply3/5 V
Sensor/temperature sensor typeTEMPERATURE SENSOR,ANALOG,VOLTAGE OUTPUT
Maximum supply voltage5.5 V
Minimum supply voltage2.7 V
surface mountYES
technologyBIPOLAR
Temperature CoefficientPOSITIVE ppm/°C
Terminal surfaceTin/Lead (Sn85Pb15)
Termination typeSOLDER

TMP37FS Preview

a
FEATURES
Low Voltage Operation (+2.7 V to +5.5 V)
Calibrated Directly in C
10 mV/ C Scale Factor (20 mV/ C on TMP37)
2 C Accuracy Over Temperature (typ)
0.5 C Linearity (typ)
Stable with Large Capacitive Loads
Specified –40 C to +125 C, Operation to +150 C
Less than 50 A Quiescent Current
Shutdown Current 0.5 A max
Low Self-Heating
APPLICATIONS
Environmental Control Systems
Thermal Protection
Industrial Process Control
Fire Alarms
Power System Monitors
CPU Thermal Management
Low Voltage Temperature Sensors
TMP35/TMP36/TMP37
FUNCTIONAL BLOCK DIAGRAM
+Vs (2.7V to 5.5V)
TMP35
SHUTDOWN
TMP36
TMP37
V
OUT
PACKAGE TYPES AVAILABLE
RT-5 (SOT-23)
V
OUT
1
+V
S
2
NC 3
TOP VIEW
(Not to Scale)
4 SHUTDOWN
5 GND
PRODUCT DESCRIPTION
NC = NO CONNECT
The TMP35, TMP36 and TMP37 are low voltage, precision
centigrade temperature sensors. They provide a voltage output
that is linearly proportional to the Celsius (Centigrade) tem-
perature. The TMP35/TMP36/TMP37 do not require any
external calibration to provide typical accuracies of
±
1°C at
+25°C and
±
2°C over the –40°C to +125°C temperature range.
The low output impedance of the TMP35/TMP36/TMP37, and
its linear output and precise calibration simplify interfacing to
temperature control circuitry and A/D converters. All three devices
are intended for single-supply operation from 2.7 V to 5.5 V maxi-
mum. Supply current runs well below 50
µA
providing very low
self-heating—less than 0.1°C in still air. In addition, a shutdown
function is provided to cut supply current to less than 0.5
µA.
The TMP35 is functionally compatible with the LM35/LM45
and provides a 250 mV output at +25°C. The TMP35 reads
temperatures from +10°C to +125°C. The TMP36 is speci-
fied from –40°C to +125°C, provides a 750 mV output at
+25°C and operates to +125°C from a single 2.7 V supply. The
TMP36 is functionally compatible with the LM50. Both the
TMP35 and TMP36 have an output scale factor of +10 mV/°C.
The TMP37 is intended for applications over the range +5°C to
+100°C, and provides an output scale factor of 20 mV/°C. The
TMP37 provides a 500 mV output at +25°C. Operation extends
to +150°C with reduced accuracy for all devices when operating
from a 5 V supply.
The TMP35/TMP36/TMP37 are all available in low cost 3-pin
TO-92, and SO-8 and 5-pin SOT-23 surface mount packages.
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
SO-8
V
OUT
1
NC 2
8 +V
S
7 NC
TOP VIEW
NC 3 (Not to Scale) 6 NC
GND 4
5 SHUTDOWN
NC = NO CONNECT
TO-92
1
2
3
BOTTOM VIEW
(Not to Scale)
PIN 1 - +Vs, PIN 2 - V
OUT
, PIN 3 - GND
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
© Analog Devices, Inc., 1997
TMP35/TMP36/TMP37F/G–SPECIFICATIONS
Parameter
ACCURACY
TMP35/TMP36/TMP37F
TMP35/TMP36/TMP37G
TMP35/TMP36/TMP37F
TMP35/TMP36/TMP37G
Scale Factor, TMP35
Scale Factor, TMP36
Scale Factor, TMP37
Symbol
Conditions
T
A
= +25°C
T
A
= +25°C
Over Rated Temperature
Over Rated Temperature
+10°C
T
A
+125°C
–40°C
T
A
+125°C
+5°C
T
A
+85°C
+5°C
T
A
+100°C
3.0 V
+V
S
5.5 V
0
µA ≤
I
L
50
µA
T
A
= +25°C
3.0 V
+V
S
5.5 V
T
A
= +150°C for 1 kHrs
V
IH
V
IL
V
S
= 2.7 V
V
S
= 5.5 V
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
I
L
I
SC
C
L
1
(V
S
= +2.7 V to +5.5 V, –40 C
T
A
+125 C
unless otherwise noted)
Min
Typ
±
1
±
1
±
2
±
2
+10
+10
+20
+20
1
30
50
0.5
0.4
1.8
400
250
750
500
100
0
2000
50
250
10000
0.5
1
Max
±
2
±
3
±
3
±
4
+9.8/+10.2
+9.8/+10.2
+19.6/+20.4
+19.6/+20.4
20
100
Units
°C
°C
°C
°C
mV/°C
mV/°C
mV/°C
mV/°C
m°C/µA
m°C/V
m°C/V
°C
°C
V
mV
mV
mV
mV
mV
µA
µA
pF
ms
Load Regulation
Power Supply Rejection Ratio
Linearity
Long-Term Stability
SHUTDOWN
Logic High Input Voltage
Logic Low Input Voltage
OUTPUT
TMP35 Output Voltage
TMP36 Output Voltage
TMP37 Output Voltage
Output Voltage Range
Output Load Current
Short-Circuit Current
Capacitive Load Driving
Device Turn-On Time
POWER SUPPLY
Supply Range
Supply Current
Supply Current (Shutdown)
NOTES
1
Does not consider errors caused by self-heating.
2
Guaranteed but not tested.
Specifications subject to change without notice.
PSRR
PSRR
Note 2
No Oscillations
2
Output within
±
1°C
100 kΩ 100 pF Load
2
1000
+V
S
I
SY (ON)
I
SY (OFF)
2.7
Unloaded
Unloaded
0.01
5.5
50
0.5
V
µA
µA
–2–
REV. A
TMP35/TMP36/TMP37
WAFER TEST LIMITS
(V = +5 V, GND = O V, T = +25 C, unless otherwise noted)
S
A
Parameter
ACCURACY
Scale Factor Deviation
Power Supply Rejection Ratio
SHUTDOWN
Logic High Input Voltage
Logic Low Input Voltage
OUTPUT
TMP35 Output Voltage
TMP36 Output Voltage
TMP37 Output Voltage
Short-Circuit Current
Device Turn-On Time
POWER SUPPLY
Supply Range
Supply Current
Supply Current (Shutdown)
Symbol
Conditions
T
A
= +25°C
2.7 V
+V
S
5.5 V
V
S
= 2.7 V
V
S
= 5.5 V
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
V
S
= 5.5 V
Output within
±
1°C
100 kΩ 100 pF Load
1
Min
Typ
Max
±
2
Units
°C
m°C/V
V
mV
mV
mV
mV
µA
ms
PSRR
V
IH
V
IL
30
1.8
400
250
750
500
0.5
250
1
I
SC
V+
I
SY
(ON)
I
SY
(OFF)
2.7
Unloaded at +5 V
Unloaded at +5 V
5.5
50
0.5
V
µA
µA
NOTES
Electrical tests are performed at wafer probe to the limits shown. Due to variations in assembly methods and normal yield loss, yield after packaging is not guaranteed
for standard product dice. Consult factory to negotiate specifications based on dice lot qualification through sample lot assembly and testing.
1
Guaranteed but not tested.
DICE CHARACTERISTICS
Die Size 0.027
×
0.030 inch, 810 sq. mils
(0.685
×
0.762 mm, 0.522 sq. mm)
TRANSISTOR COUNT: 25
Substrate is connected to +V
S
1. V
OUT
1
4
2. GND
3.
SHUTDOWN
4. +V
S
2
3
For additional DICE ordering information, refer to databook.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the TMP35/TMP36/TMP37 features proprietary ESD protection circuitry, permanent
damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper
ESD precautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
REV. A
–3–
TMP35/TMP36/TMP37
ABSOLUTE MAXIMUM RATINGS*
FUNCTIONAL DESCRIPTION
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 V
Shutdown Pin . . . . . . . . . . . . . . GND
SHUTDOWN
+V
S
Output Pin . . . . . . . . . . . . . . . . . . . . . . GND V
OUT
+V
S
Operating Temperature Range . . . . . . . . . . –55°C to +150°C
Dice Junction Temperature . . . . . . . . . . . . . . . . . . . . . +175°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +160°C
Lead Temperature (Soldering, 60 sec) . . . . . . . . . . . . +300°C
*CAUTION
1. Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation at or above this specifica-
tion is not implied. Exposure to the above maximum rating
conditions for extended periods may affect device
reliability.
2. Digital inputs are protected; however, permanent damage may
occur on unprotected units from high-energy electrostatic fields.
Keep units in conductive foam or packaging at all times until
ready to use. Use proper antistatic handling procedures.
3. Remove power before inserting or removing units from their
sockets.
Package Type
TO-92 (T9 Suffix)
SO-8 (S Suffix)
SOT-23 (RT Suffix)
JA
JC
An equivalent circuit for the TMP3x family of micropower,
centigrade temperature sensors is shown in Figure 1. At the
heart of the temperature sensor is a bandgap core, which is
comprised of transistors Q1 and Q2, biased by Q3 to approxi-
mately 8
µA.
The bandgap core operates both Q1 and Q2 at the
same collector current level; however, since the emitter area of
Q1 is 10 times that of Q2, Q1’s V
BE
and Q2’s V
BE
are not equal
by the following relationship:
A
∆V
BE
=V
T
×
ln
E ,Q1
A
E ,Q2
+V
S
SHDN
25µA
3X
2X
Units
°C/W
°C/W
°C/W
+V
OUT
7.5µA
Q3
6X
2X
Q4
Q1
10X
R3
R2
Q2
1X
R1
162
158
300
120
43
180
θ
JA
is specified for device in socket (worst case conditions).
ORDERING GUIDE
Model
TMP35FT9
TMP35GT9
TMP35FS
TMP35GS
TMP35GRT
2
TMP36FT9
TMP36GT9
TMP36FS
TMP36GS
TMP36GRT
2
TMP37FT9
TMP37GT9
TMP37FS
TMP37GS
TMP37GRT
2
Accuracy
at 25 C
( C max)
±
2.0
±
3.0
±
2.0
±
3.0
±
3.0
±
2.0
±
3.0
±
2.0
±
3.0
±
3.0
±
2.0
±
3.0
±
2.0
±
3.0
±
3.0
Linear
Operating
Temperature Range
+10°C to +125°C
+10°C to +125°C
+10°C to +125°C
+10°C to +125°C
+10°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
+5°C to +100°C
+5°C to +100°C
+5°C to +100°C
+5°C to +100°C
+5°C to +100°C
Package
Options
1
TO-92
TO-92
SO-8
SO-8
RT-5
TO-92
TO-92
SO-8
SO-8
RT-5
TO-92
TO-92
SO-8
SO-8
RT-5
GND
Figure 1. Temperature Sensor Simplified Equivalent Circuit
Resistors R1 and R2 are used to scale this result to produce the
output voltage transfer characteristic of each temperature sensor
and, simultaneously, R2 and R3 are used to scale Q1’s V
BE
as
an offset term in V
OUT
. Table I summarizes the differences
between the three temperature sensors’ output characteristics:
Table I. TMP3x Output Characteristics
Sensor
TMP35
TMP36
TMP37
Offset
Voltage (V)
0
0.5
0
Output Voltage
Scaling (mV/ C)
10
10
20
Output Voltage
@ 25 C
250 mV
750 mV
500 mV
NOTES
1
SO = Small Outline; RT = Plastic Surface Mount; TO = Plastic.
2
Consult factory for availability.
The output voltage of the temperature sensor is available at the
emitter of Q4, which buffers the bandgap core and provides load
current drive. Q4’s current gain, working with the available base
current drive from the previous stage, sets the short-circuit
current limit of these devices to 250
µA.
–4–
REV. A
TMP35/TMP36/TMP37
2.0
a. TMP35
1.8
1.6
OUTPUT VOLTAGE – Volts
100
b. TMP36
c. TMP37
V
S
= 3V
b
c
31.6
10
3.16
1
0.32
0.1
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
50
a
POWER SUPPLY REJECTION – C/V
0.032
0.01
20
25
0
25
50
75
TEMPERATURE – C
100
125
100
1k
FREQUENCY – Hz
10k
100k
Figure 2. Output Voltage vs. Temperature
Figure 5. Power Supply Rejection vs. Frequency
5
4
3
ACCURACY ERROR – C
MINIMUM SUPPLY VOLTAGE – Volts
5
4
MINIMUM SUPPLY VOLTAGE REQUIRED TO MEET
DATA SHEET SPECIFICATION
NO LOAD
2
1
0
1
a
a. MAXIMUM LIMIT ( G GRADE )
b. TYPICAL ACCURACY ERROR
c. MINIMUM LIMIT ( G GRADE )
3
b
2
a
b
2
3
4
5
0
20
40
60
80
100
TEMPERATURE – C
120
140
c
1
a. TMP35/TMP36
b. TMP37
0
50
25
0
25
50
75
TEMPERATURE – C
100
125
Figure 3. Accuracy Error vs. Temperature
Figure 6. Minimum Supply Voltage vs. Temperature
0.4
V+ = +3V to +5.5V, NO LOAD
POWER SUPPLY REJECTION – C/V
60
a. V+ = 5V
b. V+ = 3V
50
SUPPLY CURRENT – µA
0.3
NO LOAD
40
a
30
0.2
0.1
20
b
0
50
25
0
25
50
75
TEMPERATURE – C
100
125
10
50
25
0
25
50
75
TEMPERATURE – C
100
125
Figure 4. Power Supply Rejection vs. Temperature
Figure 7. Supply Current vs. Temperature
REV. A
–5–

TMP37FS Related Products

TMP37FS TMP35GRT TMP37GRT TMP36FT9 TMP37FT9
Description Analog Temperature Sensor, ANALOG TEMP SENSOR-VOLTAGE, 0.1-2V, 4Cel, RECTANGULAR, SURFACE MOUNT, MS-012-AA, SOIC-8 Analog Temperature Sensor, ANALOG TEMP SENSOR-VOLTAGE, 0.1-2V, 3Cel, RECTANGULAR, SURFACE MOUNT, PLASTIC, MO-178AA, SOT-23, 5 PIN Analog Temperature Sensor, ANALOG TEMP SENSOR-VOLTAGE, 0.1-2V, 3Cel, RECTANGULAR, SURFACE MOUNT, PLASTIC, MO-178AA, SOT-23, 5 PIN Analog Temperature Sensor, ANALOG TEMP SENSOR-VOLTAGE, 0.1-2V, 2Cel, ROUND, SURFACE MOUNT, PLASTIC, TO-226AA, TO-92, 3 PIN Analog Temperature Sensor, ANALOG TEMP SENSOR-VOLTAGE, 0.1-2V, 3Cel, RECTANGULAR, THROUGH HOLE MOUNT, PLASTIC, TO-226AA, TO-92, 3 PIN
Is it Rohs certified? incompatible incompatible incompatible incompatible incompatible
Maker ADI ADI ADI ADI ADI
package instruction SOP8,.25 TSOP5/6,.11,37 TSOP5/6,.11,37 PLASTIC, TO-226AA, TO-92, 3 PIN PLASTIC, TO-226AA, TO-92, 3 PIN
Reach Compliance Code not_compliant unknown unknown unknown not_compliant
Maximum accuracy (Celsius) 4 Cel 3 Cel 3 Cel 2 Cel 3 Cel
body width 3.9 mm 1.6 mm 1.6 mm 3.68 mm 3.68 mm
body height 1.55 mm 1.45 mm 1.45 mm 4.82 mm 4.83 mm
Body length or diameter 4.9 mm 2.9 mm 2.9 mm 4.83 mm 4.83 mm
shell PLASTIC PLASTIC PLASTIC PLASTIC PLASTIC
JESD-609 code e0 e0 e0 e0 e0
Linearity (Cel) 0.5 Cel 0.5 Cel 0.5 Cel 0.5 Cel 0.5 Cel
Installation features SURFACE MOUNT SURFACE MOUNT SURFACE MOUNT SURFACE MOUNT THROUGH HOLE MOUNT
Number of terminals 8 5 5 3 3
Maximum working current 0.05 mA 0.05 mA 0.05 mA 0.05 mA 0.05 mA
Maximum operating temperature 150 °C 125 °C 100 °C 125 °C 125 °C
Minimum operating temperature -55 °C 10 °C 5 °C -40 °C -55 °C
Maximum output voltage 2 V 2 V 2 V 2 V 2 V
Minimum output voltage 0.1 V 0.1 V 0.1 V 0.1 V 0.1 V
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
Encapsulate equivalent code SOP8,.25 TSOP5/6,.11,37 TSOP5/6,.11,37 SIP3,.1,50 SIP3,.1,50
Package Shape/Form RECTANGULAR RECTANGULAR RECTANGULAR ROUND RECTANGULAR
power supply 3/5 V 3/5 V 3/5 V 3/5 V 3/5 V
Maximum supply voltage 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
Minimum supply voltage 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V
surface mount YES YES YES YES NO
technology BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR
Temperature Coefficient POSITIVE ppm/°C POSITIVE ppm/°C POSITIVE ppm/°C POSITIVE ppm/°C POSITIVE ppm/°C
Terminal surface Tin/Lead (Sn85Pb15) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Termination type SOLDER SOLDER SOLDER SOLDER SOLDER
ECCN code EAR99 EAR99 - EAR99 EAR99
Sensor/temperature sensor type TEMPERATURE SENSOR,ANALOG,VOLTAGE OUTPUT - TEMPERATURE SENSOR,ANALOG,VOLTAGE OUTPUT TEMPERATURE SENSOR,ANALOG,VOLTAGE OUTPUT TEMPERATURE SENSOR,ANALOG,VOLTAGE OUTPUT
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