May 2004
LM20EP
Enhanced Plastic 2.4V, 10µA, SC70, micro SMD
Temperature Sensor
General Description
Features
n Rated for full −55˚C to +130˚C range
The LM20EP is a precision analog output CMOS integrated-
circuit temperature sensor that operates over a −55˚C to
+130˚C temperature range. The power supply operating
range is +2.4 V to +5.5 V. The transfer function of LM20EP is
predominately linear, yet has a slight predictable parabolic
curvature. The accuracy of the LM20EP when specified to a
parabolic transfer function is 1.5˚C at an ambient tempera-
ture of +30˚C. The temperature error increases linearly and
reaches a maximum of 2.5˚C at the temperature range
extremes. The temperature range is affected by the power
supply voltage. At a power supply voltage of 2.7 V to 5.5 V
the temperature range extremes are +130˚C and −55˚C.
Decreasing the power supply voltage to 2.4 V changes the
negative extreme to −30˚C, while the positive remains at
+130˚C.
n Available in an SC70 and a micro SMD package
n Predictable curvature error
n Suitable for remote applications
Key Specifications
j
j
j
j
j
j
j
Accuracy at +30˚C
Accuracy at +130˚C & −55˚C
Power Supply Voltage Range
Current Drain
1.5 to 4 ˚C (max)
2.5 to 5 ˚C (max)
+2.4V to +5.5V
10 µA (max)
Nonlinearity
0.4 % (typ)
Output Impedance
Load Regulation
160 Ω (max)
The LM20EP’s quiescent current is less than 10 µA. There-
fore, self-heating is less than 0.02˚C in still air. Shutdown
capability for the LM20EP is intrinsic because its inherent
low power consumption allows it to be powered directly from
the output of many logic gates or does not necessitate
shutdown at all.
<
<
0 µA IL +16 µA
−2.5 mV (max)
Applications
n Battery Management
n Selected Military Applications
n Selected Avionics Applications
ENHANCED PLASTIC
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Extended Temperature Performance of −55˚C to +130˚C
Baseline Control - Single Fab & Assembly Site
Process Change Notification (PCN)
Qualification & Reliability Data
Solder (PbSn) Lead Finish is standard
Enhanced Diminishing Manufacturing Sources (DMS)
Support
Ordering Information
PART NUMBER
LM20CIM7EP
(Notes 1, 2)
VID PART NUMBER
V62/04728-01
TBD
NS PACKAGE NUMBER (Note 3)
MAA05A
TBD
Note 1: For the following (Enhanced Plastic) version, check for availability: LM20SIBPEP, LM20SIBPXEP, LM20BIM7EP, LM20BIM7XEP,
LM20CIM7XEP, LM20SITLEP, LM20SITLXEP. Parts listed with an "X" are provided in Tape & Reel and parts without an "X" are in Rails.
Note 2: FOR ADDITIONAL ORDERING AND PRODUCT INFORMATION, PLEASE VISIT THE ENHANCED PLASTIC WEB SITE AT: www.national.com/
mil
Note 3: Refer to package details under Physical Dimensions
© 2004 National Semiconductor Corporation
DS200999
www.national.com