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MICROCIRCUIT DATA SHEET
MNLM185-1.2-X REV 2A3
Original Creation Date: 08/15/95
Last Update Date: 12/12/02
Last Major Revision Date: 11/20/02
1.2V MICROPOWER VOLTAGE REFERENCE DIODE
General Description
The LM185-1.2 is a micropower 2-terminal band-gap voltage regulator diode. Operating over
a 10 uA to 20 mA current range, it features exceptionally low dynamic impedance and good
temperature stability. On-chip trimming is used to provide tight voltage tolerance.
Since the LM185-1.2 band-gap reference uses only transistors and resistors, low noise and
good long term stability result.
Careful design of the LM185-1.2 has made the device exceptionally tolerant of capacitive
loading, making it easy to use in almost any reference application. The wide dynamic
operating range allows its use with widely varying supplies with excellent regulation.
The extremely low power drain of the LM185-1.2 makes it useful for micropower circuitry.
This voltage reference can be used to make portable meters, regulators or general purpose
analog circuitry with battery life approaching shelf life. Further, the wide operating
current allows it to replace older references with a tighter tolerance part.
Industry Part Number
LM185
NS Part Numbers
LM185E-1.2/883
LM185H-1.2-SMD
LM185H-1.2/883
LM185WG-1.2-QV
LM185WG-1.2/883
Prime Die
LM185
Controlling Document
SEE FEATURES SECTION
Processing
MIL-STD-883, Method 5004
Subgrp Description
1
2
3
4
5
6
7
8A
8B
9
10
11
Static tests at
Static tests at
Static tests at
Dynamic tests at
Dynamic tests at
Dynamic tests at
Functional tests at
Functional tests at
Functional tests at
Switching tests at
Switching tests at
Switching tests at
Temp (
o
C)
+25
+125
-55
+25
+125
-55
+25
+125
-55
+25
+125
-55
Quality Conformance Inspection
MIL-STD-883, Method 5005
1
MNLM185-1.2-X REV 2A3
MICROCIRCUIT DATA SHEET
Features
- Operating current of 10 uA to 20 uA
- 1.0 Ohms max dynamic impedance (Typical)
- Low temperature coefficient
- Low voltage reference-1.235V
- CONTROLLING DOCUMENT:
LM185E-1.2/883
LM185H-1.2-SMD
LM185WG-1.2-QV
LM185WG-1.2/883
5962-87594012A
5962-8759401XA
5962-8759401VYA
5962-8759401YA
2
MICROCIRCUIT DATA SHEET
MNLM185-1.2-X REV 2A3
Original Creation Date: 08/15/95
Last Update Date: 12/12/02
Last Major Revision Date: 11/20/02
1.2V MICROPOWER VOLTAGE REFERENCE DIODE
General Description
The LM185-1.2 is a micropower 2-terminal band-gap voltage regulator diode. Operating over
a 10 uA to 20 mA current range, it features exceptionally low dynamic impedance and good
temperature stability. On-chip trimming is used to provide tight voltage tolerance.
Since the LM185-1.2 band-gap reference uses only transistors and resistors, low noise and
good long term stability result.
Careful design of the LM185-1.2 has made the device exceptionally tolerant of capacitive
loading, making it easy to use in almost any reference application. The wide dynamic
operating range allows its use with widely varying supplies with excellent regulation.
The extremely low power drain of the LM185-1.2 makes it useful for micropower circuitry.
This voltage reference can be used to make portable meters, regulators or general purpose
analog circuitry with battery life approaching shelf life. Further, the wide operating
current allows it to replace older references with a tighter tolerance part.
Industry Part Number
LM185
NS Part Numbers
LM185E-1.2/883
LM185H-1.2-SMD
LM185H-1.2/883
LM185WG-1.2-QV
LM185WG-1.2/883
Prime Die
LM185
Controlling Document
SEE FEATURES SECTION
Processing
MIL-STD-883, Method 5004
Subgrp Description
1
2
3
4
5
6
7
8A
8B
9
10
11
Static tests at
Static tests at
Static tests at
Dynamic tests at
Dynamic tests at
Dynamic tests at
Functional tests at
Functional tests at
Functional tests at
Switching tests at
Switching tests at
Switching tests at
Temp (
o
C)
+25
+125
-55
+25
+125
-55
+25
+125
-55
+25
+125
-55
Quality Conformance Inspection
MIL-STD-883, Method 5005
3
MNLM185-1.2-X REV 2A3
MICROCIRCUIT DATA SHEET
Features
- Operating current of 10 uA to 20 uA
- 1.0 Ohms max dynamic impedance (Typical)
- Low temperature coefficient
- Low voltage reference-1.235V
- CONTROLLING DOCUMENT:
LM185E-1.2/883
LM185H-1.2-SMD
LM185WG-1.2-QV
LM185WG-1.2/883
5962-87594012A
5962-8759401XA
5962-8759401VYA
5962-8759401YA
4
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