LM285/285B-1.2V
LM285/285B-2.5V
LM385/385B-1.2V
LM385/385B-2.5V
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LOW POWER, BANDGAP VOLTAGE REFERENCES
FEATURES
GENERAL DESCRIPTION
■ Output Tolerance ....................................... 1% or 2%
■ Output Voltage Option
LM285/385-1.2V ........................................1.235V
LM285/385-2.5V ............................................2.5V
■ Wide Operating Current Range
The LM285/385-1.2V (1.235V output) and LM285/385-
2.5V (2.5V output) are bipolar, two-terminal, bandgap volt-
age references that offer precision performance without
premium price. These devices do not require thin-film re-
sistors, greatly lowering manufacturing complexity and cost.
A 30ppm/°C output temperature coefficient and a 15µA
to 20mA operating current range make these voltage refer-
ences especially attractive for multimeter, data acquisition
and telecommunications applications.
LM285/385-1.2V ........................... 15µA to 20mA
LM285/385-2.5V ........................... 20µA to 20mA
■ Temperature Coefficient .......................... 30ppm/°C
■ Dynamic Impedance .......................................... 0.6Ω
■ TO-92-3 Plastic Package
■ 8-Pin Plastic Narrow Body (SOIC) Package
PIN CONFIGURATIONS
SURFACE MOUNT
8-PIN PLASTIC SOIC
TO-92-3 PLASTIC
(BOTTOM VIEW)
APPLICATIONS
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8
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5
CATHODE
NC
NC
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■ ADC and DAC Reference
■ Current Source Generation
■ Threshold Detectors
■ Power Supplies
NC
NC
NC
ANODE
NC
■ Multi-meters
LM285/285B E0A-1.2
LM285/285B EOA-2.5
LM385/385B COA-1.2
LM385/385B COA-2.5
LM285/285B EZB-1.2
LM285/285B EZB-2.5
LM385/385B CZB-1.2
LM385/385B CZB-2.5
NC = NO INTERNAL CONNECTION
ORDERING INFORMATION
Temperature
Part No.
Package
Range
Voltage
Tolerance
LM285BEOA-1.2
LM285BEOA-2.5
LM285BEZB-1.2
LM285BEZB-2.5
LM285EOA-1.2
LM285EOA-2.5
LM285EZB-1.2
LM285EZB-2.5
LM385BCOA-1.2
LM385BCOA-2.5
LM385BCZB-1.2
LM385BCZB-2.5
LM385COA-1.2
LM385COA-2.5
LM385CZB-1.2
LM385CZB-2.5
8-Pin SOIC
8-Pin SOIC
TO-92-3
– 40°C to +85°C
– 40°C to +85°C
– 40°C to +85°C
– 40°C to +85°C
– 40°C to +85°C
– 40°C to +85°C
– 40°C to +85°C
– 40°C to +85°C
0°C to +70°C
1.2
2.5
1.2
2.5
1.2
2.5
1.2
2.5
1.2
2.5
1.2
2.5
1.2
2.5
1.2
2.5
1%
1.5%
1%
1.5%
2%
3%
2%
3%
1%
1.5%
1%
1.5%
2%
3%
2%
TO-92-3
8-Pin SOIC
8-Pin SOIC
TO-92-3
TO-92-3
8-Pin SOIC
8-Pin SOIC
TO-92-3
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
TO-92-3
8-Pin SOIC
8-Pin SOIC
TO-92-3
TO-92-3
3%
LM285/B/385/B-9 11/6/96
TELCOM SEMICONDUCTOR, INC.
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