LM285/285B-1.2V
LM285/285B-2.5V
LM385/385B-1.2V
LM385/385B-2.5V
LOW POWER, BANDGAP VOLTAGE REFERENCES
FEATURES
s
s
Output Tolerance ....................................... 1% or 2%
Output Voltage Option
LM285/385-1.2V ........................................ 1.235V
LM285/385-2.5V ............................................ 2.5V
Wide Operating Current Range
LM285/385-1.2V ........................... 15
碌
A to 20mA
LM285/385-2.5V ........................... 20
碌
A to 20mA
Temperature Coefficient .......................... 30ppm/
擄
C
Dynamic Impedance .......................................... 0.6
鈩?/div>
TO-92-3 Plastic Package
8-Pin Plastic Narrow Body (SOIC) Package
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GENERAL DESCRIPTION
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/擄C output temperature coefficient and a 15碌A(chǔ)
to 20mA operating current range make these voltage refer-
ences especially attractive for multimeter, data acquisition
and telecommunications applications.
PIN CONFIGURATIONS
TO-92-3 PLASTIC
(BOTTOM VIEW)
SURFACE MOUNT
8-PIN PLASTIC SOIC
NC
NC
NC
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3
8
7
6
5
CATHODE
NC
NC
NC
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3
4
5
6
7
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s
s
s
s
APPLICATIONS
s
s
s
s
s
ADC and DAC Reference
Current Source Generation
Threshold Detectors
Power Supplies
Multi-meters
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2
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ANODE 4
LM285/285B EZB-1.2
LM285/285B EZB-2.5
LM385/385B CZB-1.2
LM385/385B CZB-2.5
LM285/285B E0A-1.2
LM285/285B EOA-2.5
LM385/385B COA-1.2
LM385/385B COA-2.5
NC = NO INTERNAL CONNECTION
ORDERING INFORMATION
Part No.
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
Package
8-Pin SOIC
8-Pin SOIC
TO-92-3
TO-92-3
8-Pin SOIC
8-Pin SOIC
TO-92-3
TO-92-3
8-Pin SOIC
8-Pin SOIC
TO-92-3
TO-92-3
8-Pin SOIC
8-Pin SOIC
TO-92-3
TO-92-3
Temperature
Range
鈥?40擄C to +85擄C
鈥?40擄C to +85擄C
鈥?40擄C to +85擄C
鈥?40擄C to +85擄C
鈥?40擄C to +85擄C
鈥?40擄C to +85擄C
鈥?40擄C to +85擄C
鈥?40擄C to +85擄C
0擄C to +70擄C
0擄C to +70擄C
0擄C to +70擄C
0擄C to +70擄C
0擄C to +70擄C
0擄C to +70擄C
0擄C to +70擄C
0擄C to +70擄C
Voltage
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
Tolerance
1%
1.5%
1%
1.5%
2%
3%
2%
3%
1%
1.5%
1%
1.5%
2%
3%
2%
3%
LM285/B/385/B-9 11/6/96
8
3-9
TELCOM SEMICONDUCTOR, INC.
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