Precision 2.5 V, 5.0 V, and 10.0 V

Voltage References

REF01/REF02/REF03

Rev. K

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FEATURES

High output accuracy

REF01: 10.0 V, ±0.3% maximum

REF02: 5.0 V, ±0.3% maximum

REF03: 2.5 V, ±0.6% maximum

Adjustable output: ± 3% minimum

Excellent temperature stability

REF01: 8.5 ppm/°C maximum

REF02: 8.5 ppm/°C maximum

REF03: 50 ppm/°C maximum

Low noise

REF01: 30 μV p-p typical

REF02: 15 μV p-p typical

REF03: 6 μV p-p typical

High supply voltage range: up to 36 V maximum

Low supply current: 1.4 mA maximum

High load-driving capability: 10 mA maximum

Temperature output function

APPLICATIONS

Precision data systems

High resolution converters

Industrial process control systems

Precision instruments

Military and aerospace applications

GENERAL DESCRIPTION

The REF0x series of precision voltage references provide a

stable 10.0 V, 5.0 V, or 2.5 V output with minimal change in

response to variations in supply voltage, ambient temperature

or load conditions. The parts are available in 8-lead SOIC,

PDIP, CERDIP, and TO-99 packages, as well as 20-terminal

LCC packages (883 only), furthering the parts’ usability in

both standard and high stress applications.

With an external buffer and a simple resistor network, the

TEMP terminal can be used for temperature sensing and

approximation. A TRIM terminal is also provided on the

device for fine adjustment of the output voltage.

The small footprint, wide supply range, and application

versatility make the REF0x series of references ideal for general-

purpose and space-constrained applications.

Newer designs should use the ADR0x series of references,

which offer higher accuracy and temperature stability over a

wider operating temperature range, while maintaining full pin-

for-pin compatibility with the REF0x series. This data sheet

applies to commercial-grade products only. Contact sales or

visit analog.com for military-grade (883) data sheets.

Table 1. Selection Guide

Part Number

Output Voltage

Input Voltage Range

REF01

10.0 V

12 V to 36 V

REF02

5.0 V

7.0 V to 36 V

REF03

2.5 V

4.5 V to 36 V

PIN CONFIGURATIONS

REF01/

REF02/

REF03

TOP VIEW

(Not to Scale)

NC

1

NC

NC

TRIM

8

7

6

5

NC = NO CONNECT. DO NOT CONNECT ANYTHING

ON THESE PINS. SOME OF THEM ARE RESERVED

FOR FACTORY TESTING PURPOSES.

Figure 1. 8-Lead PDIP (P-Suffix),

8-Lead CERDIP (Z-Suffix),

8-Lead SOIC (S-Suffix)

1

2

3

4

5

6

7

8

NC

GROUND

(CASE)

NC

NC

NC

TRIM

NC = NO CONNECT. DO NOT CONNECT ANYTHING

ON THESE PINS. SOME OF THEM ARE RESERVED

FOR FACTORY TESTING PURPOSES.

REF01/

REF02/

REF03

Figure 2. 8-Lead TO-99 (J-Suffix)

4

NC

5

6

NC

7

TEMP

8

NC

18

NC

17

NC

16

NC

15

14

NC

19

20

1

2

3

13

12

11

10

9

REF01/

REF02

TOP VIEW

(Not to Scale)

NC = NO CONNECT. DO NOT CONNECT ANYTHING

ON THESE PINS. SOME OF THEM ARE RESERVED

FOR FACTORY TESTING PURPOSES.

Figure 3. 20-Terminal LCC (RC-Suffix;

883 Parts Only)