10 V Precision
Voltage Reference
REF01
FEATURES
PIN CONFIGURATIONS
10 V output, 0.3ꢀ maximum
NC
8
Adjustment range, 3ꢀ minimum
Excellent temperature stability, 8.5 ppm/°C maximum
Low noise, 30 µV p-p maximum
Low supply current, 1.4 mA maximum
Wide input voltage range, 12 V to 40 V
High load driving capability, 10 mA
No external components
NC
NC
1
3
7
5
V
2
6
V
OUT
IN
NC
TRIM
4
GROUND
(CASE)
NC = NO CONNECT. DO NOT CONNECT ANYTHING
ON THESE PINS. SOME OF THEM ARE RESERVED
FOR FACTORY TESTING PURPOSES.
Short-circuit proof
Figure 1. TO-99 (J Suffix)
GENERAL DESCRIPTION
The REF01 precision voltage reference provides a stable 10 V
output that can be adjusted over a 3% range with minimal effect
on temperature stability. Single-supply operation over an input
voltage range of 12 V to 40 V, a low current drain of 1 mA, and
excellent temperature stability are achieved with an improved
band gap design. Low cost, low noise, and low power make the
REF01 an excellent choice whenever a stable voltage reference is
required. Applications include DACs and ADCs, portable
instrumentation, and digital voltmeters. Full military
NC
1
2
3
4
8
7
6
5
NC
NC
REF01
V
IN
TOP VIEW
NC
V
OUT
(Not to Scale)
GND
TRIM
NC = NO CONNECT. DO NOT CONNECT ANYTHING
ON THESE PINS. SOME OF THEM ARE RESERVED
FOR FACTORY TESTING PURPOSES.
Figure 2. 8-Lead PDIP (P-Suffix)
8-Lead CERDIP (Z-Suffix)
8-Lead SOIC (S-Suffix)
temperature range devices with screening to MIL-STD-883 are
available. For new designs, refer to ADR01.
INPUT
OUTPUT RESISTORS
R8
2
R7
R14
REF01 OPTION
R9
R11
R12
P AND S PACKAGES 18kΩ 4.5kΩ 33.3kΩ
Q15
J AND Z PACKAGES, 50kΩ 2kΩ
16.7kΩ
R15
Q19
Q14
Q13
Q8
Q7
Q9
AND 883C PRODUCT
Q18
Q12
Q11
Q16
Q21
C1
Q17
Q10
R6
Q5
Q6
OUTPUT
6
R13
R3
R4
R12*
R9*
Q4
Q3
TRIM
R5
≈1.23V
Q20
R10
Q2
5
4
Q1
R1
R11*
R2
GROUND
*SEE OUTPUT RESISTORS
Figure 3. Simplified Schematic
Rev. H
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