a
FEATURES
10 V Output, 0.3% Max
Adjustment Range, 3% Min
Excellent Temperature Stability, 8.5 ppm/ C Max
Low Noise, 30 V p-p Max
Low Supply Current, 1.4 mA Max
Wide Input Voltage Range, 12 V to 40 V
High Load Driving Capability, 20 mA
No External Components
Short Circuit Proof
GENERAL DESCRIPTION
TO-99 (J-Suffix)
NC
8
10 V Precision
Voltage Reference
REF01
PIN CONFIGURATION
Epoxy MINI-DIP (P-Suffix)
8-Lead Hermetic DIP (Z-Suffix)
8-Lead SO (S-Suffix)
NC
1
V
IN 2
NC
3
4
7
NC
6
V
OUT
NC
1
V
IN 2
8
NC
5
TRIM
7
NC
REF01
TOP VIEW
NC
3
(Not to Scale)
6
V
OUT
5
GROUND
(CASE)
NC = NO CONNECT*
GND
4
TRIM
NC = NO CONNECT*
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 D/A and A/D converters,
portable instrumentation, and digital voltmeters. Full military
temperature range devices with screening to MIL-STD-883
are available. For new designs, please refer to ADR01.
*NC
= No Connect. Do not connect anything on these pins as some
of them are reserved for factory testing purposes.
SIMPLIFIED SCHEMATIC
INPUT
R8
R7
R14
Q15
Q8
Q7
Q14
Q13
R15
2
Q9
Q12
Q11
C1
R6
R3
R4
Q10
Q6
Q5
R13
Q17
Q21
Q18
Q16
Q19
OUTPUT
6
R12
16.7k
50k
TRIM
5
Q4
R5
Q1
R1
R10
R2
Q2
Q20
Q3
1.23V
R9
R11
2k
GROUND
4
REV. C
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
© Analog Devices, Inc., 2002
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