REV. C
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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.
a
REF01
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 www.analog.com
Fax: 781/326-8703 © Analog Devices, Inc., 2002
10 V Precision
Voltage Reference
SIMPLIFIED SCHEMATIC
C1
R3
R6
R4
R5
R1
Q1
R2
R10
OUTPUT
GROUND
R12 16.7k
TRIM
Q19
R15
INPUT
Q15
Q18
Q16
Q13
Q21
Q17
R13
Q20
Q4
Q3
Q5
Q6
Q9
Q7
Q14
Q12
Q11
Q8
R8
R7
R14
Q10
Q2
R11 2k
R9 50k
4
5
6
1.23V
2
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
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.
Epoxy MINI-DIP (P-Suffix)
8-Lead Hermetic DIP (Z-Suffix)
8-Lead SO (S-Suffix)
8
7
6
5
1
2
3
4
NC = NO CONNECT*
NC
V
IN
NC
NC
NC
V
OUT
TRIMGND
TOP VIEW
(Not to Scale)
REF01
TO-99 (J-Suffix)
7
8
1
4
5
6
3
2
NC
V
OUT
TRIM
GROUND
(CASE)
NC
NC
V
IN
NC
NC = NO CONNECT*
PIN CONFIGURATION
*NC = No Connect. Do not connect anything on these pins as some
of them are reserved for factory testing purposes.
REV. C
–2–
REF01–SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
REF01A/E REF01/H
Parameter Symbol Conditions Min Typ Max Min Typ Max Unit
Output Voltage V
O
IL = 0 mA 9.97 10.00 10.03 9.95 10.00 10.05 V
Output Adjustment Range V
TRIM
R
P
= 10 kΩ±3.0 ±3.3 ±3.0 ±3.3 %
Output Voltage Noise
1
e
n p-p
0.1 Hz to 10 Hz 20 30 20 30 µV p-p
Line Regulation
2
VIN = 13 V to 33 V 0.006 0.010 0.006 0.010 %/V
Load Regulation
2
IL = 0 mA to 10 mA 0.005 0.008 0.006 0.010 %/mA
Turn-On Settling Time
3
t
ON
To ±0.1% of Final Value 5 5 µs
Quiescent Supply Current I
SY
No Load 1.0 1.4 1.0 1.4 mA
Load Current I
L
10 21 10 21 mA
Sink Current
4
I
S
–0.3 –0.5 –0.3 –0.5 mA
Short Circuit Current I
SC
VO = 0 30 30 mA
ELECTRICAL SPECIFICATIONS
REF01A/E REF01/H
Parameter Symbol Conditions Min Typ Max Min Typ Max Unit
Output Voltage Change V
OT
0°C TA 70°C0.02 0.06 0.07 0.17 %
with Temperature
5, 6
–55°C TA +125°C0.06 0.15 0.18 0.45 %
Output Voltage TCV
O
3.0 8.5 10.0 25.0
ppm/°C
Temperature Coefficient
7
Change in VO Temperature R
P
= 10 kΩ 0.7 0.7 ppm/%
Coefficient with Output
Adjustment
Line Regulation 0°C T
A
70°C 0.007 0.012 0.007 0.012
(V
IN
= 13 V to 33 V)
2
–55°C TA +125°C 0.009 0.015 0.009 0.015 %/V
Load Regulation 0°C T
A
70°C 0.006 0.010 0.007 0.012
(IL = 0 mA to 8 mA)
2
–55°C TA +125°C 0.007 0.012 0.009 0.015 %/mA
ELECTRICAL SPECIFICATIONS
REF01C
Parameter Symbol Conditions Min Typ Max Unit
Output Voltage V
O
IL = 0 mA 9.90 10.00 10.10 V
Output Adjustment Range V
TRIM
R
P
= 10 kΩ±2.7 ±3.3 %
Output Voltage Noise
1
e
n p-p
0.1 Hz to 10 Hz 25 35 µV p-p
Line Regulation
2
VIN = 13 V to 33 V 0.009 0.015 %/V
Load Regulation
2
IL = 0 mA to 8 mA 0.006 0.015 %/mA
Turn-On Settling Time
3
t
ON
To ±0.1% of Final Value 5 µs
Quiescent Supply Current I
SY
No Load 1.0 1.6 mA
Load Current I
L
821 mA
Sink Current
4
I
S
–0.3 –0.5 mA
Short Circuit Current I
SC
VO = 0 30 mA
(@ VIN = 15 V, TA = 25C, unless otherwise noted.)
(@ VIN = 15 V, –55C TA +125C for REF01A/E, and 0C TA 70C for REF01H and
IL = 0 mA, unless otherwise noted.)
(@ VIN = 15 V, TA = 25C, unless otherwise noted.)
REV. C
–3–
REF01
V
IN
GND
TRIM
V
O
REF01
15V
2
6
5
4
OUTPUT
10k⍀
Figure 1. Output Adjustment
V
IN
GND
REF01
+18V
–18V
Figure 2. Burn-In Circuit
The REF01 trim terminal can be used to adjust the output
voltage over a 10 V ±300 mV range. This feature allows the
system designer to trim system errors by setting the reference to
a voltage other than 10 V. Of course, the output can also be set
to exactly 10.000 V or to 10.240 V for binary applications.
Adjustment of the output does not significantly affect the temperature performance of the device. The temperature coefficient
change is approximately 0.7 ppm/°C for 100 mV of output
adjustment.
2
4
5
6
2. INPUT VOLTAGE (V
IN
)
4. GROUND
5. TRIM
6. OUTPUT VOLTAGE (V
OUT
)
DIE SIZE 0.074 ⴛ 0.048 INCH, 3552 SQUARE MILS
(1.88 ⴛ 1.22 mm, 2.29 SQUARE mm)
Figure 3. Dice Characteristics (125
ⴗ
C
Tested Dice Available)
(@ VIN = 15 V, 0ⴗC ⱕ TA ⱕ 70ⴗC for REF01CJ, REF01CZ, and
–40ⴗC ⱕ TA ⱕ +85ⴗC for REF01CP and REF01CS, unless otherwise noted.)
ELECTRICAL SPECIFICATIONS
REF01C
Parameter Symbol Conditions Min Typ Max Unit
Output Voltage Change ⌬V
OT
0.14 0.45 %
with Temperature
5, 6
Output Voltage TCV
O
20 65
ppm/°C
Temperature Coefficient
7
Change in VO Temperature
Coefficient with Output
Adjustment R
P
= 10 kΩ 0.7 ppm/%
Line Regulation
2
VIN = 13 V to 30 V 0.011 0.018 %/V
Load Regulation
2
IL = 0 to 5 mA 0.008 0.018 %/mA
TCV to C
Vto C
C
and
TCV to C
VtoC
C
O
OT
O
OT
070
070
70
55 125
55 125
180
oo
oo
o
oo
oo
o
+
()
=
+
()
−+
()
=
−+
()
∆
∆
NOTES
1
Sample tested.
2
Line and load regulation specifications include the effect of self-heating.
3
Guaranteed by design.
4
During sink current test the device meets the output voltage specified.
5
⌬VOT is defined as the absolute difference between the maximum output voltage and the minimum
output voltage over the specified temperature range expressed as a percentage of 10 V:
∆V
VV
V
OT
MAX MIN
=×
–
10
100
6
⌬VOT specification applies trimmed to +10,000 V or untrimmed.
7
TCVO is defined as ⌬Var divided by the temperature range, i.e.
Specifications are subject to change without notice.
REV. C
REF01
–4–
WAFER TEST LIMITS
REF01NT REF01N REF01GT REF01G
Parameter Symbol Conditions Limit Limit Limit Limit Unit
Output Voltage V
O
IL = 0 10.05 10.03 10.10 10.05 V max
9.95 9.97 9.90 9.95 V min
Output Adjustment
Range V
TRIM
R
P
= 10 kΩ±3.0 ±3.0 % min
Line Regulation VIN = 13 V to 33 V 0.015 0.01 0.015 0.01 %/V max
*Electrical tests are performed at wafer probe to the limits shown. Due to variations in assembly methods and normal yield loss, yield after packaging is not guaranteed
for standard product dice. Consult factory to negotiate specifications based on dice lot qualification through sample lot assembly and testing.
(@ VIN = 15 V, TA = 25C for REF01N and REF01G devices, TA = 125C for REF01NT and REF01GT devices,
unless otherwise noted.)*
TYPICAL ELECTRICAL CHARACTERISTICS
REF01NT REF01N REF01GT REF01G
Parameter Symbol Conditions Typical Typical Typical Typical Unit
Load Regulation I
L
= 0 mA to 10 mA
I
L
= 0 mA to 8 mA,
NT, GT @ 125°C 0.007 0.005 0.009 0.006 %/mA
Output Voltage
Noise e
n p-p
0.1 Hz to 10 Hz 20 20 20 20 µV p-p
Turn-On Settling To ±0.1% of Final
Time t
ON
Value NT, GT @
125°C 7.5 5.0 7.5 5.0 µs
Quiescent Current I
SY
No Load, NT,
GT @ 125°C 1.4 1.0 1.4 1.0 mA
Load Current I
L
21 21 21 21 mA
Sink Current I
S
–0.5 –0.5 –0.5 –0.5 mA
Short Circuit
Current I
SC
VO = 0 30 3030 30mA
Output Voltage
Temperature
Coefficient TCV
O
10 10 10 10 ppm/°C
*For 25°C specifications of REF01NT and REF01GT, see REF01N and REF01G, respectively.
(@ VIN = 15 V, TA = 25C, unless otherwise noted.)*