REF-01/REF-02
1
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TYPICAL APPLICATION
DESCRIPTION
Precision
Voltage References
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
FEATURES
APPLICATIONS
15V
–15V
412Ω*
1/2W
357Ω*
1/2W
5V
350Ω
BRIDGE
ACTIVE
ELEMENT
R2
20k
R4
20k
R5
2M R6
2M**
R3
2M
–
+
–
+
GAIN = 100
A2
LT1001
A1†
LT307
IN OUT
GND
REF-02
REDUCES REFERENCE AND AMPLIFIER LOADING.
IF R6 = R3, BRIDGE IS NOT LOADED BY R2 AND R4.
A1 V
OS
AND DRIFT ARE NOT CRITICAL.
*
**
†
TA01a
–5V
n A/D and D/A Converters
n Precision Regulators
n Constant Current Sources
n V/F Converters
n Bridge Excitation
n Trimmed Output ±0.3%
n Low Drift—5ppm/°C Typ
n Low Noise—3ppm(P-P)
n High Line Rejection
n Temperature Output—REF-02
n Low Supply Current 1.4mA Max
The REF-01/REF-02 are precision 10V and 5V bandgap
references which provide stable output voltages over a
wide range of operating conditions. Output voltage is ac-
curate to ±0.3% with a low 5ppm/°C typical temperature
coeffi cient. The REF-01 and REF-02 are excellent choices
for applications where low drift, moderate accuracy, low
power consumption and low cost are considerations.
The REF-02 includes a temperature output pin which
provides a linear voltage proportional to absolute tem-
perature.
For lower drift and higher accuracy references, please see
the LT1019 and LT1021 data sheets.
Ultra Linear Strain Gauge Amplifi er Output Voltage Temperature Drift
TEMPERATURE (°C)
–50
OUTPUT VOLTAGE (NORMALIZED)
1.003
1.002
1.001
1.000
0.999
0.998
0.997 25 75
TA01b
–25 0 50 100 125
0°C TO 70°C BOX GUARANTEED FOR
REF-01E AND REF-02E (8.5ppm/°C)
FULL TEMP RANGE BOX GUARANTEED FOR
REF-01A AND REF-02A (8.5ppm/°C)
REF-01/REF-02
2
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ABSOLUTE MAXIMUM RATINGS
REF-01/REF-02 A, E, H .............................................40V
REF- 01C/ REF - 02C .....................................................30V
Power Dissipation .............................................. 500mW
Output Short-Circuit Duration
To Ground .................................................... Indefi nite
To VIN ≤ 16V ................................................ Indefi nite
To VIN > 16V ............................................Not Allowed
Storage Temperature Range ..................– 65°C to 150°C
Operating Temperature
REF-01/REF-02, REF-01A/REF-02A ... –55°C to 125°C
REF-01E/REF-02E, REF-01H/REF-02H,
REF-01C/REF-02C, REF-01D/REF-02D .... 0°C to 70°C
Lead Temperature (Soldering, 10 sec)...................300°C
PIN CONFIGURATION
ORDER INFORMATION
TJMAX = 150°C, θJA = 150°C/W, θJC = 45°C/W
TOP VIEW
NC*
NC*
NC*
INPUT OUTPUT
TRIM
TEMP**
GND (CASE)
8
7
6
5
3
2
1
4
H PACKAGE
8-LEAD TO-5 METAL CAN
*INTERNALLY CONNECTED. DO
NOT CONNECT EXTERNALLY.
A
+
–
+
–
B
**DO NOT CONNECT ON REF-01
1
2
3
4
8
7
6
5
TOP VIEW
NC*
INPUT
TEMP**
GND
NC*
NC*
OUTPUT
TRIM
N8 PACKAGE
8-LEAD PLASTIC DIP
TJMAX = 100°C, θJA = 130°C/W
TJMAX = 150°C, θJA = 100°C/W
*INTERNALLY CONNECTED. DO
NOT CONNECT EXTERNALLY.
J8 PACKAGE
8-LEAD CERDIP
**DO NOT CONNECT ON REF-01
LEAD FREE FINISH PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
REF01EN8#PBF REF01EN8 8-Lead Plastic Dip 0°C to 70°C
REF01HN8#PBF REF01HN8 8-Lead Plastic Dip 0°C to 70°C
REF01CN8#PBF REF01CN8 8-Lead Plastic Dip 0°C to 70°C
REF02EN8#PBF REF02EN8 8-Lead Plastic Dip 0°C to 70°C
REF02HN8#PBF REF02HN8 8-Lead Plastic Dip 0°C to 70°C
REF02CN8#PBF REF02CN8 8-Lead Plastic Dip 0°C to 70°C
REF02DN8#PBF REF02DN8 8-Lead Plastic Dip 0°C to 70°C
REF01AH#PBF 8-Lead TO-5 Metal Can –55°C to 125°C
REF01H#PBF 8-Lead TO-5 Metal Can –55°C to 125°C
REF01EH#PBF 8-Lead TO-5 Metal Can 0°C to 70°C
REF01HH#PBF 8-Lead TO-5 Metal Can 0°C to 70°C
REF01CH#PBF 8-Lead TO-5 Metal Can 0°C to 70°C
REF02H#PBF 8-Lead TO-5 Metal Can –55°C to 125°C
REF02EH#PBF 8-Lead TO-5 Metal Can 0°C to 70°C
REF02HH#PBF 8-Lead TO-5 Metal Can 0°C to 70°C
REF02CH#PBF 8-Lead TO-5 Metal Can 0°C to 70°C
REF-01/REF-02
3
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ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS
REF-01A/E, REF-02A/E REF-01H, REF-02H
UNITSMIN TYP MAX MIN TYP MAX
VOOutput Voltage IL = 0mA REF-01
REF-02
9.97
4.985
10
5
10.03
5.015
9.95
4.975
10
5
10.05
5.025
V
V
Output Adjustment Range RP = 10kΩ REF-01
REF-02
±3
±3
5, –27
5, –13
±3
±3
5, –27
5, –13
%
%
enP-P Output Voltage Noise 0.1Hz to 10Hz (Note 7) REF-01
REF-02
20
10
20
10
μVP-P
μVP-P
VIN Input Voltage Range REF-01
REF-02
12
7
40
40
12
7
40
40
V
V
ΔVOUT
ΔVIN
Line Regulation
(Note 2)
(VOUT + 3V) ≤ VIN ≤ 33V 0.0001 0.01 0.0001 0.01 %/V
ΔVOUT
ΔIOUT
Load Regulation
(Note 2)
IL = 0mA to 10mA REF-01
REF-02
0.0005
0.001
0.008
0.01
0.0005
0.001
0.01
0.01
%/mA
%/mA
IQQuiescent Supply Current No Load 0.65 1.4 0.65 1.4 mA
IOUT Load Current
Sink Current
10
–0.3
20
–20
10
–0.3
20
–20
mA
mA
ISC Short-Circuit Current VO = 0V 25 25 mA
VTTemperature Voltage Output (Note 3) REF-02 Only 620 620 mV
VIN = 15V, TA = 25°C unless otherwise noted.
ORDER INFORMATION
LEAD FREE FINISH PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
REF02DH#PBF 8-Lead TO-5 Metal Can 0°C to 70°C
REF01EJ8#PBF 8-Lead Cerdip 0°C to 70°C
REF01HJ8#PBF 8-Lead Cerdip 0°C to 70°C
REF01CJ8#PBF 8-Lead Cerdip 0°C to 70°C
REF02EJ8#PBF 8-Lead Cerdip 0°C to 70°C
REF02HJ8#PBF 8-Lead Cerdip 0°C to 70°C
REF02CJ8#PBF 8-Lead Cerdip 0°C to 70°C
REF02DJ8#PBF 8-Lead Cerdip 0°C to 70°C
OBSOLETE
Consider the N Package for Alternate Source
LEAD BASED FINISH PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
REF02AH REF02AH 8-Lead TO-5 Metal Can –55°C to 125°C
REF02AJ8 REF02AJ8 8-Lead Cerdip –55°C to 125°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
SYMBOL PARAMETER CONDITIONS
REF-01C, REF-02C REF-02D
UNITS
MIN TYP MAX MIN TYP MAX
VOOutput Voltage IL = 0mA REF-01
REF-02
9.9
4.95
10
5
10.1
5.05 4.9 5 5.1
V
V
Output Adjustment Range RP = 10kΩ REF-01
REF-02 ±2.7
5, –27
5, –13 ±2 5, –13
%
%
enP-P Output Voltage Noise 0.1Hz to 10Hz (Note 7) REF-01
REF-02
30
12 12
μVP-P
μVP-P
VIN = 15V, TA = 25°C unless otherwise noted.
REF-01/REF-02
4
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The l denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C.
VIN = 15V, –55°C ≤ TA ≤ ±125°C for REF-01A/REF-02A and REF-01/REF-02, 0°C ≤ TA ≤ 70°C for REF-01E/REF-02E and
REF-01H/REF-02H, IL = 0mA unless otherwise noted.
SYMBOL PARAMETER CONDITIONS
REF-01A/E, REF-02A/E REF-01H/ REF-02H
UNITSMIN TYP MAX MIN TYP MAX
ΔV
ΔT
Output Voltage Change With
Temperature (Notes 4, 5)
0°C ≤ TA ≤ 70°C
–55°C ≤ TA ≤ 125°C
l
l
0.02
0.09
0.06
0.15
0.035
0.144
0.17
0.45
%
%
TC Output Voltage Temperature
Coeffi cient
(Note 6) l58.5 8 25ppm/°C
Change in VO Temperature
Coeffi cient With Output
Adjustment
RP = 10kΩ l0.5 0.5 ppm/%
ΔVOUT
ΔVIN
Line Regulation
(VOUT + 3V) ≤ VIN ≤ 33V (Note 2)
0°C ≤ TA ≤ 70°C
–55°C ≤ TA ≤ 125°C
l
l
0.0001
0.0001
0.012
0.015
0.0001
0.0001
0.012
0.015
%/V
%/V
ΔVOUT
ΔIOUT
Load Regulation
(IL = 0mA to 8mA) (Note 2)
0°C ≤ TA ≤ 70°C
–55°C ≤ TA ≤ 125°C
l
l
0.002
0.002
0.01
0.012
0.002
0.002
0.012
0.015
%/mA
%/mA
Temperature Voltage Output
Temperature Coeffi cient
(Note 3) REF-02 l2.1 2.1 mV/°C
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS
REF-01C, REF-02C REF-02D
UNITSMIN TYP MAX MIN TYP MAX
ΔV
ΔT
Output Voltage Change With
Temperature
(Notes 4, 5) l0.45 1.7 %
TC Output Voltage Temperature
Coeffi cient
(Note 6) l865 8250ppm/°C
Change in VO Temperature
Coeffi cient With Output
Adjustment
RP = 10kΩ l0.5 0.5 ppm/%
ΔVOUT
ΔVIN
Line Regulation
(Note 2)
VIN = 8V to 30V l0.0001 0.018 0.0001 0.05 %/V
ΔVOUT
ΔIOUT
Load Regulation
(Note 2)
IL = 0mA to 5mA l0.002 0.018 0.002 0.05 %/mA
Temperature Voltage Output
Temperature Coeffi cient
(Note 3) REF-02 l2.1 2.1 mV/°C
SYMBOL PARAMETER CONDITIONS
REF-01C, REF-02C REF-02D
UNITS
MIN TYP MAX MIN TYP MAX
ΔVOUT
ΔVIN
Line Regulation
(Note 2)
(VOUT + 3V) ≤ VIN ≤ 33V 0.0001 0.015 0.0001 0.04 %/V
ΔVOUT
ΔIOUT
Load Regulation
(Note 2)
IL = 0mA to 8mA
IL = 0mA to 4mA
0.0005 0.015
0.001 0.04
%/mA
%/mA
IQQuiescent Supply Current No Load 0.65 1.6 0.65 2 mA
IOUT Load Current
Sink Current
8
–0.2
20
20
8
–0.2
20
20
mA
mA
ISC Short-Circuit Current VO = 0V 25 25 mA
VTTemperature Voltage Output (Note 3) REF-02 Only 620 620 mV
The l denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C.
VIN = 15V, 0°C ≤ TA ≤ 70°C and IL = 0mA unless otherwise noted.
VIN = 15V, TA = 25°C unless otherwise noted.
REF-01/REF-02
5
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Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Line and load regulation specifi cations include the effect of self
heating.
Note 3: Limit current in or out of Pin 3 to 50nA and capacitance on Pin 3
to 30pF.
Note 4: ΔV is defi ned as the absolute difference between the maximum
output voltage and the minimum output voltage over the specifi ed
temperature range expressed as a percentage of nominal output.
ΔVVMAX VMIN
VOUT
=–•100
Note 5: ΔV specifi cation applies trimmed or untrimmed.
Note 6: TC is defi ned as ΔV divided by the temperature range, i.e.,
TC V
TMAX TMIN
=Δ
–
Note 7: 0.1Hz to 10Hz noise cannot be 100% tested on modern high speed
test equipment, so Linear Technology does not put a guaranteed maximum
specifi cation on this parameter for standard units. 100% bench testing of
0.1Hz to 10Hz noise is available on special request. To ensure low output
noise, Linear Technology
does
100% test 10Hz to 1kHz noise. Consult
factory for details.
ELECTRICAL CHARACTERISTICS
PACKAGE DESCRIPTION
.050
(1.270)
MAX
.016 – .021**
(0.406 – 0.533)
.010 – .045*
(0.254 – 1.143)
SEATING
PLANE
.040
(1.016)
MAX .165 – .185
(4.191 – 4.699)
GAUGE
PLANE
REFERENCE
PLANE
.500 – .750
(12.700 – 19.050)
.305 – .335
(7.747 – 8.509)
.335 – .370
(8.509 – 9.398)
DIA
.230
(5.842)
TYP
.027 – .045
(0.686 – 1.143)
.028 – .034
(0.711 – 0.864)
.110 – .160
(2.794 – 4.064)
INSULATING
STANDOFF
45°
H8 (TO-5) 0.230 PCD 0204
LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE
AND THE SEATING PLANE
FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS .016 – .024
(0.406 – 0.610)
*
**
PIN 1
H Package
8-Lead TO-5 Metal Can (.230 Inch PCD)
(Reference LTC DWG # 05-08-1321)
REF-01/REF-02
6
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PACKAGE DESCRIPTION
J8 0801
.014 – .026
(0.360 – 0.660)
.200
(5.080)
MAX
.015 – .060
(0.381 – 1.524)
.125
3.175
MIN
.100
(2.54)
BSC
.300 BSC
(7.62 BSC)
.008 – .018
(0.203 – 0.457) 0° – 15°
.005
(0.127)
MIN
.405
(10.287)
MAX
.220 – .310
(5.588 – 7.874)
1234
8765
.025
(0.635)
RAD TYP
.045 – .068
(1.143 – 1.650)
FULL LEAD
OPTION
.023 – .045
(0.584 – 1.143)
HALF LEAD
OPTION
CORNER LEADS OPTION
(4 PLCS)
.045 – .065
(1.143 – 1.651)
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE
OR TIN PLATE LEADS
J8 Package
8-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
REF-01/REF-02
7
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Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represent a-
t i o n t h a t t h e i n t e r c o n n e c t i o n o f i t s c i r c u i t s a s d e s c r i b e d h e r e i n w i l l n o t i n f r i n g e o n e x i s t i n g p a t e n t r i g h t s .
PACKAGE DESCRIPTION
N8 1002
.065
(1.651)
TYP
.045 – .065
(1.143 – 1.651)
.130 ± .005
(3.302 ± 0.127)
.020
(0.508)
MIN
.018 ± .003
(0.457 ± 0.076)
.120
(3.048)
MIN
12 34
876
5
.255 ± .015*
(6.477 ± 0.381)
.400*
(10.160)
MAX
.008 – .015
(0.203 – 0.381)
.300 – .325
(7.620 – 8.255)
.325 +.035
–.015
+0.889
–0.381
8.255
()
NOTE:
1. DIMENSIONS ARE INCHES
MILLIMETERS
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
.100
(2.54)
BSC
N8 Package
8-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
REF-01/REF-02
8
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Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
© LINEAR TECHNOLOGY CORPORATION 1991
LT 0409 REV D • PRINTED IN USA
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT1019 0.05%, 5ppm/°C Precision Reference Pin Compatible With the REF-01, REF-02, Improved Specs
