REF-01/REF-02
1
15V
–15V
412*
1/2W
357*
1/2W
5V
350
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
APPLICATIO S
U
DESCRIPTIO
U
FEATURES
TYPICAL APPLICATIO
U
A/D and D/A Converters
Precision Regulators
Constant Current Sources
V/F Converters
Bridge Excitation
Trimmed Output ±0.3%
Low Drift5ppm/°C Typ
Low Noise3ppm
(P-P)
High Line Rejection
Temperature OutputREF-02
Low Supply Current 1.4mA Max
Precision
Voltage References
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
accurate to ±0.3% with a low 5ppm/°C typical temperature
coefficient. 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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Ultra Linear Strain Gauge Amplifier 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
REF-01/REF-02 A, E, H ............................................ 40V
REF-01C/REF-02C ................................................... 30V
Power Dissipation.............................................. 500mW
Output Short-Circuit Duration
To Ground ................................................... Indefinite
To V
IN
16V ............................................... Indefinite
To V
IN
> 16V............................................Not Allowed
ORDER PART
NUMBER
REF01AH
REF01H
REF01EH
REF01HH
REF01CH
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
(Note 1)
ELECTRICAL CHARACTERISTICS
VIN = 15V, TA = 25°C unless otherwise noted.
REF-01A/E, REF-02A/E REF-01H, REF-02H
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
O
Output Voltage I
L
= 0mA REF-01 9.97 10 10.03 9.95 10 10.05 V
REF-02 4.985 5 5.015 4.975 5 5.025 V
Output Adjustment Range R
P
= 10kREF-01 ±3 5, –27 ±3 5, –27 %
REF-02 ±3 5, –13 ±3 5, –13 %
e
nP-P
Output Voltage Noise 0.1Hz to 10Hz (Note 7) REF-01 20 20 µV
P-P
REF-02 10 10 µV
P-P
V
IN
Input Voltage Range REF-01 12 40 12 40 V
REF-02 7 40 7 40 V
V
OUT
Line Regulation (V
OUT
+ 3V) V
IN
33V 0.0001 0.010 0.0001 0.010 %/V
V
IN
(Note 2)
V
OUT
Load Regulation I
L
= 0mA to 10mA REF-01 0.0005 0.008 0.0005 0.010 %/mA
I
OUT
(Note 2) REF-02 0.0010 0.010 0.001 0.010 %/mA
I
Q
Quiescent Supply Current No Load 0.65 1.4 0.65 1.4 mA
I
OUT
Load Current 10 20 10 20 mA
Sink Current 0.3 20 0.3 20 mA
I
SC
Short-Circuit Current V
O
= 0V 25 25 mA
V
T
Temperature Voltage Output (Note 3) REF-02 Only 620 620 mV
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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
ORDER PART
NUMBER
REF02AH
REF02H
REF02EH
REF02HH
REF02CH
REF02DH
TOP VIEW
NC*
NC*
NC*
INPUT OUTPUT
TRIM
TEMP**
GND (CASE)
87
6
5
3
2
1
4
H PACKAGE
8-LEAD TO-5 METAL CAN
*INTERNALLY CONNECTED. DO
NOT CONNECT EXTERNALLY.
**DO NOT CONNECT ON REF-01
T
JMAX
= 150°C, θ
JA
= 150°C/W, θ
JC
= 45°C/W
1
2
3
4
8
7
6
5
TOP VIEW
NC*
INPUT
TEMP**
GND
NC*
NC*
OUTPUT
TRIM
N8 PACKAGE
8-LEAD PDIP
J8 PACKAGE
8-LEAD CERDIP
*INTERNALLY CONNECTED. DO
NOT CONNECT EXTERNALLY.
**DO NOT CONNECT ON REF-01
T
JMAX
= 100°C, θ
JA
= 130°C/W
T
JMAX
= 150°C, θ
JA
= 100°C/W
REF01EN8
REF01HN8
REF01CN8
REF01EJ8
REF01HJ8
REF01CJ8
REF02EN8
REF02HN8
REF02CN8
REF02DN8
REF02EJ8
REF02HJ8
REF02CJ8
REF02DJ8
OBSOLETE PACKAGE
Consider the N Package for Alternate Source OBSOLETE PACKAGE
Consider the N Package for Alternate Source
REF-01/REF-02
3
ELECTRICAL CHARACTERISTICS
VIN = 15V, TA = 25°C unless otherwise noted.
REF-01C, REF-02C REF-02D
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
O
Output Voltage I
L
= 0mA REF-01 9.9 10 10.1 V
REF-02 4.95 5 5.05 4.9 5 5.1 V
Output Adjustment Range R
P
= 10kREF-01 5, –27 %
REF-02 ±2.7 5, –13 ±2 5, –13 %
e
nP-P
Output Voltage Noise 0.1Hz to 10Hz (Note 7) REF-01 30 µV
P-P
REF-02 12 12 µV
P-P
V
OUT
Line Regulation (V
OUT
+ 3V) V
IN
33V 0.0001 0.015 0.0001 0.04 %/V
V
IN
(Note 2)
V
OUT
Load Regulation I
L
= 0mA to 8mA 0.0005 0.015 %/mA
I
OUT
(Note 2) I
L
= 0mA to 4mA 0.001 0.04 %/mA
I
Q
Quiescent Supply Current No Load 0.65 1.6 0.65 2 mA
I
OUT
Load Current 8 20 8 20 mA
Sink Current 0.2 20 0.2 20 mA
I
SC
Short-Circuit Current V
O
= 0V 25 25 mA
V
T
Temperature Voltage Output (Note 3) REF-02 Only 620 620 mV
The denotes the specifications which apply over the full operating temperature range, otherwise specifications 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.
REF-01A/E, REF-02A/E REF-01H/REF-02H
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V Output Voltage Change with 0°C␣ T
A
70°Cl0.02 0.06 0.035 0.17 %
T Temperature (Notes 4, 5) –55°C T
A
125°Cl0.09 0.15 0.144 0.45 %
TC Output Voltage Temperature (Note 6) l5 8.5 8 25 ppm/°C
Coefficient
Change in V
O
Temperature R
P
= 10kl0.5 0.5 ppm/%
Coefficient with Output
Adjustment
V
OUT
Line Regulation 0°C T
A
70°Cl0.0001 0.012 0.0001 0.012 %/V
V
IN
(V
OUT
+ 3V) V
IN
33V (Note 2) –55°C T
A
125°Cl0.0001 0.015 0.0001 0.015 %/V
V
OUT
Load Regulation 0°C T
A
70°Cl0.002 0.010 0.002 0.012 %/mA
I
OUT
(I
L
= 0mA to 8mA) (Note 2) –55°C T
A
125°Cl0.002 0.012 0.002 0.015 %/mA
Temperature Voltage Output (Note 3) REF-02 l2.1 2.1 mV/°C
Temperature Coefficient
REF-01/REF-02
4
ELECTRICAL CHARACTERISTICS
The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 15V, 0°C TA 70°C and IL = 0mA unless otherwise noted.
REF-01C, REF-02C REF-02D
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V Output Voltage Change with (Notes 4, 5) l0.45 1.7 %
T Temperature
TC Output Voltage Temperature (Note 6) l8 65 8 250 ppm/°C
Coefficient
Change in V
O
Temperature R
P
= 10kl0.5 0.5 ppm/%
Coefficient with Output
Adjustment
V
OUT
Line Regulation V
IN
= 8V to 30V l0.0001 0.018 0.0001 0.05 %/V
V
IN
(Note 2)
V
OUT
Load Regulation I
L
= 0mA to 5mA l0.002 0.018 0.002 0.05 %/mA
I
OUT
(Note 2)
Temperature Voltage Output (Note 3) REF-02 l2.1 2.1 mV/°C
Temperature Coefficient
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Line and load regulation specifications 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: V 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 nominal output.
VVMAX VMIN
VOUT
=100
Note 5: V specification applies trimmed or untrimmed.
Note 6: TC is defined as V divided by the temperature range, i.e.,
TC V
TMAX TMIN
=
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 specification 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.
REF-01/REF-02
5
PACKAGE DESCRIPTIO
U
0.050
(1.270)
MAX
0.016 – 0.021**
(0.406 – 0.533)
0.010 – 0.045*
(0.254 – 1.143)
SEATING
PLANE
0.040
(1.016)
MAX 0.165 – 0.185
(4.191 – 4.699)
GAUGE
PLANE
REFERENCE
PLANE
0.500 – 0.750
(12.700 – 19.050)
0.305 – 0.335
(7.747 – 8.509)
0.335 – 0.370
(8.509 – 9.398)
DIA
0.230
(5.842)
TYP
0.027 – 0.045
(0.686 – 1.143)
0.028 – 0.034
(0.711 – 0.864)
0.110 – 0.160
(2.794 – 4.064)
INSULATING
STANDOFF
45°TYP
H8 (TO-5) 0.230 PCD 1197
LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE
AND 0.045" BELOW THE REFERENCE PLANE
FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS 0.016 – 0.024
(0.406 – 0.610)
*
**
PIN 1
H Package
8-Lead TO-5 Metal Can (.230 Inch PCD)
(Reference LTC DWG # 05-08-1321)
OBSOLETE PACKAGE
REF-01/REF-02
6
OBSOLETE PACKAGE
J8 Package
8-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
PACKAGE DESCRIPTIO
U
J8 1298
0.014 – 0.026
(0.360 – 0.660)
0.200
(5.080)
MAX
0.015 – 0.060
(0.381 – 1.524)
0.125
3.175
MIN
0.100
(2.54)
BSC
0.300 BSC
(0.762 BSC)
0.008 – 0.018
(0.203 – 0.457) 0° – 15°
0.005
(0.127)
MIN
0.405
(10.287)
MAX
0.220 – 0.310
(5.588 – 7.874)
1234
8765
0.025
(0.635)
RAD TYP
0.045 – 0.068
(1.143 – 1.727)
FULL LEAD
OPTION
0.023 – 0.045
(0.584 – 1.143)
HALF LEAD
OPTION
CORNER LEADS OPTION
(4 PLCS)
0.045 – 0.065
(1.143 – 1.651)
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE
OR TIN PLATE LEADS
REF-01/REF-02
7
N8 1098
0.100
(2.54)
BSC
0.065
(1.651)
TYP
0.045 – 0.065
(1.143 – 1.651)
0.130 ± 0.005
(3.302 ± 0.127)
0.020
(0.508)
MIN
0.018 ± 0.003
(0.457 ± 0.076)
0.125
(3.175)
MIN
12 34
8765
0.255 ± 0.015*
(6.477 ± 0.381)
0.400*
(10.160)
MAX
0.009 – 0.015
(0.229 – 0.381)
0.300 – 0.325
(7.620 – 8.255)
0.325 +0.035
0.015
+0.889
0.381
8.255
()
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
N8 Package
8-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
PACKAGE DESCRIPTIO
U
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 represen-
tation that the interconnection of circuits as described herein will not infringe on existing patent rights.
REF-01/REF-02
8
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
FAX: (408) 434-0507
www.linear.com
LINEAR TECHNOLOGY CORPORATIO N 1991
ref012fc LT/CP 0901 1.5K REV C • 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