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
s
A/D and D/A Converters
s
Precision Regulators
s
Constant Current Sources
s
V/F Converters
s
Bridge Excitation
s
Trimmed Output
0.3%
s
Low Drift--5ppm/
C Typ
s
Low Noise--3ppm
(P-P)
s
High Line Rejection
s
Temperature Output--REF-02
s
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
W
W
U
PACKAGE/ORDER I FOR ATIO
U
U
W
(Note 1)
ELECTRICAL CHARACTERISTICS
V
IN
= 15V, T
A
= 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
= 10k
REF-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
V
P-P
REF-02
10
10
V
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)
8
7
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,
JA
= 150
C/W,
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,
JA
= 130
C/W
T
JMAX
= 150
C,
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
V
IN
= 15V, T
A
= 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
= 10k
REF-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
V
P-P
REF-02
12
12
V
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
q
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25
C.
V
IN
= 15V, 55
C
T
A
125
C for REF-01A/REF-02A and REF-01/REF-02, 0
C
T
A
70
C for REF-01E/REF-02E and
REF-01H/REF-02H, I
L
= 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
C
0.02
0.06
0.035
0.17
%
T
Temperature (Notes 4, 5)
55
C
T
A
125
C
0.09
0.15
0.144
0.45
%
TC
Output Voltage Temperature
(Note 6)
5
8.5
8
25
ppm/
C
Coefficient
Change in V
O
Temperature
R
P
= 10k
0.5
0.5
ppm/%
Coefficient with Output
Adjustment
V
OUT
Line Regulation
0
C
T
A
70
C
0.0001
0.012
0.0001
0.012
%/V
V
IN
(V
OUT
+ 3V)
V
IN
33V (Note 2)
55
C
T
A
125
C
0.0001
0.015
0.0001
0.015
%/V
V
OUT
Load Regulation
0
C
T
A
70
C
0.002
0.010
0.002
0.012
%/mA
I
OUT
(I
L
= 0mA to 8mA) (Note 2)
55
C
T
A
125
C
0.002
0.012
0.002
0.015
%/mA
Temperature Voltage Output
(Note 3) REF-02
2.1
2.1
mV/
C
Temperature Coefficient
REF-01/REF-02
4
ELECTRICAL CHARACTERISTICS
The
q
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
C. V
IN
= 15V, 0
C
T
A
70
C and I
L
= 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)
0.45
1.7
%
T
Temperature
TC
Output Voltage Temperature
(Note 6)
8
65
8
250
ppm/
C
Coefficient
Change in V
O
Temperature
R
P
= 10k
0.5
0.5
ppm/%
Coefficient with Output
Adjustment
V
OUT
Line Regulation
V
IN
= 8V to 30V
0.0001
0.018
0.0001
0.05
%/V
V
IN
(Note 2)
V
OUT
Load Regulation
I
L
= 0mA to 5mA
0.002
0.018
0.002
0.05
%/mA
I
OUT
(Note 2)
Temperature Voltage Output
(Note 3) REF-02
2.1
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.
V
VMAX 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)
1
2
3
4
8
7
6
5
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
1
2
3
4
8
7
6
5
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
q
FAX: (408) 434-0507
q
www.linear.com
LINEAR TECHNOLOGY CORPORATION 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
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