REF-01/REF-02

15V

412

1/2W

357

1/2W

350

BRIDGE

ACTIVE

ELEMENT

20k

2M**

GAIN = 100

LT1001

LT307

OUT

GND

REF-02

REDUCES REFERENCE AND AMPLIFIER LOADING.
IF R6 = R3, BRIDGE IS NOT LOADED BY R2 AND R4.
A1 V

AND DRIFT ARE NOT CRITICAL.

TA01a

APPLICATIO S

DESCRIPTIO

FEATURES

TYPICAL APPLICATIO

A/D and D/A Converters

Precision Regulators

Constant Current Sources

V/F Converters

Bridge Excitation

Trimmed Output

0.3%

Low Drift--5ppm/

C Typ

Low Noise--3ppm

(P-P)

High Line Rejection

Temperature Output--REF-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 (

OUTPUT VOLTAGE (NORMALIZED)

1.003

1.002

1.001

1.000

0.999

0.998

0.997

TA01b

100

125

C TO 70

C BOX GUARANTEED FOR

REF-01E AND REF-02E (8.5ppm/

FULL TEMP RANGE BOX GUARANTEED FOR

REF-01A AND REF-02A (8.5ppm/

REF-01/REF-02

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

16V ............................................... Indefinite

To V

> 16V ............................................ Not Allowed

ORDER PART

NUMBER

REF01AH
REF01H
REF01EH
REF01HH
REF01CH

ABSOLUTE AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

ELECTRICAL CHARACTERISTICS

= 15V, T

= 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

Output Voltage

= 0mA

REF-01

9.97

10.03

9.95

10.05

REF-02

4.985

5.015

4.975

5.025

Output Adjustment Range

= 10k

REF-01

5, 27

REF-02

5, 13

nP-P

Output Voltage Noise

0.1Hz to 10Hz (Note 7) REF-01

P-P

REF-02

P-P

Input Voltage Range

REF-01

REF-02

OUT

Line Regulation

OUT

+ 3V)

33V

0.0001

0.010

0.0001

0.010

%/V

(Note 2)

OUT

Load Regulation

= 0mA to 10mA

REF-01

0.0005

0.008

0.0005

0.010

%/mA

OUT

(Note 2)

REF-02

0.0010

0.010

0.001

0.010

%/mA

Quiescent Supply Current

No Load

0.65

1.4

0.65

1.4

OUT

Load Current

Sink Current

0.3

Short-Circuit Current

= 0V

Temperature Voltage Output

(Note 3)

REF-02 Only

620

Consult LTC Marketing for parts specified with wider operating temperature ranges.

Storage Temperature Range ................. 65

C to 150

Operating Temperature

REF-01/REF-02, REF-01A/REF-02A ...55

C to 125

REF-01E/REF-02E, REF-01H/REF-02H,
REF-01C/REF-02C, REF-01D/REF-02D .... 0

C to 70

Lead Temperature (Soldering, 10 sec).................. 300

ORDER PART

NUMBER

REF02AH
REF02H
REF02EH
REF02HH
REF02CH
REF02DH

TOP VIEW

NC*

INPUT

OUTPUT

TRIM

TEMP**

GND (CASE)

H PACKAGE

8-LEAD TO-5 METAL CAN

*INTERNALLY CONNECTED. DO

NOT CONNECT EXTERNALLY.

**DO NOT CONNECT ON REF-01

JMAX

= 150

C/W,

= 45

C/W

TOP VIEW

NC*

INPUT

TEMP**

GND

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

JMAX

= 100

= 130

C/W

JMAX

= 150

= 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

ELECTRICAL CHARACTERISTICS

= 15V, T

= 25

C unless otherwise noted.

REF-01C, REF-02C

REF-02D

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

Output Voltage

= 0mA

REF-01

9.9

10.1

REF-02

4.95

5.05

4.9

5.1

Output Adjustment Range

= 10k

REF-01

5, 27

REF-02

2.7

5, 13

nP-P

Output Voltage Noise

0.1Hz to 10Hz (Note 7) REF-01

P-P

REF-02

P-P

OUT

Line Regulation

OUT

+ 3V)

33V

0.0001

0.015

0.0001

0.04

%/V

(Note 2)

OUT

Load Regulation

= 0mA to 8mA

0.0005

0.015

%/mA

OUT

(Note 2)

= 0mA to 4mA

0.001

0.04

%/mA

Quiescent Supply Current

No Load

0.65

1.6

0.65

OUT

Load Current

Sink Current

0.2

Short-Circuit Current

= 0V

Temperature Voltage Output

(Note 3)

REF-02 Only

620

The

denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T

= 25

= 15V, 55

125

C for REF-01A/REF-02A and REF-01/REF-02, 0

C for REF-01E/REF-02E and

REF-01H/REF-02H, I

= 0mA unless otherwise noted.

REF-01A/E, REF-02A/E

REF-01H/REF-02H

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

Output Voltage Change with

0.02

0.06

0.035

0.17

Temperature (Notes 4, 5)

125

0.09

0.15

0.144

0.45

Output Voltage Temperature

(Note 6)

8.5

ppm/

Coefficient

Change in V

Temperature

= 10k

0.5

ppm/%

Coefficient with Output
Adjustment

OUT

Line Regulation

0.0001

0.012

0.0001

0.012

%/V

OUT

+ 3V)

33V (Note 2)

125

0.0001

0.015

0.0001

0.015

%/V

OUT

Load Regulation

0.002

0.010

0.002

0.012

%/mA

OUT

= 0mA to 8mA) (Note 2)

125

0.002

0.012

0.002

0.015

%/mA

Temperature Voltage Output

(Note 3) REF-02

2.1

mV/

Temperature Coefficient

REF-01/REF-02

ELECTRICAL CHARACTERISTICS

The

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at T

= 25

C. V

= 15V, 0

C and I

= 0mA unless otherwise noted.

REF-01C, REF-02C

REF-02D

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

Output Voltage Change with

(Notes 4, 5)

0.45

1.7

Temperature

Output Voltage Temperature

(Note 6)

250

ppm/

Coefficient

Change in V

Temperature

= 10k

0.5

ppm/%

Coefficient with Output
Adjustment

OUT

Line Regulation

= 8V to 30V

0.0001

0.018

0.0001

0.05

%/V

(Note 2)

OUT

Load Regulation

= 0mA to 5mA

0.002

0.018

0.002

0.05

%/mA

OUT

(Note 2)

Temperature Voltage Output

(Note 3) REF-02

2.1

mV/

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.

VMAX VMIN

VOUT

ˇ100

Note 5:

V specification applies trimmed or untrimmed.

Note 6: TC is defined as

V divided by the temperature range, i.e.,

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

PACKAGE DESCRIPTIO

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

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

OBSOLETE PACKAGE

J8 Package

8-Lead CERDIP (Narrow .300 Inch, Hermetic)

(Reference LTC DWG # 05-08-1110)

PACKAGE DESCRIPTIO

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)

0.005

(0.127)

MIN

0.405

(10.287)

MAX

0.220 0.310

(5.588 7.874)

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

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

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

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.

Part Number REF-01