REF02CJ8

REF-01 LINER

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–15V 412Ω* 1/2W 357Ω* 1/2W 350Ω BRIDGE ACTIVE ELEMENT 20k 20k 2M R6 2M** GAIN = 100A2 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 SU DESCRIPTIO UFEATURES TYPICAL APPLICATIO U ■ 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 (°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)

Output Short-Circuit Duration ORDER PART NUMBER REF01AH REF01H REF01EH REF01HH REF01CH ABSOLUTE AXI U RATI GSW WW U PACKAGE/ORDER I FOR ATIOUU W (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 VO 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 = 10kΩ REF-01 ±3 5, –27 ±3 5, –27 % enP-P Output Voltage Noise 0.1Hz to 10Hz (Note 7) REF-01 20 20 µVP-P REF-02 10 10 µVP-P VIN Input Voltage Range REF-01 12 40 12 40 V REF-02 7 40 7 40 V ∆VOUT Line Regulation (V OUT + 3V) ≤ VIN ≤ 33V 0.0001 0.010 0.0001 0.010 %/V ∆VIN (Note 2) ∆VOUT Load Regulation I L = 0mA to 10mA REF-01 0.0005 0.008 0.0005 0.010 %/mA ∆IOUT (Note 2) REF-02 0.0010 0.010 0.001 0.010 %/mA IQ Quiescent Supply Current No Load 0.65 1.4 0.65 1.4 mA IOUT Load Current 10 20 10 20 mA Sink Current –0.3 –20 –0.3 –20 mA ISC Short-Circuit Current V O = 0V 25 25 mA VT Temperature Voltage Output (Note 3) REF-02 Only 620 620 mV Consult LTC Marketing for parts specified with wider operating temperature ranges. 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 ORDER PART NUMBER REF02AH REF02H REF02EH REF02HH REF02CH REF02DH TOP VIEW NC* NC* NC* INPUT OUTPUT TRIMTEMP** GND (CASE) H PACKAGE 8-LEAD TO-5 METAL CAN *INTERNALLY CONNECTED. DO NOT CONNECT EXTERNALLY. **DO NOT CONNECT ON REF-01 TJMAX = 150°C, θJA = 150°C/W, θJC = 45°C/W 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 TJMAX = 100°C, θJA = 130°C/W TJMAX = 150°C, θJA = 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

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 VO 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 = 10kΩ REF-01 5, –27 % enP-P Output Voltage Noise 0.1Hz to 10Hz (Note 7) REF-01 30 µVP-P REF-02 12 12 µVP-P ∆VOUT Line Regulation (V OUT + 3V) ≤ VIN ≤ 33V 0.0001 0.015 0.0001 0.04 %/V ∆VIN (Note 2) ∆VOUT Load Regulation I L = 0mA to 8mA 0.0005 0.015 %/mA ∆IOUT (Note 2) I L = 0mA to 4mA 0.001 0.04 %/mA IQ Quiescent Supply Current No Load 0.65 1.6 0.65 2 mA IOUT Load Current 8 20 8 20 mA Sink Current –0.2 20 –0.2 20 mA ISC Short-Circuit Current V O = 0V 25 25 mA VT 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 ≤ TA ≤ 70°C ● 0.02 0.06 0.035 0.17 % ∆T Temperature (Notes 4, 5) –55 °C ≤ TA ≤ 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 VO Temperature R P = 10kΩ ● 0.5 0.5 ppm/% Coefficient with Output Adjustment ∆VOUT Line Regulation 0 °C ≤ TA ≤ 70°C ● 0.0001 0.012 0.0001 0.012 %/V ∆VIN (VOUT + 3V) ≤ VIN ≤ 33V (Note 2) –55 °C ≤ TA ≤ 125°C ● 0.0001 0.015 0.0001 0.015 %/V ∆VOUT Load Regulation 0 °C ≤ TA ≤ 70°C ● 0.002 0.010 0.002 0.012 %/mA ∆IOUT (IL = 0mA to 8mA) (Note 2) –55 °C ≤ TA ≤ 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

ELECTRICAL CHARACTERISTICSThe ● 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) ● 0.45 1.7 % ∆T Temperature TC Output Voltage Temperature (Note 6) ● 8 65 8 250 ppm/ °C Coefficient Change in VO Temperature R P = 10kΩ ● 0.5 0.5 ppm/% Coefficient with Output Adjustment ∆VOUT Line Regulation V IN = 8V to 30V ● 0.0001 0.018 0.0001 0.05 %/V ∆VIN (Note 2) ∆VOUT Load Regulation I L = 0mA to 5mA ● 0.002 0.018 0.002 0.05 %/mA ∆IOUT (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.

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

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 MIN0.100 (2.54) BSC

0.300 BSC

(0.762 BSC) 0.008 – 0.018 0.005 (0.127) MIN 0.405 (10.287) MAX 0.220 – 0.310 (5.588 – 7.874) 12 3 4 87 65 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

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) MIN0.018 ± 0.003 (0.457 ± 0.076) 0.125 (3.175) MIN 12 3 4 87 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 –0.3818.255() *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) 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.

Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● 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