REF-01/REF-02 Precision Voltage References U FEATURES ■ ■ ■ ■ ■ ■ DESCRIPTIO 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 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. U APPLICATIO S ■ ■ ■ ■ ■ The REF-02 includes a temperature output pin which provides a linear voltage proportional to absolute temperature. A/D and D/A Converters Precision Regulators Constant Current Sources V/F Converters Bridge Excitation 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. U TYPICAL APPLICATIO Ultra Linear Strain Gauge Amplifier REF-02 OUT GND 350Ω BRIDGE A1† LT307 R2 20k R4 20k – ACTIVE ELEMENT R5 2M 1.003 – A2 LT1001 GAIN = 100 + R6 2M** TA01a –5V *REDUCES REFERENCE AND AMPLIFIER LOADING. **IF R6 = R3, BRIDGE IS NOT LOADED BY R2 AND R4. † A1 VOS AND DRIFT ARE NOT CRITICAL. 357Ω* 1/2W –15V OUTPUT VOLTAGE (NORMALIZED) IN R3 2M 5V + 412Ω* 1/2W 15V Output Voltage Temperature Drift 1.002 0°C TO 70°C BOX GUARANTEED FOR REF-01E AND REF-02E (8.5ppm/°C) 1.001 1.000 0.999 0.998 FULL TEMP RANGE BOX GUARANTEED FOR REF-01A AND REF-02A (8.5ppm/°C) 0.997 –50 –25 50 25 75 0 TEMPERATURE (°C) 100 125 TA01b 1 REF-01/REF-02 W W U W ABSOLUTE AXI U RATI GS (Note 1) REF-01/REF-02 A, E, H ............................................ 40V REF-01C/REF-02C ................................................... 30V Power Dissipation .............................................. 500mW Output Short-Circuit Duration To Ground ................................................... Indefinite To VIN ≤ 16V ............................................... Indefinite 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 U W U PACKAGE/ORDER I FOR ATIO ORDER PART NUMBER TOP VIEW NC* 8 NC* 1 7 NC* 6 OUTPUT INPUT 2 TEMP** 3 5 TRIM 4 GND (CASE) H PACKAGE 8-LEAD TO-5 METAL CAN TJMAX = 150°C, θJA = 150°C/W, θJC = 45°C/W *INTERNALLY CONNECTED. DO NOT CONNECT EXTERNALLY. **DO NOT CONNECT ON REF-01 REF01AH REF01H REF01EH REF01HH REF01CH REF02AH REF02H REF02EH REF02HH REF02CH REF02DH ORDER PART NUMBER TOP VIEW NC* 1 8 NC* INPUT 2 7 NC* TEMP** 3 6 OUTPUT GND 4 5 TRIM REF01EN8 REF01HN8 REF01CN8 N8 PACKAGE 8-LEAD PDIP TJMAX = 100°C, θJA = 130°C/W *INTERNALLY CONNECTED. DO NOT CONNECT EXTERNALLY. **DO NOT CONNECT ON REF-01 REF01EJ8 REF01HJ8 REF01CJ8 J8 PACKAGE 8-LEAD CERDIP TJMAX = 150°C, θJA = 100°C/W REF02EN8 REF02HN8 REF02CN8 REF02DN8 REF02EJ8 REF02HJ8 REF02CJ8 REF02DJ8 OBSOLETE PACKAGE OBSOLETE PACKAGE Consider the N Package for Alternate Source Consider the N Package for Alternate Source Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS VIN = 15V, TA = 25°C unless otherwise noted. REF-01A/E, REF-02A/E MIN TYP MAX REF-01H, REF-02H MIN TYP MAX REF-01 REF-02 9.97 4.985 10 5 9.95 4.975 10 5 REF-01 REF-02 ±3 ±3 5, –27 5, –13 ±3 ±3 5, –27 5, –13 SYMBOL PARAMETER CONDITIONS VO Output Voltage IL = 0mA Output Adjustment Range RP = 10kΩ enP-P Output Voltage Noise 0.1Hz to 10Hz (Note 7) REF-01 REF-02 VIN Input Voltage Range REF-01 REF-02 ∆VOUT ∆VIN Line Regulation (Note 2) (VOUT + 3V) ≤ VIN ≤ 33V ∆VOUT ∆IOUT Load Regulation (Note 2) IL = 0mA to 10mA IQ Quiescent Supply Current No Load IOUT Load Current Sink Current ISC Short-Circuit Current VO = 0V VT Temperature Voltage Output (Note 3) 2 20 10 12 7 REF-01 REF-02 10 –0.3 REF-02 Only 10.03 5.015 10.05 5.025 12 7 V V % % µVP-P µVP-P 20 10 40 40 UNITS 40 40 V V 0.0001 0.010 0.0001 0.010 %/V 0.0005 0.0010 0.008 0.010 0.0005 0.001 0.010 0.010 %/mA %/mA 0.65 1.4 0.65 1.4 20 –20 10 –0.3 20 –20 mA mA mA 25 25 mA 620 620 mV REF-01/REF-02 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS VO IL = 0mA Output Voltage Output Adjustment Range enP-P Output Voltage Noise RP = 10kΩ VIN = 15V, TA = 25°C unless otherwise noted. REF-01C, REF-02C MIN TYP MAX MIN REF-02D TYP MAX UNITS REF-01 REF-02 9.9 4.95 10 5 4.9 5 5.1 V V REF-01 REF-02 ±2.7 5, –27 5, –13 ±2 5, –13 0.1Hz to 10Hz (Note 7) REF-01 REF-02 10.1 5.05 30 12 Line Regulation (Note 2) (VOUT + 3V) ≤ VIN ≤ 33V 0.0001 0.015 ∆VOUT ∆IOUT Load Regulation (Note 2) IL = 0mA to 8mA IL = 0mA to 4mA 0.0005 0.015 IQ Quiescent Supply Current No Load IOUT Load Current Sink Current ISC Short-Circuit Current VO = 0V VT Temperature Voltage Output (Note 3) 8 –0.2 REF-02 Only µVP-P µVP-P 12 ∆VOUT ∆VIN 0.65 % % 1.6 20 20 8 –0.2 0.0001 0.04 %/V 0.001 0.04 %/mA %/mA 0.65 2 mA 20 20 mA mA 25 25 mA 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. SYMBOL PARAMETER ∆V ∆T CONDITIONS REF-01A/E, REF-02A/E MIN TYP MAX REF-01H/REF-02H MIN TYP MAX UNITS Output Voltage Change with Temperature (Notes 4, 5) 0°C ≤ TA ≤ 70°C –55°C ≤ TA ≤ 125°C ● ● 0.02 0.09 0.06 0.15 0.035 0.144 0.17 0.45 Output Voltage Temperature Coefficient (Note 6) ● 5 8.5 8 25 Change in VO Temperature Coefficient with Output Adjustment RP = 10kΩ ● 0.5 ∆VOUT ∆VIN Line Regulation (VOUT + 3V) ≤ VIN ≤ 33V (Note 2) 0°C ≤ TA ≤ 70°C –55°C ≤ TA ≤ 125°C ● ● 0.0001 0.0001 0.012 0.015 0.0001 0.0001 0.012 0.015 %/V %/V ∆VOUT ∆IOUT Load Regulation (IL = 0mA to 8mA) (Note 2) 0°C ≤ TA ≤ 70°C –55°C ≤ TA ≤ 125°C ● ● 0.002 0.002 0.010 0.012 0.002 0.002 0.012 0.015 %/mA %/mA Temperature Voltage Output Temperature Coefficient (Note 3) REF-02 ● 2.1 TC 0.5 2.1 % % ppm/°C ppm/% mV/°C 3 REF-01/REF-02 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. SYMBOL PARAMETER ∆V ∆T REF-01C, REF-02C MIN TYP MAX CONDITIONS MIN REF-02D TYP MAX UNITS 1.7 % 250 ppm/°C Output Voltage Change with Temperature (Notes 4, 5) ● Output Voltage Temperature Coefficient (Note 6) ● 8 Change in VO Temperature Coefficient with Output Adjustment RP = 10kΩ ● 0.5 ∆VOUT ∆VIN Line Regulation (Note 2) VIN = 8V to 30V ● 0.0001 0.018 0.0001 0.05 %/V ∆VOUT ∆IOUT Load Regulation (Note 2) IL = 0mA to 5mA ● 0.002 0.018 0.002 0.05 %/mA Temperature Voltage Output Temperature Coefficient (Note 3) REF-02 ● 2.1 TC 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 V ∆V = MAX MIN •100 VOUT 4 0.45 65 8 0.5 ppm/% 2.1 mV/°C Note 5: ∆V specification applies trimmed or untrimmed. Note 6: TC is defined as ∆V divided by the temperature range, i.e., ∆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. TC = REF-01/REF-02 U PACKAGE DESCRIPTIO H Package 8-Lead TO-5 Metal Can (.230 Inch PCD) (Reference LTC DWG # 05-08-1321) 0.335 – 0.370 (8.509 – 9.398) DIA 0.305 – 0.335 (7.747 – 8.509) 0.040 (1.016) MAX 0.050 (1.270) MAX SEATING PLANE 0.165 – 0.185 (4.191 – 4.699) GAUGE PLANE 0.010 – 0.045* (0.254 – 1.143) REFERENCE PLANE 0.500 – 0.750 (12.700 – 19.050) 0.016 – 0.021** (0.406 – 0.533) 0.027 – 0.045 (0.686 – 1.143) 45°TYP PIN 1 0.028 – 0.034 (0.711 – 0.864) 0.230 (5.842) TYP 0.110 – 0.160 (2.794 – 4.064) INSULATING STANDOFF *LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND 0.045" BELOW THE REFERENCE PLANE 0.016 – 0.024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 – 0.610) H8 (TO-5) 0.230 PCD 1197 OBSOLETE PACKAGE 5 REF-01/REF-02 U PACKAGE DESCRIPTIO J8 Package 8-Lead CERDIP (Narrow .300 Inch, Hermetic) (Reference LTC DWG # 05-08-1110) CORNER LEADS OPTION (4 PLCS) 0.023 – 0.045 (0.584 – 1.143) HALF LEAD OPTION 0.045 – 0.068 (1.143 – 1.727) FULL LEAD OPTION 0.005 (0.127) MIN 0.405 (10.287) MAX 8 7 6 5 0.025 (0.635) RAD TYP 0.220 – 0.310 (5.588 – 7.874) 1 2 0.300 BSC (0.762 BSC) 3 4 0.200 (5.080) MAX 0.015 – 0.060 (0.381 – 1.524) 0.008 – 0.018 (0.203 – 0.457) 0° – 15° NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS 0.045 – 0.065 (1.143 – 1.651) 0.014 – 0.026 (0.360 – 0.660) OBSOLETE PACKAGE 6 0.100 (2.54) BSC 0.125 3.175 MIN J8 1298 REF-01/REF-02 U PACKAGE DESCRIPTIO N8 Package 8-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510) 0.400* (10.160) MAX 8 7 6 5 1 2 3 4 0.255 ± 0.015* (6.477 ± 0.381) 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) ( +0.035 0.325 –0.015 8.255 +0.889 –0.381 ) 0.045 – 0.065 (1.143 – 1.651) 0.130 ± 0.005 (3.302 ± 0.127) 0.065 (1.651) TYP 0.100 (2.54) BSC 0.125 (3.175) 0.020 MIN (0.508) MIN 0.018 ± 0.003 (0.457 ± 0.076) N8 1098 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) 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 representation that the interconnection of circuits as described herein will not infringe on existing patent rights. 7 REF-01/REF-02 RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LT1019 0.05%, 5ppm/°C Precision Reference Pin Compatible with the REF-01, REF-02, Improved Specs 8 Linear Technology Corporation ref012fc LT/CP 0901 1.5K REV C • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com © LINEAR TECHNOLOGY CORPORATION 1991