REF02_05 AD | Alldatasheet
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5 V Precision Voltage
Reference/Temperature Transducer REF02 Rev. I Information furnished by Analog D evices is believed to b e accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 © 2005 Analog Devices, Inc. All rights reserved.
FEATURES
5 V output: ±0.3% maximum Temperature voltage output: 1.96 mV/°C Adjustment range: ±3% minimum Excellent temperature stability: 8.5 ppm/°C maximum Low noise: 15 µV p-p maximum Low supply current: 1.4 mA maximum Wide input voltage range: 7 V to 40 V High load-driving capability: 10 mA No external components Short-circuit proof GENERAL DESCRIPTION The REF02 precision voltage reference provides a stable 5 V output that can be adjusted over a ±6% range with minimal effect on temperature stability. Single-supply operation over an input voltage range of 7 V to 40 V, low current drain of 1 mA, and excellent temperature stability are achieved with an improved band gap design. Low cost, low noise, and low power make the REF02 an excellent choice whenever a stable voltage reference is required. Applications include DACs and ADCs, portable instrumentation, and digital voltmeters. The versatility of the REF02 is enhanced by its use as a monolithic temperature transducer. For new designs, refer to the ADR02. PIN CONFIGURATIONS 00375-F-001 NC GROUND (CASE) NC VIN VOUT NC NC TRIM NC = NO CONNECT. DO NOT CONNECT ANYTHING ON THESE PINS. SOME OF THEM ARE RESERVED FOR FACTORY TESTING PURPOSES. Figure 1. 8-Lead TO-99 (J-Suffix) FOR FACTORY TESTING PURPOSES. Figure 2. 8-Lead PDIP (P-Suffix), 8-Lead CERDIP (Z-Suffix)
15 VOUT
FOR FACTORY TESTING PURPOSES. Figure 3. 20-Terminal LCC (RC-Suffix) Figure 4. Simplified Schematic
Rev. I | Page 2 of 16 TABLE OF CONTENTS
REVISION HISTORY
12/05—Rev. H to Rev. I 5/05—Rev. G to Rev. H 2/05—Rev. F to Rev. G 7/04—Rev. E to Rev. F 3/04—Rev. D to Rev. E 10/03—Rev. C to Rev. D 10/02—Rev. B to Rev. C
Rev. I | Page 3 of 16 SPECIFICATIONS ELECTRICAL SPECIFICATIONS @ VIN = 15 V , TA = 25°C, unless otherwise noted. Table 1. REF02A/REF02E REF02/REF02H Parameter Symbol Conditions Min Typ Max Min Typ Max Unit Output Adjustment Range ∆VTRIM RP = 10 kΩ ±3 ±6 ±3 ±6 % Output Voltage Noise1 en p-p 0.1 Hz to 10 Hz P , Z, and S Packages 15 15 µV p-p J Package 20 20 µV p-p
883 Parts 10 15 10 15 µV p-p
Line Regulation2 VIN = 8 V to 40 V 0.006 0.010 0.006 0.010 %/V Load Regulation2 IL = 0 mA to 10 mA 0.005 0.010 0.006 0.010 %/mA Turn-On Settling Time1 tON To ±0.1% of final value 5 5 µs Quiescent Supply Current ISY No load 1.0 1.4 1.0 1.4 mA Load Current IL 10 10 mA Sink Current3 IS −0.3 –0.5 –0.3 –0.5 mA Short-Circuit Current ISC VO = 0 30 30 mA Temperature Voltage Output4 883C Product VT 630 630 mV P , S, J, and Z Packages VT 550 550 mV 1 Guaranteed by design. 2 Line and load regulation specifications include the effect of self-heating. 3 During sink current test, the device meets the output voltage specified. 4 Limit current in or out of Pin 3 to 50 nA and capacitance on Pin 3 to 30 pF.
Rev. I | Page 4 of 16 @ VIN = 15 V, −55°C ≤ TA ≤ +125°C for REF02A and REF02; 0°C ≤ TA ≤ 70°C for REF02E and REF02H; IL = 0 mA, unless otherwise noted. Table 2. REF02A/REF02E REF02/REF02H Parameter Symbol Conditions Min Typ Max Min Typ Max Unit 0°C ≤ TA ≤ 70°C 0.02 0.06 0.07 0.17 % Output Voltage Change with Temperature1, 2 ∆VOT Output Voltage Temperature Coefficient3 TCVO 3 8.5 10 25 ppm/°C Change in VO Temperature Coefficient with Output Adjustment RP = 10 kΩ 0.7 0.7 ppm/% 0°C ≤ TA ≤ 70°C 0.007 0.012 0.007 0.012 %/V Line Regulation VIN = 8 V to 40 V4 0.009 0.015 0.009 0.015 %/V 0°C ≤ TA ≤ 70°C 0.006 0.010 0.007 0.012 %/mA Load Regulation IL = 0 mA to 8 mA4 0.007 0.012 0.009 0.015 %/mA TCVT 2.10 2.10 mV/°C Temperature Voltage Output Temperature Coefficient5 883C Product P, S, J, and Z Packages 1.96 1.96 mV/°C 1 ΔVOT 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 5 V. 100V5 ×−=∆ MINMAX OT VVV 2 ∆VOT specification applies trimmed to 5,000 V or untrimmed. 3 TCVO is defined as ∆VOT divided by the temperature range. C70° ∆= OT O VTCV 4 Line and load regulation specifications include the effect of self-heating. 5 Limit current in or out of Pin 3 to 50 nA and capacitance on Pin 3 to 30 pF.
Rev. I | Page 5 of 16 @ VIN = 15 V , TA = 25°C, unless otherwise noted. Table 3. REF02C REF02D Parameter Symbol Conditions Min Typ Max Min Typ Max Unit Output Adjustment Range ∆VTRIM RP = 10 kΩ ±2.7 ±6.0 ±2.0 ±6.0 % Output Voltage Noise1 en p-p 0.1 Hz to 10 Hz P , Z, and S Packages 15 µV p-p J Package 20 15 µV p-p
883 Parts 12 18 20 µV p-p
Line Regulation2 VIN = 8 V to 40 V 0.009 0.015 0.010 0.04 %/V IL = 0 mA to 8 mA 0.006 0.015 %/mA Load Regulation2 IL = 0 mA to 4 mA 0.015 0.04 %/mA Turn-On Settling Time1 tON To ±0.1% of final value 5 5 µs Quiescent Supply Current ISY No load 1.0 1.6 1.0 2.0 mA Load Current IL 8 8 mA Sink Current3 IS −0.3 −0.5 −0.3 −0.5 mA Short-Circuit Current ISC VO = 0 30 30 mA Temperature Voltage Output4 883C Product VT 630 630 mV P , S, J, and Z Packages VT 550 550 mV 1 Guaranteed by design. 2 Line and load regulation specifications include the effect of self-heating. 3 During sink current test, the device meets the output voltage specified. 4 Limit current in or out of Pin 3 to 50 nA and capacitance on Pin 3 to 30 pF.
Rev. I | Page 6 of 16 @ VIN = 15 V, IL = 0 mA, 0°C ≤ TA ≤ 70°C for REF02CJ, REF02CZ, and REF02DP; and −40°C ≤ TA ≤ +85°C for REF02CP and REF02CS, unless otherwise noted. Table 4. REF02C REF02D Parameter Symbol Conditions Min Typ Max Min Typ Max Unit Output Voltage Change with Temperature1, 2 ∆VOT 0.14 0.45 0.49 1.7 % Output Voltage Temperature Coefficient3 TCVO 20 65 70 250 ppm/°C Change in VO Temperature Coefficient with Output Adjustment RP = 10 kΩ 0.7 0.7 ppm/% Line Regulation4 VIN = 8 V to 40 V 0.011 0.018 0.012 0.05 %/V Load Regulation4 IL = 0 mA to 5 mA 0.008 0.018 0.016 0.05 %/mA Temperature Voltage Output Temperature Coefficient5 TCVT 883C Product 2.10 2.10 mV/°C P, S, J, and Z Packages 1.96 1.96 mV/°C 1 ΔVOT 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 5 V. 100V5 ×−=∆ MINMAX OT VVV 2 ∆VOT specification applies trimmed to 5,000 V or untrimmed. 3 TCVO is defined as ΔVOT divided by the temperature range. C70° ∆= OT O VTCV 4 Line and load regulation specifications include the effect of self-heating. 5 Limit current in or out of Pin 3 to 50 nA and capacitance on Pin 3 to 30 pF.
Rev. I | Page 7 of 16 ABSOLUTE MAXIMUM RATINGS Table 5. Parameter Rating1 Input Voltage 40 V Output Short-Circuit Duration to Ground or VIN Indefinite Storage Temperature Range J, RC, and Z Packages –65°C to +150°C P Package –65°C to +125°C Operating Temperature Range REF02A, REF02J, REF02RC –55°C to +125°C REF02CJ, REF02CZ 0°C to 70°C REF02CP, REF02CS, REF02E, and REF02H –40°C to +85°C Lead Temperature Range (Soldering 10 sec) 300°C
1 Absolute maximum ratings apply to both DICE packaged parts, unless
otherwise noted. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. THERMAL RESISTANCE Table 6. Package Type θJA1 θJC Unit TO-99 (J) 170 24 °C/W 8-Lead CERDIP (Z) 162 26 °C/W 8-Lead PDIP (P) 110 50 °C/W 20-Terminal Ceramic LCC (RC) 120 40 °C/W 8-Lead SOIC (S) 160 44 °C/W 1 θJA is specified for worst-case mounting conditions; device in socket for TO, CERDIP, PDIP, and LCC packages; and device soldered to printed circuit board for SOIC package. ESD CAUTION ESD (elec trostatic dischar ge) sensitiv e device . Elec trostatic char ges as high as 4000 V r eadily ac cumulate on the human bod y and t est eq uipment and can dischar ge wi thout det ection. Although this product f eatures proprietary ESD pr otection ci rcuitry, per manent dama ge may oc cur on dev ices subjected to high energy electrostatic di scharges. Therefore, p roper ESD pr ecautions a re recommended to av oid per formance degradation or loss of functionality.
is approximately 1.96 mV/°C (see Figure 18). Figure 18. Voltage at TEMP Pin vs. Temperature from the TEMP pin can cause VOUT to fall out of specification. Figure 19. Temperature Monitoring
- REF02 SHOULD BE THERMALLY CONNECTED
- NUMBERS IN PARENTHESES ARE FOR A
SETPOINT TEMPERATURE OF 60°C. Figure 20. Temperature Controller
55 V input change produces an output change that is less than
do not exceed the maximum usable current (typically 21 mA). Figure 21. Reference Stack
Figure 22. Precision Current Source Figure 23. Current Source bypassed with a 0.1 µF disc ceramic capacitor. Figure 24. Current Sink
2 B1 B2 B3 B4 B5 B6 B7 B8
Figure 25. DAC Reference Figure 26. ±3 V Reference
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. Figure 31. 8-Lead Standard Small Outline Package [SOIC]
Rev. I | Page 15 of 16 ORDERING GUIDE Model TA = 25°C ∆VOS Max (mV) Temperature Range Package Description Package Option REF02AJ/883C1 ±15 −55°C to +125°C 8-Lead TO-99 J-Suffix (H-08) REF02AZ ±15 −55°C to +125°C 8-Lead CERDIP Z-Suffix (Q-8) REF02AZ/883C1 ±15 −55°C to +125°C 8-Lead CERDIP Z-Suffix (Q-8) REF02CJ ±50 0°C to 70°C 8-Lead TO-99 J-Suffix (H-08) REF02CP ±50 −40°C to +85°C 8-Lead PDIP P-Suffix (N-8) REF02CPZ2 ±50 −40°C to +85°C 8-Lead PDIP P-Suffix (N-8) REF02CS ±50 −40°C to +85°C 8-Lead SOIC S-Suffix (R-8) REF02CS-REEL ±50 −40°C to +85°C 8-Lead SOIC S-Suffix (R-8) REF02CS-REEL7 ±50 −40°C to +85°C 8-Lead SOIC S-Suffix (R-8) REF02CSZ2 ±50 −40°C to +85°C 8-Lead SOIC S-Suffix (R-8) REF02CSZ-REEL2 ±50 −40°C to +85°C 8-Lead SOIC S-Suffix (R-8) REF02CSZ-REEL72 ±50 −40°C to +85°C 8-Lead SOIC S-Suffix (R-8) REF02CZ ±50 0°C to 70°C 8-Lead CERDIP Z-Suffix (Q-8) REF02DP ±100 0°C to 70°C 8-Lead PDIP P-Suffix (N-8) REF02DPZ2 ±100 0°C to 70°C 8-Lead PDIP P-Suffix (N-8) REF02EJ ±15 −40°C to +85°C 8-Lead TO-99 J-Suffix (H-08) REF02EZ ±15 −40°C to +85°C 8-Lead CERDIP Z-Suffix (Q-8) REF02J ±25 −55°C to +125°C 8-Lead TO-99 J-Suffix (H-08) REF02HJ ±25 −40°C to +85°C 8-Lead TO-99 J-Suffix (H-08) REF02HZ ±25 −40°C to +85°C 8-Lead CERDIP Z-Suffix (Q-8) REF02HP ±25 −40°C to +85°C 8-Lead PDIP P-Suffix (N-8) REF02HPZ2 ±25 −40°C to +85°C 8-Lead PDIP P-Suffix (N-8) REF02HS ±25 −40°C to +85°C 8-Lead SOIC S-Suffix (R-8) REF02HSZ2 ±25 −40°C to +85°C 8-Lead SOIC S-Suffix (R-8) REF02RC/8831 ±25 −55°C to +125°C 20-Lead LCC RC-Suffix (E-20A) REF02Z ±25 −55°C to +125°C 8-Lead CERDIP Z-Suffix (Q-8) 1 Consult sales for 883 data sheet. 2 Z = Pb-free part.
Rev. I | Page 16 of 16 NOTES © 2005 Analo g De vices, Inc. All rights reserved. Tr ademarks and registered tra demarks are the prop erty of their respective o wners. C00375-0-12/05(I)