Low Noise, Micropower 5.0 V Precision Voltage Reference ADR293-EP 6.0 V to 15 V supply range Supply current: 15 μA maximum Low noise: 15 μV p-p typical (0.1 Hz to 10 Hz) High output current: 5 mA Pin-compatible with the REF02/REF19x ENHANCED PRODUCT FEATURES Supports defense and aerospace applications (AQEC standard) Military temperature range (−55°C to +125°C) Controlled manufacturing baseline 1 assembly/test site 1 fabrication site Enhanced product change notification Qualification data available on request PIN CONFIGURATION ADR293-EP NC 1 8 NC VIN 2 7 NC NC 3 6 VOUT GND 4 5 NC TOP VIEW (Not to Scale) NC = NO CONNECT 09356-002 FEATURES Figure 1. 8-Lead TSSOP (RU-8) APPLICATIONS Portable instrumentation Precision reference for 5 V systems ADC and DAC reference Solar-powered applications GENERAL DESCRIPTION The ADR293-EP is a low noise, micropower precision voltage reference that utilizes an XFET® (eXtra implanted junction FET) reference circuit. The XFET architecture offers significant performance improvements over traditional band gap and buried Zener-based references. Improvements include one quarter the voltage noise output of band gap references operating at the same current, very low and ultralinear temperature drift, low thermal hysteresis, and excellent longterm stability. The ADR293-EP is a series voltage reference providing stable and accurate output voltage from a 6.0 V supply. Quiescent current is only 15 μA maximum, making this device ideal for battery powered instrumentation. The temperature coefficient is 30 ppm/°C maximum over the military temperature range, and the initial error is only 0.2% at 25°C. Line regulation and load regulation are typically 70 ppm/V and 30 ppm/mA, respectively, maintaining the reference’s overall high performance. The ADR293-EP is specified over the military temperature range of –55°C to +125°C. This device is available in an 8-lead TSSOP package. Additional applications information is available in the ADR293 data sheet. Rev. 0 Information furnished by Analog Devices is believed to be 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. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2010 Analog Devices, Inc. All rights reserved. ADR293-EP TABLE OF CONTENTS Features .............................................................................................. 1 Electrical Specifications ................................................................3 Enhanced Product Features ............................................................ 1 Absolute Maximum Ratings ............................................................5 Applications ....................................................................................... 1 Thermal Resistance .......................................................................5 Pin Configuration ............................................................................. 1 ESD Caution...................................................................................5 General Description ......................................................................... 1 Typical Performance Characteristics ..............................................6 Revision History ............................................................................... 2 Outline Dimensions ..........................................................................9 Specifications..................................................................................... 3 Ordering Guide .............................................................................9 REVISION HISTORY 9/10—Revision 0: Initial Version Rev. 0 | Page 2 of 12 ADR293-EP SPECIFICATIONS ELECTRICAL SPECIFICATIONS VS = 6.0 V, TA = 25°C, unless otherwise noted. Table 1. Parameter OUTPUT VOLTAGE T Grade INITIAL ACCURACY T Grade Symbol VOUT LINE REGULATION T Grade LOAD REGULATION T Grade LONG-TERM STABILITY VOLTAGE NOISE VOLTAGE NOISE DENSITY ΔVOUT /ΔVIN Conditions IOUT = 0 mA Min Typ Max Unit 4.990 5.000 5.010 V +10 0.20 mV % 40 150 ppm/V 30 50 15 640 150 ppm/mA ppm μV p-p nV/√Hz IOUT = 0 mA –10 6.0 V to 15 V, IOUT = 0 mA ΔVOUT /ΔILOAD VS = 6.0 V, IOUT = 0 mA to 5 mA ΔVOUT eN p-p eN After 1000 hours of operation @ 125°C f = 0.1 Hz to 10 Hz f = 1 kHz VS = 6.0 V, TA = −25°C to +85°C, unless otherwise noted. Table 2. Parameter TEMPERATURE COEFFICIENT T Grade LINE REGULATION T Grade LOAD REGULATION T Grade Symbol TCVOUT Conditions IOUT = 0 mA ΔVOUT/ΔVIN 6.0 V to 15 V, IOUT = 0 mA ΔVOUT/ΔILOAD VS = 6.0 V, IOUT = 0 mA to 5 mA Rev. 0 | Page 3 of 12 Min Typ Max Unit 10 25 ppm/°C 50 200 ppm/V 30 200 ppm/mA ADR293-EP VS = 6.0 V, TA = −55°C to +125°C, unless otherwise noted. Table 3. Parameter TEMPERATURE COEFFICIENT T Grade LINE REGULATION T Grade LOAD REGULATION T Grade SUPPLY CURRENT Symbol TCVOUT Conditions IOUT = 0 mA ΔVOUT/ΔVIN 6.0 V to 15 V, IOUT = 0 mA ΔVOUT/ΔILOAD VS = 6.0 V, 0 mA to 5 mA THERMAL HYSTERESIS T Grade VOUT-HYS IS @ 25°C Min Typ Max Unit 10 30 ppm/°C 70 250 ppm/V 30 11 300 15 ppm/mA μA 15 20 μA 157 Rev. 0 | Page 4 of 12 ppm ADR293-EP ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE Table 4. Parameter Supply Voltage Output Short-Circuit Duration to GND Storage Temperature Range Operating Temperature Range Junction Temperature Range Lead Temperature (Soldering, 60 sec) Rating 18 V Indefinite −65°C to +150°C −55°C to +125°C −65°C to +150°C 300°C 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. θJA is specified for worst-case conditions; that is, θJA is specified for the device in socket testing. In practice, θJA is specified for the device soldered in a circuit board. Table 5. Thermal Resistance Package Type 8-Lead TSSOP (RU-8) ESD CAUTION Rev. 0 | Page 5 of 12 θJA 240 θJC 43 Unit °C/W ADR293-EP TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. 5.006 80 3 TYPICAL PARTS VS = 6V 70 LINE REGULATION (ppm/mA) OUTPUT VOLTAGE (V) 5.004 5.002 5.000 4.998 VS = 6.1V IL = 0 TO 5mA 60 50 40 30 20 4.996 30 60 90 120 TEMPERATURE (°C) 0 –60 1 ΔVOUT FROM NOMINAL (mV) 13 12 11 VS = 15V 10 VS = 6V 0 60 30 60 90 120 TEMPERATURE (°C) 0 –1 TA = +125°C TA = –40°C –2 –4 0.1 1 SOURCING LOAD CURRENT (mA) VIN = 15V TA = 25°C VOLTAGE NOISE DENSITY (nV/ Hz) VS = 6.1V TO 15B 40 30 20 10 30 60 90 TEMPERATURE (°C) 120 09356-006 LINE REGULATION (ppm/V) 50 0 10 Figure 6. ΔVOUT from Nominal vs. Load Current 60 –30 120 TA = +25°C Figure 3. Supply Current vs. Temperature 0 –60 90 –3 09356-005 SUPPLY CURRENT (µA) 2 –30 30 Figure 5. Load Regulation vs. Temperature 14 8 –60 0 TEMPERATURE (°C) Figure 2. VOUT vs. Temperature 9 –30 09356-010 0 Figure 4. Line Regulation vs. Temperature 1k 100 10 100 FREQUENCY (Hz) Figure 7. Voltage Noise Density vs. Frequency Rev. 0 | Page 6 of 12 1k 09356-011 –30 09356-003 4.994 –60 09356-009 10 ADR293-EP 120 IL = 5mA VS = 6V RIPPLE REJECTION (dB) 100 5V/DIV 80 60 40 20 100 FREQUENCY (Hz) 1k 09356-012 50µs/DIV 0 10 Figure 8. Ripple Rejection vs. Frequency OUTPUT IMPEDANCE (Ω) 100 09356-015 2V/DIV Figure 11. Turn-On Time IL = 5mA VS = 6V IL = 0mA 5V/DIV 10 1 10 100 1k FREQUENCY (Hz) 10k 09356-013 50µs/DIV 09356-016 2V/DIV Figure 9. Output Impedance vs. Frequency Figure 12. Turn-Off Time IL = 5mA 1ms/DIV Figure 13. Load Transient Response Figure 10. 0.1 Hz to 10 Hz Noise Rev. 0 | Page 7 of 12 09356-017 1s/DIV 09356-014 10µV p-p ADR293-EP 18 II = 5mA CL = 1nF TEMPERATURE +25°C → –40°C → +85°C → +25°C 09356-018 12 10 8 6 4 2 0 –200 –160 –120 –80 Figure 14. Load Transient Response –40 0 40 80 120 VOUT DEVIATION (ppm) 160 200 Figure 16. Typical Hysteresis for the ADR29x Product 09356-019 II = 5mA CL = 100nF 1ms/DIV 14 Figure 15. Load Transient Response Rev. 0 | Page 8 of 12 240 09356-020 1ms/DIV FREQUENCY IN NUMBER OF UNITS 16 ADR293-EP OUTLINE DIMENSIONS 3.10 3.00 2.90 8 5 4.50 4.40 4.30 1 6.40 BSC 4 PIN 1 0.65 BSC 0.15 0.05 1.20 MAX COPLANARITY 0.10 0.30 0.19 SEATING 0.20 PLANE 0.09 8° 0° 0.75 0.60 0.45 COMPLIANT TO JEDEC STANDARDS MO-153-AA Figure 17. 8-Lead Thin Shrink Small Outline Package [TSSOP] (RU-8) Dimensions shown in millimeters ORDERING GUIDE Model ADR293TRU-EP ADR293TRU-EP-R7 Output Voltage (V) 5.00 5.00 Initial Accuracy (%) 0.20 0.20 Temperature Coefficient (ppm/°C max) 30 30 Temperature Range −55°C to +125°C −55°C to +125°C Rev. 0 | Page 9 of 12 Package Description 8-Lead TSSOP 8-Lead TSSOP Package Option RU-8 RU-8 Ordering Quantity 96 1,000 ADR293-EP NOTES Rev. 0 | Page 10 of 12 ADR293-EP NOTES Rev. 0 | Page 11 of 12 ADR293-EP NOTES ©2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 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