ADR318 Analog Devices, Inc., ADR318 Datasheet
ADR318
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ADR318 Summary of contents
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... The V pin enables greater accuracy by supporting full OUT (SENSE) Kelvin operation in PCBs employing thin or long traces. The ADR318 is a low dropout voltage (LDV) device that provides a stable output voltage from supplies as low as 600 mV 1 Protected by U.S. Patent No. 5,969,657; other patents pending. Rev. A Information furnished by Analog Devices is believed to be accurate and reliable ...
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... ADR318 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Pin Configuration............................................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Electrical Characteristics............................................................. 3 Absolute Maximum Ratings............................................................ 4 Thermal Resistance ...................................................................... 4 ESD Caution.................................................................................. 4 Typical Performance Characteristics ............................................. 5 Terminology ...................................................................................... 8 REVISION HISTORY 10/06—Rev Rev. A Updated Format..................................................................Universal Changes to Ordering Guide .......................................................... 12 Updated Outline Dimensions ....................................................... 12 1/03—Revision 0: Initial Version Theory of Operation ...
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... ΔV OUT V O_HYS RRR 5 15 SHDN I LOGIC V INL V INH Rev Page ADR318 Min Typ Max Unit 1.795 1.8 1.802 V −0.27 +0. ppm/°C 600 ppm/V 100 ppm/mA 100 120 μA 140 μA 5 μV p-p 20 μ ...
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... ADR318 ABSOLUTE MAXIMUM RATINGS At 25°C, unless otherwise noted. Table 2. Parameter Supply Voltage Output Short-Circuit Duration to GND Storage Temperature Range: RJ-5 Package Operating Temperature Range Junction Temperature Range: RJ-5 Package Lead Temperature Range (Soldering, 60 sec) Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only ...
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... V = 2.5V TO 15V IN –5 –10 –15 –20 – TEMPERATURE (°C) Figure 5. Line Regulation vs. Temperature 2.5 2.3 0°C 2.1 70°C 1.9 1 LOAD CURRENT (mA) Figure 6. Minimum Input Voltage vs. Load Current TIME (400ms/DIV) Figure 7. Typical Output Voltage Noise 0 ADR318 25° ...
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... ADR318 TIME (10ms/DIV) Figure 8. Typical Output Voltage Noise kHz OUT TIME (40µs/DIV) Figure 9. Line Transient Response OUT TIME (40µs/DIV) Figure 10. Line Transient Response μF BYPASS = 0.1 μF BYPASS Rev Page OUT V LOAD OFF ...
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... TIME (40µs/DIV) Figure 14. Turn-On/Turn-Off Response OUT TIME (100µs/DIV) Figure 15. Turn-On/Turn-Off Response LOAD = 1.8 kΩ LOAD = 1.8 kΩ 0.1 μF BYPASS Rev Page ADR318 V OUT SHUTDOWN PIN TIME (4µs/DIV) Figure 16. Shutdown Pin Response ...
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... ADR318 TERMINOLOGY Temperature Coefficient Temperature coefficient is the change of output voltage with respect to operating temperature changes, normalized by the output voltage at 25°C. This parameter is expressed in ppm/°C, and can be determined with the following equation − ⎡ ⎤ ppm = TCV ( ⎢ ...
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... THEORY OF OPERATION Band gap references are the high performance solution for low supply voltage and low power voltage reference applications, and the ADR318 is no exception. The uniqueness of this lies in its architecture. By observing Figure 17, the ideal zero temperature coefficient (TC) band gap voltage is referenced to the output, not to ground ...
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... ADR318. The power bipolar junction transistor (BJT) Q1 provides the required current, up –VREF The ADR318 delivers the base drive to Q1 through the force pin. The sense pin of the ADR318 is a regulated output and is connected to the load. Rev Page ...
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... A similar circuit function can also be achieved using the = Darlington transistor configuration, as shown in Figure 22. L, MAX Figure 22. High Output Current with Darlington Drive Configuration Rev Page 4.7kΩ ADR318 SHDN GND OUT(S) OUT( ADR318 ...
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... Temperature Model Range ADR318ARJ-R2 0°C to 70°C ADR318ARJ-REEL 0°C to 70°C ADR318ARJ-REEL7 0°C to 70°C 1 ADR318ARJZ-REEL7 0°C to 70° Pb-free part. ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C03431-0-10/06(A) 2.90 BSC ...