ADR292FR Analog Devices Inc, ADR292FR Datasheet
ADR292FR
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... Loop-current-powered instruments GENERAL DESCRIPTION The ADR291 and ADR292 are low noise, micropower precision voltage references that use an XFET® reference circuit. The new XFET architecture offers significant performance improvements over traditional band gap and buried Zener-based references. Improvements include one quarter the voltage noise output of ...
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... Applications Information .............................................................. 14 Negative Precision Reference Without Precision Resistors.. 14 Precision Current Source .......................................................... 14 High Voltage Floating Current Source .................................... 14 Kelvin Connections.................................................................... 15 Low Power, Low Voltage Reference for Data Converters ..... 15 Voltage Regulator for Portable Equipment ............................. 15 Outline Dimensions ....................................................................... 16 Ordering Guide .......................................................................... 17 9/03—Rev Rev. C Deleted ADR290.................................................................Universal Changes to Specifications ...
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SPECIFICATIONS ADR291 ELECTRICAL SPECIFICATIONS 25°C, unless otherwise noted Table 2. Parameter Symbol E GRADE Output Voltage V OUT Initial Accuracy V OERR F GRADE Output Voltage V OUT Initial ...
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ADR291/ADR292 −40°C to+125°C, unless otherwise noted Table 4. Parameter TEMPERATURE COEFFICIENT E Grade F Grade G Grade LINE REGULATION E/F Grades G Grade LOAD REGULATION E/F Grades G Grade ...
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−25°C to +85°C, unless otherwise noted Table 6. Parameter TEMPERATURE COEFFICIENT E Grade F Grade G Grade LINE REGULATION E/F Grades G Grade LOAD REGULATION E/F Grades G Grade ...
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ADR291/ADR292 ABSOLUTE MAXIMUM RATINGS Remove power before inserting or removing units from their sockets. Table 8. Parameter Supply Voltage Output Short-Circuit Duration to GND Storage Temperature Range Packages Operating Temperature Range ADR291/ADR292 Junction Temperature Range T, R, ...
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PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS ADR291 ADR292 TOP VIEW 6 OUT (Not to Scale) GND CONNECT Figure 4. 8-Lead SOIC (R-8) Table ...
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ADR291/ADR292 TYPICAL PERFORMANCE CHARACTERISTICS 2.506 2.504 2.502 2.500 2.498 2.496 2.494 –50 – TEMPERATURE (°C) Figure 7. ADR291 V vs. Temperature OUT 4.102 4.100 4.098 4.096 4.094 4.092 4.090 ...
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ADR291 3.0V TO 15V S ADR292 4.5V TO 15V ADR291 –50 – TEMPERATURE (°C) Figure 13. ADR291/ADR292 Line Regulation vs. Temperature 0.7 0 ...
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ADR291/ADR292 0 –500 –1000 T = –40°C A –1550 –2000 –2500 –3000 –3500 –4000 0.1 1 SOURCING LOAD CURRENT (mA) Figure 19. ADR292 ΔV from Nominal vs. Load Current OUT 1000 ADR292 900 800 700 ADR291 600 500 400 300 ...
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I = 5mA L OFF 100 Figure 25. ADR291 Load Transient I = 5mA 1nF L 100 OFF Figure 26. ADR291 Load Transient I = 5mA ...
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ADR291/ADR292 TERMINOLOGY Line Regulation Line regulation refers to the change in output voltage due to a specified change in input voltage. It includes the effects of self- heating. Line regulation is expressed as percent-per-volt, parts- per-million-per-volt, or microvolts-per-volt change in ...
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... By running the two JFETs at the same drain current, the difference in pinch-off voltage can be amplified and used to form a highly stable voltage reference. The intrinsic reference voltage is around 0.5 V with a negative temperature coefficient of about −120 ppm/K. This slope is essentially ...
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... A1 = 1/2 OP291, 1/2 OP295 Figure 33. A Negative Precision Voltage Reference Uses No Precision Resistors PRECISION CURRENT SOURCE In low power applications, there is often a need for a precision current source that can operate on low supply voltages. As shown in Figure 34, any one of the devices in the ADR291/ ADR292 family of references can be configured as a precision current source ...
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... These narrow lines can cause large voltage drops if the voltage reference is required to provide load currents to various functions. In fact, circuit interconnects can exhibit a typical line resistance of 0.45 mΩ/square (1 oz. Cu, for example) ...
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ADR291/ADR292 OUTLINE DIMENSIONS 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2441) 4.00 (0.1574) 1 5.80 (0.2284) 3.80 (0.1497) 4 1.27 (0.0500) BSC 1.75 (0.0688) 1.35 (0.0532) 0.25 (0.0098) 0.10 (0.0040) 0.51 (0.0201) COPLANARITY 0.10 0.31 (0.0122) 0.25 (0.0098) SEATING PLANE ...
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... ADR291GT9-REEL 2.50 1 ADR291GT9Z 2.50 ADR292ER 4.096 ADR292ER-REEL 4.096 1 ADR292ERZ 4.096 1 ADR292ERZ-REEL 4.096 ADR292FR 4.096 ADR292FR-REEL 4.096 ADR292FR-REEL7 4.096 1 ADR292FRZ 4.096 1 ADR292FRZ-REEL 4.096 1 ADR292FRZ-REEL7 4.096 ADR292GR 4.096 ADR292GR-REEL7 4.096 1 ADR292GRZ 4.096 1 ADR292GRZ-REEL7 4.096 ADR292GRU 4.096 ADR292GRU-REEL7 4.096 1 ADR292GRUZ 4.096 1 ADR292GRUZ-REEL7 4.096 RoHS Compliant Part ...
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ADR291/ADR292 NOTES Rev Page ...
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NOTES Rev Page ADR291/ADR292 ...
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ADR291/ADR292 NOTES ©2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D00163-0-12/07(E) Rev Page ...