ADR423 Analog Devices, ADR423 Datasheet
ADR423
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ADR423 Summary of contents
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... Devices are available in 8-lead SOIC-8 or 30% smaller 8-lead Mini_SOIC-8 packages. XFET is a registered trademark of Analog Devices, Inc. Ultraprecision Low Noise, 2.048 V/2.500 V/ 3.00 V/5.00 V XFET ADR420/ADR421/ADR423/ADR425 ADR420 Products ADR420 ADR421 ADR423 ADR425 Voltage References ® PIN CONFIGURATION Surface-Mount Packages 8-Lead SOIC 8-Lead Mini_SOIC TP 1 ...
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ADR42x–SPECIFICATIONS ADR420 ELECTRICAL SPECIFICATIONS Parameter Output Voltage A Grade Initial Accuracy Output Voltage B Grade Initial Accuracy Temperature Coefficient A Grade B Grade Supply Voltage Headroom Line Regulation Load Regulation Quiescent Current Voltage Noise Voltage Noise Density Turn-On Settling Time ...
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... ADR423 ELECTRICAL SPECIFICATIONS Parameter Output Voltage A Grade Initial Accuracy Output Voltage B Grade Initial Accuracy Temperature Coefficient A Grade B Grade Supply Voltage Headroom Line Regulation Load Regulation Quiescent Current Voltage Noise Voltage Noise Density Turn-On Settling Time Long-Term Stability Output Voltage Hysteresis Ripple Rejection Ratio Short Circuit to GND Specifications subject to change without notice ...
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... SO-8 ADR421 98 –40 to +125 SO-8 ADR421 3,000 –40 to +125 SO-8 ADR421 98 –40 to +125 SO-8 ADR421 3,000 –40 to +125 RM-8 R5A 1,000 –40 to +125 SO-8 ADR423 98 –40 to +125 SO-8 ADR423 3,000 –40 to +125 SO-8 ADR423 98 –40 to +125 SO-8 ADR423 3,000 –40 to +125 RM-8 1,000 –40 to +125 SO-8 ADR425 98 –40 to +125 SO-8 ADR425 3,000 – ...
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... V at 25°C after 1,000 hours operation at 125° ADR420/ADR421/ADR423/ADR425 Thermal Hysteresis Thermal hysteresis is defined as the change of output voltage after the device is cycled through temperature from +25°C to –40°C to +125°C and back to +25°C. This is a typical value from a sample of parts put through such a cycle. ...
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... ADR420/ADR421/ADR423/ADR425 ADR42x Series–Typical Performance Characteristics 2.0495 2.0493 2.0491 2.0489 2.0487 2.0485 2.0483 2.0481 2.0479 2.0477 2.0475 –40 – TEMPERATURE – C 2.5015 2.5013 2.5011 2.5009 2.5007 2.5005 2.5003 2.5001 2.4999 2.4997 2.4995 –40 – TEMPERATURE – C 3.0010 3.0008 3.0006 3 ...
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... C 0.30 0. INPUT VOLTAGE – 0mA TO 5mA 4. –40 – TEMPERATURE – C ADR420/ADR421/ADR423/ADR425 0mA TO 5mA +125 + – – – ...
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... ADR420/ADR421/ADR423/ADR425 4.5V TO 15V –40 – TEMPERATURE – 15V –40 – TEMPERATURE – –40 – TEMPERATURE – –40 80 110 125 2.5 2.0 1.5 1.0 0 110 125 2 ...
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... C 1.0 0 LOAD CURRENT – SAMPLE SIZE – 160 TEMPERATURE +25 C –40 C +125 C + DEVIATION – ppm ADR420/ADR421/ADR423/ADR425 100 10 10 TIME – 1s/DIV TIME – 1s/DIV ADR425 ADR423 ADR421 ADR420 100 1k 10k FREQUENCY – Hz ...
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... ADR420/ADR421/ADR423/ADR425 BYPASS OUT TIME – 100 s/DIV C = 0.1 F BYPASS OUT TIME – 100 s/DIV OUT LOAD OFF LOAD ON TIME – 100 s/DIV LINE INTERRUPTION 500mV/DIV 500mV/DIV LINE INTERRUPTION 500mV/DIV 500mV/DIV 1mA LOAD 1V/DIV 2V/DIV 1mA LOAD ...
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... IN TIME – 4 s/DIV C = 0.1 F BYPASS R = 500 5V/DIV OUT V 2V/DIV IN TIME – 100 s/DIV ADR420/ADR421/ADR423/ADR425 ADR423 20 ADR421 100 1k 10k FREQUENCY – Hz –10 –20 –30 –40 –50 –60 –70 –80 –90 10 100 1k 10k 100k FREQUENCY – Hz ...
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... Noise Performance The noise generated by the ADR42x family of references is typically less than 2 µV p-p over the 0 band for ADR420, ADR421, and ADR423. TPC 22 shows the 0 noise of the ADR421, which is only 1.75 µV p-p. The noise measurement is made with a bandpass filter made of a 2-pole high-pass filter with a corner frequency at 0 ...
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... The op amp must be dual supply, low offset, and have rail-to-rail capability if negative supply voltage is close to the reference output. ADR420/ADR421/ADR423/ADR425 High-Voltage Floating Current Source The circuit of Figure 6 can be used to generate a floating current source with minimal self-heating. This particular configuration ...
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... ADR420/ADR421/ADR423/ADR425 Dual Polarity References 0 OUT R1 ADR425 10k U1 TRIM 5 GND +2.5V +10V OUT ADR425 R1 U1 5.6k TRIM GND 5.6k –2.5V – Dual polarity references can easily be made with an op amp and a pair of resistors. In order not to defeat the accuracy obtained by ADR42x imperative to match the resistance tolerance as well as the temperature coefficient of all the components ...
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... It contains a charge- balancing (sigma-delta) ADC, calibration microcontroller with on-chip static RAM, a clock oscillator, and a serial communications port. ADR420/ADR421/ADR423/ADR425 +5V ANALOG SUPPLY 0.1 F ...
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... Edits to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Deletion of Precision Voltage Regulator section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Addition of Precision Boosted Output Regulator section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Addition of Figure Data Sheet changed from REV REV. A. Addition of ADR423 and ADR425 to ADR420/ADR421 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Universal OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 8-Lead Narrow Body SOIC (R-8) 0.1968 (5.00) ...