AD8571ARMZ-REEL Analog Devices Inc, AD8571ARMZ-REEL Datasheet
AD8571ARMZ-REEL
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AD8571ARMZ-REEL Summary of contents
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FEATURES Low offset voltage: 1 μV Input offset drift: 0.005 μV/°C Rail-to-rail input and output swing 5 V/2.7 V single-supply operation High gain: 145 dB typical CMRR: 140 dB typical PSRR: 130 dB typical Ultralow input bias current ...
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AD8571/AD8572/AD8574 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Pin Configurations ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... Electrical Characteristics...................................................... 3 2.7 V Electrical Characteristics................................................... 4 Absolute Maximum Ratings............................................................ 5 Thermal Characteristics .............................................................. ...
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SPECIFICATIONS 5 V ELECTRICAL CHARACTERISTICS 2 2 25°C, unless otherwise noted Table 1. Parameter INPUT CHARACTERISTICS Offset Voltage Input Bias Current AD8571/AD8574 AD8572 Input ...
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AD8571/AD8572/AD8574 2.7 V ELECTRICAL CHARACTERISTICS Table 2. Parameter INPUT CHARACTERISTICS Offset Voltage Input Bias Current AD8571/AD8574 AD8572 Input Offset Current AD8571/AD8574 AD8572 Input Voltage ...
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ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Supply Voltage Input Voltage 1 Differential Input Voltage ESD (Human Body Model) Output Short-Circuit Duration to GND Storage Temperature Range Operating Temperature Range Junction Temperature Range Lead Temperature (Soldering, 60 sec) 1 Differential input ...
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AD8571/AD8572/AD8574 TYPICAL PERFORMANCE CHARACTERISTICS 180 160 140 120 100 –2.5 –1.5 –0.5 0.5 OFFSET VOLTAGE (µV) Figure 7. Input Offset Voltage Distribution –40°C, +25°C, +85° ...
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25° 100 SINK SOURCE 10 1 0.1 0.0001 0.001 0.01 0.1 1 LOAD CURRENT (mA) Figure 13. Output Voltage to Supply Rail vs. Load Current 1000 ...
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AD8571/AD8572/AD8574 100 –10 –20 –30 –40 100 1k 10k 100k FREQUENCY (Hz) Figure 19. Closed-Loop Gain vs. Frequency ...
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V = ±1.35V 50pF L ∞ 5µs 50mV Figure 25. Small Signal Transient Response V = ±2. 50pF L ∞ ...
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AD8571/AD8572/AD8574 V = ±2. 2kΩ –100 60mV p-p IN 200µs Figure 31. No Phase Reversal 140 V = 2.7V S 120 100 100 1k 10k 100k ...
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V 5 THD + N < 1% 4.5 T 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 100 1k 10k 100k FREQUENCY (Hz) Figure 37. Maximum Output Swing vs. Frequency 1sec ...
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AD8571/AD8572/AD8574 112 FREQUENCY (kHz) Figure 43. Voltage Noise Density from kHz 210 180 150 120 FREQUENCY (Hz) Figure 44. Voltage Noise ...
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–20 –40 –60 –80 –100 –75 –50 – TEMPERATURE (°C) Figure 47. Output Short-Circuit Current vs. Temperature 250 V = 2.7V 225 S 200 175 150 ...
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AD8571/AD8572/AD8574 FUNCTIONAL DESCRIPTION The AD8571/AD8572/AD8574 are CMOS amplifiers that achieve their high degree of precision through random frequency auto-zero stabilization. The autocorrection topology allows the AD857x to maintain its low offset voltage over a wide temperature range, and the randomized ...
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AUTO-ZERO PHASE In this phase, all ΦA switches are closed, and all ΦB switches X are open. Here, the nulling amplifier is taken out of the gain loop by shorting its two inputs together. Of course, there is a degree ...
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AD8571/AD8572/AD8574 Therefore ≈ OSA OSB EFF B A Thus, the offset voltages of both the primary and nulling amplifiers are reduced by the gain factor B input offset voltage from several millivolts down to ...
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NOISE CHARACTERISTICS Another advantage of auto-zero amplifiers is their ability to cancel flicker noise. Flicker noise, also known as 1/f noise, is noise inherent in the physics of semiconductor devices and increases 3 dB for every octave decrease in ...
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AD8571/AD8572/AD8574 BROADBAND AND EXTERNAL RESISTOR NOISE CONSIDERATIONS The total broadband noise output from any amplifier is primarily a function of three types of noise: input voltage noise from the amplifier, input current noise from the amplifier, and Johnson noise from ...
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CAPACITIVE LOAD DRIVE The AD857x have excellent capacitive load driving capabilities and can safely drive from a single 5 V supply. Although the device is stable, capacitive loading limits the bandwidth of the amplifier. Capacitive loads ...
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AD8571/AD8572/AD8574 APPLICATIONS INFORMATION 5 V PRECISION STRAIN GAGE CIRCUIT The extremely low offset voltage of the AD8572 makes it an ideal amplifier for any application requiring accuracy with high gains, such as a weigh scale or strain gage. Figure 63 ...
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HIGH ACCURACY THERMOCOUPLE AMPLIFIER Figure 66 shows a K-type thermocouple amplifier configuration with cold-junction compensation. Even from supply, the AD8571 can provide enough accuracy to achieve a resolution of better than 0.02°C from 0°C to 500°C. D1 ...
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AD8571/AD8572/AD8574 OUTLINE DIMENSIONS 3.20 3.00 2.80 5. 3.20 4.90 3.00 4.65 1 2.80 4 PIN 1 IDENTIFIER 0.65 BSC 0.95 15° MAX 0.85 1.10 MAX 0.75 0.15 6° 0.40 0.05 0° 0.25 COPLANARITY 0.10 COMPLIANT TO JEDEC STANDARDS ...
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... AD8571ARZ −40°C to +125°C AD8571ARZ-REEL −40°C to +125°C AD8571ARZ-REEL7 −40°C to +125°C AD8571ARMZ −40°C to +125°C AD8571ARMZ-REEL −40°C to +125°C AD8572AR −40°C to +125°C AD8572AR-REEL −40°C to +125°C AD8572AR-REEL7 −40°C to +125°C AD8572ARZ − ...
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AD8571/AD8572/AD8574 NOTES ©1999–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D01104-0-2/11(E) Rev Page ...