AD8551/AD8552/AD8554Data SheetTYPICAL PERFORMANCE CHARACTERISTICS180180VSY = 2.7VVSY = 5V160VCM = 1.35V160VCM = 2.5VTA = 25°CTA = 25°C140140RSRSIE 120IE 120IFIFLLPP100100AMAMFF8080R OR OBE60BE60NUMNUM4040202000–2.5–1.5–0.50.51.52.5 007 –2.5–1.5–0.50.51.52.5 010 OFFSET VOLTAGE (µV)OFFSET VOLTAGE (µV) 01101- 01101- Figure 7. Input Offset Voltage Distribution at 2.7 V Figure 10. Input Offset Voltage Distribution at 5 V 5012VSY = 5VVSY = 5VT40A = –40°C, +25°C, +85°CVCM = 2.5V10T+85°CA = –40°C TO +125°CA)30p (RS IE8NT20IF L PAMCURRE106FAS+25°CR OBI0BEUT4–40°CINP –10NUM2–20–300012345 008 0123456 011 INPUT COMMON-MODE VOLTAGE (V)INPUT OFFSET DRIFT (nV/°C) 01101- 01101- Figure 8. Input Bias Current vs. Common-Mode Voltage Figure 11. Input Offset Voltage Drift Distribution at 5 V 150010kVSY = 5VVSY = 5VTA = 125°CTA = 25°C10001kA) p500)(V mNT(1000GECURREOLTAAS–500SOURCET V10BIUUTTP–1000SINKINPOU1–1500–20000.1012345 009 0.00010.0010.010.1110100 012 INPUT COMMON-MODE VOLTAGE (V)LOAD CURRENT (mA) 01101- 01101- Figure 9. Input Bias Current vs. Common-Mode Voltage Figure 12. Output Voltage to Supply Rail vs. Load Current at 5 V Rev. F | Page 6 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PIN CONFIGURATIONS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL CHARACTERISTICS ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS FUNCTIONAL DESCRIPTION AMPLIFIER ARCHITECTURE BASIC AUTO-ZERO AMPLIFIER THEORY Auto-Zero Phase Amplification Phase HIGH GAIN, CMRR, PSRR MAXIMIZING PERFORMANCE THROUGHPROPER LAYOUT 1/f NOISE CHARACTERISTICS INTERMODULATION DISTORTION BROADBAND AND EXTERNAL RESISTOR NOISE CONSIDERATIONS OUTPUT OVERDRIVE RECOVERY INPUT OVERVOLTAGE PROTECTION OUTPUT PHASE REVERSAL CAPACITIVE LOAD DRIVE POWER-UP BEHAVIOR APPLICATIONS INFORMATION A 5 V PRECISION STRAIN GAGE CIRCUIT 3 V INSTRUMENTATION AMPLIFIER A HIGH ACCURACY THERMOCOUPLE AMPLIFIER PRECISION CURRENT METER PRECISION VOLTAGE COMPARATOR OUTLINE DIMENSIONS ORDERING GUIDE