Datasheet AD8551, AD8552, AD8554 (Analog Devices) - 9

Data Sheet AD8551/AD8552/AD8554 45 VSY = ±1.35V VSY = ±2.5V CL = 50pF 40 RL = 2kΩ R ) T L = ∞ A = 25°C % AV = 1 35 OOT ( H 30 S R E 25 L OV A 20 IGN 15 +OS –OS LL S A M 10 S 5
025
5µs 50mV
01101-
010 100 1k 10k
028
CAPACITANCE (pF)
01101- Figure 25. Smal Signal Transient Response at 2.7 V Figure 28. Small Signal Overshoot vs. Load Capacitance at 5 V
VSY = ±2.5V CL = 50pF 0V RL = ∞ AV = 1 VIN VSY = ±2.5V VIN = –200mV p-p (RET TO GND) CL = 0pF RL = 10kΩ AV = –100 VOUT 0V
026
5µs 50mV 20µs 1V
01101-
BOTTOM SCALE: 1V/DIV
029
TOP SCALE: 200mV/DIV
01101- Figure 26. Smal Signal Transient Response at 5 V Figure 29. Positive Overvoltage Recovery
50 VSY = ±1.35V 45 RL = 2kΩ VIN ) TA = 25°C % 40 0V 35 OOT ( H S VSY = ±2.5V R 30 E VIN = 200mV p-p (RET TO GND) 25 +OS 0V L OV CL = 0pF A 20 RL = 10kΩ IGN AV = –100 –OS 15 LL S A M 10 S VOUT 5 20µs 1V 010 100 1k 10k
027
BOTTOM SCALE: 1V/DIV
030
CAPACITANCE (pF) TOP SCALE: 200mV/DIV
01101- 01101- Figure 27. Small Signal Overshoot vs. Load Capacitance at 2.7 V Figure 30. Negative Overvoltage Recovery Rev. F | Page 9 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