Datasheet ADA4530-1 (Analog Devices) - 27

ADA4530-1 Data Sheet GUARD AMPLIFIER
TA = 25°C, unless otherwise noted.
120 100 VSY = 4.5V VCM = VSY/2 100 590 CHANNELS 50 TA = 25°C RS x = –3.68µV IE 80 σ = 12.35µV IF L P 0 AM 60 F (µV) OS R O V –50 BE 40 NUM –100 V 20 SY = 4.5V VCM = VSY/2 574 CHANNELS 0 0 0 0 0 0 0 0 0 0 0 –150
1
10 20 30 40 50 60 70 80 90 0
094
–8 –7 –6 –5 –4 –3 –2 –1 10
09
–50 –25 0 25 50 75 100 125 –100 –9
5-
VOS (µV)
340
TEMPERATURE (°C)
1 13405- Figure 87. Input Offset Voltage Distribution, VSY = 4.5 V Figure 90. Input Offset Voltage (VOS) vs. Temperature, VSY = 4.5 V
120 100 VSY = 10V VCM = VSY/2 100 590 CHANNELS 50 TA = 25°C RS x = –3.8µV IE 80 σ = 12.4µV IF L P 0 AM 60 (µV) F O OS R V –50 BE 40 NUM –100 V 20 SY = 10V VCM = VSY/2 574 CHANNELS 0 0 0 0 0 0 0 0 0 0 0 0 –150 00 10 20 30 40 50 60 70 80 90
92 095
–9 –8 –7 –6 –5 –4 –3 –2 –1 10
0
–50 –25 0 25 50 75 100 125 –1
5-
VOS (µV)
340
TEMPERATURE (°C)
1 13405- Figure 88. Input Offset Voltage Distribution, VSY = 10 V Figure 91. Input Offset Voltage (VOS) vs. Temperature, VSY = 10 V
120 100 VSY = 16V VCM = VSY/2 100 590 CHANNELS 50 TA = 25°C RS x = –3.86µV IE 80 σ = 12.2µV IF L P 0 AM 60 F (µV) OS R O V –50 BE 40 NUM –100 V 20 SY = 16V VCM = VSY/2 574 CHANNELS 0 0 0 0 0 0 0 0 0 0 0 –150
3
10 20 30 40 50 60 70 80 90 0 –8 –7 –6 –5 –4 –3 –2 –1 10
09
–50 –25 0 25 50 75 100 125
096
–100 –9
5-
VOS (µV)
340
TEMPERATURE (°C)
1 13405- Figure 89. Input Offset Voltage Distribution, VSY = 16 V Figure 92. Input Offset Voltage (VOS) vs. Temperature, VSY = 16 V Rev. A | Page 26 of 50 Document Outline FEATURES APPLICATIONS PIN CONNECTION DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS 5 V NOMINAL ELECTRICAL CHARACTERISTICS 10 V NOMINAL ELECTRICAL CHARACTERISTICS 15 V NOMINAL ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS MAIN AMPLIFIER, DC PERFORMANCE MAIN AMPLIFIER, AC PERFORMANCE GUARD AMPLIFIER THEORY OF OPERATION ESD STRUCTURE INPUT STAGE GAIN STAGE OUTPUT STAGE GUARD BUFFER APPLICATIONS INFORMATION INPUT PROTECTION SINGLE-SUPPLY AND RAIL-TO-RAIL OUTPUT CAPACITIVE LOAD STABILITY EMI REJECTION RATIO HIGH IMPEDANCE MEASUREMENTS INPUT BIAS CURRENT INPUT RESISTANCE INPUT OFFSET VOLTAGE INSULATION RESISTANCE GUARDING DIELECTRIC RELAXATION HUMIDITY EFFECTS CONTAMINATION CLEANING AND HANDLING SOLDER PASTE SELECTION CURRENT NOISE CONSIDERATIONS LAYOUT GUIDELINES PHYSICAL IMPLEMENTATION OF GUARDING TECHNIQUES GUARD RING GUARD PLANE VIA FENCE CABLES AND CONNECTORS ELECTROSTATIC INTERFERANCE PHOTODIODE INTERFACE DC ERROR ANALYSIS AC ERROR ANALYSIS NOISE ANALYSIS DESIGN RECOMMENDATIONS DESIGN EXAMPLE POWER SUPPLY RECOMMENDATIONS POWER SUPPLY CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE