Datasheet AD8557 (Analog Devices) - 9

Data Sheet AD8557 1000 120 100 +125°C A) +25°C n ( 80 HIGH GAIN +1300 NT B) d 100 60 CURRE RR ( P –40°C CM LOW GAIN +28 AM 40 CL V 20 VSY = 2.7V 10 0 0 0.5 1.0 1.5 2.0 2.5 3.0
16 19 0
0.1 1 10 100 1000
0 3- 3-
VCLAMP VOLTAGE (V)
01
FREQUENCY (kHz)
01 06 06 Figure 16. VCLAMP Current over Temperature at VSY = 2.7 V Figure 19. CMRR vs. Frequency, VSY = 5 V vs. VCLAMP Voltage
2.0 120 100 1.5 HIGH GAIN +1300 80 ) B) A d (m 1.0 60 RR ( I SY CM 40 LOW GAIN +28 0.5 20 0 0 0 1 2 3 4 5 6
7 1
0.1 1 10 100 1000
20 0 0 3- 3-
VSY (V)
01
FREQUENCY (kHz)
01 06 06 Figure 17. Supply Current (I Figure 20. CMRR vs. Frequency, V SY) vs. Supply Voltage SY = 2.7 V
3.0 150 130 2.5 CMRR GAIN +28 110 CMRR GAIN +448 2.0 ISY 5V ) B) 90 A d CMRR GAIN +1300 (m 1.5 ISY 2.7V RR ( I SY 70 CM 1.0 50 0.5 30 0 10
18
–50 –25 0 25 50 75 100 125 150 175 –50 –25 0 25 50 75 100 125 150 175
21 0 0 3- 3-
TEMPERATURE (°C)
01
TEMPERATURE (°C)
01 06 06 Figure 18. Supply Current (I Figure 21. CMRR vs. Temperature at Different Gains, V SY) vs. Temperature SY = 5 V Rev. D | Page 9 of 24 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION GAIN VALUES OPEN WIRE FAULT DETECTION SHORTED WIRE FAULT DETECTION FLOATING VPOS, VNEG, OR VCLAMP FAULT DETECTION DEVICE PROGRAMMING Digital Interface Initial State Simulation Mode Programming Mode Read Mode Sense Current Programming Procedure Determining Optimal Gain and Offset Codes OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS