Datasheet AD8557 (Analog Devices) - 9

AD8557 Data Sheet 35 0.5 30 0.3 S R 25 IE IF L 0.1 P 20 ) M A (n OF A 15 I OS R –0.1 E B M U 10 N –0.3 5 0 –0.5
2
0 5 10 15 20 25 30 35 40 45 50 55 60 65
0
–50 –25 0 25 50 75 100 125 150 175
1 0 -01 3- 3
T TEMPERATURE (°C)
01
CVOS (nV/°C)
01 06 06 Figure 10. TCVOS at VSY = 2.7 V, −40°C ≤ TA ≤ +125°C Figure 13. Input Offset Current vs. Temperature
20 3.0 –40°C 2.5 ) A) A 18 µ ( (n +125°C –I NT 2.0 +25°C NT B 5V 16 CURRE 1.5 CURRE S UT IA +IB 5V B INP 1.0 UT AL IT INP 14 G DI 0.5 VSY = 5V 12 0 –50 –25 0 25 50 75 100 125 150 175
1
1 2 3 4
14 01
0 5
0 3- 3-
TEMPERATURE (°C)
01
DIGITAL INPUT VOLTAGE (V)
01 06 06 Figure 11. Input Bias Current at VPOS, VNEG vs. Temperature, Figure 14. Digital Input Current vs. Digital Input Voltage (Pin 4) VSY = 5 V, 2.7 V
100 1000 +25°C +125°C A) n ( A) 10 n ( NT NT CURRE 100 CURRE AS P –40°C BI AM UT 1 CL V INP VSY = 5V 0.1 10 0 1 2 3 4 5
13
1 2 3 4
15 0
0 5
0 3- 3-
COMMON-MODE VOLTAGE (V)
01
VCLAMP VOLTAGE (V)
01 06 06 Figure 12. Input Bias Current at VPOS, VNEG Figure 15. VCLAMP Current over Temperature at VSY = 5 V vs. Common-Mode Voltage, TA = 25°C vs. VCLAMP Voltage Rev. D | Page 8 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