Datasheet AD8418A (Analog Devices) - 6

ManufacturerAnalog Devices
DescriptionBidirectional, Zero-Drift, Current Sense Amplifier
Pages / Page18 / 6 — AD8418A. Data Sheet. TYPICAL PERFORMANCE CHARACTERISTICS. 100. ) V. (µ E. …
RevisionE
File Format / SizePDF / 463 Kb
Document LanguageEnglish

AD8418A. Data Sheet. TYPICAL PERFORMANCE CHARACTERISTICS. 100. ) V. (µ E. LTAG. ( –10. GA –20. SET F F O. –30. –40. –50. –60. –40 –25 –10. 110 125. 10k

AD8418A Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 100 ) V (µ E LTAG ( –10 GA –20 SET F F O –30 –40 –50 –60 –40 –25 –10 110 125 10k

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Text Version of Document

AD8418A Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 100 40 90 30 80 20 ) V 70 10 (µ E 60 ) 0 dB LTAG 50 ( –10 IN VO 40 GA –20 SET F F O 30 –30 20 –40 10 –50 0
3
–60
6
–40 –25 –10 5 20 35 50 65 80 95 110 125
0 00
1k 10k 100k 1M 10M
-0 3- 3
TEMPERATURE (°C) FREQUENCY (Hz)
88 1188 11 Figure 4. Typical Offset Drift vs. Temperature Figure 7. Typical Small Signal Bandwidth (VOUT = 200 mV p-p)
110 20 18 100 16 ) (% 14 90 R 12 B) RRO (d E 10 R 80 UT R P T 8 CM U O 6 70 L TA 4 TO 60 2 0 50
4
–2 10 100 1k 10k 100k 1M
-00
0 5 10 15 20 25 30 35 40
007 83-
FREQUENCY (Hz)
11883
DIFFERENTIAL INPUT VOLTAGE (mV)
118 Figure 5. Typical CMRR vs. Frequency Figure 8. Total Output Error vs. Differential Input Voltage
400 0.5 NORMALIZED AT 25°C VS = 5V 0.4 300 A) 0.3 (m 200 IN ) P 0.2 +IN /V V 100 UT P 0.1 R IN R –IN 0 E 0 RRO P E N NT –0.1 –100 E AI G –0.2 URR –200 C –0.3 AS BI –300 –0.4 –400
5
–0.5 –40 –25 –10 5 20 35 50 65 80 95 110 125
0 08 0
–4 0 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68
1 3- 3-
TEMPERATURE (°C)
88
V
88 11
CM (V)
11 Figure 6. Typical Gain Error vs. Temperature Figure 9. Bias Current per Input Pin vs. Common-Mode Voltage (VCM) Rev. E | Page 6 of 18 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION OUTPUT OFFSET ADJUSTMENT UNIDIRECTIONAL OPERATION Ground Referenced Output Mode VS Referenced Output Mode BIDIRECTIONAL OPERATION EXTERNAL REFERENCED OUTPUT SPLITTING THE SUPPLY SPLITTING AN EXTERNAL REFERENCE APPLICATIONS INFORMATION MOTOR CONTROL 3-Phase Motor Control H-Bridge Motor Control SOLENOID CONTROL High-Side Current Sense with a Low-Side Switch High-Side Current Sense with a High-Side Switch High Rail Current Sensing PINOUT OPTION ENGINEERED FOR FMEA OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS