Bidirectional, Zero-Drift, Current Sense Amplifier
页数 / 页
16 /6 — AD8418. Data Sheet. TYPICAL PERFORMANCE CHARACTERISTICS. µ ( E. B) d. …
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PDF / 301 Kb
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英语
AD8418. Data Sheet. TYPICAL PERFORMANCE CHARACTERISTICS. µ ( E. B) d. –10. N ( AI. –20. T V E. –30. OFFS. –40. –50. –60. –70. –25. 110. 125. 10k. 100k. 10M
AD8418Data SheetTYPICAL PERFORMANCE CHARACTERISTICS104083062010V)4µ ( E02AGB) d–10LT0ON ( AI–20T V E–2G–30–4OFFS–40–6–50–8–60–10–70–40–25–105203550658095110125 003 1k10k100k1M10M 006 TEMPERATURE (°C) 1546- 1 FREQUENCY (Hz) 1546- 1 Figure 3. Typical Offset Drift vs. Temperature Figure 6. Typical Small Signal Bandwidth (VOUT = 200 mV p-p) 110201810016%)14R (9012B)RROdE1080UTRR (P8CMUT O670L A T4O T602050–2101001k10k100k1M 004 0510152025303540 007 FREQUENCY (Hz) 1546- DIFFERENTIAL INPUT VOLTAGE (mV) 1546- 1 1 Figure 4. Typical CMRR vs. Frequency Figure 7. Total Output Error vs. Differential Input Voltage 5000.5 VNORMALIZED AT 25°CS = 5V4000.4300mA)0.3IN ()200P0.2/VUT+INV µ1000.1NPR (R I–IN0E0RROP–100NT –0.1N E AI G –200–0.2CURRE–300–0.3AS BI–400–0.4–500–0.5–40–25–105203550658095110125–4 0 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80 005 008 TEMPERATURE (°C)V 1546- CM (V) 1546- 1 1 Figure 5. Typical Gain Error vs. Temperature Figure 8. Bias Current per Input Pin vs. Common-Mode Voltage (VCM) Rev. 0 | Page 6 of 16 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 VS Referenced Output 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 Outline Dimensions Ordering Guide Automotive Products