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MCP651 データシート(PDF) 17 Page - Microchip Technology |
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MCP651 データシート(HTML) 17 Page - Microchip Technology |
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17 / 44 page ![]() © 2009 Microchip Technology Inc. DS22146A-page 17 MCP651/2/5 Note: Unless otherwise indicated, TA = +25°C, VDD = +2.5V to 5.5V, VSS = GND, VCM =VDD/3, VOUT =VDD/2, VL =VDD/2, RL =1kΩ to VL, CL = 20 pF, and CAL/CS =VSS. 2.6 Calibration and Chip Select Response FIGURE 2-44: CAL/CS Current vs. Power Supply Voltage. FIGURE 2-45: CAL/CS Voltage, Output Voltage and Supply Current (for Side A) vs. Time with VDD =2.5V. FIGURE 2-46: CAL/CS Voltage, Output Voltage and Supply Current (for Side A) vs. Time with VDD =5.5V. FIGURE 2-47: CAL/CS Hysteresis vs. Ambient Temperature. FIGURE 2-48: CAL/CS Turn On Time vs. Ambient Temperature. FIGURE 2-49: CAL/CS’s Pull-down Resistor (RPD) vs. Ambient Temperature. 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 0.00.5 1.01.5 2.02.5 3.0 3.5 4.04.5 5.0 5.5 Power Supply Voltage (V) CAL/CS = VDD -1 0 1 2 3 4 5 6 7 8 9 01234 56789 10 Time (ms) -12 -10 -8 -6 -4 -2 0 2 4 6 8 VDD = 2.5V G = 1 VL = 0V Op Amp turns on CAL/CS Op Amp turns off Calibration starts IDD VOUT -1 0 1 2 3 4 5 6 7 8 9 10 11 0 1 2 3456 789 10 Time (ms) -14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10 VDD = 5.5V G = 1 VL = 0V CAL/CS Op Amp turns off Calibration starts IDD VOUT Op Amp turns on 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 -50 -25 0 25 50 75 100 125 Ambient Temperature (°C) VDD = 2.5V VDD = 5.5V 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 -50 -25 0 25 50 75 100 125 Ambient Temperature (°C) 0 1 2 3 4 5 6 7 8 -50 -25 0 255075 100 125 Ambient Temperature (°C) Representative Part |
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