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MCP621T Scheda tecnica(PDF) 17 Page - Microchip Technology |
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MCP621T Scheda tecnica(HTML) 17 Page - Microchip Technology |
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17 / 44 page ![]() © 2009 Microchip Technology Inc. DS22188A-page 17 MCP621/2/5 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 =2kΩ to VL, CL = 50 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 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Power Supply Voltage (V) CAL/CS = VDD -1 0 1 2 3 4 5 6 7 8 0 2 4 6 8 10 12 14 16 Time (ms) -12 -10 -8 -6 -4 -2 0 2 4 6 VDD = 2.5V G = 1 VL = 0V Op Amp turns on CAL/CS Op Amp turns off Calibration starts IDD VOUT -2 0 2 4 6 8 10 12 14 16 02 46 8 10 12 14 16 Time (ms) -12 -10 -8 -6 -4 -2 0 2 4 6 VDD = 5.5V G = 1 VL = 0V Op Amp turns on CAL/CS Op Amp turns off Calibration starts IDD VOUT 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 -50 -25 0 255075 100 125 Ambient Temperature (°C) VDD = 2.5V VDD = 5.5V 0 1 2 3 4 5 6 7 8 -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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