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MCP6421 bảng dữ liệu(PDF) 3 Page - Microchip Technology |
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MCP6421 bảng dữ liệu(HTML) 3 Page - Microchip Technology |
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3 / 34 page  2013 Microchip Technology Inc. DS25165A-page 3 MCP6421 1.0 ELECTRICAL CHARACTERISTICS 1.1 Absolute Maximum Ratings † VDD – VSS ......................................................................................................................................................................................... 6.5V Current at Analog Input Pins (VIN+, VIN-) ....................................................................................................................................... ±2 mA Analog Inputs (VIN+, VIN-)†† ............................................................................................................................VSS – 1.0V to VDD + 1.0V All Other Inputs and Outputs ...........................................................................................................................VSS – 0.3V to VDD + 0.3V Difference Input Voltage ........................................................................................................................................................|VDD – VSS| Output Short-Circuit Current ................................................................................................................................................. Continuous Current at Input Pins ...................................................................................................................................................................... ±2 mA Current at Output and Supply Pins ............................................................................................................................................. ±30 mA Storage Temperature ..................................................................................................................................................... -65°C to +150°C Maximum Junction Temperature (TJ)........................................................................................................................................... +150°C ESD Protection on All Pins (HBM; MM) 4kV; 400V † Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended peri- ods may affect device reliability. †† See Section 4.1.2 “Input Voltage Limits”. 1.2 Specifications TABLE 1-1: DC ELECTRICAL SPECIFICATIONS Electrical Characteristics: Unless otherwise indicated, TA= +25°C, VDD = +1.8V to +5.5V, VSS= GND, VCM = VDD/2, VOUT =VDD/2, VL =VDD/2, RL = 100 k to VL and CL = 30 pF (refer to Figure 1-1). Parameters Sym Min Typ Max Units Conditions Input Offset Input Offset Voltage VOS -1.0 — 1.0 mV VDD = 3.0V; VCM =VDD/ 4 Input Offset Drift with Temperature V OS/TA —±3.0— µV/°C TA= -40°C to +125°C, VCM = VSS Power Supply Rejection Ratio PSRR 75 90 — dB VCM = VSS Input Bias Current and Impedance Input Bias Current IB —±1 50 pA —20— pA TA = +85°C —800 — pA TA = +125°C Input Offset Current IOS —±1 — pA Common Mode Input Impedance ZCM —1013||12 — ||pF Differential Input Impedance ZDIFF —1013||12 — |pF Common Mode Common Mode Input Voltage Range VCMR VSS -0.3 — VDD +0.3 V Common Mode Rejection Ratio CMRR 75 90 — dB VDD = 5.5V VCM = -0.3V to 5.8V 70 85 — dB VDD = 1.8V VCM = -0.3V to 2.1V |
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