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MCP621 数据表(PDF) 5 Page - Microchip Technology |
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MCP621 数据表(HTML) 5 Page - Microchip Technology |
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5 / 44 page  © 2009 Microchip Technology Inc. DS22188A-page 5 MCP621/2/5 CAL/CS Input Current, Low ICSL —0— nA CAL/CS = 0V CAL/CS High Specifications CAL/CS Logic Threshold, High VIH 0.8VDD VDD V CAL/CS Input Current, High ICSH — 0.7 — µA CAL/CS = VDD GND Current ISS -3.5 -1.8 — µA Single, CAL/CS = VDD = 2.5V ISS -8 -4 — µA Single, CAL/CS = VDD = 5.5V ISS -5 -2.5 — µA Dual, CAL/CS = VDD = 2.5V ISS -10 -5 — µA Dual, CAL/CS = VDD = 5.5V CAL/CS Internal Pull Down Resistor RPD —5— M Ω Amplifier Output Leakage IO(LEAK) — 50 — nA CAL/CS = VDD, TA = 125°C POR Dynamic Specifications VDD Low to Amplifier Off Time (output goes High-Z) tPOFF — 200 — ns G = +1 V/V, VL = VSS, VDD = 2.5V to 0V step to VOUT = 0.1 (2.5V) VDD High to Amplifier On Time (including calibration) tPON 100 200 300 ms G = +1 V/V, VL = VSS, VDD = 0V to 2.5V step to VOUT = 0.9 (2.5V) CAL/CS Dynamic Specifications CAL/CS Input Hysteresis VHYST — 0.25 — V CAL/CS Setup Time (between CAL/CS edges) tCSU 1— — µs G = +1 V/V, VL = VSS (Notes 2, 3) CAL/CS = 0.8VDD to VOUT = 0.1 (VDD/2) CAL/CS High to Amplifier Off Time (output goes High-Z) tCOFF — 200 — ns G = +1 V/V, VL = VSS, CAL/CS = 0.8VDD to VOUT = 0.1 (VDD/2) CAL/CS Low to Amplifier On Time (including calibration) tCON —5 8 ms G = +1 V/V, VL = VSS, CAL/CS = 0.2VDD to VOUT = 0.9 (VDD/2) DIGITAL ELECTRICAL SPECIFICATIONS (CONTINUED) Electrical Characteristics: Unless otherwise indicated, TA = +25°C, VDD = +2.5V to +5.5V, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2, VL = VDD/2, RL = 2 kΩ to VL, CL = 50 pF and CAL/CS =VSS (refer to Figure 1-1 and Figure 1-2). Parameters Sym Min Typ Max Units Conditions Note 1: The MCP622 has its CAL/CS input internally pulled down to VSS (0V). 2: This time ensures that the internal logic recognizes the edge. However, for the rising edge case, if CAL/CS is raised before the calibration is complete, the calibration will be aborted and the part will return to low power mode. 3: For the MCP625 dual, there is an additional constraint. CALA/CSA and CALB/CSB can be toggled simultaneously (within a time much smaller than tCSU) to make both op amps perform the same function simultaneously. If they are toggled independently, then CALA/CSA (CALB/CSB) cannot be allowed to toggle while op amp B (op amp A) is in calibration mode; allow more than the maximum tCON time (8 ms) before the other side is toggled. TEMPERATURE SPECIFICATIONS Electrical Characteristics: Unless otherwise indicated, all limits are specified for: VDD = +2.5V to +5.5V, VSS = GND. Parameters Sym Min Typ Max Units Conditions Temperature Ranges Specified Temperature Range TA -40 — +125 °C Operating Temperature Range TA -40 — +125 °C (Note 1) Storage Temperature Range TA -65 — +150 °C Thermal Package Resistances Thermal Resistance, 8L-3x3 DFN θJA —60— °C/W (Note 2) Thermal Resistance, 8L-SOIC θJA — 140.9 — °C/W Thermal Resistance, 10L-3x3 DFN θJA —57— °C/W (Note 2) Thermal Resistance, 10L-MSOP θJA — 202 — °C/W Note 1: Operation must not cause TJ to exceed Maximum Junction Temperature specification (150°C). 2: Measured on a standard JC51-7, four layer printed circuit board with ground plane and vias. |
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