Datasheet MCP6V91, MCP6V91U, MCP6V92, MCP6V94 (Microchip) - 9

ManufacturerMicrochip
DescriptionThe MCP6V9x family of operational amplifiers provides input offset voltage correction for very low offset and offset drift
Pages / Page48 / 9 — MCP6V91/1U/2/4. Note:. 160. 500. 155. Typical Gains. = 5.5 V. 400. 150. T …
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MCP6V91/1U/2/4. Note:. 160. 500. 155. Typical Gains. = 5.5 V. 400. 150. T = +125 ºC. 300. Input Bias Current. 145. PSRR. 200. (dB) 140. Currents. 100. 135

MCP6V91/1U/2/4 Note: 160 500 155 Typical Gains = 5.5 V 400 150 T = +125 ºC 300 Input Bias Current 145 PSRR 200 (dB) 140 Currents 100 135

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Text Version of Document

MCP6V91/1U/2/4 Note:
Unless otherwise indicated, TA = +25°C, VDD = +2.4V to 5.5V, VSS = GND, VCM = VDD/3, VOUT = VDD/2, VL = VDD/2, RL = 10 kΩ to VL and CL = 30 pF.
160 500 155 Typical Gains V = 5.5 V 400 DD 150 T = +125 ºC A 300 Input Bias Current 145 PSRR 200 (dB) 140 Currents 100 135 fset 130 0 PSRR 125 -100 (pA) Input Offset Current RR, 120 CMRR at V = 5.5V -200 DD CM 115 CMRR at V = 2.4V DD -300 110 Bias and Of -400 105 -500 100 Input 0 5 0 5 0 5 0 5 0 5 0 5 0 -50 -25 0 25 50 75 100 125 -0.5 0. 0. 1. 1. 2. 2. 3. 3. 4. 4. 5. 5. 6. Ambient Temperature (°C) Input Common Mode Voltage (V) FIGURE 2-13:
CMRR and PSRR vs.
FIGURE 2-16:
Input Bias and Offset Ambient Temperature. Currents vs. Common-Mode Input Voltage with TA = +125°C.
160 1n 155 V = 5.5 V DD 150 145 100p 140 V = 2.4V DD V = 5.5V DD 135 130 10p Input Offset Current 125 120 Offset Currents (A) Input Bias Current 115 1p 110 DC Open-Loop Gain (dB) 105 Typical Gains 0.1p 100 Input Bias, -50 -25 0 25 50 75 100 125 25 35 45 55 65 75 85 95 105 115 125 Ambient Temperature (°C) Ambient Temperature (°C) FIGURE 2-14:
DC Open-Loop Gain vs.
FIGURE 2-17:
Input Bias and Offset Ambient Temperature. Currents vs. Ambient Temperature with VDD = 5.5V.
500 1m 400 V = 5.5 V DD T = +85 ºC 100µ 300 A 200 10µ tude (A) Input Bias Current 100 ) 0 Offset Currents 100n (pA -100 Input Offset Current T = +125°C A -200 10n T = +85°C A T = +25°C -300 A 1n T = - 40°C A -400 put Current Magni 100p -500 In Input Bias and .5 10p -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 6.0 -1.0 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.0 Input Common Mode Voltage (V) Input Voltage (V) FIGURE 2-15:
Input Bias and Offset
FIGURE 2-18:
Input Bias Current vs. Input Currents vs. Common-Mode Input Voltage with Voltage (Below VSS). TA = +85°C.  2015-2016 Microchip Technology Inc. DS20005434B-page 9 Document Outline 10 MHz, Zero-Drift Op Amps Features Typical Applications Design Aids Related Parts General Description Package Types Typical Application Circuit 1.0 Electrical Characteristics 1.1 Absolute Maximum Ratings 1.2 Specifications TABLE 1-1: DC Electrical Specifications TABLE 1-2: AC Electrical Specifications TABLE 1-3: Temperature Specifications 1.3 Timing Diagrams FIGURE 1-1: Amplifier Start-Up. FIGURE 1-2: Offset Correction Settling Time. FIGURE 1-3: Output Overdrive Recovery. 1.4 Test Circuits FIGURE 1-4: AC and DC Test Circuit for Most Noninverting Gain Conditions. FIGURE 1-5: AC and DC Test Circuit for Most Inverting Gain Conditions. FIGURE 1-6: Test Circuit for Dynamic Input Behavior. 2.0 Typical Performance Curves 2.1 DC Input Precision FIGURE 2-1: Input Offset Voltage. FIGURE 2-2: Input Offset Voltage Drift. FIGURE 2-3: Input Offset Voltage Quadratic Temperature Coefficient. FIGURE 2-4: Input Offset Voltage vs. Power Supply Voltage with VCM = VCML. FIGURE 2-5: Input Offset Voltage vs. Power Supply Voltage with VCM = VCMH. FIGURE 2-6: Input Offset Voltage vs. Output Voltage with VDD = 2.4V. FIGURE 2-7: Input Offset Voltage vs. Output Voltage with VDD = 5.5V. FIGURE 2-8: Input Offset Voltage vs. Common-Mode Voltage with VDD = 2.4V. FIGURE 2-9: Input Offset Voltage vs. Common-Mode Voltage with VDD = 5.5V. FIGURE 2-10: Common-Mode Rejection Ratio. FIGURE 2-11: Power Supply Rejection Ratio. FIGURE 2-12: DC Open-Loop Gain. FIGURE 2-13: CMRR and PSRR vs. Ambient Temperature. FIGURE 2-14: DC Open-Loop Gain vs. Ambient Temperature. FIGURE 2-15: Input Bias and Offset Currents vs. Common-Mode Input Voltage with TA = +85°C. FIGURE 2-16: Input Bias and Offset Currents vs. Common-Mode Input Voltage with TA = +125°C. FIGURE 2-17: Input Bias and Offset Currents vs. Ambient Temperature with VDD = 5.5V. FIGURE 2-18: Input Bias Current vs. Input Voltage (Below VSS). 2.2 Other DC Voltages and Currents FIGURE 2-19: Input Common-Mode Voltage Headroom (Range) vs. Ambient Temperature. FIGURE 2-20: Output Voltage Headroom vs. Output Current. FIGURE 2-21: Output Voltage Headroom vs. Ambient Temperature. FIGURE 2-22: Output Short-Circuit Current vs. Power Supply Voltage. FIGURE 2-23: Supply Current vs. Power Supply Voltage. FIGURE 2-24: Power-On Reset Trip Voltage. FIGURE 2-25: Power-On Reset Voltage vs. Ambient Temperature. 2.3 Frequency Response FIGURE 2-26: CMRR and PSRR vs. Frequency. FIGURE 2-27: Open-Loop Gain vs. Frequency with VDD = 2.4V. FIGURE 2-28: Open-Loop Gain vs. Frequency with VDD = 5.5V. FIGURE 2-29: Gain Bandwidth Product and Phase Margin vs. Ambient Temperature. FIGURE 2-30: Gain Bandwidth Product and Phase Margin vs. Common-Mode Input Voltage. FIGURE 2-31: Gain Bandwidth Product and Phase Margin vs. Output Voltage. FIGURE 2-32: Closed-Loop Output Impedance vs. Frequency with VDD = 2.2V. FIGURE 2-33: Closed-Loop Output Impedance vs. Frequency with VDD = 5.5V. FIGURE 2-34: Maximum Output Voltage Swing vs. Frequency. FIGURE 2-35: EMIRR vs. Frequency. FIGURE 2-36: EMIRR vs. Input Voltage. FIGURE 2-37: Channel-to Channel Separation vs. Frequency. 2.4 Input Noise and Distortion FIGURE 2-38: Input Noise Voltage Density and Integrated Input Noise Voltage vs. Frequency. FIGURE 2-39: Input Noise Voltage Density vs. Input Common-Mode Voltage. FIGURE 2-40: Intermodulation Distortion vs. Frequency with VCM Disturbance (see Figure 1-6). FIGURE 2-41: Intermodulation Distortion vs. Frequency with VDD Disturbance (see Figure 1-6). FIGURE 2-42: Input Noise vs. Time with 1 Hz and 10 Hz Filters and VDD = 2.4V. FIGURE 2-43: Input Noise vs. Time with 1 Hz and 10 Hz Filters and VDD = 5.5V. 2.5 Time Response FIGURE 2-44: Input Offset Voltage vs. Time with Temperature Change. FIGURE 2-45: Input Offset Voltage vs. Time at Power-Up. FIGURE 2-46: The MCP6V91/1U/2/4 Family Shows No Input Phase Reversal with Overdrive. FIGURE 2-47: Noninverting Small Signal Step Response. FIGURE 2-48: Noninverting Large Signal Step Response. FIGURE 2-49: Inverting Small Signal Step Response. FIGURE 2-50: Inverting Large Signal Step Response. FIGURE 2-51: Slew Rate vs. Ambient Temperature. FIGURE 2-52: Output Overdrive Recovery vs. Time with G = -10 V/V. FIGURE 2-53: Output Overdrive Recovery Time vs. Inverting Gain. 3.0 Pin Descriptions TABLE 3-1: Pin Function Table 3.1 Analog Outputs (VOUT, VOUTA, VOUTB, VOUTC, VOUTD) 3.2 Analog Inputs (VIN+, VIN-, VINB+, VINB-, VINC-, VINC+, VIND-, VIND+) 3.3 Power Supply Pins (VDD, VSS) 3.4 Exposed Thermal Pad (EP) 4.0 Applications 4.1 Overview of Zero-Drift Operation FIGURE 4-1: Simplified Zero-Drift Op Amp Functional Diagram. FIGURE 4-2: First Chopping Clock Phase; Equivalent Amplifier Diagram. FIGURE 4-3: Second Chopping Clock Phase; Equivalent Amplifier Diagram. 4.2 Other Functional Blocks FIGURE 4-4: Simplified Analog Input ESD Structures. FIGURE 4-5: Protecting the Analog Inputs Against High Voltages. FIGURE 4-6: Protecting the Analog Inputs Against High Currents. 4.3 Application Tips FIGURE 4-7: Output Resistor, RISO, Stabilizes Capacitive Loads. FIGURE 4-8: Recommended RISO Values for Capacitive Loads. FIGURE 4-9: Output Load. FIGURE 4-10: Amplifier with Parasitic Capacitance. 4.4 Typical Applications FIGURE 4-11: Simple Design. FIGURE 4-12: RTD Sensor. FIGURE 4-13: Offset Correction. FIGURE 4-14: Precision Comparator. 5.0 Design Aids 5.1 FilterLab® Software 5.2 Microchip Advanced Part Selector (MAPS) 5.3 Analog Demonstration and Evaluation Boards 5.4 Application Notes 6.0 Packaging Information 6.1 Package Marking Information Appendix A: Revision History Revision B (March 2016) Revision A (September 2015) Product Identification System Trademarks Worldwide Sales and Service
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