Datasheet MCP6V91, MCP6V91U, MCP6V92, MCP6V94 (Microchip)

FabricanteMicrochip
DescripciónThe MCP6V9x family of operational amplifiers provides input offset voltage correction for very low offset and offset drift
Páginas / Página48 / 1 — MCP6V91/1U/2/4. 10 MHz, Zero-Drift Op Amps. Features. General …
Formato / tamaño de archivoPDF / 2.9 Mb
Idioma del documentoInglés

MCP6V91/1U/2/4. 10 MHz, Zero-Drift Op Amps. Features. General Description. Package Types. MCP6V91. MCP6V91U. Typical Applications

Datasheet MCP6V91, MCP6V91U, MCP6V92, MCP6V94 Microchip

Línea de modelo para esta hoja de datos

Versión de texto del documento

link to page 17
MCP6V91/1U/2/4 10 MHz, Zero-Drift Op Amps Features General Description
• High DC Precision: The Microchip Technology Incorporated - VOS Drift: ±17 nV/°C (maximum, VDD = 5.5V) MCP6V91/1U/2/4 family of operational amplifiers - V provides input offset voltage correction for very low OS: ±9 µV (maximum) - A offset and offset drift. These devices have a gain OL: 126 dB (minimum, VDD = 5.5V) bandwidth product of 10 MHz (typical). They are - PSRR: 117 dB (minimum, VDD = 5.5V) unity-gain stable, have virtually no 1/f noise and have - CMRR: 118 dB (minimum, VDD = 5.5V) good Power Supply Rejection Ratio (PSRR) and - Eni: 0.24 µVP-P (typical), f = 0.1 Hz to 10 Hz Common Mode Rejection Ratio (CMRR). These - Eni: 0.08 µVP-P (typical), f = 0.01 Hz to 1 Hz products operate with a single supply voltage as low as • Enhanced EMI Protection: 2.4V, while drawing 1.1 mA/amplifier (typical) of quiescent current. - Electromagnetic Interference Rejection Ratio (EMIRR) at 1.8 GHz: 93 dB The MCP6V91/1U/2/4 family has enhanced EMI protection to minimize any electromagnetic • Low Power and Supply Voltages: interference from external sources. This feature makes - IQ: 1.1 mA/amplifier (typical) it wel suited for EMI-sensitive applications such as - Wide supply voltage range: 2.4V to 5.5V power lines, radio stations and mobile • Smal Packages: communications, etc. - Singles in SC70, SOT-23 The MCP6V91/1U/2/4 op amps are offered in single - Duals in MSOP-8, 2X3 TDFN (MCP6V91 and MCP6V91U), dual (MCP6V92) and - Quads in TSSOP-14 quad (MCP6V94) packages. They were designed using an advanced CMOS process. • Easy to Use: - Rail-to-rail input/output
Package Types
- Gain Bandwidth Product: 10 MHz (typical)
MCP6V91 MCP6V91U
- Unity Gain Stable SOT-23 SC70, SOT-23 • Extended Temperature Range: -40°C to +125°C VOUT 1 5 V VIN+ 1 5 V
Typical Applications
DD DD VSS 2 VSS 2 • Portable Instrumentation VIN+ 3 4 VIN– VIN– 3 4 VOUT • Sensor Conditioning
MCP6V92 MCP6V92
• Temperature Measurement MSOP 2×3 TDFN* • DC Offset Correction V 1 8 V VOUTA 1 8 VDD • Medical Instrumentation OUTA DD V 2 7 VOUTB VINA- 2 EP 7 VOUTB
Design Aids
INA– V 9 INA+ 3 6 VINB- VINA+ 3 6 VINB- • SPICE Macro Models V V 4 5 V SS 4 5 VINB+ SS INB+ • FilterLab® Software
MCP6V94
• Microchip Advanced Part Selector (MAPS) TSSOP • Analog Demonstration and Evaluation Boards V 1 14 VOUTD • Application Notes OUTA V V INA- 2 13 IND-
Related Parts
VINA+ 3 12 VIND+ • MCP6V11/1U/2/4: Zero-Drift, Low Power VDD 4 11 VSS • MCP6V31/1U/2/4: Zero-Drift, Low Power V V INB+ 5 10 INC+ • MCP6V61/1U/2/4: Zero-Drift, 1 MHz VINB- 6 9 VINC- • MCP6V71/1U/2/4: Zero-Drift, 2 MHz VOUTB 7 8 VOUTC • MCP6V81/1U/2/4: Zero-Drift, 5 MHz * Includes Exposed Thermal Pad (EP); see Table 3-1.  2015-2016 Microchip Technology Inc. DS20005434B-page 1 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