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MCP6401/1R/1U/2/4/6/7/9

Features

• Low Quiescent Current: 45 µA (typical)

• Gain Bandwidth Product: 1 MHz (typical)

• Rail-to-Rail Input and Output

• Supply Voltage Range: 1.8V to 6.0V

• Unity Gain Stable

• Extended Temperature Ranges:

- -40°C to +125°C (E temp)

- -40°C to +150°C (H temp)

• No Phase Reversal

Applications

• Portable Equipment

• Battery Powered System

• Medical Instrumentation

• Automotive Electronics

• Data Acquisition Equipment

• Sensor Conditioning

• Analog Active Filters

Design Aids

• SPICE Macro Models

•FilterLab

Software

• Microchip Advanced Part Selector (MAPS)

• Analog Demonstration and Evaluation Boards

• Application Notes

Typical Application

Description

The Microchip Technology Inc.

MCP6401/1R/1U/2/4/6/7/9 family of operational

amplifiers (op amps) has low quiescent current

(45 µA, typical) and rail-to-rail input and output

operation. This family is unity gain stable and has a

gain bandwidth product of 1 MHz (typical). These

devices operate with a power supply voltage of 1.8V to

6.0V. These features make the family of op amps well

suited for single-supply, battery-powered applications.

The MCP6401/1R/1U/2/4/6/7/9 family is designed with

Microchip’s advanced CMOS process and offered in

single, dual and quad packages. The devices are

available in two extended temperature ranges (E temp

and H temp) with different package types, which

makes them well-suited for automotive and industrial

applications.

OUT

Precision Half-Wave Rectifier

MCP6401

1 MHz, 45 µA Op Amps

Summary of content (44 pages)

PAGE 1
MCP6401/1R/1U/2/4/6/7/9 1 MHz, 45 µA Op Amps Features Description • • • • • • The Microchip Technology Inc. MCP6401/1R/1U/2/4/6/7/9 family of operational amplifiers (op amps) has low quiescent current (45 µA, typical) and rail-to-rail input and output operation. This family is unity gain stable and has a gain bandwidth product of 1 MHz (typical). These devices operate with a power supply voltage of 1.8V to 6.0V.
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MCP6401/1R/1U/2/4/6/7/9 E Temp Package Types MCP6401 H Temp Package Types MCP6401R SC70-5, SOT-23-5 VOUT 1 SOT-23-5 5 VDD VOUT 1 VSS 2 5 VSS VDD 2 VIN+ 3 4 VIN– VIN+ 3 4 VIN– MCP6402 MCP6401U SOIC SOT-23-5 VOUTA 1 8 VDD VINA– 2 7 VOUTB VSS 2 6 VINB– VIN– 3 VINA+ 3 VSS 4 VIN+ 1 5 VDD 4 VOUT 5 VINB+ MCP6404 2x3 TDFN SOIC, TSSOP VOUTA 1 8 VDD VINA– 2 V – 7 VOUTB INA 2 V + 6 VINB– INA 3 5 V + VDD 4 13 VIND– VINB+ 5 10 VINC+ VINB– 6 VOUTB 7 9 VINC– VSS 4 SOT-23-5 SOIC VOUT
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MCP6401/1R/1U/2/4/6/7/9 1.0 ELECTRICAL CHARACTERISTICS 1.1 Absolute Maximum Ratings † † 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 periods may affect device reliability. VDD – VSS ...................
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MCP6401/1R/1U/2/4/6/7/9 DC ELECTRICAL SPECIFICATIONS (CONTINUED) Electrical Characteristics: Unless otherwise indicated, TA = +25°C, VDD = +1.8v to +6.0v, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2, VL = VDDD/2 and RL = 100 kΩ to VL (Refer to Figure 1-1). Temp Parts (Note 1) Parameters Sym Min Typ Max Units Common Mode Input Impedance ZCM — 1013||6 — Ω||pF E, H Differential Input Impedance ZDIFF — 1013||6 — Ω||pF E, H VCMR VSS-0.20 — VDD+0.20 V VSS-0.05 — VDD+0.
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MCP6401/1R/1U/2/4/6/7/9 DC ELECTRICAL SPECIFICATIONS (CONTINUED) Electrical Characteristics: Unless otherwise indicated, TA = +25°C, VDD = +1.8v to +6.0v, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2, VL = VDDD/2 and RL = 100 kΩ to VL (Refer to Figure 1-1). Parameters Output Short-Circuit Current Typ Max Units Temp Parts (Note 1) Conditions Sym Min ISC — ±5 — mA E, H VDD = 1.8V — ±15 — mA E, H VDD = 6.0V VDD 1.8 — 6.
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MCP6401/1R/1U/2/4/6/7/9 1.3 MCP6406/7/9 Electrical Specifications DC ELECTRICAL SPECIFICATIONS Electrical Characteristics: Unless otherwise indicated, TA = +25°C, VDD = +1.8V to +6.0V, VSS = GND, VCM = VDD/2, VOUT » VDD/2, VL = VDD/2 and RL = 100 kΩ to VL (Refer to Figure 1-1). Parameters Temp Parts (Note 1) Sym Min Typ Max Units VOS -4.5 — +4.5 mV -5.0 ±1.0 +5.0 mV +125°C E -5.5 ±1.5 +5.5 mV +150°C H — ±2.0 — µV/°C -40°C to +125°C E — ±2.
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MCP6401/1R/1U/2/4/6/7/9 DC ELECTRICAL SPECIFICATIONS (CONTINUED) Electrical Characteristics: Unless otherwise indicated, TA = +25°C, VDD = +1.8V to +6.0V, VSS = GND, VCM = VDD/2, VOUT » VDD/2, VL = VDD/2 and RL = 100 kΩ to VL (Refer to Figure 1-1). Parameters Common Mode Rejection Ratio Temp Parts (Note 1) Conditions Sym Min Typ Max Units CMRR 56 71 — dB 53 68 — dB +125°C E VCM = -0.05V to 1.85V, VDD = 1.8V 50 65 — dB +150°C H VCM = 0V to 1.8V, VDD = 1.
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MCP6401/1R/1U/2/4/6/7/9 AC ELECTRICAL SPECIFICATIONS Electrical Characteristics: Unless otherwise indicated, TA = +25°C, VDD = +1.8 to +6.0V, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2, VL = VDD/2, RL = 100 kΩ to VL and CL = 60 pF (Refer to Figure 1-1). Parameters Sym Min Typ Max Units Part Conditions AC Response Gain Bandwidth Product GBWP — 1 — MHz E, H Phase Margin PM — 65 — ° E, H Slew Rate SR — 0.5 — V/µs E, H Input Noise Voltage Eni — 3.6 — µVp-p E, H f = 0.
PAGE 9
MCP6401/1R/1U/2/4/6/7/9 2.0 TYPICAL PERFORMANCE CURVES Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
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MCP6401/1R/1U/2/4/6/7/9 Note: Unless otherwise indicated, TA = +25°C, VDD = +1.8V to +6.0V, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2, VL = VDD/2, RL = 100 kΩ to VL and CL = 60 pF. 1,000 100 10 0.1 0.1 11 100 1000 1010 100 1k Frequency (Hz) Common Mode Input Voltage (V) FIGURE 2-10: vs. Frequency. 10 f = 1 kHz VDD = 6.0 V 5 Input Offset Voltage vs. TA = +150°C TA = +125°C -100 -200 TA = +85°C TA = +25°C TA = -40°C -500 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.
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MCP6401/1R/1U/2/4/6/7/9 Note: Unless otherwise indicated, TA = +25°C, VDD = +1.8V to +6.0V, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2, VL = VDD/2, RL = 100 kΩ to VL and CL = 60 pF. 90 10000 80 75 70 65 CMRR (VDD = 6.0V) 60 CMRR (VDD = 1.8V) 55 TA = +150°C 1000 10 FIGURE 2-13: Temperature. CMRR, PSRR vs. Ambient 60 Quiescent Current (μA/Amplifier) 65 VCMR_H - VOH @ VDD = 6.0V @ VDD = 1.8V 0.0 -0.1 VCMR_L - VSS @ VDD = 1.8V VOL - VSS @ VDD = 6.0V -0.2 50 6.0 5.5 5.0 4.5 4.
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MCP6401/1R/1U/2/4/6/7/9 1.0E+00 1 1.0E+01 10 DC Open-Loop Gain (dB) FIGURE 2-19: Frequency. 150 145 140 135 130 125 120 115 110 105 100 1.0E+02 1.0E+03 1.0E+04 1.0E+05 1.0E+06 -210 1.0E+07 100 1k 10k 100k 1M 10M Frequency (Hz) R L = 10 kΩ VSS + 0.3V < V OUT < V DD - 0.3V 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Power Supply Voltage (V) 5.5 DC Open-Loop Gain (dB) FIGURE 2-21: DC Open-Loop Gain vs. Output Voltage Headroom. DS22229D-page 12 1.6 90 1.5 85 1.4 80 Phase Margin 1.3 75 1.
PAGE 13
MCP6401/1R/1U/2/4/6/7/9 Note: Unless otherwise indicated, TA = +25°C, VDD = +1.8V to +6.0V, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2, VL = VDD/2, RL = 100 kΩ to VL and CL = 60 pF. 0.9 VDD = 6.0V 0.8 Slew Rate (V/μs) Output Voltage Swing (V P-P) 10 VDD = 1.8V 1 Falling Edge, VDD = 6.0V Rising Edge, VDD = 6.0V 0.7 0.6 0.5 0.4 0.3 Falling Edge, VDD = 1.8V Rising Edge, VDD = 1.8V 0.2 0.1 0.1 100 100 1k 1000 FIGURE 2-25: Frequency.
PAGE 14
MCP6401/1R/1U/2/4/6/7/9 10000 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 VDD = 6.0V G = +1 V/V Closed Loop Output Impedance ( ) Output Voltage (V) Note: Unless otherwise indicated, TA = +25°C, VDD = +1.8V to +6.0V, VSS = GND, VCM = VDD/2, VOUT ≈ VDD/2, VL = VDD/2, RL = 100 kΩ to VL and CL = 60 pF. 1000 100 GN: 101 V/V 11 V/V 1 V/V 10 1 1.0E+01 10 Time (20 µs/div) Large Signal Non-Inverting Input, Output Voltages (V) 1.0E+05 100k 1.0E+06 1M 1.00E-04 100μ 1.00E-05 10μ 1μ 1.
PAGE 16
MCP6401/1R/1U/2/4/6/7/9 3.1 Analog Output (VOUT) The output pin is low-impedance voltage source. 3.2 Analog Inputs (VIN+, VIN-) The non-inverting and inverting inputs are highimpedance CMOS inputs with low bias currents. 3.3 Power Supply Pin (VDD, VSS) The positive power supply (VDD) is 1.8V to 6.0V higher than the negative power supply (VSS). For normal operation, the other pins are at voltages between VSS and VDD. Typically, these parts are used in a single (positive) supply configuration.
PAGE 17
MCP6401/1R/1U/2/4/6/7/9 4.0 APPLICATION INFORMATION The MCP6401/1R/1U/2/4/6/7/9 family of op amps is manufactured using Microchip’s state-of-the-art CMOS process and is specifically designed for low-power, high-precision applications. 4.1 VDD D1 D2 U1 V1 VOUT Rail-to-Rail Input 4.1.1 MCP640x V2 PHASE REVERSAL The MCP6401/1R/1U/2/4/6/7/9 op amps are designed to prevent phase reversal when the input pins exceed the supply voltages.
PAGE 18
MCP6401/1R/1U/2/4/6/7/9 4.2 Rail-to-Rail Output The output voltage range of the MCP6401/1R/1U/2/4/6/7/9 op amps is VSS + 20 mV (minimum) and VDD – 20 mV (maximum) when RL = 10 kΩ is connected to VDD/2 and VDD = 6.0V. Refer to Figures 2-26 and 2-27 for more information. 4.3 4.4 Capacitive Loads Driving large capacitive loads can cause stability problems for voltage feedback op amps. As the load capacitance increases, the feedback loop’s phase margin decreases and the closed-loop bandwidth is reduced.
PAGE 19
MCP6401/1R/1U/2/4/6/7/9 4.6 PCB Surface Leakage 4.7 In applications where low input bias current is critical, Printed Circuit Board (PCB) surface leakage effects need to be considered. Surface leakage is caused by humidity, dust or other contamination on the board. Under low humidity conditions, a typical resistance between nearby traces is 1012Ω. A 5V difference would cause 5 pA of current to flow; which is greater than the MCP6401/1R/1U/2/4/6/7/9 family’s bias current at +25°C (±1.0 pA, typical).
PAGE 20
MCP6401/1R/1U/2/4/6/7/9 4.7.2 BATTERY CURRENT SENSING The MCP6401/1R/1U/2/4/6/7/9 op amps’ Common Mode Input Range, which goes 0.3V beyond both supply rails, supports their use in high-side and lowside battery current sensing applications. The low quiescent current (45 µA, typical) helps prolong battery life, and the rail-to-rail output supports detection of low currents. Figure 4-9 shows a high-side battery current sensor circuit. The 10Ω resistor is sized to minimize power losses.
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MCP6401/1R/1U/2/4/6/7/9 5.0 DESIGN AIDS Microchip provides the basic design tools needed for the MCP6401/1R/1U/2/4/6/7/9 family of op amps. 5.1 SPICE Macro Model The latest SPICE macro model for the MCP6401/1R/1U/2/4/6/7/9 op amp is available on the Microchip web site at www.microchip.com. The model was written and tested in official Orcad (Cadence) owned PSPICE. For other simulators, translation may be required. The model covers a wide aspect of the op amp's electrical specifications.
PAGE 22
MCP6401/1R/1U/2/4/6/7/9 6.0 PACKAGING INFORMATION 6.1 Package Marking Information 5-Lead SC70 (MCP6401 only) Example: BL25 5-Lead SOT-23 (MCP6401/1R/1U, MCP6406) Part Number Code MCP6401T-E/OT NLNN MCP6401T-H/OT U8NN MCP6401RT-E/OT NMNN MCP6401RT-H/OT U9NN MCP6401UT-E/OT NPNN MCP6401UT-H/OT V8NN MCP6406T-E/OT ZXNN MCP6406T-H/OT ZYNN 8-Lead TDFN (2 x 3) (MCP6402 only) Legend: XX...
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MCP6401/1R/1U/2/4/6/7/9 Package Marking Information (Continued) 14-Lead SOIC (150 mil) (MCP6404, MCP6409) Example: MCP6404 H/SL e ^^3 1129256 and 14-Lead TSSOP (MCP6404 only) XXXXXXXX YYWW NNN Legend: XX...
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MCP6401/1R/1U/2/4/6/7/9 .
PAGE 26
MCP6401/1R/1U/2/4/6/7/9 ! .
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MCP6401/1R/1U/2/4/6/7/9 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging © 2009-2011 Microchip Technology Inc.
PAGE 28
MCP6401/1R/1U/2/4/6/7/9 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS22229D-page 28 © 2009-2011 Microchip Technology Inc.
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MCP6401/1R/1U/2/4/6/7/9 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging © 2009-2011 Microchip Technology Inc.
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MCP6401/1R/1U/2/4/6/7/9 " # $% !&' ( ) * . # # $ # / ! - 0 # 1 / % # # ! # ## +22--- 2 / DS22229D-page 30 © 2009-2011 Microchip Technology Inc.
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MCP6401/1R/1U/2/4/6/7/9 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging © 2009-2011 Microchip Technology Inc.
PAGE 32
MCP6401/1R/1U/2/4/6/7/9 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS22229D-page 32 © 2009-2011 Microchip Technology Inc.
PAGE 33
MCP6401/1R/1U/2/4/6/7/9 " + , % - . / # 0!0 & ( ) +, . # # $ # / ! - 0 # 1 / % # # ! # ## +22--- 2 / © 2009-2011 Microchip Technology Inc.
PAGE 34
MCP6401/1R/1U/2/4/6/7/9 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS22229D-page 34 © 2009-2011 Microchip Technology Inc.
PAGE 35
MCP6401/1R/1U/2/4/6/7/9 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging © 2009-2011 Microchip Technology Inc.
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MCP6401/1R/1U/2/4/6/7/9 . # # $ # / ! - 0 # 1 / % # # ! # ## +22--- 2 / DS22229D-page 36 © 2009-2011 Microchip Technology Inc.
PAGE 37
MCP6401/1R/1U/2/4/6/7/9 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging © 2009-2011 Microchip Technology Inc.
PAGE 38
MCP6401/1R/1U/2/4/6/7/9 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS22229D-page 38 © 2009-2011 Microchip Technology Inc.
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MCP6401/1R/1U/2/4/6/7/9 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging © 2009-2011 Microchip Technology Inc.
PAGE 40
MCP6401/1R/1U/2/4/6/7/9 APPENDIX A: REVISION HISTORY Revision D (September 2011) The following is the list of modifications: 1. Section 1.0 “Electrical Characteristics”: Updated minor typographical corrections in both “DC Electrical Specifications” tables to show the correct unit for RL (kΩ instead of kW). Revision C (August 2011) The following is the list of modifications: 1. 2. 3. 4. 5. 6. 7. 8. Added new MCP6406, MCP6407 and MCP6409 devices and the related information throughout the document.
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MCP6401/1R/1U/2/4/6/7/9 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO.
PAGE 43
Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature.
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