Microchip Technology MCP6282T-E/MSVAO

Overview

MCP6282T-E/MSVAO from Microchip Technology is a dual rail-to-rail input/output operational amplifier in an 8-pin MSOP package, delivering 5 MHz gain bandwidth product, 450 µA typical quiescent current per amplifier, and operation from 2.2V to 6.0V supply voltage. It supports extended temperature range (–40°C to +125°C) and is used in photodiode amplifiers and portable battery-powered analog signal conditioning.

For engineers reviewing the MCP6282T-E/MSVAO datasheet, MCP6282T-E/MSVAO pinout, MCP6282T-E/MSVAO application, or MCP6282T-E/MSVAO equivalent, key selection criteria include rail-to-rail I/O swing, low IQ for energy-constrained systems, GBWP vs. power trade-off, and dual-channel isolation performance at high frequency.

Technical Context

The MCP6282T-E/MSVAO implements a dual CMOS op amp architecture with parallel input stages enabling rail-to-rail common-mode input range (VSS – 0.3 V to VDD + 0.3 V) and output swing (VSS + 15 mV to VDD – 15 mV at RL = 10 kΩ). Its 65° phase margin ensures stable unity-gain operation.

It features ultra-low input bias current (±1.0 pA typ. at 25°C), 85 dB CMRR at 5 V supply, and 90 dB PSRR - critical for precision DC-coupled sensor interfaces where offset drift and supply noise rejection directly impact measurement fidelity.

Key Specifications

Pinout & Package

Package: 8-lead MSOP (3.0 mm × 3.0 mm, 0.65 mm pitch), moisture sensitivity level 1, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual rail-to-rail op amp applications.

Compared with MCP6242-E/MS and LMV358IDR, the MCP6282T-E/MSVAO provides 5× higher bandwidth and true rail-to-rail input capability - essential for precision DC-coupled sensor interfaces where signal headroom and AC fidelity cannot be compromised.

Availability

MCP6282T-E/MSVAO is available at Aetrix Electronics and suitable for photodiode amplifiers, analog filter stages, and battery-powered sensor nodes requiring stable component supply across automotive, industrial, and portable equipment programs.

Supply support for MCP6282T-E/MSVAO includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology Inc. is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions, headquartered in Chandler, Arizona, with global design, manufacturing, and sales operations.

The MCP628x family is designed for low-cost, low-power, general-purpose analog signal conditioning - specifically targeting battery-operated equipment, automotive subsystems, and industrial sensors where rail-to-rail performance and extended temperature operation are mandatory.

FAQ

What is the maximum capacitive load the MCP6282T-E/MSVAO can drive without instability?

The MCP6282T-E/MSVAO remains stable with capacitive loads up to 100 pF in unity-gain buffer configuration. For larger loads (e.g., ADC input capacitance + PCB trace), a series isolation resistor (RISO) of 10–50 Ω is recommended at the output. Stability validation using the provided SPICE macro model is advised for loads exceeding 100 pF. The MCP6282T-E/MSVAO's 65° phase margin ensures robustness against moderate parasitic capacitance in compact layouts.

Does the MCP6282T-E/MSVAO support true rail-to-rail input when powered from 2.2 V?

Yes, the MCP6282T-E/MSVAO maintains rail-to-rail input capability across its full 2.2 V to 6.0 V supply range, with common-mode input range specified as VSS – 0.3 V to VDD + 0.3 V. At 2.2 V supply, this allows input signals from –0.3 V to +2.5 V - critical for interfacing with sensors whose output extends below ground or above VDD. This behavior is confirmed in Figure 2-3 and Figure 2-6 of the DS20001811F datasheet for the MCP6282T-E/MSVAO.

How does channel-to-channel separation perform on the MCP6282T-E/MSVAO at high frequencies?

The MCP6282T-E/MSVAO achieves ≥120 dB channel-to-channel separation at 1 kHz, degrading to ~100 dB at 100 kHz per Figure 2-23. This isolation is sufficient to prevent crosstalk between independent sensor channels in multi-parameter monitoring systems. The separation is measured with one amplifier driven at unity gain while the other is terminated; it reflects internal substrate and power rail coupling, not package parasitics. The MCP6282T-E/MSVAO's dual-die construction in MSOP minimizes inter-channel interference.

Can the MCP6282T-E/MSVAO be used in automotive under-hood applications?

Yes, the MCP6282T-E/MSVAO is qualified for operation from –40°C to +125°C and is commonly deployed in automotive cabin air quality sensors, body control modules, and lighting drivers. Its 85 dB CMRR and 90 dB PSRR suppress engine-bay conducted noise, while the 2.2 V minimum supply supports start-stop battery voltage sag. Although not AEC-Q100 certified as a standalone part, the MCP6282T-E/MSVAO is used in AEC-Q100-compliant systems where board-level qualification is performed. Always verify thermal dissipation using θ_JA = 206°C/W for MSOP.

What is the typical input offset voltage drift over temperature for the MCP6282T-E/MSVAO?

The MCP6282T-E/MSVAO exhibits ±1.7 µV/°C typical input offset voltage drift over the full –40°C to +125°C range, as specified in the DC Electrical Characteristics table. This low drift - combined with ±5.0 mV max offset over temperature - ensures minimal calibration burden in precision instrumentation. The drift is measured with VCM = VSS and is consistent across the MCP6281/1R/2/3/4/5 family, including the MCP6282T-E/MSVAO. Figure 2-4 confirms statistical distribution centered near ±1.7 µV/°C.