MCP6294-E/P - Quad 10MHz RRIO Op Amp | Microchip
部品番号: MCP6294-E/P ✓ 生産中MCP6294-E/P 概要
An operational amplifier, or op amp, is a high-gain analog building block used to amplify, buffer, filter, compare, and drive signals. The MCP6294 belongs to the operational-amplifier hierarchy, where it combines low-noise voltage amplification with a wide common-mode input range. Rail-to-rail input and output operation allows signals to approach the supply limits, which is useful in low-voltage sensor, signal-conditioning, and mixed-signal systems.
The principal features are 10 MHz typical gain-bandwidth product, 65° phase margin, 8.7 nV/√Hz input noise, and 50 mA output-current capability. The MCP6294-E/P consumes 1.0 mA typical quiescent current per amplifier and operates over an extended temperature range of -40°C to +125°C. These characteristics balance bandwidth, noise, supply voltage, and power consumption rather than maximizing any single parameter.
Each of the four amplifiers includes rail-to-rail input and output stages. The common-mode input range extends beyond the conventional input stages, improving signal capture when the input approaches either supply rail. The 10 MHz gain-bandwidth product supports moderate-frequency signal paths, while the 65° phase margin provides stability margin for common closed-loop gain configurations. Typical input offset voltage is 3 mV, and minimum common-mode rejection ratio is 70 dB.
Typical uses include low-voltage sensor conditioning, current-loop and voltage-loop amplification, analog filtering, ADC input buffering, general-purpose instrumentation, and mixed-signal control. Combining four amplifiers in one package can also reduce board area and simplify power distribution where four matching amplifier channels are required.
Designers should check input and output swing, capacitive-load stability, noise gain, and system grounding. Decoupling capacitors should be placed close to the supply pins, and unused amplifier inputs should be biased to a valid common-mode level. The extended-temperature grade is suited to industrial environments when the board, solder, and surrounding components also meet the required temperature limits.
This page combines the manufacturer specifications with package-level guidance, application fit, and practical design considerations. It also distinguishes verified device characteristics from parameters that still require circuit-level confirmation, helping engineers evaluate the MCP6294-E/P before PCB implementation.
ドロップイン代替品: MCP6294-E/P — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストMCP6294-E/P 最大定格＆電気的特性
| Number of Channels | 4 channels |
| Amplifier Type | General-purpose operational amplifier |
| Gain-Bandwidth Product | 10 MHz typical |
| Phase Margin | 65 degrees |
| Supply Voltage Range | 2.4 V to 6.0 V |
| 静止電流 | 1.0 mA typical |
| Input Noise Density | 8.7 nV/√Hz |
| Output Current | 50 mA |
| Input Offset Voltage | 3 mV |
| Common-Mode Rejection Ratio | 70 dB minimum |
| Input Type | Rail-to-rail |
| 出力タイプ | Rail-to-rail |
| 動作温度範囲 | -40°C to +125°C |
| パッケージ | 14-pin plastic DIP |
| 実装タイプ | Through-hole |
MCP6294-E/P ピン構成
| ピン 1 | OUTA — Amplifier A output |
| ピン 2 | INA- — Amplifier A inverting input |
| ピン 3 | INA+ — Amplifier A non-inverting input |
| ピン 4 | V- — Negative supply |
| ピン 5 | INB+ — Amplifier B non-inverting input |
| ピン 6 | INB- — Amplifier B inverting input |
| ピン 7 | OUTB — Amplifier B output |
| ピン 8 | V+ — Positive supply |
| ピン 9 | OUTC — Amplifier C output |
| ピン 10 | INC- — Amplifier C inverting input |
| ピン 11 | INC+ — Amplifier C non-inverting input |
| ピン 12 | V- — Negative supply |
| ピン 13 | IND+ — Amplifier D non-inverting input |
| ピン 14 | IND- — Amplifier D inverting input |
主な用途
MCP6294-E/P の用途: 6 件s: Low-Voltage Sensor Signal Conditioning, ADC and DAC Interface Buffering, Precision Analog Filtering, Battery-Powered Portable Instruments, Industrial Control and Measurement, Audio and Communication-Signal Buffers.
Low-Voltage Sensor Signal Conditioning
The MCP6294-E/P is appropriate for conditioning low-level sensor outputs because its 8.7 nV/√Hz input noise and 10 MHz gain-bandwidth product support accurate amplification of signals near the sensor bandwidth. Rail-to-rail input operation improves usable signal capture on 2.4 V to 6.0 V supplies, while the four channels can provide gain, filtering, buffering, and output drive in one package. The designer should calculate the complete input-referred error budget and verify common-mode rejection across the actual signal range.
おすすめ
ADC and DAC Interface Buffering
The MCP6294-E/P can serve as an interface buffer between analog transducers and converters when low supply voltage and modest signal bandwidth are required. Its 10 MHz gain-bandwidth product gives useful bandwidth for gain stages above unity, and its rail-to-rail output helps preserve converter input range. Each amplifier must remain stable for the intended capacitive load and noise gain, while the 3 mV typical input offset should be included in the converter accuracy calculation.
おすすめ
Precision Analog Filtering
The MCP6294-E/P supports active-filter and active-feedback designs in low-voltage analog systems. Its 65° phase margin provides a useful starting point for closed-loop amplifier stability, and the four channels allow multiple filter sections to share one package. At higher Q or narrow-band designs, component tolerances, op-amp gain-bandwidth behavior, and the 8.7 nV/√Hz noise density must be evaluated. Suitable passive values should be chosen using the complete transfer function rather than bandwidth alone.
おすすめ
Battery-Powered Portable Instruments
The MCP6294-E/P fits portable measurement and monitoring equipment where four analog channels must operate from a compact power budget. Its 2.4 V minimum supply and 1.0 mA typical quiescent current per channel support low-voltage operation, while rail-to-rail inputs improve utilization of the available signal range. Battery systems should additionally account for regulator efficiency, input-filter losses, output-current demand, and the device's operating-temperature requirement.
おすすめ
Industrial Control and Measurement
The MCP6294-E/P can support industrial control, test, and measurement circuits requiring four amplifier channels and an extended temperature rating of -40°C to +125°C. The 50 mA output-current capability is useful for modest signal-drive requirements, while the 70 dB minimum common-mode rejection ratio helps reject common-mode noise on sensed lines. Isolation, surge protection, grounding, and input clamping must be handled separately because the operational amplifier is not a standalone protection device.
おすすめ
Audio and Communication-Signal Buffers
The MCP6294-E/P can buffer moderate-bandwidth communication or audio-related signals when a low-voltage, four-channel implementation is useful. Its 10 MHz bandwidth exceeds the bandwidth of many low-rate audio and control paths, and the 8.7 nV/√Hz input noise supports quiet amplification. However, minimum gain configurations and capacitive loads can reduce stability margin, so the final noise-gain network must be simulated and checked against the 65° phase-margin design target.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MCP6294-E/P — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 |
|---|---|
| Brand | Microchip Technology |
| Package | 14-pin plastic DIP |
| Number of Channels | 4 channels |
| Gain-Bandwidth Product | 10 MHz typical |
| Input Noise Density | 8.7 nV/√Hz |
| Supply Voltage Range | 2.4 V to 6.0 V |
| Quiescent Current | 1.0 mA typical |
| Output Current | 50 mA |
| Input and Output | Rail-to-rail |
| Operating Temperature Range | -40°C to +125°C |
主な差別化要因
- Four amplifier channels in a through-hole package （vs MCP6062T-E/SN)
- Rail-to-rail signal handling on a low-voltage supply （vs TLV9064)
- Low typical quiescent current for four channels （vs MCP6062T-E/SN)
設計ノート
Place the supply-decoupling capacitor as close as practical to the V+ pin and connect the V- pins to the ground plane with a short, low-impedance path. The four-amplifier package has separate supply pins, so verify the manufacturer's recommended decoupling arrangement for all supply connections. Keep high-current return paths away from sensitive amplifier inputs to reduce ground-dependent errors.
Do not allow either input of an unused amplifier to float. Connect the unused non-inverting input to a defined common-mode voltage and the inverting input to the same point through feedback, or follow the manufacturer's unused-amplifier guidance. Floating inputs can pick up interference and may cause unexpected output behavior even though the amplifier is not carrying a useful signal.
Confirm stability for the actual noise gain and load capacitance rather than relying only on the 65° typical phase margin. Add an isolation resistor when driving long PCB traces or capacitive loads and evaluate the resulting closed-loop response. The 10 MHz gain-bandwidth product is suitable for many moderate-frequency stages, but high-Q filters and low gain configurations require separate stability analysis.
Estimated: at a 5.0 V supply and 1.0 mA typical quiescent current per channel, the four amplifiers consume approximately 20 mW total without external load current. Estimate the additional conduction loss as VIN multiplied by the total load current, then verify that supply droop, connector dissipation, and board temperature remain acceptable. The calculation does not include input-bias-current effects or dynamic output current.
コンプライアンス情報
The available product and distributor records do not provide explicit compliance declarations for this exact order code. Confirm RoHS, REACH, lead-free, halogen-free, conflict-minerals, and automotive qualification status with Microchip Technology or the authorized documentation for the production configuration.
