MCP6043-I/P - 600 nA RRIO Op Amp | Microchip | Industrial
料号： MCP6043-I/P ✓ 量产中MCP6043-I/P 概述
An operational amplifier, or op amp, is a voltage-controlled differential amplifier whose high open-loop gain allows a closed-loop circuit to amplify signals precisely. The MCP6043-I/P belongs to the broader hierarchy of linear amplifiers, analog amplifiers, and integrated circuits. Rail-to-rail input operation permits the input common-mode voltage to approach the supply rails, while rail-to-rail output operation allows the output to swing close to both supply limits under suitable load and output-voltage conditions.
The MCP6043-I/P combines a typical 14 kHz gain-bandwidth product with a typical 600 nA quiescent current. Its typical slew rate is 0.003 V/µs, and the specified input offset voltage is less than 3 mV. A common-mode rejection ratio of 80 dB is listed in the verified distributor data. These characteristics favor slow sensor signals, low-frequency control loops, and applications in which energy consumption is more important than wideband operation.
The MCP6043 family operates from a supply as low as 1.4 V and is offered in standard PDIP, SOIC, and MSOP packages. The MCP6043-I/P industrial-temperature option is identified by the I grade and is supplied in the 8-pin PDIP package. The device also includes a chip-select function, allowing the amplifier to be disabled when it is not required. Power consumption should therefore be evaluated both for active measurement periods and for inactive standby periods.
Typical applications include low-power sensor conditioning, industrial process-control loops, battery-powered data acquisition, portable medical monitoring, wearable-device signal paths, and low-frequency filter or transimpedance stages. Its rail-to-rail characteristics are useful when signals must be amplified close to the supply rails. However, the 14 kHz typical gain-bandwidth product is intentionally modest, so the device is better suited to slow precision signals than to wideband waveform processing.
When designing a board around the MCP6043-I/P, preserve the through-hole pin layout and verify the exact polarity, supply, input, output, and chip-select connections against the manufacturer datasheet. Keep input bias current paths short, provide stable bypassing at the supply pins, and account for input and output common-mode limits in the selected feedback topology. Confirm that the 600 nA operating current and 14 kHz bandwidth meet the application's timing and power budgets.
This page combines verified manufacturer and distributor information with application-specific engineering guidance, practical design considerations, and same-package alternative analysis. It is intended to help engineers identify whether the MCP6043-I/P provides the required low-power, rail-to-rail performance without requiring a higher-bandwidth amplifier.
直接替换替代料： MCP6043-I/P ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MCP6043-I/P （相同外形与封装尺寸） ——差异在于 Common-Mode Rejection Ratio, Package, Input Common-Mode Range, Maximum Quiescent Current, Minimum Supply Voltage.
MCP6043-E/P
✅ 直接替换联系询价
查看数据手册 →MCP6041-I/P
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →MCP6041-E/P
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →MCP6043-I/P 最大额定值与电气特性
| Number of Amplifiers | 1 circuit |
| Product Type | General-purpose operational amplifier |
| Input Type | Rail-to-rail input |
| 输出类型 | Rail-to-rail output |
| Minimum Operating Supply Voltage | 1.4 V |
| Maximum Operating Supply Voltage | 6.0 V |
| Typical Quiescent Current | 600 nA per amplifier |
| Maximum Quiescent Current | Less than 1.0 µA per amplifier |
| Typical Gain-Bandwidth Product | 14 kHz |
| Typical Slew Rate | 0.003 V/µs |
| Typical Maximum Input Offset Voltage | Less than 3 mV |
| Common-Mode Rejection Ratio | 80 dB |
| Input Bias Current | 0.0050 µA |
| 工作温度范围 | -40°C to +125°C |
| 封装 | 8-lead PDIP |
| 安装类型 | Through-hole |
| Chip Select | Yes |
MCP6043-I/P 8-lead pdip 引脚配置指南
MCP6043-I/P（8-lead pdip 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： MCP6043-I/P.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MCP6043-I/P 适用于 6 应用s: Battery-Powered Sensor Conditioning, Industrial Process-Control Loops, Portable Medical Monitoring, Low-Power Data Acquisition, Wearable Device Signal Paths, Precision Filter and Transimpedance Stages.
Battery-Powered Sensor Conditioning
The MCP6043-I/P is suitable for conditioning low-frequency sensor signals in battery-operated equipment because its typical quiescent current is only 600 nA and its family operates from 1.4 V. Rail-to-rail input and output capability allows useful signal range near the supply rails, which is valuable in compact systems with limited voltage headroom. The amplifier can sit between a resistive or resistive-divider sensor and an ADC input. Designers should verify input bias current against sensor source impedance and use the chip-select function during long inactive periods. The 14 kHz typical gain-bandwidth product is adequate for slow environmental measurements but not for high-frequency sensor signals.
推荐
Industrial Process-Control Loops
The MCP6043-I/P can amplify low-level process signals in industrial control systems where slow, stable feedback control is more important than high bandwidth. Its specified operating range of -40°C to +125°C supports equipment deployed across varied ambient conditions, and the 80 dB common-mode rejection ratio helps reject common-mode noise on long sensor lines. In a controller, the device can drive an error amplifier or buffer a conditioned transmitter signal. The 0.003 V/µs typical slew rate limits large-signal response, while the less-than-3 mV typical input offset supports low-error measurements. Check grounding and supply filtering carefully because process-control nodes can be electrically noisy.
推荐
Portable Medical Monitoring
The MCP6043-I/P fits low-power front ends for portable medical monitoring when the monitored bandwidth is low and battery consumption is critical. Its typical 600 nA operating current and ability to operate down to 1.4 V support compact analog sections powered from low-voltage cells. Rail-to-rail operation can improve utilization of the available supply in sensor-buffer and biopotential-conditioning circuits. The amplifier's 14 kHz typical gain-bandwidth product suits slow pressure, temperature, or biochemical-sensor signals rather than fast physiological waveforms. In medical equipment, system-level risk controls, isolation, electrode protection, leakage, and regulatory validation remain necessary and cannot be established from the component specifications alone.
推荐
Low-Power Data Acquisition
The MCP6043-I/P is appropriate for multiplexing low-frequency data-acquisition channels when each channel needs buffering close to the sensor. A 14 kHz typical gain-bandwidth product is suitable for temperature, pressure, position, and slowly varying voltage channels, and the 600 nA typical quiescent current helps preserve battery capacity when many channels are present. The device may be used as a non-inverting buffer, gain stage, or active filter around an ADC input. Engineers should account for settling time at the selected closed-loop gain and verify that the ADC source-impedance requirements remain satisfied. The chip-select function is valuable when the acquisition system must periodically reduce power consumption.
推荐
Wearable Device Signal Paths
The MCP6043-I/P can serve as a low-current amplification stage in wearable products that monitor slow physiological or environmental variables. The low 1.4 V minimum supply supports compact power budgets, while rail-to-rail input and output behavior can increase usable signal swing without requiring a larger supply. Because the MCP6043-I/P is a through-hole PDIP device, it is more practical for a prototype or compact industrial wearable prototype than a high-volume space-constrained wearable. For production wearables, the SOIC or MSOP options in the MCP6043 family are generally easier to miniaturize. Designers should verify electrode or sensor safety, input protection, offset behavior, and the chip-select shutdown strategy.
推荐
Precision Filter and Transimpedance Stages
The MCP6043-I/P is useful in low-frequency active filters and modest transimpedance stages where nanopower-level operation is more important than wideband response. Its low bias current reduces error when the source impedance is high, and rail-to-rail operation expands the usable output range in a single-supply circuit. The 14 kHz typical gain-bandwidth product places the practical bandwidth ceiling for closed-loop gain and stability analysis, while the 0.003 V/µs typical slew rate constrains large-signal transitions. Photodiode, humidity, and electrochemical-sensor interfaces may benefit from the low supply consumption. Designers must calculate feedback-noise gain, input capacitance, settling time, and photodiode capacitance before selecting compensation values.
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推荐产品汇总
工程参考数据： MCP6043-I/P ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MCP6043-E/P | MCP6041-I/P | MCP6041-E/P |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-lead PDIP | 8-lead PDIP - same package | 8-lead PDIP - same package | 8-lead PDIP - same package |
| Minimum Supply Voltage | 1.4 V | 1.4 V | 1.4 V | 1.4 V |
| Maximum Supply Voltage | 6.0 V | 6.0 V | 6.0 V | 6.0 V |
| Chip Select or Shutdown | Chip select | Chip select | Shutdown control | Shutdown control |
关键差异点
- Very low typical operating current （对比 MCP6041-I/P)
- Single-amplifier rail-to-rail configuration in a PDIP package （对比 MCP6043-E/P)
- Verified industrial-temperature operating range （对比 MCP6043-E/P)
- Chip-select support （对比 MCP6041-I/P)
设计说明
Treat the 600 nA typical quiescent current as a component-level figure rather than total board consumption. Estimate the amplifier's average supply contribution from its enabled duty cycle, chip-select state, output loading, and leakage through feedback resistors. The chip-select function can materially improve battery life when the sensor is sampled infrequently. Keep high-value feedback resistors from multiplying offset, bias-current, and thermal effects into an unacceptable error.
Use the manufacturer PDIP pin drawing as the authoritative layout reference and verify every connection before fabrication. Place supply-bypass capacitance close to the device's supply pins and maintain a compact return path. For a through-hole design, inspect the board after soldering because solder bridges around the 0.1-inch pitch can be difficult to inspect visually. A replacement using the same package is not automatically interchangeable until chip-select polarity, input configuration, and output behavior have been confirmed.
The 14 kHz typical gain-bandwidth product and 0.003 V/µs typical slew rate make the MCP6043-I/P most appropriate for slow signals. At higher closed-loop gains, verify settling time and output swing rather than relying only on bandwidth. Input capacitance from long PCB traces, switches, or sensor cables can interact with high-value feedback resistors, so keep those nodes small and use a nearby low-capacitance guard or buffer where necessary.
Do not assume that rail-to-rail input and output guarantees identical headroom under every load or frequency. Check the manufacturer's common-mode and output-swing graphs for the actual supply voltage, load, and temperature. Also verify that the selected MCP6043 or MCP6041 variant has the required pin behavior; same-package family parts can differ in shutdown or chip-select functionality even when their low-power characteristics are similar.
合规信息
The supplied verified excerpts do not contain explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. No compliance claim has been inferred. RoHS, REACH, and AEC-Q100 markers are listed in specs where the corresponding verified status is unavailable.
