MCP6043-E/P - 1.4V 14kHz Low-Power Op Amp | Microchip Technology
料号： MCP6043-E/P ✓ 量产中MCP6043-E/P 概述
An operational amplifier is a high-gain differential amplifier used to amplify, buffer, filter, or compare small voltage signals. The MCP6043 belongs to the operational-amplifier hierarchy, within analog signal-processing integrated circuits and the broader amplifier IC category. Rail-to-rail inputs allow the signal to approach the supply limits, while rail-to-rail outputs provide useful output swing near either rail for low-voltage sensor and battery-powered systems.
Key characteristics include a 1.4 V minimum operating supply, support for supplies up to 6.0 V, a 14 kHz typical gain-bandwidth product, and 600 nA typical quiescent current. The listed 80 dB common-mode rejection ratio helps reject equal-mode interference, and the approximately 0.003 V/µs slew rate indicates that the amplifier is optimized for low-frequency precision and signal-conditioning tasks rather than high-speed waveform work.
The MCP6043-E/P uses an 8-pin PDIP package with an operating temperature range from -40°C to +125°C. Its single-amplifier configuration simplifies layouts that need only one independent op amp. The device also includes chip-select functionality, allowing a powered system to control whether the amplifier is active when multiple signal paths share a common power supply.
Typical uses include battery-powered sensor interfaces, portable medical monitoring, industrial process-control signals, low-frequency active filters, and buffered sensor outputs. The low 600 nA typical quiescent current helps preserve battery capacity, while the 1.4 V minimum supply allows operation from low-energy rails.
Designers should account for the modest 14 kHz bandwidth and 0.003 V/µs slew rate when selecting feedback values or filtering signals. Decoupling capacitors should be placed close to the supply pins, and input common-mode and output swing limits must be checked against the actual signal range.
This product data combines verified distributor information, manufacturer-family details, package and pin information, structured comparisons, and application-specific design guidance. It also clearly distinguishes confirmed drop-in replacements from package variants that cannot be soldered into an existing 8-pin PDIP footprint.
直接替换替代料： MCP6043-E/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-E/P （相同外形与封装尺寸） ——差异在于 Common-Mode Rejection Ratio, Maximum Quiescent Current, Package.
MCP6043-I/P
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →MCP6043-E/P 最大额定值与电气特性
| Amplifier Type | 1 circuit, general-purpose operational amplifier |
| Minimum Supply Voltage | 1.4 V |
| Maximum Supply Voltage | 6.0 V |
| Supply Type | Single supply |
| 静态电流 | 600 nA per amplifier typical |
| Maximum Quiescent Current | 1.0 µA maximum per amplifier |
| Gain-Bandwidth Product | 14 kHz typical |
| Slew Rate | 0.0030 V/µs typical |
| Common-Mode Rejection Ratio | 80 dB typical |
| Input Common-Mode Range | Rail-to-rail |
| Output Swing | Rail-to-rail |
| 工作温度 | -40°C to +125°C |
| 封装 | 8-pin PDIP |
| Number of Terminals | 8 terminals |
| Chip Select | Yes |
| 安装类型 | Through-hole |
| Package Temperature Grade | E temperature grade |
MCP6043-E/P 引脚配置
| 引脚 1 | NC — Not connected |
| 引脚 2 | -IN — Inverting input |
| 引脚 3 | +IN — Non-inverting input |
| 引脚 4 | V- — Negative supply connection |
| 引脚 5 | CS — Chip-select input |
| 引脚 6 | OUT — Amplifier output |
| 引脚 7 | V+ — Positive supply connection |
| 引脚 8 | NC — Not connected |
典型应用
MCP6043-E/P 适用于 6 应用s: Battery-Powered Sensor Conditioning, Portable Medical Monitoring, Industrial Process Control, Low-Frequency Active Filters, Wearable Device Signal Interface, Portable Equipment Buffering.
Battery-Powered Sensor Conditioning
The MCP6043-E/P fits battery-powered sensor conditioning because it operates from a single supply as low as 1.4 V and consumes only 600 nA typical quiescent current per amplifier. Its rail-to-rail input capability helps accommodate low-output sensors, while the rail-to-rail output provides useful signal range near the supply rails. Place the amplifier between the sensor and an ADC or controller, and place the required bypass capacitor close to pin 7. The 14 kHz typical gain-bandwidth product is adequate for many slow sensor signals but should be checked against source impedance, required gain, and filtering bandwidth.
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Portable Medical Monitoring
The MCP6043-E/P can serve as a low-level signal-conditioning amplifier in portable medical-monitoring equipment operated from a compact battery supply. Its 1.4 V minimum operating voltage supports low-energy rails, while the 600 nA typical quiescent current limits standby consumption. Rail-to-rail inputs and outputs are useful when the monitored signal occupies much of the available supply range. Because this is a general-purpose amplifier with a 14 kHz typical gain-bandwidth product, the design should include suitable filtering, verify input-referred accuracy requirements, and follow applicable medical-device validation procedures.
推荐
Industrial Process Control
The MCP6043-E/P is suitable for low-frequency industrial process-control interfaces that require low amplifier supply current and an extended -40°C to +125°C operating range. It can buffer a transducer output, amplify a small error signal, or provide active filtering ahead of a controller input. Rail-to-rail input and output behavior is valuable on low-voltage, low-power analog rails. The through-hole PDIP package also remains practical for prototypes and repairable industrial assemblies. Engineers should verify the actual process-signal bandwidth, input common-mode range, output loading, and industrial qualification needs for the finished equipment.
推荐
Low-Frequency Active Filters
The MCP6043-E/P can implement first-order or low-order active filters when the signal bandwidth is well below its 14 kHz typical gain-bandwidth product. Its approximately 0.0030 V/µs slew rate and low quiescent current suit low-frequency filtering in portable or distributed measurement systems. Designers should use feedback and capacitor values that avoid excessive noise gain, because high closed-loop gain reduces usable bandwidth. Output loading and capacitive-drive limits should also be checked. A bypass capacitor near the supply pin and a clean ground return will reduce supply-noise coupling and preserve the expected low-frequency filter response.
推荐
Wearable Device Signal Interface
The MCP6043-E/P is appropriate for wearable and other portable products where amplifier standby current directly affects battery life. A 1.4 V minimum supply and 600 nA typical quiescent current permit operation from compact energy-harvesting or coin-cell-derived rails. Rail-to-rail inputs are advantageous when the sensor output uses most of the available voltage range, while the 14 kHz bandwidth is generally suitable for slow physiological or environmental measurements. The 8-pin PDIP package is useful for prototypes and through-hole modules, although a surface-mount option should be considered for a compact wearable production PCB.
推荐
Portable Equipment Buffering
The MCP6043-E/P can buffer a high-impedance source before it drives an ADC, comparator, or downstream analog stage. Its low typical quiescent current of 600 nA reduces the burden on portable supplies, and the single-supply range of 1.4 V to 6.0 V provides flexibility across low-voltage systems. Rail-to-rail output helps preserve the useful dynamic range of the source. The relatively modest gain-bandwidth product means source impedance and sampling speed must be considered: excessive source capacitance or high closed-loop gain can introduce stability, settling, or output-swing limitations that require additional investigation.
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推荐产品汇总
工程参考数据： MCP6043-E/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-I/P |
|---|---|---|
| Package | 8-pin PDIP | 8-pin PDIP |
| Brand | Microchip Technology | Microchip Technology |
| Amplifier Configuration | Single amplifier | Single amplifier |
| Minimum Supply Voltage | 1.4 V | 1.4 V |
| Maximum Supply Voltage | 6.0 V | 6.0 V |
| Quiescent Current | 600 nA per amplifier typical | 600 nA per amplifier typical |
| Gain-Bandwidth Product | 14 kHz typical | 14 kHz typical |
| Slew Rate | 0.0030 V/µs typical | 0.0030 V/µs typical |
| Input and Output Operation | Rail-to-rail input and output | Rail-to-rail input and output |
关键差异点
- Very low amplifier operating current （对比 MCP6043-I/P)
- Single-supply operation extends to 1.4 V （对比 MCP6043-I/P)
- Rail-to-rail signal-range utilization （对比 MCP6043-I/P)
设计说明
Use the single-supply input on pin 7 and the supply-return connection on pin 4, with a local bypass capacitor placed close to the supply pins. The verified MCP6043 family specification states 600 nA typical quiescent current, so capacitor leakage can become significant in low-current designs. Select low-leakage ceramic capacitors and account for their DC bias derating. Keep the chip-select signal in a defined state during startup to avoid an unintended amplifier state or additional supply-current path.
Do not treat the rail-to-rail input and output descriptions as permission to exceed the absolute maximum ratings. Check the input voltage relative to V+ and V- under every operating and fault condition, including startup transients. The MCP6043-E/P has a 14 kHz typical gain-bandwidth product and approximately 0.0030 V/µs slew rate, so attempting high closed-loop gain or fast large-signal transitions can cause inadequate bandwidth, slew distortion, or instability rather than the expected response.
Route the non-inverting and inverting inputs away from the supply, chip-select, and output traces to reduce capacitive coupling and output-to-input feedback. Connect the bypass capacitor directly between the supply and ground pins, provide an uninterrupted ground return, and place feedback components close to the relevant input pins. For sensitive sensor signals, use a quiet ground reference and evaluate the effect of board leakage, contamination, and moisture when very high source impedances are involved.
合规信息
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for MCP6043-E/P. A distributor listing describes the ordering code as an automotive temperature-grade variant, but that description alone is not treated as AEC-Q100 qualification evidence.