MP8101DJ-LF-P - 1.8V 400kHz Ultra-Low-Power Op Amp | MPS
MPN： MP8101DJ-LF-P ✓ 啟用中MP8101DJ-LF-P 概覽
An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its differential inputs while using feedback to control gain, bandwidth, and signal integrity. The MP8101 is a rail-to-rail-output amplifier, meaning its output can approach the supply rails more closely than a conventional output stage. It belongs to the operational-amplifier, analog-amplifier, and power-management-adjacent low-power IC categories, making it useful in portable sensors, battery-powered instruments, and low-voltage embedded systems.
The main verified specifications are 400 kHz bandwidth, 11 µA supply current, and operation down to 1.8 V. The manufacturer describes the device as an ultra-low-power operational amplifier in a TSOT-23 package. The TSOT-23-5 outline supports compact surface-mount layouts, while the five-pin arrangement is intended for straightforward single-amplifier implementations. Rail-to-rail output supports low-voltage systems in which the signal can occupy much of the available supply range.
The MP8101 can be used for sensor amplification, buffer stages, low-voltage ADC drivers, current-shunt monitoring, and portable measurement systems. Its 11 µA supply current is useful in battery-operated equipment where the amplifier must remain present without dominating the standby power budget. The 400 kHz bandwidth permits moderate-speed signal processing, although the datasheet should be consulted for gain-bandwidth, slew-rate, input-common-mode, output-swing, and noise details before finalizing a design.
Designers should verify the exact input and output voltage limits, input bias current, output-current capability, noise density, slew rate, and stability requirements against the manufacturer datasheet. Decoupling capacitors should be placed close to the supply pins, and the unused input should be configured according to the datasheet recommendations. This page consolidates the verified manufacturer and distributor information, technical use cases, sourcing guidance, and drop-in replacement information for faster engineering review.
直接替換替代品，適用於 MP8101DJ-LF-P — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MP8101DJ-LF-P （相同外形與佔位） — 差異在於 Product Type, RoHS Status.
MP8101DJ-LF-Z
✅ 直接替換聯絡詢價
查看資料表 →MP8101DJ
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MP8101
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MP8101DJ-LF-Z
✅ 直接替換聯絡詢價
查看資料表 →TLV2711CDBVTG4
✅ 直接替換📋 參考替代品（不在目錄中）
MP8101DJ-LF-P 最大額定值與電氣特性
| Product Type | Single-circuit operational amplifier |
| Amplifier Topology | Rail-to-rail output |
| Gain-Bandwidth Product | 400 kHz |
| 供應電流 | 11 µA |
| Minimum Single Supply Voltage | 1.8 V |
| Maximum Supply Voltage | 5.5 V |
| 封裝 | TSOT-23-5 |
| 腳位數 | 5 pins |
| Number of Circuits | 1 circuit |
| 工作溫度範圍 | -40 °C to +85 °C |
| Common-Mode Rejection Ratio | 82 dB |
| Slew Rate | 0.2 V/µs |
| RoHS 狀態 | Compliant |
| 安裝類型 | Surface mount |
MP8101DJ-LF-P tsot-23-5 腳位配置指南
MP8101DJ-LF-P（tsot-23-5 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： MP8101DJ-LF-P.
請參閱 資料表 以查看完整腳位配置。
典型應用
MP8101DJ-LF-P 適用於 6 應用s: Battery-Powered Sensor Signal Conditioning, Low-Voltage ADC Input Buffer, Portable Medical Sensor Interface, Battery Voltage Monitoring, Industrial Current-Shunt Amplifier, Low-Power IoT Signal Conditioning.
Battery-Powered Sensor Signal Conditioning
The MP8101DJ-LF-P fits low-power sensor front ends because it operates from a single supply as low as 1.8 V and consumes 11 µA. Place it as a voltage follower when the sensor output requires buffering without changing its amplitude. The 400 kHz gain-bandwidth product provides ample margin for many sensor signals, while the rail-to-rail output helps preserve signal range in a compact supply envelope. Verify the actual sensor output swing, input common-mode range, and offset requirements before using it as a precision instrumentation amplifier.
推薦
Low-Voltage ADC Input Buffer
The MP8101DJ-LF-P can provide a simple low-voltage buffer between a sensor or divider network and an ADC input. Its 1.8 V minimum supply supports systems that do not maintain a 3.3 V or 5 V rail, while the 400 kHz gain-bandwidth product is suitable for moderate-speed sampling systems. The rail-to-rail output helps use the available ADC input range efficiently. Confirm ADC acquisition requirements, settling behavior, input capacitance, and the amplifier output-current capability in the system design.
推薦
Portable Medical Sensor Interface
The MP8101DJ-LF-P can be used in low-power medical sensing interfaces when the signal path requires modest amplification and buffering rather than instrumentation-grade precision. The 11 µA supply current helps limit continuous power use in wearable or portable equipment, and the TSOT-23-5 package supports compact layouts. A medical design must independently verify noise, offset, common-mode range, safety isolation, and applicable regulatory requirements because those parameters are not fully present in the supplied verified excerpts.
推薦
Battery Voltage Monitoring
The MP8101DJ-LF-P is suitable for amplifying the voltage across a battery divider or low-current shunt when the monitored signal is small and the system supply is only 1.8 V. Its low 11 µA supply demand reduces the continuous burden on the battery, and the rail-to-rail output can provide a useful signal to a comparator or ADC. Use precision resistors and account for the amplifier's offset and input-bias effects; exact resistor values should be calculated from the required measurement range and load current.
推薦
Industrial Current-Shunt Amplifier
The MP8101DJ-LF-P can serve as a low-current shunt amplifier in an industrial or embedded control circuit when the shunt voltage and signal bandwidth are modest. Its 400 kHz gain-bandwidth product is much higher than the 65 kHz bandwidth identified for TLV2711CDBVTG4, and its 11 µA supply current suits low-power nodes. Validate common-mode range, shunt resistance, output swing, input offset, and continuous output current against the actual bus voltage and fault conditions.
推薦
Low-Power IoT Signal Conditioning
The MP8101DJ-LF-P is appropriate for IoT nodes that condition low-frequency or moderate-bandwidth sensor signals while operating from a compact energy-harvesting or battery-derived rail. The 1.8 V minimum operating voltage supports low-voltage energy budgets, and the 11 µA supply current complements duty-cycled sensing architectures. The TSOT-23-5 footprint keeps board area small. Confirm input bias current, output settling, noise performance, and the amplifier's behavior during rail startup before finalizing the power-management design.
推薦
推薦產品摘要
工程參考資料，適用於 MP8101DJ-LF-P — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MP8101DJ-LF-Z | MP8101DJ | MP8101 | TLV2711CDBVTG4 |
|---|---|---|---|---|---|
| Package | TSOT-23-5 | TSOT-23-5 | TSOT-23-5 | TSOT-23 package | TSOT-23-5 |
| Brand | Monolithic Power Systems | Monolithic Power Systems | Monolithic Power Systems | Monolithic Power Systems | Texas Instruments |
| Gain-Bandwidth Product | 400 kHz | 400 kHz family specification | 400 kHz family specification | 400 kHz family specification | 65 kHz |
| Output Topology | Rail-to-rail output | Rail-to-rail output family specification | Rail-to-rail output family specification | Rail-to-rail output family specification | Rail-to-rail output |
| Number of Circuits | 1 circuit | 1 circuit family specification | 1 circuit family specification | 1 circuit family specification | 1 circuit |
主要差異化特點
- Higher verified gain-bandwidth product (對比TLV2711CDBVTG4)
- Very low supply-current specification (對比MP8101DJ-LF-Z)
- Single-supply operation from 1.8 V (對比TLV2711CDBVTG4)
- Compact five-pin TSOT package (對比MP8101)
設計說明
The manufacturer specifies 11 µA supply current and operation from 1.8 V, so the MP8101DJ-LF-P is well suited to low-power analog blocks. Keep the bypass capacitor close to the supply pins and account for the quiescent current during long standby periods. Exact capacitor values, input bias behavior, and output-current limits should be taken from the official datasheet before layout release.
Use a compact TSOT-23-5 layout with short input and output traces, a continuous ground plane, and a low-impedance connection between the bypass capacitor and the IC. Avoid routing sensitive input nets beneath or parallel with switching-converter nodes. Because the verified excerpts do not provide exact pin names or pinout drawings, confirm the official package diagram before assigning PCB pads.
Do not assume that rail-to-rail output means the output reaches either supply rail exactly. Check the datasheet output-swing and load-current graphs, and leave adequate headroom for the load. Similarly, 400 kHz is a gain-bandwidth product rather than a guaranteed closed-loop bandwidth at every gain. Validate stability, offset, noise, and common-mode behavior in the final circuit.
合規資訊
RoHS compliance is supported by the supplied distributor comparison information. Other compliance attributes are not stated in the verified web data. The product is an operational amplifier, so AEC-Q100 qualification is not applicable unless a specific automotive-qualified ordering variant is identified.
