MP8104DJ-LF-P - 1.8V 400kHz Rail-to-Rail Op Amp | MPS
料号： MP8104DJ-LF-P ✗ 停产MP8104DJ-LF-P 概述
An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its differential inputs. Operational amplifiers belong to the broader signal-conditioning IC hierarchy, alongside instrumentation amplifiers, comparators, buffers, and specialized analog front-end devices. The MP8104DJ-LF-P is intended for applications that require compactness, low supply voltage, low power consumption, and a general-purpose single amplifier.
The most important verified specifications are the 1.8 V minimum single-supply operation, 400 kHz bandwidth, and 11 µA supply current. Its rail-to-rail output allows the output voltage to approach the supply rails more closely than a conventional non-rail-to-rail output stage, which can be useful in compact sensor, filtering, and signal-level conditioning circuits. The TSOT-23-5 package helps minimize board area, although its small footprint requires careful layout and thermal analysis.
The MP8104 is listed as an ultra-low-power operational amplifier with an industry-standard pin-out. The verified distributor information identifies it as a standard general-purpose amplifier in a one-circuit TSOT-23-5 package. Mouser also marks MP8104DJ-LF-P as NRFND and recommends MP8102 for new designs, so designers should verify lifecycle requirements before committing a new production PCB to this part. The manufacturer product page is the appropriate starting point for the latest datasheet and lifecycle information.
Typical uses include low-voltage sensor interfaces, battery-powered measurement circuits, analog filtering, general signal conditioning, portable instrumentation, and low-power embedded systems. The 400 kHz bandwidth is suitable for modest-speed applications rather than high-frequency precision signal chains. When selecting a replacement, verify the input common-mode range, output swing, offset voltage, noise, slew rate, and stability requirements in addition to the package and supply voltage.
A critical design consideration is avoiding overdriving the input or output stages. Keep the output within the amplifier's specified operating limits, account for capacitive loading at the output, and use short, low-impedance signal paths. For single-supply operation, provide adequate input and output decoupling close to the device and confirm that the selected feedback network is stable with the intended noise gain.
This product page combines the verified manufacturer and distributor information with practical design guidance, lifecycle caveats, pricing fields, and package-level replacement considerations that are not fully available from a distributor listing alone. It is intended to help engineers and purchasing teams verify fit, availability, and redesign risk.
直接替换替代料： MP8104DJ-LF-P ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
MP8104DJ-LF-Z
✅ 直接替换联系询价
查看数据手册 →MP8102
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MP8104DJ-LF-P 最大额定值与电气特性
| Product Type | General-purpose operational amplifier |
| Number of Circuits | 1 circuit |
| Minimum Single-Supply Voltage | 1.8 V |
| Gain-Bandwidth Product | 400 kHz |
| 电源电流 | 11 µA typical |
| 输出类型 | Rail-to-rail output |
| 工作温度范围 | -40 °C to +85 °C |
| 封装 | TSOT-23-5 |
| 安装类型 | Surface mount |
MP8104DJ-LF-P tsot-23-5 引脚配置指南
MP8104DJ-LF-P（tsot-23-5 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： MP8104DJ-LF-P.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MP8104DJ-LF-P 适用于 6 应用s: Battery-Powered Sensor Interface, Low-Power Analog Filtering, Portable Instrumentation Signal Conditioning, Embedded Control Signal Amplification, Low-Leakage Level Detection, General-Purpose Low-Voltage Amplification.
Battery-Powered Sensor Interface
The MP8104DJ-LF-P fits low-voltage sensor front ends because it operates from a single 1.8 V supply and consumes approximately 11 µA of supply current. It can amplify the output of a low-energy sensor before an ADC samples the signal without adding a high quiescent-current burden to the battery budget. The 400 kHz bandwidth is suitable for sensors that do not require high-frequency signal capture. Designers should verify the input common-mode range, offset, bias current, and output swing because those parameters are not present in the supplied verified snippets. Short feedback traces and local supply decoupling are important in the compact TSOT-23-5 layout.
Low-Power Analog Filtering
The MP8104DJ-LF-P can implement first-order active filters and small-signal conditioning stages where power consumption and board area are more important than high bandwidth. Its 400 kHz gain-bandwidth product provides useful bandwidth for slow control, sensor, and instrumentation signals, while the 11 µA typical supply current supports energy-limited operation. The single-supply capability simplifies designs powered from 1.8 V rails. Before finalizing a filter, check the exact gain-bandwidth, slew-rate, output-swing, and stability data in the manufacturer datasheet, especially when driving a sensor or cable capacitance.
Portable Instrumentation Signal Conditioning
A portable measurement instrument can use the MP8104DJ-LF-P for low-level analog conditioning while operating from a compact 1.8 V power source. The rail-to-rail output can preserve more of the available signal range in a low-voltage system, while the 400 kHz bandwidth supports moderate-bandwidth instrumentation rather than precision dynamic-signal work. The low 11 µA supply current helps maintain battery life when multiple analog stages are present. The designer must confirm offset voltage, input bias current, open-loop gain, and common-mode limits before claiming metrology-grade accuracy, because the verified search excerpts do not provide those values.
Embedded Control Signal Amplification
The MP8104DJ-LF-P is appropriate for buffering and amplifying analog control signals in compact embedded systems powered by a 1.8 V system rail. Its single-amplifier TSOT-23-5 package conserves board area, and its approximately 11 µA supply current limits the impact on power-constrained nodes. The 400 kHz bandwidth is adequate for many slow feedback and conditioning paths, but it is not the right choice for high-speed control loops requiring substantially greater bandwidth or slew rate. Validate the exact pinout, output swing, and stability with the intended feedback network before layout release.
Low-Leakage Level Detection
The MP8104DJ-LF-P can amplify a small voltage difference in battery or power-system level-detection circuits without requiring a high-voltage supply. Its rail-to-rail output is useful when comparing a threshold against a low-voltage signal and driving another mixed-signal block, while the 11 µA typical supply current supports low-power monitoring. The verified data does not provide input offset or input-bias figures, so these parameters must be evaluated against the sensing accuracy required by the system. Care should also be taken near the supply rails, where input and output behavior may differ from the ideal rail-to-rail model.
General-Purpose Low-Voltage Amplification
The MP8104DJ-LF-P serves as a general-purpose amplifier for low-voltage analog blocks where a 1.8 V minimum supply, 400 kHz bandwidth, and low 11 µA supply current are useful. Its single-circuit TSOT-23-5 package is convenient for prototypes and compact production boards, while the rail-to-rail output offers improved output range relative to a conventional non-rail-to-rail amplifier. This broad use case remains limited by the NRFND lifecycle recommendation, so an existing qualified BOM may retain the part while new designs should evaluate the manufacturer-recommended MP8102 after checking its specifications.
工程参考数据： MP8104DJ-LF-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 | MP8104DJ-LF-Z | MP8102 |
|---|---|---|---|
| Brand | Monolithic Power Systems | Monolithic Power Systems | Monolithic Power Systems |
| Package | TSOT-23-5 | TSOT-23-5 | TSOT-23-5 |
| Product Type | General-purpose operational amplifier | General-purpose operational amplifier | Operational amplifier |
关键差异点
- Very low minimum operating voltage （对比 MP8102)
- Low quiescent supply current （对比 MP8104DJ-LF-Z)
- Defined bandwidth for low-power signal conditioning （对比 MP8102)
- Rail-to-rail output in a compact package （对比 MP8104DJ-LF-Z)
设计说明
Place the input, output, and supply bypass capacitors immediately adjacent to the corresponding MP8104DJ-LF-P pins. Keep the feedback components and their associated traces short because the TSOT-23-5 footprint offers little routing area. Use a compact ground return and avoid routing high-current or fast-switching nodes beneath the amplifier to reduce supply disturbance and parasitic coupling.
Do not assume that the verified 1.8 V minimum supply permits safe operation at every possible output level. Check the datasheet input common-mode range and output-swing limits against the actual signal. Rail-to-rail output improves usable range but does not guarantee exact rail-to-rail saturation. Also verify the complete TSOT-23-5 pinout because the supplied search excerpts do not include the numbered pin table.
Check feedback stability with the intended noise gain and any cable or sensor capacitance. The verified 400 kHz bandwidth identifies the device as a moderate-bandwidth amplifier, but gain-bandwidth alone does not establish phase margin at every gain setting. Use the manufacturer stability guidance and standard compensation methods, and test the final PCB with the actual source impedance and load.
Estimate the amplifier's contribution to supply demand using the verified typical supply current of 11 µA before adding load-current effects. This value is suitable for an initial power-budget estimate but should not be treated as a guaranteed maximum. Obtain the maximum supply-current specification and operating-temperature limits from the manufacturer datasheet before conducting worst-case power budgeting.
合规信息
The supplied verified web results do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred from the TSOT-23-5 package.
