MP8101DJ-LF-Z - 400kHz Low-Power RRO Op Amp | MPS
料号： MP8101DJ-LF-Z ✓ 量产中MP8101DJ-LF-Z 概述
An operational amplifier is an analog signal-conditioning IC that amplifies the difference between its inverting and non-inverting inputs. Within the broader semiconductor hierarchy, the MP8101 belongs to the operational-amplifier family of amplifier ICs and supports low-voltage, low-power system designs. Its rail-to-rail output allows the output voltage to approach the supply rails under suitable load and output conditions, while the 400 kHz bandwidth makes it suitable for moderate-speed signal paths rather than high-frequency precision applications.
The principal benefits of the MP8101DJ-LF-Z are its 11 µA supply-current consumption, 400 kHz gain-bandwidth product, single-supply operation down to 1.8 V, and 82 dB common-mode rejection ratio. The 0.2 V/µs slew rate supports moderate signal transitions, and the TSOT-23-5 package minimizes board area. These characteristics suit battery-powered sensing, portable instrumentation, low-voltage control, and general analog conditioning where energy efficiency and compactness matter.
Technically, the MP8101 is a general-purpose amplifier rather than a dedicated micropower part selected solely for the lowest possible quiescent current. Its 400 kHz bandwidth provides useful closed-loop response for low-frequency and moderate-bandwidth signals. Common-mode rejection of 82 dB helps reduce differential outputs caused by unwanted common-mode voltage, but input offset, input-bias current, output-current capability, noise, stability, and maximum supply voltage must be checked in the complete application before treating it as a universal substitute.
Typical uses include buffering sensor outputs, amplifying low-level analog signals, conditioning controls, driving moderate loads, and providing gain in compact battery-operated equipment. The rail-to-rail output is particularly useful when the signal must use most of the available supply range. Designers should nevertheless verify the output swing, capacitive-load behavior, input common-mode range, and shutdown behavior against the manufacturer datasheet before finalizing a design.
The primary design consideration is the tradeoff between bandwidth, supply voltage, and current consumption. The 11 µA operating current supports low-power operation, but 400 kHz bandwidth does not make the amplifier appropriate for high-speed communication links or video. Input and output stability should be evaluated with the actual source impedance, load, cable capacitance, and supply-decoupling network rather than under ideal laboratory conditions.
This product page consolidates the verified manufacturer and distributor information, identifies sourcing and technical-document links, and separates confirmed MP8101DJ-LF-Z characteristics from unavailable pricing and detailed pin information. It also provides application guidance and an honest drop-in comparison instead of presenting unsupported substitutions as verified equivalents.
直接替换替代料： MP8101DJ-LF-Z ——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： MP8101DJ-LF-Z （相同外形与封装尺寸） ——差异在于 Product Type, RoHS Status.
MP8101DJ-LF-P
✅ 直接替换联系询价
查看数据手册 →MP8101DJ-LF-Z 最大额定值与电气特性
| Product Type | Operational Amplifier |
| Circuit Count | 1 circuit |
| 输出类型 | Rail-to-rail output |
| Gain-Bandwidth Product | 400 kHz |
| Typical Supply Current | 11 µA |
| Minimum Single-Supply Operating Voltage | 1.8 V |
| Nominal Supply Voltage | 5.5 V |
| Common-Mode Rejection Ratio | 82 dB |
| Slew Rate | 0.2 V/µs |
| 工作温度范围 | -40 °C to +85 °C |
| 封装 | TSOT-23-5 |
| Package Type Code | MO-193AA |
| 引脚数量 | 5 pins |
| 安装类型 | Surface Mount |
| Amplifier Category | General Purpose |
| RoHS 状态 | Unknown |
MP8101DJ-LF-Z mo-193aa 引脚配置指南
MP8101DJ-LF-Z（mo-193aa 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： MP8101DJ-LF-Z.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MP8101DJ-LF-Z 适用于 6 应用s: Battery-Powered Sensor Conditioning, Portable Instrumentation, Low-Voltage Control Interfaces, Low-Power Audio and Communication Buffers, ADC Driver and Output Buffer, Threshold and Comparator-Style Detection.
Battery-Powered Sensor Conditioning
The MP8101DJ-LF-Z fits low-energy sensor front ends that operate from a 1.8 V or higher single supply. Its approximately 11 µA supply current helps limit the amplifier's contribution to battery consumption, while the 400 kHz gain-bandwidth product provides more than enough response for many temperature, pressure, and inertial sensors with moderate-frequency signals. The rail-to-rail output can improve utilization of the available signal range. Engineers should still verify input bias current, offset, noise, and the sensor's source impedance because those parameters can dominate a high-impedance measurement chain even when the gain-bandwidth product is adequate.
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Portable Instrumentation
The MP8101DJ-LF-Z is useful in compact handheld or portable measurement equipment where board area and standby consumption are important. Its TSOT-23-5 package occupies less space than a conventional SOIC-8 single amplifier, and the 1.8 V minimum single-supply operation supports compact mixed-signal systems. The 82 dB common-mode rejection ratio can suppress some unwanted common-mode content in instrumentation chains. Practical designs must account for the 0.2 V/µs slew rate and verify whether the sensor, display, or ADC requires a faster amplifier or greater output-current capability than the MP8101 provides.
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Low-Voltage Control Interfaces
The MP8101DJ-LF-Z can amplify error and feedback signals in low-voltage control systems because it supports a single supply as low as 1.8 V and provides a rail-to-rail output. The 400 kHz gain-bandwidth product is appropriate for many slow control loops, while 11 µA supply current supports conservative power budgets. Designers should use stable compensation and output isolation when driving capacitive loads or downstream filtering stages. Input and output behavior near the supply rails, along with settling at the required loop bandwidth, should be checked against the manufacturer datasheet and the actual control-loop requirements.
推荐
Low-Power Audio and Communication Buffers
The MP8101DJ-LF-Z is appropriate for buffering modest low-frequency signals in low-power audio or communications equipment, particularly when board area and supply current are tightly constrained. Its 400 kHz gain-bandwidth product supports audio-band signal paths, and the rail-to-rail output helps retain signal amplitude on a low supply. The amplifier is not a high-performance audio device, so output distortion, output-current capability, noise density, and stability into the selected load remain important checks. Designers should compare those parameters against the audio architecture rather than assuming general-purpose operation guarantees low distortion.
推荐
ADC Driver and Output Buffer
The MP8101DJ-LF-Z can serve as a small-signal buffer between a sensor or filter network and an ADC input when the required bandwidth is moderate. Its 400 kHz gain-bandwidth product and 0.2 V/µs slew rate make it suitable for many low-bandwidth acquisition chains, while the 11 µA current supports battery-operated data collectors. The rail-to-rail output can maximize the usable range of a low-voltage converter, but the actual ADC acquisition time, settling requirement, input capacitance, and kickback from the sampling network must be checked. A dedicated ADC driver may be preferable for faster conversions or heavier capacitive loading.
推荐
Threshold and Comparator-Style Detection
The MP8101DJ-LF-Z can be configured as a comparator-style threshold detector when the signal-to-noise ratio and propagation-delay requirements are modest. Its 400 kHz gain-bandwidth product and 0.2 V/µs slew rate allow it to respond to changes occurring within the audio band or slower, while the 11 µA supply current limits power use in battery systems. Rail-to-rail output increases available logic-level swing at low supply voltages. Nevertheless, a dedicated comparator is usually preferable when fast propagation, defined overdrive behavior, low offset, or guaranteed logic-level thresholds are essential, and open-loop use must be validated carefully.
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推荐产品汇总
工程参考数据： MP8101DJ-LF-Z ——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 | MP8101DJ-LF-P |
|---|---|---|
| Package | TSOT-23-5 | TSOT-23-5 - same |
| Brand | Monolithic Power Systems | Monolithic Power Systems |
| Gain-Bandwidth Product | 400 kHz | 400 kHz |
| Minimum Single-Supply Voltage | 1.8 V | 1.8 V |
| Common-Mode Rejection Ratio | 82 dB | 82 dB |
| Slew Rate | 0.2 V/µs | 0.2 V/µs |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C |
| Output Configuration | Rail-to-rail output | Rail-to-rail output |
关键差异点
- Very low supply-current operation in a compact operational-amplifier package （对比 MP8101DJ-LF-P)
- Single-supply operation extends to low-voltage portable systems （对比 MP8101DJ-LF-P)
- Rail-to-rail output improves low-voltage signal-range utilization （对比 MP8101DJ-LF-P)
设计说明
The verified 11 µA supply current makes the MP8101DJ-LF-Z appropriate for low-power systems, but total current includes input bias, output-load, and switching contributions. In a battery design, calculate the average and peak amplifier current at the actual operating voltage rather than relying only on the typical 11 µA figure. The 1.8 V minimum single-supply operation is useful, but the application must remain within the complete manufacturer-recommended supply range.
Do not infer that a rail-to-rail output guarantees a rail-to-rail input. The verified data specifically identifies rail-to-rail output but does not establish the input common-mode range. Signals approaching either supply rail must be checked against the manufacturer datasheet, and input bias current can create errors with high-impedance sensors. Likewise, avoid assuming open-loop comparator behavior is guaranteed; threshold detection requires validation for offset, noise, propagation delay, and output saturation.
Place the decoupling capacitor close to the supply and ground pins, keep the input and feedback paths short, and isolate sensitive sensor inputs from switching-current paths. The 400 kHz bandwidth and 0.2 V/µs slew rate make stable layout important even though the amplifier is not intended for high-speed signaling. Check stability with the actual source impedance, load capacitance, and output network because board parasitics can materially affect the TSOT-23-5 implementation.
合规信息
The supplied comparison mentions RoHS details but does not provide a verified compliance statement. Other environmental and material-compliance statuses were not established from the supplied excerpts.
