MP8101DJ-LF-P - 1.8V 400kHz Ultra-Low-Power Op Amp | MPS
Référence : MP8101DJ-LF-P ✓ ActifMP8101DJ-LF-P Présentation
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.
Alternatives de remplacement direct pour MP8101DJ-LF-P — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MP8101DJ-LF-P (même facteur de forme et même empreinte) — différant par Product Type, RoHS Status.
MP8101DJ-LF-Z
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →MP8101DJ
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MP8101
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MP8101DJ-LF-Z
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →TLV2711CDBVTG4
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MP8101DJ-LF-P Valeurs maximales et caractéristiques électriques
| Product Type | Single-circuit operational amplifier |
| Amplifier Topology | Rail-to-rail output |
| Gain-Bandwidth Product | 400 kHz |
| Courant d'alimentation | 11 µA |
| Minimum Single Supply Voltage | 1.8 V |
| Maximum Supply Voltage | 5.5 V |
| Boîtier | TSOT-23-5 |
| Nombre de broches | 5 pins |
| Number of Circuits | 1 circuit |
| Plage de température de fonctionnement | -40 °C to +85 °C |
| Common-Mode Rejection Ratio | 82 dB |
| Slew Rate | 0.2 V/µs |
| Statut RoHS | Compliant |
| Type de montage | Surface mount |
Guide de configuration des broches du MP8101DJ-LF-P tsot-23-5
Configuration des broches du MP8101DJ-LF-P (boîtier tsot-23-5). Ce composant analogique comporte des broches d'entrée, de sortie et d'alimentation. Consultez la fiche technique du fabricant pour les configurations des broches d'annulation d'offset, de compensation et d'activation. Idéal pour le conditionnement de signaux et les circuits amplificateurs.
Aucune donnée de brochage détaillée disponible pour MP8101DJ-LF-P.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MP8101DJ-LF-P convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MP8101DJ-LF-P — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Higher verified gain-bandwidth product (vs TLV2711CDBVTG4)
- Very low supply-current specification (vs MP8101DJ-LF-Z)
- Single-supply operation from 1.8 V (vs TLV2711CDBVTG4)
- Compact five-pin TSOT package (vs MP8101)
Notes de conception
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.
Informations de conformité
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.
