MP8104DJ-LF-Z - 1.8V, 400kHz Rail-to-Rail Op Amp
N.º de pieza: MP8104DJ-LF-Z ✗ Fin de vidaMP8104DJ-LF-Z Descripción general
An operational amplifier is a high-gain analog signal-conditioning IC used in the broader amplifier IC and analog IC hierarchy. Its common uses include voltage buffering, current-to-voltage conversion, differential sensing, active filtering, and feedback-controlled gain stages. The MP8104's 1.8 V minimum supply voltage allows operation directly from a single low-voltage cell or a low-dropout-regulated rail, while its rail-to-rail output enables useful signal swing toward the upper supply rail in low-voltage systems.
The verified device information identifies a 400 kHz gain-bandwidth product and 2 pA input-bias current. The 400 kHz bandwidth provides a practical operating range for slow sensor signals, low-frequency instrumentation, and feedback loops that do not require high-speed signal handling. The 2 pA bias-current figure is particularly useful for high-impedance sensing, where input leakage can create gain errors. A listed 82 dB metric is also associated with the device, although the supplied source snippets do not fully define the measurement conditions.
The TSOT-23-5 package minimizes PCB area and is compatible with high-density analog and mixed-signal layouts. Because the package has limited thermal mass, sustained output current and power dissipation require careful load and layout review. The exact input-offset voltage, output-current capability, quiescent current, noise spectrum, common-mode range, and operating-temperature limits were not supplied in the verified data and must be confirmed in the manufacturer datasheet before production design.
Typical uses include battery-powered sensor interfaces, portable biomedical signal conditioning, low-current industrial monitoring, audio and control-signal amplification, and small-footprint analog filter stages. The low 1.8 V supply threshold and small package make the device especially suitable for space-constrained equipment powered from a single cell or a low-energy Bluetooth, IoT, or wearable sensor node.
When designing around the MP8104, place input, output, and decoupling connections using the shortest practical signal paths and provide local supply bypassing according to the manufacturer layout guidance. Confirm output-swing limits under the actual load, verify that the selected feedback network works across the intended 1.8 V to 5.5 V range, and account for input-bias-current error when the source impedance is high.
This product record consolidates the verified manufacturer and distributor facts for the MP8104DJ-LF-Z with package guidance, sourcing limitations, and application-oriented engineering considerations. It also explicitly separates published values from parameters that still require confirmation from the complete manufacturer datasheet.
Alternativas directas para MP8104DJ-LF-Z — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
No hay alternativas directas disponibles para este producto.
Solicitar alternativasMP8104DJ-LF-Z Valores máximos y características eléctricas
| Product Type | Operational amplifier |
| Amplifier Circuit Count | 1 circuit |
| Supply Voltage Range | 1.8 V to 5.5 V |
| Gain-Bandwidth Product | 400 kHz |
| Output Swing | Rail-to-rail |
| Input Bias Current | 2 pA |
| Listed Gain Metric | 82 dB |
| Power Class | Ultra-low power |
| Encapsulado | TSOT-23-5 |
| Tipo de montaje | Surface mount |
| Pinout | Industry-standard five-pin operational-amplifier pinout |
| Estado del ciclo de vida | NRND; not recommended for new designs |
Guía de configuración de pines de MP8104DJ-LF-Z tsot-23-5
Configuración de pines para MP8104DJ-LF-Z (encapsulado tsot-23-5). Este componente analógico presenta pines de entrada, salida y alimentación. Consulte la hoja de datos del fabricante para conocer las configuraciones de los pines de ajuste de offset, compensación y habilitación. Ideal para circuitos de acondicionamiento de señal y amplificadores.
No hay datos detallados de patillaje disponibles para MP8104DJ-LF-Z.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MP8104DJ-LF-Z es adecuado para 6 aplicacións: Battery-Powered Sensor Signal Conditioning, Portable IoT Sensor Nodes, Low-Power Audio Control Path, Precision Low-Voltage Filtering, Industrial Current-Sensing Interface, Medical and Diagnostic Signal Buffer.
Battery-Powered Sensor Signal Conditioning
The MP8104DJ-LF-Z fits low-energy sensor interfaces because it operates from 1.8 V to 5.5 V and is specified as an ultra-low-power operational amplifier. Its 2 pA input-bias current can reduce leakage-induced error when the source impedance is high, while the 400 kHz gain-bandwidth product is sufficient for many slow sensor signals and control loops. Place the amplifier close to the sensor or ADC input, use a low-value feedback network where offset and bias errors permit, and verify the input common-mode range and quiescent current at the lowest operating voltage. Rail-to-rail output is useful when the processed signal must approach the low-voltage supply rail.
Portable IoT Sensor Nodes
The MP8104DJ-LF-Z is applicable to compact IoT sensor nodes powered from a single cell or low-voltage regulator. Its 1.8 V minimum supply supports low-energy operation, and the TSOT-23-5 footprint preserves PCB area compared with larger operational-amplifier packages. The 400 kHz gain-bandwidth product can amplify or buffer slowly changing sensor information without demanding a high-speed amplifier. For a practical design, account for the input-bias current when the sensor source resistance rises, bypass the supply locally, and confirm that the amplifier remains stable with the selected feedback values and capacitive loads.
Low-Power Audio Control Path
The MP8104DJ-LF-Z can serve in low-level audio control, microphone, or line-conditioning paths when the circuit operates from a 1.8 V to 5.5 V rail. Rail-to-rail output improves usable signal swing in compact audio equipment, and the 2 pA input-bias current is favorable for high-impedance source networks. Its 400 kHz gain-bandwidth product covers audio-band signal conditioning, although the actual bandwidth and distortion must be checked against the MP8104 gain-versus-frequency data. Keep the input and feedback routes short, avoid long traces next to switching nodes, and use the recommended bypassing arrangement for stable low-noise operation.
Precision Low-Voltage Filtering
The MP8104DJ-LF-Z is suitable for first-order and modest-gain active-filter stages in low-voltage analog systems. Its 400 kHz gain-bandwidth product provides useful loop bandwidth for filters operating well below the megahertz range, while the 1.8 V to 5.5 V supply range supports compact mixed-signal equipment. The 2 pA input-bias specification can be particularly valuable when the preceding sensor or resistor network presents high source impedance. Component tolerances and amplifier input offset will affect accuracy, so simulate the closed-loop gain and phase margin, and confirm noise and settling requirements using the complete manufacturer datasheet.
Industrial Current-Sensing Interface
The MP8104DJ-LF-Z can buffer the output of a low-side current-sense amplifier or support a gain stage in compact industrial monitoring equipment. Its rail-to-rail output permits close approach to the supply rail, and the 2 pA input-bias current reduces errors from high-impedance differential networks. The 400 kHz gain-bandwidth product supports many low-bandwidth monitoring and control signals. Designers should verify the actual input common-mode range, input offset, output-current limit, and noise at the operating temperature before using it in safety-critical or high-accuracy measurement systems.
Medical and Diagnostic Signal Buffer
The MP8104DJ-LF-Z may be used for low-frequency buffer and conditioning stages in portable medical or diagnostic equipment where low bias current and a 1.8 V to 5.5 V supply are beneficial. The 2 pA input-bias current helps when working with high-impedance sensors, and the compact TSOT-23-5 package supports dense analog boards. It should not be assumed suitable for every diagnostic waveform: input offset, noise density, common-mode behavior, isolation requirements, and operating-temperature limits were not supplied. Validate those parameters against the complete MPS datasheet and applicable medical device requirements before clinical use.
Datos de referencia de ingeniería para MP8104DJ-LF-Z — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto |
|---|---|
| Product Type | Ultra-low-power operational amplifier |
| Brand | Monolithic Power Systems |
| Package | TSOT-23-5 |
| Supply Voltage Range | 1.8 V to 5.5 V |
| Gain-Bandwidth Product | 400 kHz |
| Input Bias Current | 2 pA |
| Output Swing | Rail-to-rail |
| Lifecycle Status | NRND; MP8102 recommended for new designs |
Diferenciadores clave
- Ultra-low 1.8 V minimum operating voltage (frente a MP8102)
- Very low input-bias current for high-impedance sources (frente a MP8102)
- Compact TSOT-23-5 implementation (frente a MP8102)
Notas de diseño
Do not treat the NRND designation as a routine active-part status. Mouser explicitly recommends the MP8102 for new designs, while verified sources still identify MP8104DJ-LF-Z for maintenance or existing production use. For an existing board, confirm that the alternative has the same TSOT-23-5 footprint, pin assignments, supply range, and electrical limits. For a new PCB, evaluate the recommended successor and verify stability, common-mode range, output swing, and power consumption rather than assuming a simple order-code substitution.
Place the amplifier and its input, feedback, output, and decoupling connections close together on the PCB. Keep high-impedance input nets short and away from switching nodes, clocks, and inductors. The 2 pA input-bias current is favorable for high-impedance sources, but long traces can still add leakage and interference that dominate the specified error. Use a local supply bypass capacitor according to the manufacturer guidance and provide a low-impedance ground return to reduce common-mode and supply-induced noise.
The verified 1.8 V to 5.5 V supply range makes the MP8104DJ-LF-Z appropriate for single-cell and compact regulated systems. Before finalizing a power budget, confirm the device's quiescent current and output-current capability from the complete datasheet. Low supply voltage can restrict input and output operating ranges, especially near the lower rail, and a load that appears modest at 5.5 V can become significant at 1.8 V. Validate headroom across temperature and verify the regulator's startup behavior.
Información de cumplimiento
The supplied verified excerpts do not contain explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. The LF-Z ordering suffix alone was not treated as proof of any compliance claim.
