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Monolithic Power Systems Inc. MP8101DJ-LF-P
- Part No.:
- MP8101DJ-LF-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MP8101DJ-LF-P.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,423
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Product details
Overview
MP8101DJ-LF-P from Monolithic Power Systems is a rail-to-rail output, ultra-low-power operational amplifier in TSOT-23-5 package, delivering 400 kHz gain-bandwidth product, 11 µA supply current, and 1.8 V to 5.5 V single-supply operation. It serves as a precision signal conditioning amplifier in battery-powered portable electronics where supply current and input common-mode range to ground are critical.
For engineers reviewing the MP8101DJ-LF-P datasheet, MP8101DJ-LF-P pinout, MP8101DJ-LF-P application, or MP8101DJ-LF-P equivalent, key selection criteria include its 11 µA quiescent current, rail-to-rail output swing, input common-mode range extending to ground, unity-gain stability, and ability to drive ≥1000 pF capacitive loads without oscillation.
Technical Context
This op amp uses a CMOS input stage enabling picoampere-level input bias current (2 pA typ) and rail-to-rail input common-mode range down to ground. Its internal compensation ensures unity-gain stability while maintaining 400 kHz GBW and 0.2 V/µs slew rate under 10 kΩ load.
The device operates across –40°C to +85°C with PSRR of 80 dB and CMRR of 82 dB, supporting precision DC-coupled sensing in low-voltage systems. Absolute maximum supply voltage is 6.0 V, with recommended operation limited to 1.8–5.5 V to ensure specified performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interface with Li-ion, coin-cell, and 3.3 V logic rails |
| Quiescent Current | 11 µA typ - extends battery life in always-on sensor front-ends and wearables |
| Gain-Bandwidth Product | 400 kHz - supports low-frequency signal amplification (e.g., thermistor, pH sensor outputs) |
| Input Bias Current | 2 pA typ - minimizes voltage error in high-impedance source applications (e.g., photodiode transimpedance) |
| Output Swing | (V−) + 19 mV to (V+) − 23 mV - delivers full dynamic range near supply rails for ADC input buffering |
| Capacitive Load Drive | Up to 1000 pF - eliminates need for isolation resistor in RC-filtered sensor interfaces |
| Input Common-Mode Range | 0 V to 3.8 V at V+ = 5 V - allows ground-referenced signal acquisition without level-shifting |
Pinout & Package
TSOT-23-5 package: 5-pin, surface-mount, 2.9 mm × 1.6 mm footprint, 0.95 mm height, thermal resistance θJA = 220°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Amplified output node; rail-to-rail capable, drives ≥1000 pF directly |
| 2 | V+ | Positive supply terminal; accepts 1.8–5.5 V; requires local 10 µF || 0.1 µF bypass |
| 3 | IN+ | Non-inverting input; CMOS input with 2 pA bias current and ground-referenced common-mode range |
| 4 | IN− | Inverting input; matched to IN+ for <5 mV offset and 15 µV/°C drift |
| 5 | V− | Ground or negative supply return; referenced to system GND in single-supply configurations |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers usable output within 19 mV of V− and 23 mV of V+, maximizing ADC input utilization |
| Unity-gain stable architecture | Operates reliably in buffer, follower, and gain-of-one configurations without external compensation |
| Input common-mode range to ground | Accepts signals down to 0 V on both inputs-enables direct interfacing with ground-referenced sensors |
| Low-input-bias-current CMOS input | 2 pA typical bias current prevents loading errors in >1 MΩ source impedances |
| Stable with 1000 pF capacitive load | Eliminates need for series output resistor in RC-filtered or cable-driven applications |
Applications
| Handheld GPS Receivers | Portable Medical Sensors |
|---|---|
Use Scenario: Amplifying weak analog signals from GPS antenna LNA outputs before ADC sampling. IC Role / Device Role / Timing Role: Low-noise, low-power signal buffer and gain stage operating from single 3.3 V supply. Use Value: 11 µA supply current extends runtime between charges; rail-to-rail output ensures full-scale ADC utilization despite low supply headroom. | Use Scenario: Conditioning bio-potential signals (e.g., ECG, pulse oximetry) in wearable patches. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with ground-referenced input for electrode interface. Use Value: Input common-mode range to ground avoids level-shifting circuitry; 2 pA bias current prevents electrode polarization errors. |
| Smart Pagers & PDAs | Cordless Phone Audio Front-End |
Use Scenario: Signal conditioning for button press detection, ambient light sensing, and battery monitoring circuits. IC Role / Device Role / Timing Role: General-purpose low-power op amp used in multiple analog subsystems. Use Value: Single 1.8 V operation matches modern microcontroller I/O voltage; 400 kHz bandwidth suffices for slow-varying sensor signals. | Use Scenario: Microphone preamplifier and audio line driver in battery-powered cordless handsets. IC Role / Device Role / Timing Role: Low-distortion, unity-gain stable amplifier driving 10 kΩ audio loads. Use Value: Rail-to-rail output delivers full 3.3 Vpp swing into audio codecs; 1000 pF load drive supports long PCB traces to codec ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001T-I/OT (Microchip) | 700 kHz GBW, 1 µA lower IQ (10 µA), but only 100 pF capacitive load drive | Limited to low-CL signal paths; unsuitable for RC-filtered or long-trace interfaces | Select when bandwidth >400 kHz is required and output capacitance is <100 pF |
| TLV851DBVR (TI) | 550 kHz GBW, 15 µA IQ, rail-to-rail input/output, but no guaranteed ground-sensing input | Cannot accept true 0 V input signals without external bias; higher power than MP8101 | Choose if higher speed is needed and input common-mode range can be biased above ground |
Compared with MCP6001T-I/OT and TLV851DBVR, MP8101DJ-LF-P uniquely combines ground-sensing input, 1000 pF load drive, and 400 kHz bandwidth at 11 µA-making it optimal for space-constrained, battery-sensitive designs requiring robust capacitive interface capability.
Availability
MP8101DJ-LF-P is available at Aetrix Electronics and suitable for handheld GPS receivers, portable medical sensors, smart pagers, and cordless phone audio front-ends requiring stable component supply and long-term production continuity.
Supply support for MP8101DJ-LF-P includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and power ICs, with design centers in the US, China, and Taiwan.
The MP8101 belongs to MPS's ultra-low-power op amp product line, engineered specifically for energy-constrained portable and wearable systems demanding sub-20 µA quiescent current and rail-to-rail functionality at 1.8 V.
FAQ
Is MP8101DJ-LF-P pin-compatible with MP8104?
No. MP8104 is a different device with distinct pinout and electrical characteristics. MP8101DJ-LF-P has five pins in TSOT-23-5 configuration (OUT, V+, IN+, IN−, V−), while MP8104 uses a different topology and package. Direct replacement is not supported.
What is the maximum capacitive load the MP8101DJ-LF-P can drive without instability?
The MP8101DJ-LF-P is characterized to drive up to 1000 pF capacitive load while maintaining phase margin and unity-gain stability. This is verified per datasheet Figure 10 and enables direct connection to RC filters or long PCB traces without isolation resistors.
Does MP8101DJ-LF-P support dual-supply operation?
Yes. Though optimized for single-supply use (1.8 V to 5.5 V), it functions with split supplies (e.g., ±2.5 V) as long as total supply voltage remains ≤6.0 V and input common-mode voltage stays within specified limits (0 V to V+ − 1.2 V).
What is the input offset voltage drift over temperature?
The input offset voltage drift is 15 µV/°C, as specified in the Electrical Characteristics table. This value is guaranteed by design and applies across the full operating temperature range of –40°C to +85°C.
Can MP8101DJ-LF-P operate from a 1.8 V supply while driving a 10 kΩ load?
Yes. At 1.8 V supply, the device delivers rail-to-rail output swing (within 19 mV of V− and 23 mV of V+) into 10 kΩ, with full 400 kHz GBW and 11 µA quiescent current maintained per datasheet Section 3.
Is MP8101DJ-LF-P RoHS-compliant and halogen-free?
Yes. MP8101DJ-LF-P is lead-free, halogen-free, and fully compliant with the EU RoHS directive. The "-LF" suffix explicitly denotes RoHS-compliant packaging, and green status documentation is available on the MPS Quality Assurance webpage.
MP8101DJ-LF-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.2V/µs
- Gain Bandwidth Product:
- 400 kHz
- -3db Bandwidth:
- 1 MHz
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 11µA
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
MP8101DJ-LF-P FAQ
1.How can I place an order for MP8101DJ-LF-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP8101DJ-LF-P on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MP8101DJ-LF-P reliable?
The price and inventory of MP8101DJ-LF-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP8101DJ-LF-P is usually 5 days.
3.What payment methods are accepted for MP8101DJ-LF-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP8101DJ-LF-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP8101DJ-LF-P?
MP8101DJ-LF-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP8101DJ-LF-P order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MP8101DJ-LF-P?
For technical support, including MP8101DJ-LF-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP8101DJ-LF-P requirements.
6.How does Aetrix verify that MP8101DJ-LF-P is sourced from the original manufacturer or authorized distributors?
All MP8101DJ-LF-P products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MP8101DJ-LF-P meets industry standards.
7.What is the process for return or replacement of MP8101DJ-LF-P?
All MP8101DJ-LF-P units undergo pre-shipment inspection (PSI). If there is an issue with MP8101DJ-LF-P, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MP8101DJ-LF-P part is unused and in its original packaging.
Return procedure for MP8101DJ-LF-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MP8101DJ-LF-P Tags
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LM358DT
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