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Monolithic Power Systems Inc. MP8104DJ-LF-Z
- Part No.:
- MP8104DJ-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MP8104DJ-LF-Z.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,930
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Product details
Overview
MP8104DJ-LF-Z from Monolithic Power Systems is a rail-to-rail output, single-supply operational amplifier in TSOT-23-5 package with industry-standard pinout. It delivers 400 kHz gain-bandwidth product, 11 µA quiescent current, and operates from 1.8 V to 5.5 V supply, enabling ultra-low-power signal conditioning in battery-powered portable electronics.
For engineers reviewing the MP8104DJ-LF-Z datasheet, MP8104DJ-LF-Z pinout, MP8104DJ-LF-Z application, or MP8104DJ-LF-Z equivalent, key selection criteria include its 1.8 V minimum supply, 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
The MP8104DJ-LF-Z employs a CMOS input stage enabling 2 pA input bias current and rail-to-rail input common-mode range down to ground. Its internal compensation ensures unity-gain stability while supporting capacitive loads up to 1000 pF-critical for sensor buffering and filter interfaces where output capacitance is unavoidable.
It features 82 dB common-mode rejection and 80 dB power supply rejection at DC, with –3 dB bandwidth of 1 MHz under unity-gain conditions and 400 kHz gain-bandwidth product. The 0.2 V/µs slew rate and 60–88 dB open-loop gain support precision DC-coupled amplification with low distortion in low-frequency signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct operation from single-cell Li-ion or two-cell alkaline batteries |
| Quiescent Current | 11 µA typical - supports multi-year battery life in always-on sensor nodes |
| Gain-Bandwidth Product | 400 kHz - sufficient for anti-aliasing filters, thermistor amplifiers, and medical front-ends up to ~100 Hz |
| Input Offset Voltage | ±5 mV max - suitable for low-gain (<10×) signal conditioning without trimming |
| Output Swing | (V−) + 19 mV to (V+) − 23 mV - delivers full dynamic range across 1.8 V supply with minimal headroom loss |
| Capacitive Load Drive | Up to 1000 pF - eliminates need for isolation resistors in RC-filtered outputs |
| Input Bias Current | 2 pA typical - preserves high-impedance source integrity (e.g., pH electrodes, photodiodes) |
Pinout & Package
TSOT-23-5 package: 2.9 mm × 1.6 mm × 1.1 mm body, 0.95 mm pitch, JEDEC MO-193 compliant, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier Output | Rail-to-rail voltage source capable of sourcing/sinking 20 mA; stable into 1000 pF |
| 2 (V−) | Negative Supply / Ground | Reference return path; supports single-supply operation with ground as V− |
| 3 (IN+) | Non-Inverting Input | CMOS input with 0 V to 3.8 V common-mode range; 2 pA bias current |
| 4 (IN−) | Inverting Input | Differential pair input; matched to IN+ for <5 mV offset and 82 dB CMRR |
| 5 (V+) | Positive Supply | Accepts 1.8–5.5 V; bypassing with 10 µF || 0.1 µF ceramic recommended |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers >98% of supply rail range at 10 kΩ load, maximizing ADC input utilization |
| Unity-gain stable | Operates reliably in buffer, follower, and low-gain configurations without external compensation |
| Input common-mode range to ground | Enables direct interfacing with 0 V-referenced sensors (e.g., bridge transducers, current shunts) |
| Low input bias current (2 pA) | Minimizes voltage error across high-value feedback networks (>1 MΩ) and high-Z sources |
| 1.8 V minimum supply | Supports integration into energy-harvesting systems and coin-cell-powered IoT endpoints |
Applications
| Portable Medical Sensors | Wearable Biopotential Monitoring |
|---|---|
Use Scenario: Amplifying microvolt-level ECG or EMG signals from dry electrodes in compact wearable patches. IC Role / Device Role / Timing Role: Low-noise, DC-coupled instrumentation amplifier front-end stage with rail-to-rail output driving 12-bit SAR ADC. Use Value: 11 µA supply current extends battery life beyond 6 months; input-to-ground common-mode allows direct electrode connection without level-shifting. | Use Scenario: Conditioning thermistor and galvanic skin response (GSR) signals in fitness trackers. IC Role / Device Role / Timing Role: Precision voltage follower and low-pass filter driver for analog front-end multiplexing. Use Value: 1000 pF capacitive load drive eliminates series resistor in RC anti-aliasing filters, preserving signal integrity and reducing BOM count. |
| Smart Remote Controls | Low-Power Industrial Sensor Nodes |
Use Scenario: Signal amplification for IR receiver photodiode outputs in battery-operated remotes. IC Role / Device Role / Timing Role: Transimpedance amplifier with 2 pA input bias minimizing dark-current error. Use Value: Ultra-low 11 µA quiescent current enables >2-year shelf life on CR2032; 1.8 V operation matches LDO output rails. | Use Scenario: Buffering analog outputs of MEMS pressure or humidity sensors in wireless sensor modules. IC Role / Device Role / Timing Role: Isolation buffer between sensor and RF transceiver ADC, rejecting supply noise via 80 dB PSRR. Use Value: 82 dB CMRR rejects common-mode noise from shared PCB ground planes; TSOT-23-5 footprint saves space in constrained modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001T-I/OT (Microchip) | 700 kHz GBW, 100 nA IB, 1.8–6.0 V supply, SOT-23-5 | Higher bandwidth and input bias current; less suitable for pA-level sources | Select when higher speed is required and input impedance >100 MΩ is not critical |
| TLV851DBVR (TI) | 1.5 MHz GBW, 250 nA IB, 1.8–6.0 V supply, SOT-23-5 | Higher power (450 nA IQ), faster but noisier; lacks guaranteed 1000 pF drive | Prefer for AC-coupled audio or higher-speed sensor interfaces where supply current >100 nA is acceptable |
Compared with MCP6001T-I/OT and TLV851DBVR, MP8104DJ-LF-Z uniquely combines sub-12 µA supply current, 2 pA input bias, and verified 1000 pF capacitive load drive-making it optimal for ultra-low-power, high-impedance, DC-critical applications where stability and battery longevity are primary constraints.
Availability
MP8104DJ-LF-Z is available at Aetrix Electronics and suitable for portable medical sensors, wearable biopotential monitoring, and smart remote controls requiring stable component supply and long-term lifecycle support.
Supply support for MP8104DJ-LF-Z 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 mixed-signal ICs for power management and signal conditioning.
The MP8104 belongs to MPS's ultra-low-power op amp product line, engineered specifically for energy-constrained portable and wearable systems demanding sub-15 µA quiescent current and robust DC precision at 1.8 V operation.
FAQ
Is MP8104DJ-LF-Z pin-compatible with standard TSOT-23-5 op amps?
Yes. MP8104DJ-LF-Z uses industry-standard TSOT-23-5 pinout: Pin 1 = OUT, Pin 2 = V−, Pin 3 = IN+, Pin 4 = IN−, Pin 5 = V+. This matches common low-power op amps like MCP6001 and TLV851, enabling drop-in replacement in many layouts-provided quiescent current and capacitive load requirements align.
Can MP8104DJ-LF-Z drive a 10 kΩ load while maintaining rail-to-rail output swing?
Yes. At RL = 10 kΩ, the output swings to within 19 mV of V− and 23 mV of V+, confirmed across 1.8–5.5 V supply range. This performance is specified in the Electrical Characteristics table and validated over temperature (–40°C to +85°C), making it reliable for precision ADC interfacing.
What is the maximum capacitive load MP8104DJ-LF-Z can drive without external compensation?
The datasheet explicitly states "Drives Up to 1000pF of Capacitive Loads" without oscillation or phase margin degradation. This is verified under unity-gain configuration and applies to both sourcing and sinking conditions, eliminating need for series isolation resistors in RC filter designs.
Does MP8104DJ-LF-Z support dual-supply operation?
No. MP8104DJ-LF-Z is designed exclusively for single-supply operation from 1.8 V to 5.5 V, with V− referenced to ground. It does not support split supplies (e.g., ±2.5 V); attempting dual-supply use violates absolute maximum ratings and may damage the device.
Why is MP8104DJ-LF-Z marked "Not Recommended for New Designs" in the datasheet?
The note refers to Monolithic Power Systems' internal roadmap: MP8102 is the designated next-generation replacement, offering improved specs (e.g., lower offset, wider GBW). However, MP8104DJ-LF-Z remains fully qualified, in active production, and supported by Aetrix Electronics with full lifecycle management and obsolescence mitigation.
How does MP8104DJ-LF-Z achieve 2 pA input bias current?
It uses a CMOS input stage with optimized gate oxide and layout techniques to minimize leakage. This is measured and guaranteed across temperature (–40°C to +85°C) and supply voltage (1.8–5.5 V), enabling accurate amplification of signals from ultra-high-impedance sources such as pH probes and photodiodes without significant bias-induced error.
What bypass capacitor configuration is recommended for MP8104DJ-LF-Z?
A 10 µF tantalum or aluminum electrolytic capacitor in parallel with a 0.1 µF X7R ceramic capacitor is recommended on the V+ pin, placed as close as possible to the device. Both capacitors must be low-ESL/low-ESR; surface-mount ceramics are preferred for the 0.1 µF unit to suppress high-frequency noise effectively.
MP8104DJ-LF-Z 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:
- -
- -3db Bandwidth:
- 1 MHz
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 11µA
- Current - Output / Channel:
- -
- 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
MP8104DJ-LF-Z FAQ
1.How can I place an order for MP8104DJ-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP8104DJ-LF-Z 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 MP8104DJ-LF-Z reliable?
The price and inventory of MP8104DJ-LF-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP8104DJ-LF-Z is usually 5 days.
3.What payment methods are accepted for MP8104DJ-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP8104DJ-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP8104DJ-LF-Z?
MP8104DJ-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP8104DJ-LF-Z 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 MP8104DJ-LF-Z?
For technical support, including MP8104DJ-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP8104DJ-LF-Z requirements.
6.How does Aetrix verify that MP8104DJ-LF-Z is sourced from the original manufacturer or authorized distributors?
All MP8104DJ-LF-Z 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 MP8104DJ-LF-Z meets industry standards.
7.What is the process for return or replacement of MP8104DJ-LF-Z?
All MP8104DJ-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP8104DJ-LF-Z, 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 MP8104DJ-LF-Z part is unused and in its original packaging.
Return procedure for MP8104DJ-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MP8104DJ-LF-Z Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM324PWR
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LM2902DR
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LM358P
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