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Texas Instruments LMV751M5X/NOPB
- Part No.:
- LMV751M5X/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV751M5X/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,514
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Product details
Overview
LMV751M5X/NOPB from Texas Instruments is a low-noise, low-input-offset-voltage CMOS operational amplifier in SOT-23-5 package, delivering 6.5 nV/√Hz input voltage noise, 0.05 mV typical VOS, and 4.5 MHz gain-bandwidth product at 500 µA supply current. It operates from 2.7 V to 5.0 V and drives up to 1000 pF capacitive loads - ideal for precision signal conditioning in battery-powered portable electronics.
For engineers reviewing the LMV751M5X/NOPB datasheet, LMV751M5X/NOPB pinout, LMV751M5X/NOPB application, or LMV751M5X/NOPB equivalent, key selection criteria include rail-to-rail output swing (within ~86 mV of negative rail at 5 V), ground-referenced inputs, unity-gain stability, and low 1.5 pA max input bias current enabling high-impedance sensor interfacing.
Technical Context
The LMV751M5X/NOPB uses a cascoded P-channel MOSFET input stage enabling ground-referenced common-mode operation with 1.3 V headroom from V+, and a PNP-NPN common-emitter output stage delivering rail-to-rail output swing. Its internal compensation ensures unity-gain stability without external components.
It achieves low-noise performance via optimized input transistor sizing and biasing, with input-referred voltage noise flat at 6.5 nV/√Hz from 1 kHz onward and current noise as low as 0.01 pA/√Hz - critical for high-source-impedance transducer amplification and low-frequency instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 4.5 MHz typ. - supports stable closed-loop gain ≥1 with bandwidth sufficient for audio and sensor signal conditioning. |
| Input Offset Voltage | 0.05 mV typ. - enables DC-coupled amplification of µV-level signals without significant offset-induced error. |
| Input Voltage Noise | 6.5 nV/√Hz @ 1 kHz - minimizes contribution to total system noise in low-frequency (<100 kHz) precision applications. |
| Supply Current | 500 µA typ. - allows continuous operation in always-on sensor nodes powered by coin cells or energy harvesters. |
| Common-Mode Range | 0 V to 3.6 V @ 5 V supply - accepts ground-referenced inputs while rejecting supply ripple via 107 dB PSRR. |
| Output Drive | ±8 mA min. - directly interfaces with ADC reference buffers, analog switches, or moderate-capacitance filters without buffering. |
| Capacitive Load Drive | Up to 1000 pF - eliminates need for isolation resistors in anti-aliasing or reconstruction filter stages. |
Pinout & Package
SOT-23-5 (DBV) package: 2.9 mm × 1.6 mm × 1.45 mm body, surface-mount, RoHS-compliant, moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−) | High-impedance CMOS node; accepts differential input signals with 1.5 pA max input bias current. |
| 2 | Non-Inverting Input (+) | Ground-referenced input capable of operating down to 0 V common-mode voltage. |
| 3 | Output | Rail-to-rail output stage sinks or sources ≥8 mA; swings within 86 mV of V− and 0.11 V of V+ at 5 V supply. |
| 4 | V− (GND) | Ground reference terminal; must be low-impedance connection to minimize noise coupling and PSRR degradation. |
| 5 | V+ | Positive supply rail (2.7–5.0 V); decoupling capacitor required within 1 cm for stability under dynamic load. |
Key Features
| Feature | Design Value |
|---|---|
| Low input voltage noise | 6.5 nV/√Hz @ 1 kHz - preserves SNR in microphone preamps and strain-gauge bridges with <10 kΩ source impedance. |
| Ground-referenced inputs | 0 V minimum common-mode voltage - simplifies single-supply sensor interface without level-shifting circuitry. |
| Rail-to-rail output | Swings to within 86 mV of GND and 110 mV of V+ at 5 V - maximizes dynamic range into SAR ADCs with 0–VREF input range. |
| Unity-gain stable | No external compensation required - reduces BOM count and layout area in gain-of-1 buffer or active filter configurations. |
| Low supply current | 500 µA typ. at 2.7 V - extends battery life in wearable health monitors and IoT edge nodes operating >1 year on CR2032. |
Applications
| Portable Audio Front-End | Medical Sensor Signal Chain |
|---|---|
|
Use Scenario: Amplifying electret microphone output in Bluetooth earbuds before ADC sampling. IC Role / Device Role / Timing Role: Low-noise, single-supply preamplifier with DC-coupled gain and rail-to-rail output swing. Use Value: 6.5 nV/√Hz noise floor preserves voice SNR; 500 µA supply current enables >10-hour playback on 80 mAh battery. |
Use Scenario: Conditioning ECG electrode signals in disposable patch monitors. IC Role / Device Role / Timing Role: Instrumentation-grade buffer and gain stage with ultra-low input bias current. Use Value: 1.5 pA max input bias current prevents electrode polarization drift; ground-referenced inputs simplify electrode biasing. |
| RF Receiver IF Amplifier | Industrial Current Loop Receiver |
|
Use Scenario: Amplifying 455 kHz IF signal in handheld spectrum analyzers. IC Role / Device Role / Timing Role: Stable, low-distortion gain block with 4.5 MHz GBP and low harmonic generation. Use Value: 120 dB open-loop gain ensures <0.01% gain error over temperature; 1000 pF drive capability supports integrated ceramic filters. |
Use Scenario: Converting 4–20 mA loop current to 0–2.5 V for microcontroller ADC input. IC Role / Device Role / Timing Role: Precision I-to-V converter with low VOS and high CMRR for noise rejection. Use Value: 0.05 mV typical VOS limits full-scale error to <0.002%; 100 dB CMRR rejects common-mode noise from long industrial wiring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, low-power op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV6741IDBVR | Higher GBW (10 MHz), higher supply current (1.2 mA), same SOT-23-5 package. | Better suited for higher-frequency active filters or faster settling requirements. | Select when bandwidth >6 MHz is needed and 2× supply current is acceptable. |
| OPA333AIDBVR | Zero-drift architecture, 0.01 µV/°C drift, 17 µV max VOS, but higher noise (5.5 µVPP in 0.1–10 Hz). | Preferred for ultra-stable DC-coupled systems where drift dominates over broadband noise. | Choose for precision weighing or thermocouple amplification where long-term offset stability is critical. |
Compared with TLV6741IDBVR and OPA333AIDBVR, the LMV751M5X/NOPB offers the optimal balance of sub-7 nV/√Hz noise, 500 µA quiescent current, and ground-referenced inputs - making it uniquely suitable for portable, battery-constrained, wideband analog front-ends where both noise and power are tightly bounded.
Availability
LMV751M5X/NOPB is available at Aetrix Electronics and suitable for portable medical devices, wireless audio accessories, RF test equipment, and industrial 4–20 mA receivers requiring stable component supply across multi-year production cycles.
Supply support for LMV751M5X/NOPB 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in high-performance analog ICs.
The LMV751M5X/NOPB belongs to TI's precision low-power op amp portfolio, designed specifically for space-constrained, battery-operated systems demanding low noise, low offset, and rail-to-rail operation without sacrificing stability or drive capability.
FAQ
What is the maximum capacitive load the LMV751M5X/NOPB can drive without instability?
The LMV751M5X/NOPB is characterized to drive up to 1000 pF capacitive loads while maintaining phase margin and unity-gain stability per the datasheet. Driving larger loads requires series isolation resistance or careful compensation per Application Hints Section 8. This capability allows direct connection to ADC input capacitors and ceramic filter networks without added buffer stages.
Does the LMV751M5X/NOPB support true rail-to-rail input operation?
No - the LMV751M5X/NOPB features ground-referenced inputs (0 V minimum common-mode voltage) but requires ~1.3 V headroom from V+; its input common-mode range extends from 0 V to 3.6 V at 5 V supply. True rail-to-rail input would require operation down to V+; this device prioritizes low noise and low VOS over full-rail input range.
Can the LMV751M5X/NOPB be used as a comparator?
The LMV751M5X/NOPB is not recommended for comparator use. Its unity-gain compensation limits speed, and open-loop operation causes output stage saturation and elevated supply current (20–30 mA). Datasheet Application Hints explicitly advise against comparator use and recommend dedicated comparators like TLV3691 for such functions.
What is the thermal resistance θJA for the LMV751M5X/NOPB in SOT-23-5 package?
The LMV751M5X/NOPB in DBV (SOT-23-5) package has a typical junction-to-ambient thermal resistance (θJA) of 274°C/W when soldered directly onto a PCB in still air. This value assumes standard JEDEC 2-layer board conditions; actual θJA improves with copper pour and thermal vias.
Is the LMV751M5X/NOPB RoHS compliant and lead-free?
Yes - the LMV751M5X/NOPB is RoHS compliant and features lead-free terminations with NiPdAu (NIPDAU) or Sn (SN) finish, as confirmed in TI's Packaging Information Addendum. It meets JEDEC Level-1 moisture sensitivity rating and supports standard Pb-free reflow profiles up to 260°C peak.
LMV751M5X/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 2.3V/µs
- Gain Bandwidth Product:
- 5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1.5 pA
- Voltage - Input Offset:
- 50 µV
- Current - Supply:
- 600µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMV751M5X/NOPB FAQ
1.How can I place an order for LMV751M5X/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV751M5X/NOPB 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 LMV751M5X/NOPB reliable?
The price and inventory of LMV751M5X/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV751M5X/NOPB is usually 5 days.
3.What payment methods are accepted for LMV751M5X/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV751M5X/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV751M5X/NOPB?
LMV751M5X/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV751M5X/NOPB 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 LMV751M5X/NOPB?
For technical support, including LMV751M5X/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV751M5X/NOPB requirements.
6.How does Aetrix verify that LMV751M5X/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV751M5X/NOPB 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 LMV751M5X/NOPB meets industry standards.
7.What is the process for return or replacement of LMV751M5X/NOPB?
All LMV751M5X/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV751M5X/NOPB, 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 LMV751M5X/NOPB part is unused and in its original packaging.
Return procedure for LMV751M5X/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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