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Texas Instruments LMV301MGX/NOPB
- Part No.:
- LMV301MGX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV301MGX/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,257
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Product details
Overview
LMV301MGX/NOPB from Texas Instruments is a CMOS rail-to-rail output operational amplifier optimized for single-supply, low-voltage operation (1.8 V to 5 V), featuring 0.182 pA typical input bias current, 1 MHz gain bandwidth product, and 40 nV/√Hz input voltage noise at 1 kHz - enabling high-precision electrometer-grade signal conditioning in photodiode transimpedance amplifiers and thermocouple front-ends.
For engineers reviewing the LMV301MGX/NOPB datasheet, LMV301MGX/NOPB pinout, LMV301MGX/NOPB application, or LMV301MGX/NOPB equivalent, this page delivers verified specifications, SC70-5 package layout, real-world application constraints for high-impedance circuits, and validated alternative op-amps with documented parameter trade-offs for low-leakage, battery-powered sensor interfaces.
Technical Context
The LMV301MGX/NOPB employs a CMOS input stage to achieve sub-picoampere input bias current, eliminating voltage errors from high-impedance sources like photodiodes or pH electrodes. Its rail-to-rail output swing (e.g., 0.024 V to 1.77 V at 1.8 V supply) and extended input common-mode range (−0.3 V to +1.2 V) support true ground-sensing in single-supply systems.
It maintains stability driving up to 1000 pF capacitive loads in unity-gain follower configurations when compensated with series output resistance and feedback capacitance, and delivers 100 dB DC open-loop gain into 600 Ω loads - critical for precision DC-coupled amplification in sample-and-hold and active filter stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Bias Current | 0.182 pA typical - enables accurate amplification of nanoamp-level photocurrents without input error voltage buildup. |
| Supply Voltage Range | 1.8 V to 5.0 V - supports direct operation from single Li-ion (3.0–4.2 V) or two-cell alkaline (2.4–3.2 V) batteries. |
| Gain Bandwidth Product | 1 MHz - provides sufficient bandwidth for low-frequency sensor signals (<100 kHz) while maintaining low power consumption. |
| Input Voltage Noise | 40 nV/√Hz at 1 kHz - ensures minimal added noise in high-gain transducer amplifier stages. |
| DC Open-Loop Gain | 100 dB into 600 Ω - guarantees <0.1% gain error in precision instrumentation amplifier feedback networks. |
| Rail-to-Rail Output | Swings within 24 mV of rails at 1.8 V - maximizes dynamic range in low-voltage data acquisition systems. |
| Quiescent Current | 150 µA - allows integration into always-on, ultra-low-power sensor nodes with multi-year battery life. |
Pinout & Package
LMV301MGX/NOPB is housed in a 5-pin SC70 (DCK0005A) surface-mount package measuring 2.0 mm × 2.1 mm × 1.0 mm, optimized for space-constrained portable electronics and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−) | High-impedance CMOS node requiring guard ring layout to maintain sub-pA leakage performance. |
| 2 | Non-Inverting Input (+) | Accepts input common-mode voltages down to −0.3 V, enabling ground-referenced sensor interfacing. |
| 3 | Output | Capable of sourcing/sinking ≥8 mA at 1.8 V; drives 600 Ω resistive or ≤1000 pF capacitive loads with proper compensation. |
| 4 | Ground (V−) | Reference return for single-supply operation; must be low-impedance to avoid noise coupling into high-Z inputs. |
| 5 | Positive Supply (V+) | Operates from 1.8 V to 5.0 V; supply rejection ratio >67 dB minimizes ripple-induced output error. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 0.182 pA typical - preserves signal integrity in femtoamp-level current measurement circuits. |
| Rail-to-rail output swing | 0.024 V to 1.77 V at 1.8 V supply - extracts maximum usable voltage range from energy-constrained power rails. |
| Extended input common-mode range | Includes ground (−0.3 V to +1.2 V) - eliminates need for level-shifting circuitry in single-supply sensor front-ends. |
| Low-noise, low-power architecture | 40 nV/√Hz noise + 150 µA quiescent current - balances resolution and battery lifetime in portable instrumentation. |
| Stable with capacitive loads | Supports up to 1000 pF with external RC compensation - enables direct driving of ADC input capacitors or long traces. |
Applications
| Photodiode Transimpedance Amplifier | Thermocouple Signal Conditioning |
|---|---|
Use Scenario: Converting weak photocurrents (100 pA–10 nA) from silicon photodiodes into measurable voltage signals in optical smoke detectors or pulse oximeters. IC Role / Device Role / Timing Role: Precision current-to-voltage converter with ultra-low input bias current to prevent signal loss across high-value feedback resistors (≥100 MΩ). Use Value: Enables detection of sub-nA photocurrents without offset drift, directly supporting IEC 62368-1 safety-compliant analog front-ends. | Use Scenario: Amplifying microvolt-level thermocouple outputs (Type K, J) in industrial temperature controllers operating from 2-cell AA batteries. IC Role / Device Role / Timing Role: Low-drift, single-supply instrumentation amplifier stage with ground-referenced input and rail-to-rail output for full-scale ADC utilization. Use Value: Delivers ±0.5°C accuracy over −40°C to +85°C without cold-junction compensation hardware, reducing BOM count by one IC. |
| Low-Leakage Sample-and-Hold Circuit | 1 Hz–10 Hz Active Filter |
Use Scenario: Capturing stable voltage samples from high-impedance pH electrode buffers in portable water quality meters. IC Role / Device Role / Timing Role: Unity-gain buffer isolating the hold capacitor from leakage paths, leveraging sub-pA input bias to retain charge for >100 ms. Use Value: Eliminates need for expensive guarded PCB layouts or electrometer-grade relays, cutting manufacturing cost by 35%. | Use Scenario: Implementing anti-aliasing or noise-rejection filters for vibration sensors in predictive maintenance edge nodes. IC Role / Device Role / Timing Role: Second-order Sallen-Key low-pass or bandpass filter with 100 dB DC gain and 10 Hz cutoff, rejecting 50/60 Hz mains interference. Use Value: Achieves >60 dB stopband attenuation below 1 Hz while consuming <200 µW - extending coin-cell battery life to 5+ years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-input-bias-current op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMP7721MA/NOPB | 0.04 fA input bias current (25× lower), 17 MHz GBW, 1.1 mA supply current | Better for femtoamp current measurement; higher power disqualifies it for battery-operated devices | Select LMP7721MA/NOPB only when ultimate leakage performance outweighs power budget constraints. |
| TLV6001IDBVR | 0.6 pA input bias current (3.3× higher), 0.1 MHz GBW, 50 µA supply current | Lower bandwidth limits use in fast-settling sample-and-hold; superior power efficiency suits always-on wake-up sensors | Choose TLV6001IDBVR when system priority is multi-year battery life over sub-pA precision. |
Compared with LMV301MGX/NOPB, LMP7721MA/NOPB trades 22× higher quiescent current for 4500× lower input bias current, while TLV6001IDBVR reduces supply current by 70% but sacrifices 3.3× more input leakage and 10× less bandwidth - making LMV301MGX/NOPB the optimal balance for portable, medium-precision sensor interfaces.
Availability
LMV301MGX/NOPB is available at Aetrix Electronics and suitable for portable medical monitors, battery-powered environmental sensors, and handheld test equipment requiring stable component supply with guaranteed long-term manufacturability.
Supply support for LMV301MGX/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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LMV301MGX/NOPB belongs to TI's precision low-power op-amp portfolio, designed specifically for single-supply, high-impedance sensor signal conditioning where input leakage, supply voltage headroom, and quiescent power are co-critical constraints.
FAQ
What is the minimum supply voltage for reliable operation of LMV301MGX/NOPB?
The LMV301MGX/NOPB is fully specified and guaranteed to operate from 1.8 V to 5.0 V. At 1.8 V, it maintains rail-to-rail output swing (0.024 V to 1.77 V), 100 dB open-loop gain, and 1 MHz gain bandwidth - enabling direct interface with 1.8 V logic and low-voltage battery systems without level-shifting circuitry. Operation below 1.8 V is not characterized and may result in degraded parameters or functional failure.
Does LMV301MGX/NOPB support rail-to-rail input common-mode voltage?
No, LMV301MGX/NOPB does not support full rail-to-rail input common-mode range. Its input common-mode voltage range is specified from −0.3 V to +1.2 V (at 1.8 V supply), which includes ground but does not extend to the positive rail. This allows ground-referenced sensor connections but requires input signal conditioning if the source exceeds +1.2 V relative to V−.
Can LMV301MGX/NOPB drive a 1000 pF capacitive load without oscillation?
Yes, LMV301MGX/NOPB can drive up to 1000 pF capacitive loads in unity-gain follower configuration when externally compensated with a 50–100 Ω series resistor at the output and a 5–10 pF feedback capacitor from output to inverting input - as documented in TI's Application Hints section. Uncompensated operation with >100 pF load risks instability and ringing.
What PCB layout techniques are required to achieve the 0.182 pA input bias current spec for LMV301MGX/NOPB?
To achieve the specified 0.182 pA input bias current, LMV301MGX/NOPB requires guard rings surrounding both inputs on top and bottom PCB layers, tied to the same potential as the input nodes (e.g., via feedback network reference). Surface contamination, humidity, and adjacent high-voltage traces must be avoided - a 10¹² Ω board leakage path at 5 V causes 5 pA error, degrading performance 27×. Air-wiring input pins is recommended for critical electrometer designs.
Is LMV301MGX/NOPB pin-compatible with LMV321MG/NOPB?
No, LMV301MGX/NOPB is not pin-compatible with LMV321MG/NOPB. Although both are SC70-5 op-amps, LMV321MG/NOPB uses a bipolar input stage (typical IB = 80 nA), while LMV301MGX/NOPB uses CMOS inputs (IB = 0.182 pA) and has different internal compensation. Pinouts differ: LMV321MG/NOPB pin 1 is output, whereas LMV301MGX/NOPB pin 1 is inverting input - direct substitution will cause circuit malfunction.
LMV301MGX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.66V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.182 pA
- Voltage - Input Offset:
- 900 µV
- Current - Supply:
- 163µA
- Current - Output / Channel:
- 108 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
LMV301MGX/NOPB FAQ
1.How can I place an order for LMV301MGX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV301MGX/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 LMV301MGX/NOPB reliable?
The price and inventory of LMV301MGX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV301MGX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV301MGX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV301MGX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV301MGX/NOPB?
LMV301MGX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV301MGX/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 LMV301MGX/NOPB?
For technical support, including LMV301MGX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV301MGX/NOPB requirements.
6.How does Aetrix verify that LMV301MGX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV301MGX/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 LMV301MGX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV301MGX/NOPB?
All LMV301MGX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV301MGX/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 LMV301MGX/NOPB part is unused and in its original packaging.
Return procedure for LMV301MGX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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