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Texas Instruments LMV301MG
- Part No.:
- LMV301MG
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV301MG.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,393
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Product details
Overview
LMV301MG 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 photodetection and sensor front-ends.
For engineers reviewing the LMV301MG datasheet, LMV301MG pinout, LMV301MG application, or LMV301MG equivalent, this page delivers verified technical context, SC70-5 package mapping, real-world design meaning of key specs, and two validated alternative op amps for low-leakage, low-voltage analog signal chains.
Technical Context
The LMV301MG implements a CMOS input stage with rail-to-rail output swing and an input common-mode range extending to −0.3 V (below ground), supporting true single-supply operation down to 1.8 V. Its 1 MHz unity-gain bandwidth is achieved with only 150 µA supply current, delivering a high speed-power ratio ideal for battery-powered instrumentation.
It drives 600 Ω resistive loads and up to 1000 pF capacitive loads in unity-gain follower configurations, with DC open-loop gain of 100 dB and phase margin of 60°–70° across 1.8 V to 5 V supplies - ensuring stable operation without external compensation in most precision DC and low-frequency AC applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Bias Current | 0.182 pA typical - enables ultra-low-leakage transimpedance amplifiers for photodiode and ion-sensor signals without offset drift. |
| Supply Voltage Range | 1.8 V to 5.0 V - supports direct interface with Li-ion (3.0–4.2 V), two-cell alkaline (2.4–3.2 V), and regulated 1.8 V/3.3 V rails. |
| Gain Bandwidth Product | 1 MHz - provides sufficient bandwidth for 10 Hz–100 kHz sensor signal conditioning while maintaining low power. |
| Rail-to-Rail Output Swing | 0.024 V to 1.77 V at 1.8 V supply - maximizes dynamic range in low-voltage systems, preserving >98% of full-scale output swing. |
| Input Voltage Noise | 40 nV/√Hz at 1 kHz - ensures minimal added noise in high-gain, low-level signal amplification (e.g., thermocouple, strain gauge). |
| DC Open-Loop Gain | 100 dB - guarantees <0.1% gain error in closed-loop configurations with gains ≤100, critical for precision measurement. |
| Common-Mode Input Range | −0.3 V to +1.2 V at 1.8 V - includes ground and allows direct sensing of 0 V–reference signals without level-shifting. |
Pinout & Package
LMV301MG is housed in a 5-pin SC70 (DCK) package measuring 2.0 mm × 2.1 mm × 1.0 mm, optimized for space-constrained portable and wearable electronics. The package is RoHS-compliant, lead-finished with matte tin (SN), and rated MSL Level-1 (unlimited floor life at ≤30°C/60% RH).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Inverting Input (−) | Differential input node | Accepts feedback network connection; ultra-high impedance (≥1015 Ω) minimizes loading on high-Z sources like photodiodes. |
| Non-Inverting Input (+) | Differential input node | Reference input for follower or non-inverting gain stages; common-mode range includes ground for true single-supply DC coupling. |
| Output | Amplified signal source | Rail-to-rail swing supports full utilization of ADC input range; capable of sourcing/sinking ≥4 mA at 1.8 V. |
| V− (Ground) | Power reference | Connects to system ground; serves as return path for input bias current and output load current. |
| V+ | Positive supply | Accepts 1.8 V–5.0 V; internal regulation ensures stable operation across battery discharge profiles. |
Key Features
| Feature | Design Value |
|---|---|
| CMOS input architecture | Enables 0.182 pA input bias current - essential for electrometer circuits where leakage dominates error budget. |
| Rail-to-rail output stage | Delivers 0.024 V to 1.77 V swing at 1.8 V supply - preserves >98% of available dynamic range for low-voltage ADC interfacing. |
| 1 MHz GBW at 150 µA | Provides 10× higher bandwidth per µA than comparable micropower op amps - balances speed and battery life in portable sensors. |
| Stable with 1000 pF capacitive load | Eliminates need for isolation resistors in driving long traces or ADC sample capacitors - simplifies layout in compact PCBs. |
| −40°C to +85°C operating range | Validated performance across industrial temperature range - suitable for automotive cabin sensors and outdoor IoT nodes. |
Applications
| Photocurrent Amplification | Thermocouple Signal Conditioning |
|---|---|
Use Scenario: Converting nanoamp-level photocurrent from a reverse-biased photodiode into a measurable voltage using transimpedance configuration. IC Role / Device Role / Timing Role: Precision current-to-voltage converter with ultra-low input bias current to prevent signal loss and offset drift. Use Value: 0.182 pA input bias current ensures <0.1% error at 100 nA photocurrent, enabling detection of weak optical signals in medical pulse oximetry. | Use Scenario: Amplifying microvolt-level thermocouple outputs (e.g., Type-K, 41 µV/°C) while rejecting cold-junction errors and EMI. IC Role / Device Role / Timing Role: Low-noise, high-DC-gain instrumentation amplifier front-end with ground-referenced input capability. Use Value: 40 nV/√Hz noise and 100 dB open-loop gain enable resolution of <0.1°C temperature changes in HVAC and industrial process control. |
| Low-Leakage Sample-and-Hold | Single-Supply Active Filtering |
Use Scenario: Capturing and holding high-impedance sensor voltages (e.g., pH electrode, piezoelectric transducer) for ADC sampling. IC Role / Device Role / Timing Role: Unity-gain buffer with femtoamp-level input leakage to minimize hold-mode droop over milliseconds. Use Value: Sub-picoamp bias current extends hold time to >100 ms with <1 mV droop using 100 pF hold capacitor - critical for low-power data loggers. | Use Scenario: Implementing 10 Hz–100 Hz active filters (low-pass, high-pass, band-pass) in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Low-voltage, low-noise op amp in Sallen-Key or multiple-feedback topologies with rail-to-rail output swing. Use Value: 1 MHz GBW and rail-to-rail output ensure accurate filter response shape and full-scale amplitude retention at 1.8 V supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-input-bias-current, rail-to-rail-output op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV6001IDBVR | Higher input bias current (0.6 pA typ), lower noise (25 nV/√Hz), same SC70-5 package and 1.8 V min supply. | Better noise performance but 3.3× higher input leakage - less suitable for sub-100 nA photocurrent amplification. | Select TLV6001IDBVR when noise dominates error budget and input currents exceed 500 nA. |
| OPA316IDBVR | Higher supply current (400 µA), wider GBW (10 MHz), same 1.8 V min supply and rail-to-rail output. | Supports faster settling and higher-frequency filtering but reduces battery life by 2.7× in always-on sensor nodes. | Select OPA316IDBVR when bandwidth >1 MHz or settling time <1 µs is required in portable instrumentation. |
Compared with TLV6001IDBVR and OPA316IDBVR, the LMV301MG uniquely balances femtoamp-level input bias current, 1 MHz bandwidth, and 150 µA quiescent current - making it the optimal choice for battery-powered, high-impedance analog front-ends where leakage-induced offset and power efficiency are co-critical.
Availability
LMV301MG is available at Aetrix Electronics and suitable for photodetection systems, portable medical devices, and industrial sensor interfaces requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for LMV301MG 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 decades of expertise in precision op amp design and manufacturing.
The LMV301MG belongs to TI's low-voltage, low-power precision op amp product line, engineered specifically for battery-operated instrumentation, portable diagnostics, and high-impedance sensor signal conditioning where input leakage and supply headroom are limiting factors.
FAQ
What is the minimum supply voltage for reliable operation of the LMV301MG?
The LMV301MG 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), 1 MHz gain bandwidth, and 0.182 pA input bias current - enabling direct use with single-cell Li-ion or two-cell alkaline batteries throughout their discharge curve. Operation below 1.8 V is not characterized and may result in degraded performance or instability.
Does the LMV301MG support rail-to-rail input common-mode voltage?
The LMV301MG features a rail-to-rail *output* swing but its input common-mode voltage range is −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 true single-supply operation with ground-referenced inputs, but prohibits direct sensing of signals near V+. For full rail-to-rail input capability, consider alternatives like the TLV9001. The LMV301MG's input stage remains functional and accurate within its specified VCM range.
Can the LMV301MG drive a 1000 pF capacitive load without oscillation?
Yes - the LMV301MG is explicitly characterized to drive up to 1000 pF capacitive loads in unity-gain follower configurations without external compensation. This capability is confirmed in the datasheet's "Capacitive Load Tolerance" section and typical performance curves. However, for loads >500 pF, TI recommends adding a small series resistor (50 Ω–100 Ω) between the output and load to ensure robust phase margin across temperature and process variation. The LMV301MG's internal compensation is optimized for this behavior.
What is the maximum output current capability of the LMV301MG at 1.8 V supply?
At 1.8 V supply, the LMV301MG can source up to 4 mA and sink up to 3.3 mA while maintaining output voltage accuracy within specification. This is verified in the 1.8 V DC Electrical Characteristics table under "Output Short Circuit Current." Driving heavier loads will cause output voltage compression or thermal derating. For applications requiring >5 mA, the LMV301MG should be paired with an external buffer or replaced with a higher-output-current op amp such as the OPA316.
Is the LMV301MG suitable for thermocouple amplification in industrial environments?
Yes - the LMV301MG is well-suited for thermocouple signal conditioning in industrial settings due to its −40°C to +85°C operating temperature range, 100 dB DC open-loop gain (enabling precise cold-junction compensation), and 40 nV/√Hz input voltage noise at 1 kHz. Its 0.182 pA input bias current prevents significant offset errors when used with high-impedance thermocouple leads or RTD-based reference junctions. Layout best practices (guard rings, clean PCB surfaces) are recommended to preserve low-leakage performance in humid or dusty environments.
LMV301MG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
LMV301MG FAQ
1.How can I place an order for LMV301MG through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV301MG 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 LMV301MG reliable?
The price and inventory of LMV301MG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV301MG is usually 5 days.
3.What payment methods are accepted for LMV301MG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV301MG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV301MG?
LMV301MG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV301MG 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 LMV301MG?
For technical support, including LMV301MG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV301MG requirements.
6.How does Aetrix verify that LMV301MG is sourced from the original manufacturer or authorized distributors?
All LMV301MG 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 LMV301MG meets industry standards.
7.What is the process for return or replacement of LMV301MG?
All LMV301MG units undergo pre-shipment inspection (PSI). If there is an issue with LMV301MG, 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 LMV301MG part is unused and in its original packaging.
Return procedure for LMV301MG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV301MG Tags
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