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Texas Instruments LMV341MG
- Part No.:
- LMV341MG
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
LMV341MG.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,322
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Product details
Overview
LMV341MG from Texas Instruments is a single-channel, rail-to-rail output CMOS operational amplifier with active-low shutdown control, designed for ultra-low-power portable systems. It delivers 1 MHz gain bandwidth, 1 V/µs slew rate, 29 nV/√Hz input voltage noise at 10 kHz, and consumes only 100 µA quiescent current per amplifier - dropping to 45 pA in shutdown mode. It operates from 2.7 V to 5.5 V and supports industrial-plus temperature range (−40°C to +125°C), making it ideal for battery monitoring and supply current sensing in space-constrained handheld devices.
For engineers reviewing the LMV341MG datasheet, LMV341MG pinout, LMV341MG application, or LMV341MG equivalent, this page provides verified specifications, SC70-6 package details, functional mode behavior, real-world use cases in portable electronics, and validated alternative options for low-voltage, low-noise signal conditioning.
Technical Context
The LMV341MG employs a patented Class AB turnaround stage that reduces input offset voltage, high-frequency noise, and quiescent power while maintaining 1-MHz bandwidth and 1-V/µs slew rate. Its PMOS input stage enables ultra-low 20 fA typical input bias current and high input impedance - critical for high-impedance sensor interfaces and precision current monitoring.
It features rail-to-rail output swing (within 24 mV of rails at 2 kΩ load, 2.7 V supply), 56–80 dB common-mode rejection, and 65–82 dB power supply rejection. The active-low SHDN pin disables the amplifier and tri-states the output, enabling system-level power gating without external switches.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion, Li-poly, and 3.3 V logic rails without level shifting. |
| Quiescent Current | 100 µA per amplifier - enables >10-year battery life in always-on monitoring circuits at 100 µA draw. |
| Shutdown Current | 45 pA typical - reduces standby power to negligible levels in sleep-mode portable systems. |
| Gain Bandwidth Product | 1 MHz - supports stable unity-gain buffers and low-pass filtering up to ~100 kHz with phase margin ≥70°. |
| Slew Rate | 1 V/µs - sufficient for 100-kHz full-scale sine wave output with <1% distortion at 1 VPP. |
| Input Offset Voltage | 0.25 mV typical (25°C, 2.7 V) - enables accurate DC-coupled amplification of mV-level sensor signals. |
| Input Voltage Noise | 29 nV/√Hz at 10 kHz - optimized for mid-frequency signal chains like audio preamps and ADC drivers. |
| Operating Temperature | −40°C to +125°C - qualified for automotive cabin modules, industrial handhelds, and extended-environment IoT nodes. |
Pinout & Package
LMV341MG is housed in a 6-pin SC70 package (2.00 mm × 1.25 mm body size), optimized for ultra-dense PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN (Pin 1) | Noninverting input | High-impedance PMOS node accepting sensor, reference, or feedback signals; 20 fA bias current minimizes loading on high-Z sources. |
| GND (Pin 2) | Negative supply terminal | Reference return path for single-supply operation; must be low-impedance to maintain PSRR and noise immunity. |
| −IN (Pin 3) | Inverting input | Differential input node used in transimpedance, inverting amplifier, or comparator configurations with precise gain control. |
| OUT (Pin 4) | Amplifier output | Rail-to-rail capable output driving ADC inputs, filters, or low-power displays; tri-stated during shutdown. |
| SHDN (Pin 5) | Active-low shutdown enable | Pulled low (<0.8 V) to disable amplifier and reduce supply current to 45 pA; pulled high (>2.4 V at 2.7 V supply) to enable. |
| V+ (Pin 6) | Positive supply input | Primary power rail connection; accepts 2.7–5.5 V; internal regulation ensures stable biasing across voltage range. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 24 mV of V+ and GND at 2 kΩ load (2.7 V supply), enabling full dynamic range utilization in 3.3 V systems. |
| Ultra-low input bias current | 20 fA typical - preserves accuracy in high-impedance pH sensors, photodiode transimpedance amps, and leakage current monitors. |
| Shutdown mode | Reduces supply current to 45 pA and tri-states output - eliminates loading on downstream circuitry during sleep cycles. |
| Low input voltage noise | 29 nV/√Hz at 10 kHz - lower than most CMOS op-amps in same power class, improving SNR in audio and sensor front-ends. |
| Wide temperature range | Specified from −40°C to +125°C - supports operation in automotive infotainment, industrial handhelds, and outdoor IoT edge nodes. |
| Small-footprint SC70-6 | 2.00 mm × 1.25 mm footprint - saves >60% board area vs SOIC-8, critical for compact battery-powered PCBs. |
Applications
| Battery Monitoring | Portable Audio Preamp |
|---|---|
|
Use Scenario: Real-time measurement of cell voltage and charge/discharge current in lithium-ion battery packs for smartphones and wearables. IC Role / Device Role / Timing Role: Precision buffer and current-sense amplifier feeding into an integrated ADC, operating continuously at sub-100 µA total system current. Use Value: 0.25 mV offset and 29 nV/√Hz noise ensure ±1 mV voltage accuracy and <0.1% current-sense error over full temperature range. |
Use Scenario: Low-noise microphone preamplification in Bluetooth headsets and voice-controlled earbuds. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail input/output op-amp configured as non-inverting gain stage before audio codec ADC. Use Value: 1 V/µs slew rate supports 20 kHz audio bandwidth; 100 µA supply current extends talk-time without compromising fidelity. |
| Supply Current Monitoring | PCMCIA Interface Buffer |
|
Use Scenario: In-system monitoring of processor core or peripheral supply current for thermal management and power optimization. IC Role / Device Role / Timing Role: High-side current-sense amplifier with precision shunt resistor interface, operating from main 3.3 V rail. Use Value: 20 fA input bias prevents error in µA-range current measurements; shutdown mode enables periodic sampling to minimize average power. |
Use Scenario: Signal conditioning and level-shifting for legacy PCMCIA card interface lines in ruggedized industrial laptops. IC Role / Device Role / Timing Role: Rail-to-rail output buffer isolating host controller GPIOs from variable card load and ESD events. Use Value: SC70-6 footprint fits tight connector zones; 125°C rating ensures reliability in thermally stressed laptop chassis near CPU/GPU. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power, rail-to-rail output op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV851DBVR | Lower 50 µA supply current but no shutdown pin; 0.85 MHz GBW; 0.45 V/µs slew rate. | Lacks active power gating - unsuitable where microsecond wake-up latency or zero-quiescent standby is required. | Prefer TLV851DBVR only when absolute minimum active current dominates design priority and shutdown is handled externally. |
| OPA316IDBVR | Higher 400 µA supply current; 10 MHz GBW; 6 V/µs slew rate; includes EMI-hardened input structure. | Over-specified bandwidth and speed - increases cost and layout sensitivity without benefit in ≤100 kHz monitoring apps. | Choose OPA316IDBVR only if higher-speed signal chain (e.g., fast-settling ADC driver) justifies 4× higher current and larger die size. |
Compared with TLV851DBVR and OPA316IDBVR, LMV341MG uniquely balances ultra-low shutdown current (45 pA), integrated shutdown control, and sufficient 1-MHz/1-V/µs performance for battery-constrained DC and audio-signal applications - making it the optimal fit for portable equipment requiring both precision and power agility.
Availability
LMV341MG is available at Aetrix Electronics and suitable for battery monitoring, portable audio preamplification, and supply current sensing applications requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for LMV341MG 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 delivering analog, embedded processing, and connectivity solutions with deep expertise in low-power signal chain design.
The LMV34x-N family was engineered specifically for ultra-low-power, rail-to-rail output operation in space-constrained portable electronics - emphasizing minimal quiescent current, shutdown capability, and robust performance across extended temperature ranges.
FAQ
What is the maximum capacitive load the LMV341MG can drive stably?
The LMV341MG maintains stability with up to 100 pF capacitive load under unity-gain conditions (RL = 100 kΩ). For loads exceeding 100 pF, external isolation resistance (≥100 Ω) is recommended between output and capacitance to preserve phase margin above 70° and prevent peaking or oscillation - confirmed by TI's Figure 25 and Figure 26 in the SNOS990H datasheet. This behavior applies directly to LMV341MG in its SC70-6 package.
Does the LMV341MG support true single-supply operation with input common-mode range extending to ground?
Yes, the LMV341MG supports true single-supply operation with input common-mode voltage range from GND to (V+ − 0.2 V) at 2.7 V supply, and from GND to (V+ − 0.2 V) at 5 V supply - meeting the "beyond-the-rails" specification for ground-referenced sensors and DAC outputs. This is explicitly verified in Section 6.5 (VCM parameter) of the LMV341MG datasheet, ensuring reliable operation with inputs at 0 V in battery-powered systems.
What is the turn-on time from shutdown for the LMV341MG, and how is it measured?
The LMV341MG has a typical turn-on time of 5 µs from shutdown, defined as the delay between SHDN pin rising above the logic-high threshold (2.4 V at 2.7 V supply) and output settling within 1% of final value under loaded conditions (RL = 10 kΩ, CL = 200 pF). This value is measured per Section 6.5 (ton parameter) in the official SNOS990H datasheet and applies identically to the LMV341MG variant in SC70-6 packaging.
Can the LMV341MG be used in inverting amplifier configurations with gain greater than 10?
Yes, the LMV341MG supports stable inverting amplifier configurations with gains up to 100 when using appropriate feedback network values (e.g., RF = 1 MΩ, RG = 10 kΩ) and maintaining CL ≤ 50 pF at the inverting input. Its 1-MHz GBW ensures closed-loop bandwidth of ~10 kHz at AV = 100, and phase margin remains >60° per Figure 22 in the datasheet - verified for LMV341MG across its full operating temperature range.
Is the LMV341MG pin-compatible with other members of the LMV34x-N family, such as LMV342MG or LMV344MG?
No, the LMV341MG is not pin-compatible with LMV342MG (dual, 8-pin VSSOP/SOIC) or LMV344MG (quad, 14-pin TSSOP/SOIC). It uses a unique 6-pin SC70 footprint with dedicated SHDN functionality not present in the dual/quad variants. Pin mapping, package dimensions, and thermal characteristics differ fundamentally - confirmed in Table "Device Information" and Pin Configuration section of SNOS990H. Board redesign is required for substitution.
LMV341MG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.02 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 107µA
- Current - Output / Channel:
- 113 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-6
LMV341MG FAQ
1.How can I place an order for LMV341MG through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV341MG 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 LMV341MG reliable?
The price and inventory of LMV341MG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV341MG is usually 5 days.
3.What payment methods are accepted for LMV341MG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV341MG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV341MG?
LMV341MG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV341MG 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 LMV341MG?
For technical support, including LMV341MG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV341MG requirements.
6.How does Aetrix verify that LMV341MG is sourced from the original manufacturer or authorized distributors?
All LMV341MG 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 LMV341MG meets industry standards.
7.What is the process for return or replacement of LMV341MG?
All LMV341MG units undergo pre-shipment inspection (PSI). If there is an issue with LMV341MG, 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 LMV341MG part is unused and in its original packaging.
Return procedure for LMV341MG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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