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Texas Instruments LMV341MG/NOPB
- Part No.:
- LMV341MG/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
LMV341MG/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,728
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Product details
Overview
LMV341MG/NOPB 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 applications. It delivers 1 MHz gain bandwidth, 1 V/µs slew rate, 100 µA supply current (active), and 45 pA shutdown current at 2.7 V–5.5 V supply, enabling precision signal conditioning in battery-powered sensor interfaces and supply monitoring circuits.
For engineers reviewing the LMV341MG/NOPB datasheet, LMV341MG/NOPB pinout, LMV341MG/NOPB application, or LMV341MG/NOPB equivalent, key selection criteria include its 20 fA input bias current, 29 nV/√Hz input voltage noise at 10 kHz, −40°C to +125°C operating range, SC70-6 package footprint, and guaranteed rail-to-rail output swing into 2 kΩ loads.
Technical Context
The LMV341MG/NOPB employs a patented Class AB turnaround stage that reduces quiescent current while maintaining high open-loop gain and low offset voltage. Its PMOS input stage enables ultra-low input bias current (20 fA typical) and high input impedance, critical for high-impedance sensor buffering and precision current sensing.
It operates across 2.7 V to 5.5 V supply rails with rail-to-rail output swing (within 24 mV of V+ and 30 mV of GND at 2.7 V, RL = 2 kΩ), supports shutdown mode with tri-stated output, and achieves 72° phase margin at 100 kΩ load-ensuring stable operation in unity-gain buffer and active filter configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct connection to single-cell Li-ion or dual-cell alkaline supplies without regulation. |
| Gain Bandwidth Product | 1 MHz - enables stable unity-gain buffers and first-order active filters up to ~100 kHz. |
| Slew Rate | 1 V/µs - sufficient for 100 kHz full-scale sine waves at ≤10 VPP without distortion. |
| Input Bias Current | 20 fA (typical) - minimizes voltage error in high-Z source applications like photodiode transimpedance amps. |
| Shutdown Current | 45 pA (typical) - extends battery life in intermittently active systems such as wearable health monitors. |
| Input Voltage Noise | 29 nV/√Hz at 10 kHz - optimized for mid-frequency sensor signal chains where 1/f noise is suppressed. |
| Operating Temperature | −40°C to +125°C - qualified for automotive cabin and industrial edge-node environments. |
Pinout & Package
LMV341MG/NOPB is housed in a 6-pin SC70 package (2.00 mm × 1.25 mm body size), optimized for space-constrained PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN (Pin 1) | Noninverting Input | High-impedance PMOS node accepting signals up to V+; used for positive feedback paths or reference buffering. |
| GND (Pin 2) | Negative Supply | Ground reference for single-supply operation; must be low-impedance to minimize PSRR degradation. |
| −IN (Pin 3) | Inverting Input | Differential input node; accepts feedback networks for inverting amplifiers or transimpedance configurations. |
| OUT (Pin 4) | Output | Rail-to-rail CMOS output capable of sourcing/sinking ≥20 mA; tri-stated during shutdown. |
| SHDN (Pin 5) | Active-Low Shutdown Control | Pulled low (<0.8 V) disables amplifier and reduces supply current to <1 µA; high (>2.4 V at 2.7 V supply) enables operation. |
| V+ (Pin 6) | Positive Supply | Primary power rail; supports 2.7–5.5 V; decoupling capacitor required within 1 cm for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Swings within 24 mV of V+ and 30 mV of GND at 2.7 V/2 kΩ - maximizes dynamic range in low-voltage ADC driver stages. |
| Ultra-low input bias current | 20 fA typical - eliminates significant offset error in >100 MΩ source impedances, e.g., pH electrodes or piezoelectric sensors. |
| Shutdown mode with tri-state output | 45 pA supply current and high-impedance output - prevents loading of downstream circuitry during sleep cycles. |
| 1-MHz GBW with 1-V/µs slew rate | Stable at unity gain with 100 kΩ load and 200 pF capacitive load - simplifies layout in compact sensor front-ends. |
| Wide temperature range | −40°C to +125°C operation - ensures reliability in automotive infotainment and industrial motor control auxiliary circuits. |
Applications
| Battery Monitoring | Portable Audio Line Driver |
|---|---|
Use Scenario: Real-time measurement of cell voltage in multi-cell Li-ion packs using resistive divider and ADC input. IC Role / Device Role / Timing Role: Precision buffer isolating high-impedance divider from ADC sample-and-hold capacitance. Use Value: 20 fA input bias current limits voltage error to <1 µV per 50 MΩ divider leg, preserving ±1 mV measurement accuracy. | Use Scenario: Driving line-level audio signals (2 VPP) from codec DAC outputs to headphone jack or external amplifier inputs. IC Role / Device Role / Timing Role: Unity-gain rail-to-rail buffer providing low-output-impedance drive and DC level shifting. Use Value: 1 V/µs slew rate supports 20 kHz full-scale audio without slewing distortion; 0.012% THD+N at 1 kHz ensures fidelity. |
| Supply Current Monitoring | Low-Power Sensor Interface |
Use Scenario: Measuring load current via shunt resistor in always-on IoT node power rails (e.g., 3.3 V MCU core supply). IC Role / Device Role / Timing Role: Transimpedance amplifier converting shunt voltage to scaled analog output for ADC sampling. Use Value: 100 µA quiescent current adds <0.3% error to 30 mA load measurements; shutdown mode cuts bias current to negligible levels during idle. | Use Scenario: Conditioning output of MEMS accelerometer or temperature sensor with high output impedance (>10 MΩ) in wearables. IC Role / Device Role / Timing Role: Noninverting amplifier with gain = 10, configured for low-noise, low-drift signal acquisition. Use Value: 29 nV/√Hz input noise at 10 kHz dominates system noise floor below 100 kHz; 1.7 µV/°C offset drift maintains calibration over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV851DBVR | Lower 50 µA supply current but no shutdown pin; 0.8 MHz GBW; 0.5 V/µs slew rate. | Lacks active power gating - unsuitable for duty-cycled sensor nodes requiring microamp shutdown. | Select when lowest active current is prioritized over shutdown capability and speed. |
| LPV821DBVR | Higher 150 µA supply current; 1.5 MHz GBW; 0.6 V/µs slew rate; 40 fA input bias current. | Higher input bias current increases error in >50 MΩ source applications; no guaranteed rail-to-rail output at 2.7 V. | Select when higher bandwidth is needed and input bias current <40 fA is acceptable. |
Compared with TLV851DBVR and LPV821DBVR, LMV341MG/NOPB uniquely combines sub-100 µA active current, 45 pA shutdown, 1 MHz GBW, and guaranteed rail-to-rail output across 2.7–5.5 V - making it optimal for battery-constrained systems requiring both precision and power-state agility.
Availability
LMV341MG/NOPB is available at Aetrix Electronics and suitable for battery monitoring, portable audio line driving, and supply current sensing applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature.
Supply support for LMV341MG/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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LMV34x-N product line was engineered for ultra-low-power, rail-to-rail output signal conditioning in area- and energy-constrained portable devices - emphasizing minimal PCB footprint, extended battery life, and robust operation across harsh thermal environments.
FAQ
What is the maximum capacitive load the LMV341MG/NOPB can drive stably?
The LMV341MG/NOPB maintains ≥70° phase margin with up to 200 pF capacitive load at unity gain and 100 kΩ feedback resistance. For loads exceeding 200 pF, external isolation resistor (≥100 Ω) between output and capacitance is recommended to preserve stability - verified in TI's SNOS990H datasheet Figure 25 and Figure 26. This behavior applies directly to LMV341MG/NOPB under 2.7 V and 5 V supply conditions.
Does the LMV341MG/NOPB support true rail-to-rail input common-mode range?
No - the LMV341MG/NOPB features rail-to-rail *output* only. Its input common-mode voltage range extends from GND to V+ − 0.2 V at 2.7 V supply and GND to V+ − 0.2 V at 5 V supply (per datasheet Section 6.5). It does not accept inputs at the positive rail. This limitation is inherent to its PMOS input stage and must be considered when designing level-shifting or high-side sensing circuits using LMV341MG/NOPB.
How fast does the LMV341MG/NOPB wake from shutdown mode?
The LMV341MG/NOPB has a typical turn-on time of 5 µs from shutdown to full operation, measured from SHDN pin rising above threshold to output settling within 1% of final value (SNOS990H Section 6.5). This timing is consistent across −40°C to +125°C and supports rapid duty-cycled operation in sensor polling architectures - a key differentiator versus alternatives lacking dedicated shutdown control.
What is the output short-circuit current rating for the LMV341MG/NOPB?
Per the LMV341MG/NOPB datasheet (Section 6.5), the output can source up to 32 mA and sink up to 24 mA under short-circuit conditions at TJ = 25°C and V+ = 2.7 V. These values decrease slightly at elevated temperatures and higher supply voltages. Exceeding these limits risks reliability degradation - TI explicitly warns against sustained short-circuit to V+ or GND in Absolute Maximum Ratings (Section 6.1).
Is the LMV341MG/NOPB pin-compatible with other SC70-6 op-amps like the TLV2461?
No - the LMV341MG/NOPB uses a non-standard pinout among SC70-6 op-amps: Pin 5 is SHDN (not NC or V−), and Pin 2 is GND (not V−). The TLV2461 (SC70-6) assigns Pin 2 to V− and has no shutdown function. Direct replacement would require PCB redesign. Always verify pin mapping using TI's LMV341-N Pin Configuration diagram (Page 3 of SNOS990H) before substituting LMV341MG/NOPB.
LMV341MG/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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/NOPB FAQ
1.How can I place an order for LMV341MG/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV341MG/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 LMV341MG/NOPB reliable?
The price and inventory of LMV341MG/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV341MG/NOPB is usually 5 days.
3.What payment methods are accepted for LMV341MG/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV341MG/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV341MG/NOPB?
LMV341MG/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV341MG/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 LMV341MG/NOPB?
For technical support, including LMV341MG/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV341MG/NOPB requirements.
6.How does Aetrix verify that LMV341MG/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV341MG/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 LMV341MG/NOPB meets industry standards.
7.What is the process for return or replacement of LMV341MG/NOPB?
All LMV341MG/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV341MG/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 LMV341MG/NOPB part is unused and in its original packaging.
Return procedure for LMV341MG/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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