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Texas Instruments LMV341MGX/NOPB
- Part No.:
- LMV341MGX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
LMV341MGX/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:7,471
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Product details
Overview
LMV341MGX/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 - enabling precision signal conditioning in battery-powered systems such as voltage monitoring, sensor buffering, and audio line drivers.
For engineers reviewing the LMV341MGX/NOPB datasheet, LMV341MGX/NOPB pinout, LMV341MGX/NOPB application, or LMV341MGX/NOPB equivalent, key selection criteria include its 20 fA input bias current, −40°C to +125°C operating range, SC70-6 package footprint, and verified rail-to-rail output swing within 24 mV of rails (at 2.7 V, RL = 2 kΩ).
Technical Context
The LMV341MGX/NOPB employs a patented Class AB turnaround stage that reduces input-referred voltage noise to 29 nV/√Hz at 10 kHz while maintaining low quiescent current. Its PMOS input stage enables ultra-low input bias current (20 fA typical) and high input impedance, critical for high-impedance sensor interfaces and precision integrators.
It operates from 2.7 V to 5.5 V single supply, supports rail-to-rail output swing (within 24–60 mV of V+ and GND), and features an active-low SHDN pin with 5 µs turn-on time. The device is specified across industrial-plus temperature range (−40°C to +125°C) and exhibits 56 dB minimum CMRR and 65 dB minimum PSRR at 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V single supply - compatible with Li-ion, 3.3 V, and 5 V systems without level shifting. |
| Gain Bandwidth Product | 1 MHz - supports stable unity-gain buffer and low-frequency filtering up to ~100 kHz with phase margin ≥70°. |
| Slew Rate | 1 V/µs - enables clean 100 kHz sine wave output at 1 VPP without distortion in unity-gain configuration. |
| Input Bias Current | 20 fA typical - minimizes voltage error in high-impedance feedback networks (>100 MΩ) and photodiode amplifiers. |
| Shutdown Supply Current | 45 pA typical - extends battery life in intermittent-sampling applications like portable data loggers. |
| Input Offset Voltage | 0.25 mV typical (25°C, 2.7 V) - ensures <1 mV total error in DC-coupled sensor front-ends over full temperature range. |
| Output Swing (2.7 V, RL = 2 kΩ) | Within 24 mV of V+ and 60 mV of GND - delivers true rail-to-rail dynamic range for ADC driver stages. |
Pinout & Package
LMV341MGX/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 node accepting sensor, reference, or signal source; accepts common-mode voltage up to V+ − 0.2 V. |
| GND (Pin 2) | Negative supply | Reference return path; must be low-impedance connection to minimize noise coupling into sensitive inputs. |
| −IN (Pin 3) | Inverting input | Feedback node for closed-loop configurations; matched to +IN for optimal CMRR performance. |
| OUT (Pin 4) | Amplifier output | Rail-to-rail capable output driving loads down to 2 kΩ; tri-stated during shutdown mode. |
| SHDN (Pin 5) | Active-low shutdown enable | Pulled low (<0.8 V) disables amplifier and reduces supply current to ≤1 µA; pulled high (>2.4 V at 2.7 V supply) enables operation. |
| V+ (Pin 6) | Positive supply | Single-supply input accepting 2.7–5.5 V; decoupling capacitor (≥100 nF) required near pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 24 mV of V+ and 60 mV of GND at 2.7 V - maximizes dynamic range when interfacing with 12-bit ADCs or low-voltage logic. |
| 20 fA input bias current | Enables use with >100 MΩ feedback resistors without significant offset drift - ideal for pH electrodes and piezoelectric sensors. |
| 45 pA shutdown current | Reduces system standby power by >99.9% vs active mode - critical for multi-year battery life in IoT endpoint devices. |
| 1 MHz GBW with 100 µA supply | Delivers usable bandwidth per unit current - 10× more efficient than legacy rail-to-rail op-amps at same frequency. |
| −40°C to +125°C operation | Validated performance across automotive under-hood and industrial ambient extremes - no derating required. |
Applications
| Battery Voltage Monitoring | Portable Audio Line Driver |
|---|---|
Use Scenario: Real-time measurement of Li-ion cell voltage during charge/discharge cycles in wearables and handhelds. IC Role / Device Role / Timing Role: Precision buffer and level-shifter between battery sense point and SAR ADC input. Use Value: 0.25 mV offset and 20 fA bias current prevent measurement drift across temperature and aging, ensuring ±5 mV accuracy over full life cycle. |
Use Scenario: Driving stereo headphone outputs or line-level signals in Bluetooth earbuds and portable media players. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail output buffer isolating DAC output from variable load impedance. Use Value: 29 nV/√Hz input noise and 1 V/µs slew rate preserve audio fidelity up to 20 kHz with THD+N <0.017% at 1 kHz. |
| Supply Current Sensing | Capacitive Touch Sensor Front-End |
Use Scenario: High-side current monitoring in USB-C PD adapters and smart battery packs using shunt resistor sensing. IC Role / Device Role / Timing Role: Precision difference amplifier with shutdown control synchronized to measurement bursts. Use Value: Shutdown current ≤1 µA eliminates background error during idle periods; 5 µs wake-up enables sub-100 µs sampling windows. |
Use Scenario: Amplifying weak capacitance delta signals (sub-1 fF) from projected-capacitive touch panels in tablets and POS terminals. IC Role / Device Role / Timing Role: Ultra-low-input-current transimpedance amplifier converting capacitive change to measurable voltage. Use Value: 20 fA bias current prevents signal corruption from leakage paths; rail-to-rail output fully utilizes ADC reference range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001T-E/OT | No shutdown pin; 100 µA supply current; 1.2 MHz GBW; 0.6 mV max VOS (−40°C to +125°C) | Lacks power-gating capability; better for always-on low-bandwidth sensing where shutdown is unnecessary. | Select when board layout cannot accommodate SHDN routing and continuous operation is acceptable. |
| TLV9001IDBVR | Includes shutdown; 170 µA supply current; 1 MHz GBW; 0.25 mV max VOS; 0.5 pA input bias current | Higher input bias current limits use with >10 MΩ sources; wider supply range (1.8–5.5 V). | Prefer when lower VOS spec is mandatory and 0.5 pA bias suffices - e.g., resistive sensor bridges. |
Compared with MCP6001T-E/OT and TLV9001IDBVR, LMV341MGX/NOPB uniquely combines 20 fA input bias current, 45 pA shutdown current, and guaranteed rail-to-rail output swing in SC70 - making it optimal for ultra-high-impedance, battery-limited, and space-constrained designs.
Availability
LMV341MGX/NOPB is available at Aetrix Electronics and suitable for battery monitoring, portable audio line driving, and supply current sensing requiring stable component supply and long-term manufacturability.
Supply support for LMV341MGX/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 series was engineered specifically for low-voltage, low-power portable applications - emphasizing minimal PCB area, extended battery life, and robust performance across −40°C to +125°C.
FAQ
What is the maximum capacitive load the LMV341MGX/NOPB can drive stably?
The LMV341MGX/NOPB remains stable with capacitive loads up to 100 pF when configured as a unity-gain buffer (RL = 100 kΩ). For loads >100 pF, external isolation resistance (≥100 Ω) in series with the output is recommended to maintain ≥70° phase margin, as confirmed in Figure 26 of the SNOS990H datasheet.
Does the LMV341MGX/NOPB support dual-supply operation?
Yes, the LMV341MGX/NOPB supports dual-supply operation with V+ and V− pins (GND referenced to V−). The datasheet specifies operation from ±1.35 V to ±2.75 V (total supply 2.7 V to 5.5 V), and all AC/DC parameters - including rail-to-rail output swing - are validated under dual-supply conditions.
How does the shutdown function affect the output state of the LMV341MGX/NOPB?
When the SHDN pin is pulled low (<0.8 V), the LMV341MGX/NOPB enters shutdown mode: supply current drops to ≤1 µA, and the output is actively tri-stated (high-impedance). This prevents loading of downstream circuitry and eliminates DC path errors in multiplexed or shared-bus configurations.
Is the LMV341MGX/NOPB RoHS-compliant and lead-free?
Yes, LMV341MGX/NOPB is RoHS-compliant and lead-free. The "/NOPB" suffix explicitly denotes lead-free (Pb-free) packaging per JEDEC J-STD-609, and the device meets TI's green chemistry requirements for halogen-free substrates and molding compounds.
What is the typical input-referred voltage noise of the LMV341MGX/NOPB at 1 kHz?
The LMV341MGX/NOPB exhibits 40 nV/√Hz typical input-referred voltage noise at 1 kHz (per Section 6.6 of SNOS990H). This value increases slightly below 1 kHz due to PMOS input architecture but drops to 29 nV/√Hz at 10 kHz - a key advantage for mid-frequency sensor signal chains.
LMV341MGX/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
LMV341MGX/NOPB FAQ
1.How can I place an order for LMV341MGX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV341MGX/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 LMV341MGX/NOPB reliable?
The price and inventory of LMV341MGX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV341MGX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV341MGX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV341MGX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV341MGX/NOPB?
LMV341MGX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV341MGX/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 LMV341MGX/NOPB?
For technical support, including LMV341MGX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV341MGX/NOPB requirements.
6.How does Aetrix verify that LMV341MGX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV341MGX/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 LMV341MGX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV341MGX/NOPB?
All LMV341MGX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV341MGX/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 LMV341MGX/NOPB part is unused and in its original packaging.
Return procedure for LMV341MGX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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