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Texas Instruments LMV342MM/NOPB
- Part No.:
- LMV342MM/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV342MM/NOPB.pdf
- Description:
- IC CMOS 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,887
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Product details
Overview
LMV342MM/NOPB from Texas Instruments is a dual rail-to-rail output CMOS operational amplifier optimized for low-voltage portable applications. It delivers 1 MHz gain bandwidth, 1 V/µs slew rate, and 100 µA supply current per channel at 2.7 V, with ultra-low 20 fA input bias current and −40°C to +125°C operating range - enabling precision signal conditioning in battery-powered sensor interfaces and portable audio circuits.
For engineers reviewing the LMV342MM/NOPB datasheet, LMV342MM/NOPB pinout, LMV342MM/NOPB application, or LMV342MM/NOPB equivalent, key selection criteria include its dual-channel rail-to-rail output architecture, 20 fA input bias current for high-impedance source compatibility, 100 µA per-amplifier quiescent current for extended battery life, and VSSOP-8 packaging for space-constrained PCB layouts.
Technical Context
The LMV342MM/NOPB implements a patented Class AB turnaround stage that reduces input-referred voltage noise (29 nV/√Hz at 10 kHz) and offset voltage while maintaining 1 V/µs slew rate and 1 MHz GBW. Its PMOS input stage enables 20 fA typical input bias current and rail-to-rail output swing within 24 mV of supply rails at 2 kΩ load.
It operates from 2.7 V to 5.5 V single-supply or ±1.35 V to ±2.75 V dual-supply, with guaranteed specifications across −40°C to +125°C. Input common-mode range extends from V− to (V+ − 0.2 V), supporting ground-sensing configurations without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct connection to Li-ion battery (3.0–4.2 V) or 3.3 V logic rails without regulation. |
| Gain Bandwidth Product | 1 MHz - enables stable unity-gain buffer or gain-of-10 amplification up to 100 kHz with phase margin ≥70°. |
| Slew Rate | 1 V/µs - ensures <1 µs settling time for 1 V step response, suitable for audio line drivers and sensor signal conditioning. |
| Input Bias Current | 20 fA (typ) - minimizes voltage error in high-impedance pH sensors, photodiode transimpedance stages, and RC filter networks. |
| Input Offset Voltage | 0.55 mV (typ) at 25°C - provides ≤5 mV max over full temperature range, enabling accurate DC-coupled amplification in battery monitoring. |
| Supply Current per Channel | 100 µA (typ) at 2.7 V - allows dual-channel operation with <200 µA total quiescent draw, critical for multi-day battery life in wearables. |
| Rail-to-Rail Output Swing | Within 24 mV of V+ and 30 mV of V− at 2 kΩ load - preserves dynamic range in single-supply systems with no negative rail. |
Pinout & Package
LMV342MM/NOPB is packaged in an 8-pin VSSOP (DGK) with nominal body size 3.00 mm × 3.00 mm, optimized for high-density portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A (Pin 1) | Output, Channel A | Amplified output of Channel A; rail-to-rail capable, internally buffered, tri-stated during shutdown (not applicable to LMV342-N). |
| IN A– (Pin 2) | Inverting Input, Channel A | Differential input node for Channel A; high-impedance PMOS input (20 fA bias) enables precision feedback networks. |
| IN A+ (Pin 3) | Noninverting Input, Channel A | Positive input for Channel A; supports DC-coupled sensor inputs down to V− (ground in single-supply mode). |
| V– (Pin 4) | Negative Supply Input | Low-side power rail; accepts 0 V (single-supply) or negative voltage (dual-supply); must be decoupled with 100 nF ceramic capacitor. |
| IN B+ (Pin 5) | Noninverting Input, Channel B | Positive input for Channel B; electrically isolated from Channel A; shares same V+ and V– rails. |
| IN B– (Pin 6) | Inverting Input, Channel B | Differential input node for Channel B; identical electrical characteristics to Pin 2, enabling matched dual-channel designs. |
| OUT B (Pin 7) | Output, Channel B | Amplified output of Channel B; independent of OUT A; supports separate load driving or differential output configurations. |
| V+ (Pin 8) | Positive Supply Input | High-side power rail; accepts 2.7–5.5 V; requires local 100 nF ceramic bypass capacitor placed ≤2 mm from pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Swings within 24 mV of V+ and 30 mV of V− at 2 kΩ load - maximizes usable signal range in 3.3 V or lower supply systems. |
| Class AB turnaround architecture | Reduces input voltage noise to 29 nV/√Hz at 10 kHz and lowers input offset drift to 1.7 µV/°C - improves accuracy in temperature-varying environments. |
| Ultra-low input bias current | 20 fA typical - eliminates significant error in high-Z sensor interfaces (e.g., electrochemical sensors, piezoelectric pickups) without guard traces. |
| Wide temperature range | Specified from −40°C to +125°C - supports automotive cabin modules, industrial handheld testers, and outdoor IoT edge nodes. |
| Low quiescent current | 100 µA per amplifier at 2.7 V - enables always-on sensor signal conditioning in battery-powered devices with multi-week runtime. |
Applications
| Battery Monitoring | Portable Audio Line Driver |
|---|---|
|
Use Scenario: Real-time measurement of cell voltage and charge/discharge current in Li-ion battery packs for wearables and medical devices. IC Role / Device Role / Timing Role: Dual-channel op-amp configured as precision difference amplifier (Channel A) and current-sense amplifier (Channel B) with rail-to-rail output for ADC input scaling. Use Value: 20 fA input bias current prevents loading of high-resistance voltage divider networks; 0.55 mV offset ensures ≤10 mV absolute error over full temperature range. |
Use Scenario: Driving stereo headphone outputs or line-level signals from portable media players and Bluetooth audio receivers. IC Role / Device Role / Timing Role: Dual-channel non-inverting buffer with unity gain and 1 V/µs slew rate to preserve audio fidelity up to 20 kHz without distortion. Use Value: Rail-to-rail output swing delivers full 3.3 Vpp signal into 32 Ω loads; 100 µA per channel enables dual-channel operation on coin-cell batteries. |
| Capacitive Touch Sensor Front-End | Industrial Temperature Transmitter |
|
Use Scenario: Amplifying weak capacitance-change signals (sub-fF) from projected-capacitive touch panels in smartphones and tablets. IC Role / Device Role / Timing Role: Transimpedance amplifier (Channel A) converting pA-level sensor currents to voltage, with Channel B used for reference signal conditioning. Use Value: 20 fA input bias current avoids signal corruption in high-gain TIA configurations; 1 MHz GBW supports fast touch response (<10 ms latency). |
Use Scenario: Signal conditioning for 4–20 mA loop-powered temperature transmitters in factory automation and building management systems. IC Role / Device Role / Timing Role: Dual-channel amplifier performing cold-junction compensation (Channel A) and linearization amplification (Channel B) before DAC or current-output stage. Use Value: −40°C to +125°C operating range matches industrial ambient requirements; 1.7 µV/°C offset drift minimizes calibration frequency in field-deployed units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel low-power operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6022-E/SN | Higher 170 µA supply current per channel; 2.5 V to 5.5 V range; 10 µV max VOS at 25°C; no extended temperature grade beyond 125°C. | Preferred where lower offset is prioritized over battery life; less suitable for −40°C operation or sub-3 V supplies. | Select MCP6022-E/SN when ultra-low offset (≤10 µV) is required and supply voltage is ≥2.5 V; avoid for wide-temperature or ultra-low-power designs. |
| TSV912IDT | 2.5 V to 5.5 V range; 160 µA supply current; 1.3 MHz GBW; 3.5 mV max VOS over temperature; specified only to +105°C. | Better AC performance but higher power; limited temperature range excludes automotive under-hood or industrial high-temp use cases. | Choose TSV912IDT for higher-speed signal chains (>100 kHz) where 160 µA quiescent current is acceptable and ambient stays ≤105°C. |
Compared with LMV342MM/NOPB, MCP6022-E/SN offers tighter offset but consumes 70% more current and lacks −40°C rating, while TSV912IDT trades temperature robustness and ultra-low bias for marginal speed gain - making LMV342MM/NOPB optimal for extended-temperature, battery-sensitive dual-channel analog front-ends.
Availability
LMV342MM/NOPB is available at Aetrix Electronics and suitable for battery monitoring, portable audio line driving, capacitive touch sensing, and industrial temperature transmitter applications requiring stable component supply, long-term manufacturability, and guaranteed −40°C to +125°C performance.
Supply support for LMV342MM/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 specializing in analog and embedded processing technologies, with decades of expertise in precision amplifiers and low-power signal chain solutions.
The LMV34x-N product line was designed specifically for low-voltage portable electronics, delivering rail-to-rail output, ultra-low input bias current, and micropower operation - targeting space- and energy-constrained applications like wearables, handheld instruments, and battery-powered IoT endpoints.
FAQ
What is the operating temperature range for LMV342MM/NOPB?
The LMV342MM/NOPB is fully specified from −40°C to +125°C, with all key parameters-including input offset voltage, supply current, and gain bandwidth-guaranteed across this extended industrial temperature range. This makes LMV342MM/NOPB suitable for automotive cabin modules, industrial handheld testers, and outdoor environmental sensors where thermal stability is critical.
Does LMV342MM/NOPB include a shutdown feature?
No, LMV342MM/NOPB does not include a shutdown pin. The shutdown functionality is exclusive to the LMV341-N (single-channel) variant. LMV342MM/NOPB is a dual-channel amplifier with fixed enable; power control must be implemented externally via supply rail switching or enable circuitry if needed.
What package type is used for LMV342MM/NOPB?
LMV342MM/NOPB is supplied in an 8-pin VSSOP (Very Small Outline Package) with DGK designation, measuring 3.00 mm × 3.00 mm. This compact surface-mount package supports high-density PCB layouts in portable electronics and space-constrained industrial modules.
Can LMV342MM/NOPB operate from a single 3.3 V supply?
Yes, LMV342MM/NOPB is fully compatible with single 3.3 V supply operation. Its 2.7 V to 5.5 V supply range, rail-to-rail output stage, and input common-mode range extending to V− (0 V) allow direct interfacing with 3.3 V microcontrollers, ADCs, and sensors without level-shifting components.
What is the typical input bias current of LMV342MM/NOPB?
The typical input bias current of LMV342MM/NOPB is 20 fA at 25°C, enabled by its PMOS input stage. This ultra-low value minimizes voltage errors in high-impedance applications such as pH electrode buffers, photodiode transimpedance amplifiers, and precision RC timing networks.
LMV342MM/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- 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:
- 700 µV
- Current - Supply:
- 107µA (x2 Channels)
- 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:
- 8-VSSOP
LMV342MM/NOPB FAQ
1.How can I place an order for LMV342MM/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV342MM/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 LMV342MM/NOPB reliable?
The price and inventory of LMV342MM/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV342MM/NOPB is usually 5 days.
3.What payment methods are accepted for LMV342MM/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV342MM/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV342MM/NOPB?
LMV342MM/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV342MM/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 LMV342MM/NOPB?
For technical support, including LMV342MM/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV342MM/NOPB requirements.
6.How does Aetrix verify that LMV342MM/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV342MM/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 LMV342MM/NOPB meets industry standards.
7.What is the process for return or replacement of LMV342MM/NOPB?
All LMV342MM/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV342MM/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 LMV342MM/NOPB part is unused and in its original packaging.
Return procedure for LMV342MM/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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