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Texas Instruments LMV342MAX/NOPB
- Part No.:
- LMV342MAX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV342MAX/NOPB.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
LMV342MAX/NOPB from Texas Instruments is a dual rail-to-rail output CMOS operational amplifier optimized for low-voltage portable applications. It operates from 2.7 V to 5.5 V, draws 100 µA per amplifier, delivers 1 MHz gain bandwidth and 1 V/µs slew rate, and features 20 fA input bias current - enabling precision sensing and battery-monitoring functions in space-constrained handheld electronics.
For engineers reviewing the LMV342MAX/NOPB datasheet, LMV342MAX/NOPB pinout, LMV342MAX/NOPB application, or LMV342MAX/NOPB equivalent, this page provides verified specifications, dual-channel pin mapping, real-world use cases in portable power monitoring and audio buffering, and two validated alternative op-amps with documented functional trade-offs.
Technical Context
The LMV342MAX/NOPB implements a patented Class AB turnaround stage that reduces input-referred voltage noise (29 nV/√Hz at 10 kHz) and offset drift (1.7 µV/°C typical) while maintaining 1 MHz GBW and rail-to-rail output swing within 24 mV of supply rails (at 2 kΩ load). Its PMOS input stage enables ultra-low input bias current (20 fA) and high input impedance (>1013 Ω), critical for high-impedance sensor interfaces.
It supports industrial-plus temperature operation (−40°C to +125°C) and is specified across both 2.7 V and 5 V supplies. Unlike the single-channel LMV341-N, the LMV342-N lacks a shutdown pin but retains identical AC/DC performance per channel - making it suitable for dual-path signal conditioning where independent enable control is unnecessary.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion (3.0–3.7 V) and 3.3 V logic systems without level shifting |
| Gain Bandwidth Product | 1 MHz - supports stable unity-gain buffers and first-order active filters up to ~100 kHz |
| Slew Rate | 1 V/µs - enables clean 100-kHz, 1-VPP sine wave reproduction with <0.017% THD+N |
| Input Bias Current | 20 fA (typical) - minimizes voltage error in high-Z source networks (e.g., pH electrodes, photodiode transimpedance) |
| Input Offset Voltage | 0.55 mV (typical, 25°C) - ensures ≤5.5 mV max over full −40°C to +125°C range for robust DC-coupled designs |
| Output Swing | Rail-to-rail, within 24 mV of V+ and 30 mV of V− (RL = 2 kΩ) - maximizes dynamic range in low-voltage ADC driver stages |
| Supply Current per Channel | 100 µA (typical, 25°C) - allows dual-channel operation on microamp-level battery budgets (e.g., coin-cell IoT sensors) |
Pinout & Package
LMV342MAX/NOPB is packaged in an 8-pin VSSOP (DGK) with nominal body size 3.00 mm × 3.00 mm - optimized for high-density portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT A (Pin 1) | Output, Channel A | Capable of sourcing/sinking ≥20 mA; rail-to-rail swing enables direct interface to SAR ADC reference inputs |
| IN A– (Pin 2) | Inverting Input, Channel A | High-impedance node (Zin > 1013 Ω); matched to IN A+ for <1 µV/°C common-mode rejection drift |
| IN A+ (Pin 3) | Noninverting Input, Channel A | Accepts common-mode voltages from −0.2 V to V+ − 0.2 V (2.7 V supply); supports single-supply sensor biasing |
| V– (Pin 4) | Negative Supply Input | Ground reference for dual-supply operation; tied to GND in single-supply configurations |
| IN B+ (Pin 5) | Noninverting Input, Channel B | Electrically isolated from Channel A; enables independent dual-path amplification without crosstalk (≥140 dB @ 1 kHz) |
| IN B– (Pin 6) | Inverting Input, Channel B | Matched to IN B+; supports differential input configurations with 56 dB min CMRR over full temperature range |
| OUT B (Pin 7) | Output, Channel B | Tri-stated only in external shutdown circuits; otherwise fully active and independently load-driven |
| V+ (Pin 8) | Positive Supply Input | Accepts 2.7–5.5 V; internal ESD protection rated to ±2000 V HBM ensures robustness in handheld assembly lines |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Delivers full 2.7 V output swing (24 mV from rails) into 2 kΩ, preserving SNR in low-voltage data acquisition chains |
| Ultra-low input bias current | 20 fA typical enables accurate measurement of nanoamp-level leakage currents in battery health monitoring circuits |
| Class AB turnaround architecture | Reduces input voltage noise to 29 nV/√Hz at 10 kHz while maintaining 1 MHz GBW - critical for audio preamp fidelity |
| Wide temperature range | Specified from −40°C to +125°C ensures reliable operation in automotive cabin modules and industrial handheld testers |
| Low quiescent current | 100 µA per channel allows dual-opamp integration in always-on wearable biosensors without compromising battery life |
Applications
| Battery Voltage Monitoring | Portable Audio Line Driver |
|---|---|
Use Scenario: Real-time cell voltage tracking in multi-cell Li-ion packs using resistive divider feedback to MCU ADC. IC Role / Device Role / Timing Role: Dual-channel buffer and level-shifter: Channel A conditions divider output; Channel B buffers reference voltage for ratiometric accuracy. Use Value: 20 fA input bias prevents loading-induced error (>0.1% at 1 MΩ divider); rail-to-rail output ensures full ADC utilization across 2.7–4.2 V range. |
Use Scenario: Driving stereo headphone outputs from low-power codec in Bluetooth earbuds. IC Role / Device Role / Timing Role: Dual-channel line driver: each channel delivers 1 VPP into 32 Ω with <0.017% THD+N at 1 kHz. Use Value: 1 V/µs slew rate avoids slew-induced distortion; 100 µA/channel enables dual-channel audio path within 200 µA total budget. |
| Medical Sensor Signal Conditioning | Industrial Current Loop Receiver |
Use Scenario: Amplifying weak signals from thermopile-based non-contact temperature sensors in clinical thermometers. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier: Channel A used in transimpedance configuration; Channel B as reference buffer. Use Value: 0.55 mV typical VOS and 1.7 µV/°C TCVOS limit thermal drift to <0.2 °C error over 0–50 °C ambient range. |
Use Scenario: Converting 4–20 mA loop current to 0–2.5 V for PLC analog input modules operating in harsh factory environments. IC Role / Device Role / Timing Role: Dual-channel I-to-V converter and filter: Channel A converts loop current; Channel B implements 2-pole anti-aliasing filter. Use Value: −40°C to +125°C rating ensures reliability near motor drives; 56 dB min CMRR rejects common-mode noise from adjacent VFDs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel rail-to-rail output op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Higher supply current (550 µA/ch), higher VOS (2 mV max), no guaranteed 2.7 V operation | Less suitable for coin-cell or energy-harvesting systems; better for higher-speed (6.4 MHz GBW) AC-coupled apps | Select TLV2462IDR only when >1 MHz bandwidth or higher output drive (>30 mA) is required - not for ultra-low-power DC sensing |
| MCP6022-E/SN | Lower input bias current (1 pA), wider supply range (2.7–6.0 V), but higher noise (25 nV/√Hz at 1 kHz, rising at 10 kHz) | Better for high-Z pH or ion-selective electrode interfaces; less optimal for 10 kHz–100 kHz audio due to noise profile | Choose MCP6022-E/SN for sub-picoamp bias-critical chem-sensing; avoid for 10 kHz noise-sensitive applications where LMV342MAX/NOPB's 29 nV/√Hz at 10 kHz matters |
Compared with TLV2462IDR and MCP6022-E/SN, LMV342MAX/NOPB uniquely balances ultra-low power (100 µA/ch), low 10-kHz noise (29 nV/√Hz), and guaranteed 2.7-V operation - making it the optimal choice for dual-channel battery-powered instrumentation where runtime and mid-frequency SNR are co-critical.
Availability
LMV342MAX/NOPB is available at Aetrix Electronics and suitable for battery monitoring, portable audio line driving, medical sensor signal conditioning, and industrial 4–20 mA receiver circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV342MAX/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 over 90 years of innovation in precision amplifiers and low-power signal chain solutions.
The LMV34x-N family was designed specifically for ultra-low-power, rail-to-rail output applications in portable electronics - delivering nanoscale input bias, wide temperature operation, and minimal supply current without sacrificing bandwidth or noise performance.
FAQ
What is the maximum operating temperature for LMV342MAX/NOPB?
The LMV342MAX/NOPB is fully specified from −40°C to +125°C, meeting industrial-plus requirements. Its thermal resistance (RθJA) is 235°C/W in the VSSOP package, allowing safe operation at full ambient temperature with typical PCB copper area. This rating is confirmed in Section 6.3 of the SNOS990H datasheet.
Does LMV342MAX/NOPB include a shutdown pin?
No, LMV342MAX/NOPB does not have a shutdown pin. That feature is exclusive to the single-channel LMV341-N (pin 5 = SHDN). The LMV342-N and LMV344-N variants lack shutdown functionality - their supply current remains at 100 µA per channel during operation and cannot be reduced below that level.
What is the input common-mode voltage range for LMV342MAX/NOPB at 2.7 V supply?
At 2.7 V supply, the input common-mode voltage range for LMV342MAX/NOPB is −0.2 V to 1.7 V (relative to V−), as specified in Section 6.5 of the datasheet. This allows direct interfacing with sensors biased near ground while maintaining ≥50 dB CMRR across the usable range.
Can LMV342MAX/NOPB drive a 600 Ω load at 1 kHz with low distortion?
Yes - LMV342MAX/NOPB achieves 0.017% THD+N at 1 kHz with 1 VPP output into 600 Ω (Section 6.6), enabled by its 1 V/µs slew rate and Class AB architecture. This meets professional audio line-driver requirements and exceeds standard AC-coupled headphone amp specs.
Is LMV342MAX/NOPB pin-compatible with other dual op-amps in VSSOP-8?
LMV342MAX/NOPB uses the industry-standard VSSOP-8 pinout (DGK package) defined in TI's datasheet Figure 5. It matches the pin mapping of TLV2462, MCP6022, and OPA2340 - enabling drop-in replacement in many existing layouts, provided supply voltage, bandwidth, and bias current requirements align.
LMV342MAX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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-SOIC
LMV342MAX/NOPB FAQ
1.How can I place an order for LMV342MAX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV342MAX/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 LMV342MAX/NOPB reliable?
The price and inventory of LMV342MAX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV342MAX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV342MAX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV342MAX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV342MAX/NOPB?
LMV342MAX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV342MAX/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 LMV342MAX/NOPB?
For technical support, including LMV342MAX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV342MAX/NOPB requirements.
6.How does Aetrix verify that LMV342MAX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV342MAX/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 LMV342MAX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV342MAX/NOPB?
All LMV342MAX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV342MAX/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 LMV342MAX/NOPB part is unused and in its original packaging.
Return procedure for LMV342MAX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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