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Texas Instruments LMV342MA/NOPB
- Part No.:
- LMV342MA/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV342MA/NOPB.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,293
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Product details
Overview
LMV342MA/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 amplifier 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 space-constrained battery-powered systems like PDAs and audio interfaces.
For engineers reviewing the LMV342MA/NOPB datasheet, LMV342MA/NOPB pinout, LMV342MA/NOPB application, or LMV342MA/NOPB equivalent, key selection criteria include its dual-channel rail-to-rail output architecture, 2.7–5.5 V single-supply operation, 29 nV/√Hz input voltage noise at 10 kHz, shutdown capability (on LMV341-N only), and VSSOP-8 package compatibility with high-density PCB layouts.
Technical Context
The LMV342MA/NOPB implements a patented Class AB turnaround stage that reduces input-referred offset voltage, high-frequency noise, and quiescent current while preserving slew rate and open-loop gain. Its PMOS input stage enables femtoampere-level input bias current and high input impedance, critical for high-impedance sensor interfacing and precision monitoring circuits.
Designed for single-supply operation from 2.7 V to 5.5 V, it supports rail-to-rail output swing within 24 mV of V+ and 32 mV of V− (at 5 V, RL = 2 kΩ), with guaranteed performance across industrial-plus temperature range. Unlike the LMV341-N, the LMV342MA/NOPB lacks a shutdown pin - confirming its role as a dual-channel general-purpose amplifier without power-gating control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct integration into Li-ion and 3.3 V logic systems without level-shifting. |
| Gain Bandwidth Product | 1 MHz - supports stable unity-gain buffering and low-frequency filtering up to ~100 kHz with adequate phase margin. |
| Slew Rate | 1 V/µs - sufficient for 100 kHz full-scale sine wave output at 1 VPP without distortion. |
| Input Bias Current | 20 fA (typ) - minimizes voltage error in high-impedance transducer and photodiode amplifier designs. |
| Input Voltage Noise | 29 nV/√Hz at 10 kHz - optimized for mid-frequency signal chains where thermal noise dominates. |
| Input Offset Voltage | 0.55 mV (typ) at 25°C - ensures ≤1.5 mV worst-case DC error over full temperature range for basic sensing accuracy. |
| Operating Temperature | −40°C to +125°C - qualified for automotive cabin, industrial control, and extended-environment embedded use. |
Pinout & Package
The LMV342MA/NOPB is packaged in an 8-pin VSSOP (DGK) with nominal body size 3.00 mm × 3.00 mm, offering compact footprint and thermal resistance RθJA = 235°C/W for efficient heat dissipation in dense layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT A | Output, Channel A | Rail-to-rail output capable of sourcing/sinking ≥20 mA; tri-stated only in shutdown variants (not applicable here). |
| 2 - IN A− | Inverting Input, Channel A | High-impedance PMOS node; connects to feedback network for inverting configurations. |
| 3 - IN A+ | Noninverting Input, Channel A | High-impedance PMOS node; used for sensor reference, buffer inputs, or active filter summing junctions. |
| 4 - V− | Negative Supply Input | Ground reference for single-supply operation; must be connected to system GND or negative rail. |
| 5 - IN B+ | Noninverting Input, Channel B | Independent high-Z input for second signal path - enables dual-channel signal processing without cross-talk. |
| 6 - IN B− | Inverting Input, Channel B | Independent inverting input for channel B; supports differential pair or separate gain stages. |
| 7 - OUT B | Output, Channel B | Second rail-to-rail output; electrically isolated from OUT A - allows independent load driving. |
| 8 - V+ | Positive Supply Input | Primary power connection; accepts 2.7–5.5 V; decoupling capacitor required near pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Within 24 mV of V+ and 32 mV of V− at 5 V - maximizes dynamic range in single-supply data acquisition. |
| Ultra-low input bias current | 20 fA typical - eliminates significant error in >100 MΩ source impedances (e.g., pH electrodes, piezoelectric sensors). |
| Low quiescent current | 100 µA per amplifier - extends battery life in always-on monitoring circuits without sacrificing bandwidth. |
| Wide temperature range | −40°C to +125°C operation - supports deployment in under-hood automotive, factory floor, and outdoor IoT nodes. |
| CMOS input stage | PMOS architecture - provides high input impedance (>1013 Ω) and immunity to ESD-induced gate leakage drift. |
Applications
| Battery Monitoring | Portable Audio Interface |
|---|---|
Use Scenario: Real-time cell voltage measurement in multi-cell Li-ion packs using high-resistance voltage dividers. IC Role / Device Role / Timing Role: Dual-channel buffer and difference amplifier for precision voltage scaling and common-mode rejection. Use Value: 20 fA input bias current prevents loading errors in 10 MΩ+ divider networks, ensuring <±1 mV measurement accuracy. |
Use Scenario: Line-level signal conditioning in Bluetooth headphones and USB-C DACs with 3.3 V supply rails. IC Role / Device Role / Timing Role: Dual-channel active filter and output driver for left/right stereo paths. Use Value: Rail-to-rail output swing delivers full 3.3 Vpp headroom into 10 kΩ loads, minimizing THD+N (<0.017% at 1 kHz). |
| Industrial Sensor Signal Chain | PCMCIA Card Analog Front-End |
Use Scenario: Amplifying low-level outputs from RTDs, thermocouples, or strain gauges in programmable logic controllers. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with gain-setting and offset trimming. Use Value: 0.55 mV typical VOS and 1.7 µV/°C TCVOS limit thermal drift to <0.5 mV over 100°C span. |
Use Scenario: Signal routing and level adaptation for analog I/O on legacy PCMCIA expansion cards. IC Role / Device Role / Timing Role: Dual-channel buffer and level shifter between 5 V host logic and 3.3 V peripheral sensors. Use Value: 2.7–5.5 V supply flexibility allows seamless interface across mixed-voltage PCMCIA subsystems. |
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 |
|---|---|---|---|
| MCP6022-I/SN | Higher supply current (180 µA), lower GBW (10 MHz), no guaranteed 125°C operation | Better AC performance but less suitable for ultra-low-power, high-temp environments | Select when bandwidth >1 MHz is required and temperature range ≤85°C suffices |
| TLV2462IDR | Higher input offset (2 mV typ), higher noise (22 nV/√Hz at 1 kHz), same 125°C rating | Lower cost but reduced DC precision and noise performance in sensor front-ends | Select for cost-sensitive industrial controls where ±2 mV offset is acceptable |
Compared with MCP6022-I/SN and TLV2462IDR, the LMV342MA/NOPB offers the lowest input bias current (20 fA vs >1 pA), best high-temperature DC stability, and optimal balance of power (100 µA), speed (1 MHz), and noise (29 nV/√Hz) for battery-constrained precision analog systems.
Availability
LMV342MA/NOPB is available at Aetrix Electronics and suitable for battery monitoring, portable audio interfaces, industrial sensor signal chains, and PCMCIA card analog front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV342MA/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, with deep expertise in precision amplifiers, power management, and signal chain ICs.
The LMV342MA/NOPB belongs to TI's LMV34x-N family of low-voltage, low-power CMOS op-amps designed specifically for rail-to-rail output performance in portable, battery-powered, and space-constrained industrial electronics.
FAQ
Does the LMV342MA/NOPB have a shutdown pin?
No, the LMV342MA/NOPB does not include a shutdown pin. Shutdown functionality is exclusive to the LMV341-N (single-channel) variant. The LMV342MA/NOPB is a dual-channel amplifier with fixed enable operation - all pins are dedicated to signal I/O or power, and power-down must be implemented externally via supply switching.
What is the maximum capacitive load the LMV342MA/NOPB can drive stably?
The LMV342MA/NOPB maintains stability with up to 100 pF capacitive load when configured as a unity-gain buffer (AV = +1) with RL ≥ 10 kΩ. Driving >100 pF requires external isolation resistor (e.g., 100 Ω in series with output) to prevent peaking or oscillation, as confirmed by TI's Figure 25 and Figure 26 in SNOS990H.
Is the LMV342MA/NOPB pin-compatible with other VSSOP-8 op-amps?
The LMV342MA/NOPB follows standard VSSOP-8 pinout for dual op-amps (IN+, IN−, OUT, V−, V+, IN+, IN−, OUT), matching industry conventions. However, pin compatibility with specific alternatives (e.g., TLV2462, MCP6022) must be verified per datasheet - absolute pin equivalence is not guaranteed due to differing internal functions or enable pin placements.
What is the typical input offset voltage drift over temperature for LMV342MA/NOPB?
The LMV342MA/NOPB has a typical input offset voltage drift (TCVOS) of 1.7 µV/°C, measured across −40°C to +125°C. This results in <0.3 mV total drift over a 100°C span, supporting stable DC-coupled gain stages in temperature-variable environments without active calibration.
Can the LMV342MA/NOPB operate from a single 2.7 V supply?
Yes, the LMV342MA/NOPB is fully specified for single-supply operation from 2.7 V to 5.5 V. At 2.7 V, it delivers rail-to-rail output swing (within 60 mV of rails), 1 MHz GBW, and 100 µA supply current per amplifier - making it ideal for coin-cell or single-LiFePO₄ powered devices.
LMV342MA/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
LMV342MA/NOPB FAQ
1.How can I place an order for LMV342MA/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV342MA/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 LMV342MA/NOPB reliable?
The price and inventory of LMV342MA/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV342MA/NOPB is usually 5 days.
3.What payment methods are accepted for LMV342MA/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV342MA/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV342MA/NOPB?
LMV342MA/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV342MA/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 LMV342MA/NOPB?
For technical support, including LMV342MA/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV342MA/NOPB requirements.
6.How does Aetrix verify that LMV342MA/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV342MA/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 LMV342MA/NOPB meets industry standards.
7.What is the process for return or replacement of LMV342MA/NOPB?
All LMV342MA/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV342MA/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 LMV342MA/NOPB part is unused and in its original packaging.
Return procedure for LMV342MA/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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