My Inquiry
My Account
Texas Instruments LMV342MA
- Part No.:
- LMV342MA
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV342MA.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,119
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMV342MA 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 signal conditioning in battery-powered systems such as PDAs and audio interfaces.
For engineers reviewing the LMV342MA datasheet, LMV342MA pinout, LMV342MA application, or LMV342MA equivalent, key selection criteria include its dual-channel configuration, VSSOP-8 package footprint, rail-to-rail output swing (within 24 mV of rails at 2.7 V), ultra-low input bias current, and guaranteed performance across −40°C to +125°C.
Technical Context
The LMV342MA implements a patented Class AB turnaround stage that reduces input-referred voltage noise (29 nV/√Hz at 10 kHz) and offset voltage while maintaining high open-loop gain and low quiescent current. Its PMOS input stage enables 20 fA typical input bias current and high input impedance.
It supports single-supply operation with rail-to-rail output swing and specified performance over 2.7 V–5.5 V supply range. Input common-mode voltage extends to within 0.2 V of V− and up to 1.7 V below V+ at 2.7 V supply, ensuring flexibility in sensor interface and buffer designs.
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. |
| Supply Current per Channel | 100 µA (typ) - allows dual op-amp operation in micro-power applications like battery monitors. |
| Gain Bandwidth Product | 1 MHz - supports stable unity-gain buffers and low-frequency active filters (e.g., anti-aliasing up to ~100 kHz). |
| Slew Rate | 1 V/µs - sufficient for 100-kHz full-power sine waves at 1-V peak amplitude without distortion. |
| Input Bias Current | 20 fA (typ) - minimizes voltage error in high-impedance sensor interfaces (e.g., photodiode transimpedance amps). |
| Input Offset Voltage | 0.55 mV (max at 25°C) - ensures <1 LSB error in 12-bit ADC front-ends with gain ≤10. |
| Rail-to-Rail Output Swing | Within 24 mV of V− and 60 mV of V+ (at 2.7 V, RL = 2 kΩ) - maximizes dynamic range in single-supply data acquisition. |
Pinout & Package
LMV342MA is packaged in an 8-pin VSSOP (DGK) with nominal body size 3.00 mm × 3.00 mm, optimized for space-constrained PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT A | Output, Channel A | Amplified output node for first op-amp; rail-to-rail capable; tri-stated during shutdown (not applicable to LMV342MA). |
| 2 - IN A− | Inverting Input, Channel A | Differential input terminal for Channel A; accepts common-mode voltages down to V− − 0.2 V. |
| 3 - IN A+ | Noninverting Input, Channel A | Differential input terminal for Channel A; supports common-mode range up to V+ − 1.7 V (at 2.7 V). |
| 4 - V− | Negative Supply Input | Ground reference or negative rail connection; required for proper biasing of dual-supply configurations. |
| 5 - IN B− | Inverting Input, Channel B | Differential input terminal for second op-amp; electrically isolated from Channel A inputs. |
| 6 - IN B+ | Noninverting Input, Channel B | Differential input terminal for Channel B; identical electrical characteristics to IN A+. |
| 7 - OUT B | Output, Channel B | Amplified output node for second op-amp; independent of OUT A; same rail-to-rail behavior. |
| 8 - V+ | Positive Supply Input | Main power supply connection; supports 2.7 V–5.5 V; decoupling capacitor recommended near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 20 fA typical - preserves signal integrity in high-Z sensor nodes (e.g., pH electrodes, piezoelectric sensors). |
| Rail-to-rail output stage | Swings within 24 mV of V− and 60 mV of V+ at 2.7 V - recovers >95% of available output voltage range. |
| Class AB turnaround architecture | Reduces input voltage noise to 29 nV/√Hz at 10 kHz while maintaining 1 MHz GBW - improves SNR in AC-coupled signal chains. |
| Wide temperature range | Specified from −40°C to +125°C - suitable for automotive cabin modules and industrial edge sensors. |
| Low supply current | 100 µA per channel - enables dual-op-amp use in always-on monitoring circuits with multi-year battery life. |
Applications
| Battery Monitoring | Audio Line Driver |
|---|---|
Use Scenario: Real-time measurement of cell voltage in multi-cell Li-ion packs using high-impedance resistive dividers. IC Role / Device Role / Timing Role: Precision buffer and level-shifter between divider network and ADC input. Use Value: 20 fA input bias current prevents loading-induced voltage drop, preserving ±10 mV accuracy at 4.2 V. |
Use Scenario: Driving line-level analog audio signals (2 VPP) from codec outputs to external jacks in portable media players. IC Role / Device Role / Timing Role: Unity-gain rail-to-rail output buffer with low THD+N (0.012% at 1 kHz). Use Value: 1 V/µs slew rate supports full-swing 20-kHz sine waves; 1 MHz GBW ensures flat frequency response to 100 kHz. |
| Portable Sensor Interface | PCMCIA Analog Front-End |
Use Scenario: Amplifying low-level signals from MEMS accelerometers or thermopiles in handheld diagnostic tools. IC Role / Device Role / Timing Role: Low-noise, low-drift instrumentation amplifier stage (configured as non-inverting gain=10). Use Value: 0.55 mV max VOS and 1.7 µV/°C TCVOS minimize calibration drift across operating temperature. |
Use Scenario: Signal conditioning for legacy PCMCIA card peripherals requiring analog I/O in compact laptop expansion slots. IC Role / Device Role / Timing Role: Dual-channel configurable gain stage and anti-alias filter driver. Use Value: VSSOP-8 footprint fits tight PCMCIA board spacing; 2.7 V min supply aligns with 3.3 V slot power rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6022-I/SN | Higher supply current (180 µA/channel), wider GBW (10 MHz), no guaranteed 125°C operation. | Better for higher-speed filtering but less optimal for ultra-low-power battery monitoring. | Choose when bandwidth >1 MHz is required and thermal margin beyond 85°C is not critical. |
| TLV2462IDR | Higher input offset (2 mV max), higher noise (28 nV/√Hz), same 100 µA supply current and rail-to-rail output. | Acceptable for cost-sensitive consumer audio where precision is secondary to price. | Choose for legacy designs already using TLV246x; avoid where sub-mV offset or fA bias current is mandatory. |
Compared with MCP6022-I/SN and TLV2462IDR, LMV342MA offers the lowest input bias current (20 fA vs ≥1 pA) and best high-temperature specification (−40°C to 125°C), making it uniquely suited for precision, wide-temperature, battery-constrained applications.
Availability
LMV342MA is available at Aetrix Electronics and suitable for battery monitoring, portable sensor interfaces, audio line drivers, and PCMCIA analog front-ends requiring stable component supply and long-term manufacturability.
Supply support for LMV342MA 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 design.
The LMV342MA belongs to TI's LMV34x-N family of rail-to-rail output CMOS op-amps, engineered specifically for low-voltage portable electronics demanding ultra-low power, high precision, and extended temperature operation.
FAQ
Does LMV342MA have a shutdown pin?
No, LMV342MA does not include a shutdown pin. That feature is exclusive to the single-channel LMV341-N variant. The LMV342MA is a dual-channel op-amp without enable/disable control; all functionality remains active whenever powered within its 2.7 V–5.5 V supply range. For power-gated dual-channel operation, external FET switching on V+ or V− is required.
What is the maximum capacitive load LMV342MA can drive stably?
LMV342MA maintains stability with up to 100 pF capacitive load when configured as a unity-gain buffer (AV = +1) and driving RL ≥ 2 kΩ. At higher loads (e.g., 500 pF), phase margin degrades below 70°, risking oscillation. For heavier loads, add a series resistor (≥100 Ω) between output and capacitance to isolate the reactive load.
Is LMV342MA suitable for single-supply operation?
Yes, LMV342MA is fully specified for single-supply operation from 2.7 V to 5.5 V. Its input common-mode range extends to within 0.2 V of V− and up to 1.7 V below V+ (at 2.7 V), and its rail-to-rail output swings within 24 mV of V− and 60 mV of V+, enabling robust signal handling in ground-referenced systems like battery-powered data loggers.
What package options are available for LMV342MA?
LMV342MA is offered exclusively in the 8-pin VSSOP (DGK) package with 3.00 mm × 3.00 mm body size and 0.65 mm lead pitch. It is not available in SOIC-8; that variant is designated LMV342M. The VSSOP package provides superior thermal performance (RθJA = 235°C/W) and reduced PCB area versus SOIC, ideal for portable designs.
How does LMV342MA's input voltage noise compare across frequency?
LMV342MA exhibits 39 nV/√Hz input-referred voltage noise at 1 kHz and 29 nV/√Hz at 10 kHz (typical). Noise decreases slightly above 1 kHz due to its PMOS input architecture - unlike bipolar-input op-amps, which show rising 1/f noise. This makes LMV342MA especially effective in mid-band sensor signal chains (100 Hz–100 kHz) where low broadband noise matters most.
LMV342MA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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 FAQ
1.How can I place an order for LMV342MA through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV342MA 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 reliable?
The price and inventory of LMV342MA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV342MA is usually 5 days.
3.What payment methods are accepted for LMV342MA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV342MA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV342MA?
LMV342MA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV342MA 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?
For technical support, including LMV342MA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV342MA requirements.
6.How does Aetrix verify that LMV342MA is sourced from the original manufacturer or authorized distributors?
All LMV342MA 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 meets industry standards.
7.What is the process for return or replacement of LMV342MA?
All LMV342MA units undergo pre-shipment inspection (PSI). If there is an issue with LMV342MA, 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 part is unused and in its original packaging.
Return procedure for LMV342MA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV342MA Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
