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Texas Instruments LMV342MM
- Part No.:
- LMV342MM
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV342MM.pdf
- Description:
- IC CMOS 2 CIRCUIT 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,641
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Product details
Overview
LMV342MM 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 LMV342MM datasheet, LMV342MM pinout, LMV342MM application, or LMV342MM equivalent, this page provides verified technical context, real-world design meaning of key specs, validated dual-channel pin configuration, application-specific use cases, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The LMV342MM implements a patented Class AB turnaround stage that reduces input-referred voltage noise (29 nV/√Hz at 10 kHz) and offset voltage drift (1.7 µV/°C typical) while maintaining 1 MHz GBW and 1 V/µs slew rate across −40°C to +125°C. Its PMOS input stage enables ultra-low 20 fA input bias current and rail-to-rail output swing within 24 mV of supply rails (at 2 kΩ load, 2.7 V supply).
Unlike single-channel LMV341-N, LMV342MM lacks a shutdown pin and uses dual independent amplifiers sharing common V+ and V− supplies. It supports stable operation with capacitive loads up to 100 pF and achieves ≥70° phase margin with 100 kΩ feedback resistance - critical for filter and buffer designs in battery-powered systems.
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 rails without level-shifting. |
| Supply Current per Amplifier | 100 µA at 25°C - enables >10-year battery life in always-on sensor signal conditioning circuits. |
| Gain Bandwidth Product | 1 MHz - supports stable unity-gain buffers and 2nd-order active filters up to ~100 kHz. |
| Slew Rate | 1 V/µs - sufficient for 100-kHz full-scale sine wave output at 6.3 VPP without distortion. |
| Input Bias Current | 20 fA typical - minimizes voltage error in high-impedance pH, photodiode, or thermistor interfaces. |
| Input Offset Voltage | 0.55 mV max at 25°C - ensures ≤0.5% gain error in 12-bit ADC front-ends with 1 V reference. |
| Output Swing | Within 24 mV of V+ and 30 mV of V− (RL = 2 kΩ, VS = 2.7 V) - preserves dynamic range in low-voltage data acquisition. |
Pinout & Package
LMV342MM is packaged in an 8-pin VSSOP (DGK) with 3.00 mm × 3.00 mm body size, optimized for high-density portable PCB layouts. Thermal resistance RθJA is 235°C/W, supporting continuous operation at ambient temperatures up to 85°C with no derating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - rail-to-rail capable; must not be shorted to V+ or V− to avoid reliability degradation. |
| 2 | IN A− | Inverting input, channel A - high-impedance PMOS node; sensitive to ESD (HBM ±2000 V rated). |
| 3 | IN A+ | Noninverting input, channel A - used for unity-gain buffers or high-Z sensor interfaces. |
| 4 | V− | Negative supply - connects to GND in single-supply configurations; must be decoupled with 100 nF ceramic. |
| 5 | IN B+ | Noninverting input, channel B - electrically isolated from channel A; enables dual-path signal processing. |
| 6 | IN B− | Inverting input, channel B - matched to IN A− for common-mode rejection in differential receivers. |
| 7 | OUT B | Amplifier B output - independent of OUT A; supports simultaneous dual-sensor conditioning. |
| 8 | V+ | Positive supply - accepts 2.7–5.5 V; requires local 100 nF ceramic bypass capacitor near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 24 mV of V+ and 30 mV of V− at 2.7 V supply - maximizes usable signal range in 3.3 V systems. |
| Ultra-low input bias current | 20 fA typical - eliminates leakage-induced errors in megohm-range sensor bridges and electrochemical cells. |
| Low input voltage noise | 29 nV/√Hz at 10 kHz - enables clean amplification of microvolt-level signals from piezoelectric or MEMS sensors. |
| Wide temperature range | −40°C to +125°C operation - qualified for automotive cabin modules and industrial motor control feedback paths. |
| Stable with capacitive loads | Remains stable with ≤100 pF load capacitance - simplifies driving ADC inputs or long PCB traces without isolation resistors. |
Applications
| Battery Voltage Monitoring | Portable Audio Line Driver |
|---|---|
|
Use Scenario: Real-time measurement of single-cell Li-ion battery voltage during charge/discharge cycles in Bluetooth earbuds. IC Role / Device Role / Timing Role: Dual op-amp configured as precision voltage follower (CH A) and resistor-divider buffer (CH B) feeding 12-bit SAR ADC. Use Value: 0.55 mV max VOS ensures <±0.2% full-scale error over temperature; 100 µA quiescent current extends standby time by >30% vs legacy bipolar amps. |
Use Scenario: Driving stereo headphone outputs from DAC in compact fitness tracker with 3.3 V supply. IC Role / Device Role / Timing Role: Dual non-inverting amplifier (AV = 2) with rail-to-rail output delivering 1.8 VPP into 32 Ω load. Use Value: 1 V/µs slew rate prevents slew-induced THD (<0.017% at 1 kHz); 24 mV headroom at V+ enables full 3.3 VPP swing capability. |
| Medical Sensor Signal Conditioning | Industrial Current Loop Receiver |
|
Use Scenario: Amplifying low-level signals from disposable ECG electrodes in handheld patient monitor. IC Role / Device Role / Timing Role: CH A as high-Z instrumentation buffer; CH B as 2nd-order anti-aliasing filter before ADC. Use Value: 20 fA input bias current avoids electrode polarization artifacts; 1 MHz GBW supports 100 Hz cutoff with <1% passband ripple. |
Use Scenario: Converting 4–20 mA loop current to 0.5–2.5 V analog input for PLC analog module. IC Role / Device Role / Timing Role: Precision transimpedance amplifier (CH A) + reference buffer (CH B) for ratiometric ADC scaling. Use Value: 0.55 mV VOS limits current-sense error to <±0.03 mA; −40°C to +125°C rating supports uncooled DIN-rail enclosures. |
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 170 µA supply current; 2.5 V minimum supply; 10 µV max VOS at 25°C. | Better DC precision but higher power - suitable for mains-powered instrumentation, not battery-critical devices. | Select when offset voltage <10 µV is mandatory and supply >2.5 V is guaranteed. |
| TLV9002IDR | Lower 50 µA supply current; 1.2 V minimum supply; 1.2 mV max VOS; no HBM ESD rating specified. | Ultra-low power at cost of reduced precision and unverified ESD robustness - best for cost-sensitive consumer wearables. | Select when sub-100 µA operation is critical and ±2000 V HBM protection is not required. |
Compared with LMV342MM, MCP6022 offers superior DC accuracy but doubles supply current, while TLV9002 cuts power nearly in half but sacrifices offset performance and ESD assurance - making LMV342MM the balanced choice for portable industrial and medical sensors requiring proven robustness and moderate precision.
Availability
LMV342MM is available at Aetrix Electronics and suitable for battery monitoring, portable audio line driving, medical sensor signal conditioning, and industrial current loop receiver applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV342MM 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 ultra-low-power, rail-to-rail output operation in space-constrained portable electronics - emphasizing minimal supply current, wide temperature tolerance, and high input impedance for sensor interface applications.
FAQ
What is the operating supply voltage range for LMV342MM?
The LMV342MM operates from 2.7 V to 5.5 V, making it compatible with common single-cell Li-ion batteries (nominal 3.6 V) and standard 3.3 V logic supplies. Operation below 2.7 V is not characterized or guaranteed, and exceeding 5.5 V may cause permanent damage per absolute maximum ratings.
Does LMV342MM include a shutdown feature like LMV341-N?
No, LMV342MM does not have a shutdown pin. Unlike the single-channel LMV341-N, the dual-channel LMV342MM lacks SHDN functionality and remains fully active whenever powered. Power reduction must be achieved externally via supply switching or system-level sleep modes.
What package options are available for LMV342MM?
LMV342MM is offered exclusively in the 8-pin VSSOP (DGK) package measuring 3.00 mm × 3.00 mm. It is not available in SOIC or other footprints - the SOIC variant listed in the datasheet corresponds to the generic LMV342-N part number, not the MM-suffixed orderable device.
Can LMV342MM drive capacitive loads reliably?
Yes, LMV342MM is stable with capacitive loads up to 100 pF when using 100 kΩ feedback resistance, as confirmed by phase margin ≥70° in the datasheet. For loads >100 pF, external isolation resistors or compensation networks are recommended to prevent peaking or oscillation.
What is the input common-mode voltage range for LMV342MM?
The LMV342MM supports an input common-mode voltage range from V− to (V+ − 0.2 V) at 2.7 V supply, and from V− to (V+ − 0.2 V) at 5 V supply - enabling operation with inputs near ground or near the positive rail, critical for single-supply sensor interfaces.
LMV342MM 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:
- 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-VSSOP
LMV342MM FAQ
1.How can I place an order for LMV342MM through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV342MM 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 reliable?
The price and inventory of LMV342MM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV342MM is usually 5 days.
3.What payment methods are accepted for LMV342MM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV342MM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV342MM?
LMV342MM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV342MM 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?
For technical support, including LMV342MM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV342MM requirements.
6.How does Aetrix verify that LMV342MM is sourced from the original manufacturer or authorized distributors?
All LMV342MM 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 meets industry standards.
7.What is the process for return or replacement of LMV342MM?
All LMV342MM units undergo pre-shipment inspection (PSI). If there is an issue with LMV342MM, 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 part is unused and in its original packaging.
Return procedure for LMV342MM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV342MM Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM324PWR
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LM2902PWR
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LM2902DR
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LM358P
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