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Texas Instruments LMV342MMX/NOPB
- Part No.:
- LMV342MMX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV342MMX/NOPB.pdf
- Description:
- IC CMOS 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,706
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Product details
Overview
LMV342MMX/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 battery-powered audio and sensing circuits.
For engineers reviewing the LMV342MMX/NOPB datasheet, LMV342MMX/NOPB pinout, LMV342MMX/NOPB application, or LMV342MMX/NOPB equivalent, key selection criteria include rail-to-rail output swing (within 24 mV of rails at 2 kΩ), input offset voltage (0.55 mV typ. at 25°C), shutdown compatibility (shared with LMV341-N but not implemented on LMV342-N), and VSSOP-8 package footprint constraints.
Technical Context
The LMV342MMX/NOPB uses a patented PMOS input stage delivering 20 fA typical input bias current and high input impedance, paired with a Class AB turnaround output stage that reduces noise and offset while maintaining 1 V/µs slew rate. Its rail-to-rail output operates down to 24 mV from V− and 60 mV from V+ under 2 kΩ load at 2.7 V.
It supports single-supply operation from 2.7 V to 5.5 V and achieves 56 dB minimum common-mode rejection (CMRR) and 65 dB minimum power supply rejection (PSRR) across −40°C to +125°C. No internal shutdown control is present - unlike the LMV341-N variant - making it a fixed-function dual op-amp without enable logic.
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 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 - sufficient for 100 kHz full-scale sine waves at 1 VPP without distortion. |
| Input Bias Current | 20 fA (typ.) - preserves signal integrity in high-impedance sensor interfaces (e.g., pH electrodes, photodiodes). |
| Input Offset Voltage | 0.55 mV (typ. at 25°C) - ensures ≤0.5% error in 1 V full-scale DC-coupled measurement paths. |
| Rail-to-Rail Output Swing | Within 24 mV of V− and 60 mV of V+ (2 kΩ load, 2.7 V supply) - maximizes dynamic range in low-voltage ADC driver stages. |
| Operating Temperature | −40°C to +125°C - qualified for automotive cabin, industrial control, and extended-environment embedded use. |
Pinout & Package
LMV342MMX/NOPB 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, internally buffered. |
| 2 - IN A− | Inverting Input, Channel A | Differential input terminal for channel A; high-impedance PMOS node (20 fA bias). |
| 3 - IN A+ | Noninverting Input, Channel A | Differential input terminal for channel A; matched to IN A− for precision differential gain. |
| 4 - V− | Negative Supply Input | Ground reference or negative rail connection; required for single- or dual-supply operation. |
| 5 - IN B+ | Noninverting Input, Channel B | Differential input terminal for second op-amp; electrically isolated from channel A. |
| 6 - IN B− | Inverting Input, Channel B | Differential input terminal for channel B; maintains same bias and noise performance as channel A. |
| 7 - OUT B | Output, Channel B | Amplified output node for second op-amp; independent output stage, no crosstalk coupling. |
| 8 - V+ | Positive Supply Input | Main power rail (2.7–5.5 V); supplies both amplifiers and internal bias circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low input bias current | 20 fA typical - enables accurate amplification of nanoamp-level sensor currents without loading. |
| Rail-to-rail output stage | Swings within 24 mV of V− and 60 mV of V+ at 2.7 V - preserves >95% of available voltage headroom. |
| Low quiescent current | 100 µA per amplifier - extends battery life in always-on monitoring circuits (e.g., wearable health sensors). |
| Wide temperature range | −40°C to +125°C operation - supports deployment in engine control units, industrial PLC I/O modules, and outdoor IoT nodes. |
| High CMRR & PSRR | ≥56 dB CMRR, ≥65 dB PSRR - rejects supply ripple and common-mode interference in noisy embedded environments. |
Applications
| Battery Monitoring Circuit | Portable Audio Line Driver |
|---|---|
Use Scenario: Real-time cell voltage tracking in multi-cell Li-ion packs using resistive dividers and ADC front-end buffering. IC Role / Device Role / Timing Role: Dual-channel voltage follower and level-shifting buffer, isolating high-impedance divider from ADC input capacitance. Use Value: 20 fA input bias prevents divider ratio drift; rail-to-rail output ensures full-scale ADC utilization across 2.7–4.2 V cell range. |
Use Scenario: Driving stereo headphone outputs or line-level signals from DACs in Bluetooth earbuds and portable media players. IC Role / Device Role / Timing Role: Dual-channel AC-coupled buffer with DC biasing, providing low-noise, low-distortion signal delivery. Use Value: 1 V/µs slew rate supports 20 kHz audio bandwidth; 0.012% THD+N at 1 kHz ensures fidelity; 100 µA per channel minimizes power draw. |
| Industrial Sensor Signal Conditioning | PCMCIA Card Analog Front-End |
Use Scenario: Amplifying low-level mV-range outputs from RTDs, thermocouples, or strain gauges in factory automation modules. IC Role / Device Role / Timing Role: Precision instrumentation amplifier core (with external resistors) or programmable-gain stage in analog signal chain. Use Value: 0.55 mV max input offset and 1.7 µV/°C TCVOS limit thermal drift errors; 1 MHz GBW allows anti-alias filtering integration. |
Use Scenario: Providing configurable analog I/O (voltage scaling, filtering, buffering) on PCMCIA cards for data acquisition or fieldbus interface. IC Role / Device Role / Timing Role: Dual-channel general-purpose op-amp supporting multiple signal paths on compact card-edge form factor. Use Value: VSSOP-8 footprint fits tight PCMCIA layout constraints; 2.7 V min supply enables direct 3.3 V rail operation; −40°C to +125°C rating covers extended industrial use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2462IDR | Higher supply current (550 µA/ch), higher input offset (1.6 mV), but includes shutdown and wider GBW (6.4 MHz). | Preferred where speed and shutdown control outweigh power budget constraints - e.g., active filter banks with dynamic reconfiguration. | Select TLV2462IDR when system requires >1 MHz bandwidth or active power gating; avoid if <150 µA/ch total is mandatory. |
| OPA2316IDR | Lower input bias (0.2 pA), lower noise (11 nV/√Hz), but higher supply current (100 µA/ch same, yet higher precision costs more die area). | Better suited for ultra-high-impedance pH or ion-selective electrode interfaces requiring sub-pA bias and lower noise floor. | Select OPA2316IDR only when 20 fA bias is insufficient and cost premium is acceptable; LMV342MMX/NOPB remains optimal for cost-sensitive portable designs. |
Compared with TLV2462IDR and OPA2316IDR, LMV342MMX/NOPB offers the lowest power-per-channel among TI's dual rail-to-rail op-amps with guaranteed 2.7 V operation and industrial temperature range - making it the preferred choice for long-life battery-powered signal chains where 1 MHz bandwidth suffices.
Availability
LMV342MMX/NOPB is available at Aetrix Electronics and suitable for battery monitoring, portable audio line driving, industrial sensor signal conditioning, and PCMCIA analog front-end applications requiring stable component supply and long-term production continuity.
Supply support for LMV342MMX/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 innovation 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- and energy-constrained portable electronics - extending TI's Silicon Dust portfolio with enhanced size, speed, and efficiency trade-offs.
FAQ
Does LMV342MMX/NOPB have a shutdown pin?
No, LMV342MMX/NOPB does not include a shutdown pin. Unlike the LMV341-N (single-channel variant), the LMV342MMX/NOPB is a dual op-amp without enable/disable functionality. Power must be managed externally via supply rail control. This simplifies layout but removes dynamic power gating capability - a deliberate design choice to minimize die area and cost while retaining core low-power performance.
What is the maximum capacitive load LMV342MMX/NOPB can drive stably?
LMV342MMX/NOPB maintains stability with up to 100 pF capacitive load when configured as a unity-gain buffer (AV = +1) with RL ≥ 10 kΩ, per Figure 25 and Figure 26 in the SNOS990H datasheet. Driving >100 pF directly requires isolation resistance (e.g., 100 Ω in series) or careful compensation to prevent peaking or oscillation - especially critical in ADC driver or cable-driving applications.
Can LMV342MMX/NOPB operate from a single 3.3 V supply?
Yes, LMV342MMX/NOPB is fully specified for single-supply operation from 2.7 V to 5.5 V. At 3.3 V, it delivers rail-to-rail output swing (within 30 mV of each rail at 10 kΩ), 1 MHz GBW, and 100 µA per amplifier supply current - making it ideal for 3.3 V microcontroller-based systems such as portable data loggers and smart sensors where supply headroom is limited.
What is the input common-mode voltage range for LMV342MMX/NOPB?
The input common-mode voltage range for LMV342MMX/NOPB extends from V− to (V+ − 1.2 V) at 2.7 V supply, and from V− to (V+ − 1.3 V) at 5 V supply - verified in Section 6.5 and 6.7 of SNOS990H. For reliable CMRR ≥50 dB, the usable range is V− to 1.7 V at 2.7 V and V− to 4.0 V at 5 V. This allows direct interfacing with most 0–3.3 V or 0–5 V sensor outputs without level-shifting.
Is LMV342MMX/NOPB pin-compatible with other TI dual op-amps in VSSOP-8?
LMV342MMX/NOPB follows TI's standard dual op-amp VSSOP-8 pinout (DGK package): pins 1/7 = outputs, 2/3/5/6 = inputs, 4 = V−, 8 = V+. It is pin-compatible with TLV2462IDR and OPA2316IDR in the same package - enabling drop-in replacement where electrical specs align. However, functional differences (e.g., absence of shutdown in LMV342MMX/NOPB) require verification in final schematic and layout.
LMV342MMX/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
LMV342MMX/NOPB FAQ
1.How can I place an order for LMV342MMX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV342MMX/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 LMV342MMX/NOPB reliable?
The price and inventory of LMV342MMX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV342MMX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV342MMX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV342MMX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV342MMX/NOPB?
LMV342MMX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV342MMX/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 LMV342MMX/NOPB?
For technical support, including LMV342MMX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV342MMX/NOPB requirements.
6.How does Aetrix verify that LMV342MMX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV342MMX/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 LMV342MMX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV342MMX/NOPB?
All LMV342MMX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV342MMX/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 LMV342MMX/NOPB part is unused and in its original packaging.
Return procedure for LMV342MMX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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