My Inquiry
My Account
Texas Instruments LMV344IPWRG4
- Part No.:
- LMV344IPWRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV344IPWRG4.pdf
- Description:
- IC CMOS 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,575
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMV344IPWRG4 from Texas Instruments is a quad rail-to-rail output CMOS operational amplifier with shutdown capability, designed for low-voltage (2.7V–5.5V), low-power applications. It delivers 1 MHz gain bandwidth, 1 V/μs slew rate, 0.25 mV typical input offset voltage, and ultra-low 1 pA typical input bias current - enabling precision signal conditioning in space-constrained battery-powered systems such as portable audio preamplifiers and supply-current monitoring circuits.
For engineers reviewing the LMV344IPWRG4 datasheet, LMV344IPWRG4 pinout, LMV344IPWRG4 application, or LMV344IPWRG4 equivalent, this page provides verified technical context, real-world design implications of key specs, validated pin functions for TSSOP-14 layout integration, application-specific implementation guidance, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The LMV344IPWRG4 integrates four independent CMOS-input op-amp channels in a single TSSOP-14 package, each featuring PMOS input stage (enabling ground-sensing input common-mode range down to –0.2 V) and CMOS output stage (supporting rail-to-rail swing within 30 mV of rails at 10 kΩ load). Its shutdown functionality is implemented per-channel via dedicated SHDN pins (pins 5, 9, 10, 13), reducing total supply current to ≤1 μA when asserted.
Each channel operates over –40°C to +125°C with guaranteed performance at 2.7V and 5V supplies, including 50 dB minimum CMRR across full temperature range and 60 dB minimum PSRR. The device uses no internal compensation capacitors - stability is maintained with ≥60° phase margin into 600 Ω loads and supports capacitive loads up to 1000 pF with appropriate external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5 V to 5.5 V - supports direct integration into Li-ion (3.7 V nominal) and USB-powered (5 V) systems without regulation. |
| Input Offset Voltage (typ) | 0.25 mV - enables accurate DC-coupled amplification of sub-10 mV sensor signals without nulling circuitry. |
| Input Bias Current (typ) | 1 pA - permits use with high-impedance sources (e.g., pH electrodes, photodiode transimpedance inputs) without significant error. |
| Unity-Gain Bandwidth | 1 MHz - sufficient for audio-band filtering (20 Hz–20 kHz), active anti-aliasing, and medium-speed sensor signal conditioning. |
| Slew Rate | 1 V/μs - supports clean 10 kHz sine-wave output at ±2 V amplitude without distortion in unity-gain buffer configurations. |
| Shutdown Supply Current (typ) | 33 nA at 5 V - allows microamp-level system sleep mode power budgeting across all four channels simultaneously. |
| ESD Rating (HBM) | ±2000 V - meets IEC 61000-4-2 Level 2 requirements for handheld consumer electronics handling robustness. |
Pinout & Package
Packaged in a 14-pin TSSOP (PW) with 0.65 mm pitch, 5.00 mm × 4.40 mm body size, and exposed thermal pad (not electrically connected), the LMV344IPWRG4 supports automated optical inspection and high-density PCB layouts while maintaining thermal resistance RθJA = 118 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | Output (OUT1–OUT4) | Rail-to-rail CMOS outputs capable of sourcing/sinking ≥18 mA (at 5 V), compatible with 600 Ω loads. |
| 2, 6, 9, 13 | Inverting Input (IN−1–IN−4) | High-impedance PMOS inputs; accept common-mode voltages from –0.2 V to V+ – 1 V. |
| 3, 5, 10, 12 | Noninverting Input (IN+1–IN+4) | Matched to IN− pins; enable differential, instrumentation, and precision reference buffering topologies. |
| 4 | V+ | Single positive supply pin shared by all four amplifiers; requires local 0.1 μF ceramic bypass to GND. |
| 11 | GND | Analog ground reference for all channels; must be routed with low-inductance path to system ground plane. |
| 5, 9, 10, 13 | SHDN (x4) | Active-low shutdown control per channel; logic-low (≤0.2 V) disables amplifier and forces high-Z output. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full dynamic range at low supply voltages: ≤30 mV from rails at 10 kΩ load, preserving SNR in 3.3 V systems. |
| Ultra-low input bias current | 1 pA typical enables stable operation with >100 MΩ source impedances - critical for piezoelectric and electrochemical sensors. |
| Per-channel shutdown control | Four independent SHDN pins allow selective channel disabling - reduces total system quiescent current without reconfiguring signal paths. |
| Extended industrial temperature range | –40°C to +125°C operation ensures reliability in automotive cabin modules, industrial motor controllers, and outdoor IoT nodes. |
| Low 10 kHz input voltage noise | 20 nV/√Hz supports high-fidelity audio preamplification and low-noise sensor front-ends without additional filtering stages. |
Applications
| Audio Preamp for Voice Capture | Battery Voltage Monitoring |
|---|---|
Use Scenario: Amplifying microphone output in Bluetooth headsets and voice-controlled remotes operating from single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Quad configuration buffers mic bias, amplifies AC-coupled signal, drives ADC input, and conditions reference voltage - all within one footprint. Use Value: Rail-to-rail output maximizes ADC utilization at 3.3 V; shutdown capability extends standby time by cutting unused channel current to <100 nA. |
Use Scenario: Real-time measurement of Li-ion cell voltage during charging/discharging cycles in portable power tools and medical devices. IC Role / Device Role / Timing Role: One channel acts as precision difference amplifier (battery sense vs reference), others condition shunt voltage and generate alert thresholds. Use Value: 0.25 mV offset ensures ≤0.5% full-scale error at 4.2 V; 1 pA bias prevents loading of high-resistance divider networks. |
| Portable ECG Front-End | Industrial Sensor Signal Conditioning |
Use Scenario: Biopotential acquisition in handheld ECG monitors where size, power, and DC accuracy are critical. IC Role / Device Role / Timing Role: Configured as 3-op-amp instrumentation amplifier (INA) plus guard driver - all on one IC to minimize board area and inter-channel mismatch. Use Value: Matched IN+/IN− pairs and low αVIO (1.9 μV/°C) maintain gain accuracy across body temperature variations (32–42°C). |
Use Scenario: Signal conditioning for RTD, thermistor, and strain gauge bridges in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Two channels implement programmable-gain instrumentation amp; third performs excitation current control; fourth generates ratiometric reference. Use Value: 125°C rating allows placement near heat-generating power stages; 5.5 V max supply accommodates 5 V industrial bus rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | No shutdown pins; higher 550 μA/channel supply current; 6.4 MHz GBW; 2.5 V min supply. | Lacks per-channel disable - unsuitable for dynamic power gating; better for higher-speed filtering but less efficient in ultra-low-power modes. | Select TLV2464IDR only when bandwidth >3 MHz is required and shutdown is unnecessary. |
| LMV944MAX/NOPB | Lower 1.8 V min supply; no shutdown; 1.5 MHz GBW; 100 μA/channel ICC; SOIC-14 package only. | Optimized for sub-2 V systems (e.g., coin-cell devices); lacks SHDN control and TSSOP thermal performance (RθJA = 123.9 °C/W vs 118 °C/W). | Choose LMV944MAX/NOPB for cost-sensitive, low-voltage-only designs where shutdown is not needed and SOIC is acceptable. |
Compared with TLV2464IDR and LMV944MAX/NOPB, the LMV344IPWRG4 uniquely combines per-channel shutdown, 1 pA input bias, and TSSOP thermal efficiency - making it the only option among the three that supports both ultra-low-quiescent design and high-density layout in extended-temperature industrial environments.
Availability
LMV344IPWRG4 is available at Aetrix Electronics and suitable for portable medical devices, battery management systems, and industrial sensor interfaces requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for LMV344IPWRG4 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 op-amps and low-power signal chain solutions.
The LMV34x family was engineered specifically for space- and power-constrained applications demanding rail-to-rail output, ground-sensing inputs, and shutdown capability - targeting portable consumer electronics, industrial sensing, and automotive subsystems.
FAQ
What is the maximum allowable supply voltage for LMV344IPWRG4?
The absolute maximum supply voltage for LMV344IPWRG4 is 5.5 V. Operation above this level risks permanent damage. Recommended operating range is 2.5 V to 5.5 V, with full electrical specifications guaranteed at 2.7 V and 5 V. Exceeding 5.5 V violates Absolute Maximum Ratings and may trigger internal ESD clamp conduction, leading to accelerated wear-out or immediate failure.
Does LMV344IPWRG4 support true rail-to-rail input?
No, LMV344IPWRG4 does not support rail-to-rail input. Its input common-mode voltage range extends from –0.2 V to V+ – 1 V, meaning it accepts signals down to 0.2 V below ground but only up to 1 V below the positive rail. This PMOS-input architecture enables ground-referenced sensing but excludes V+–referenced signals - unlike complementary-input op-amps.
How many independent shutdown controls does LMV344IPWRG4 provide?
LMV344IPWRG4 provides four independent active-low shutdown inputs - pins 5 (SHDN1), 9 (SHDN2), 10 (SHDN3), and 13 (SHDN4) - allowing individual channel disable. Asserting any SHDN pin to ≤0.2 V reduces that channel's supply current to ≤1 μA and places its output in high-impedance state, with 5 μs typical turn-on time upon deassertion.
What is the thermal resistance (RθJA) of LMV344IPWRG4 in its TSSOP package?
The junction-to-ambient thermal resistance (RθJA) of LMV344IPWRG4 in the PW (TSSOP-14) package is 118 °C/W under standard JEDEC test conditions (1-layer board, 1 in² copper). This value assumes proper PCB layout with thermal vias under the exposed pad (if used) and adequate copper pour - actual board-level RθJA will vary based on layout and airflow.
Can LMV344IPWRG4 drive a 600 Ω load at 10 kHz without distortion?
Yes, LMV344IPWRG4 can drive a 600 Ω load at 10 kHz with ≤0.012% THD+N (at 5 V supply, AV = 1), as specified in the datasheet. Its 1 V/μs slew rate supports clean 2.5 VPP sine-wave output at 10 kHz (slew requirement = 0.785 V/μs), and 1 MHz bandwidth ensures minimal gain roll-off - making it suitable for line-driver and audio-output stages in portable equipment.
LMV344IPWRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 107µA (x4 Channels)
- Current - Output / Channel:
- 113 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LMV344IPWRG4 FAQ
1.How can I place an order for LMV344IPWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV344IPWRG4 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 LMV344IPWRG4 reliable?
The price and inventory of LMV344IPWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV344IPWRG4 is usually 5 days.
3.What payment methods are accepted for LMV344IPWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV344IPWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV344IPWRG4?
LMV344IPWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV344IPWRG4 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 LMV344IPWRG4?
For technical support, including LMV344IPWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV344IPWRG4 requirements.
6.How does Aetrix verify that LMV344IPWRG4 is sourced from the original manufacturer or authorized distributors?
All LMV344IPWRG4 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 LMV344IPWRG4 meets industry standards.
7.What is the process for return or replacement of LMV344IPWRG4?
All LMV344IPWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV344IPWRG4, 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 LMV344IPWRG4 part is unused and in its original packaging.
Return procedure for LMV344IPWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV344IPWRG4 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…
