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Texas Instruments LMV341QDCKRQ1
- Part No.:
- LMV341QDCKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
LMV341QDCKRQ1.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,914
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Product details
Overview
LMV341QDCKRQ1 from Texas Instruments is a single-channel, rail-to-rail output CMOS operational amplifier qualified for automotive applications, operating from 2.7V to 5.5V supply, delivering 1MHz gain bandwidth, 1V/μs slew rate, and 100μA typical supply current per channel. It serves as a precision signal-conditioning amplifier in battery-powered sensor interfaces and automotive body control modules.
For engineers reviewing the LMV341QDCKRQ1 datasheet, LMV341QDCKRQ1 pinout, LMV341QDCKRQ1 application, or LMV341QDCKRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (–40°C to +125°C), ultra-low 1pA input bias current, 0.25mV typical input offset voltage, and integrated shutdown functionality with 5μs turn-on time.
Technical Context
The LMV341QDCKRQ1 employs a PMOS input stage enabling ultra-low input bias current and wide common-mode input range extending to –0.2V below ground and up to 0.8V below V+. Its rail-to-rail output swing supports full dynamic range utilization in low-voltage systems.
It features internal unity-gain stable compensation optimized for capacitive loads up to 200pF, with phase margin ≥70° across temperature and supply voltage (2.7V and 5V). Shutdown mode reduces supply current to ≤1μA while preserving fast wake-up capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5V to 5.5V - supports direct connection to 3.3V and 5V automotive rails without regulation |
| Gain Bandwidth Product | 1MHz - enables stable closed-loop operation up to ~100kHz at unity gain with adequate phase margin |
| Slew Rate | 1V/μs - sufficient for 10kHz full-scale sine wave output at 10Vpp without distortion |
| Input Offset Voltage | 0.25mV typical - ensures ≤0.5% error in 500mV full-scale sensor signal amplification |
| Input Bias Current | 1pA typical - minimizes voltage error across high-impedance source networks (>100MΩ) |
| Shutdown Current | ≤1μA - enables microamp-level system sleep mode power management |
| Operating Temperature | –40°C to +125°C - meets AEC-Q100 Grade 1 requirements for under-hood automotive use |
Pinout & Package
LMV341QDCKRQ1 is housed in a 6-pin SC-70 (DCK) package, measuring 2.0mm × 1.25mm × 0.9mm, compatible with standard 0.65mm pitch pick-and-place equipment and reflow profiles (MSL Level-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting Input | Differential input node; high-impedance PMOS gate; requires matched trace routing for noise rejection |
| 2 (IN+) | Non-inverting Input | Differential input node; same impedance and noise sensitivity as IN−; used for reference or sensor input |
| 3 (V− / GND) | Negative Supply / Ground | Reference return path for all signals; must be low-inductance connection to system ground plane |
| 4 (OUT) | Amplifier Output | Rail-to-rail capable output driving resistive or light capacitive loads (≤200pF); no external pull-up required |
| 5 (V+) | Positive Supply | Single-supply input; accepts 2.7V–5.5V; bypass capacitor (0.1μF) required adjacent to pin |
| 6 (SHDN) | Shutdown Control | Active-low digital enable; drives <0.2V for shutdown (ICC ≤1μA); >1.7V at 2.7V supply or >3.1V at 5V for active mode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Grade 1 (–40°C to +125°C) - validated for automotive powertrain, chassis, and body electronics |
| Rail-to-Rail Output | Swings within 24mV of rails (RL = 2kΩ, 2.7V) - maximizes ADC input dynamic range in 3.3V systems |
| Ultra-Low Input Bias Current | 1pA typical - eliminates significant offset error when interfacing with high-Z pH or thermopile sensors |
| Fast Shutdown Wake-Up | 5μs turn-on time - enables burst-mode sensing without latency penalty in duty-cycled systems |
| Low 1/f Noise Corner | 20nV/√Hz at 10kHz - supports precision DC-coupled amplification of slow-varying automotive sensor signals |
Applications
| Automotive Cabin Temperature Sensor Interface | Engine Coolant Level Monitoring Circuit |
|---|---|
Use Scenario: Amplifies low-level output from NTC thermistor network in HVAC control unit, digitized by 12-bit ADC. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with offset calibration support and rail-to-rail output swing. Use Value: 0.25mV offset enables <0.1°C measurement resolution; 1pA bias current prevents thermistor self-heating error. | Use Scenario: Conditioned signal from capacitive coolant level transducer in engine bay, exposed to thermal cycling. IC Role / Device Role / Timing Role: Single-supply transimpedance amplifier with shutdown during idle periods. Use Value: 125°C rating ensures reliability; 5μs wake-up allows 100ms sampling intervals without latency impact. |
| Electric Power Steering (EPS) Torque Sensor Signal Conditioning | Automotive Rain/Light Sensor Analog Front-End |
Use Scenario: Amplifies Wheatstone bridge output from strain gauge-based torque sensor in EPS module. IC Role / Device Role / Timing Role: Low-noise, low-drift instrumentation amplifier driver stage before ΣΔ ADC. Use Value: 20nV/√Hz noise floor preserves SNR; 1.7μV/°C drift limits torque error to <0.5% over full temperature range. | Use Scenario: Processes photodiode current from ambient light and rain detection optics mounted on windshield. IC Role / Device Role / Timing Role: Transimpedance amplifier with programmable gain and shutdown between readings. Use Value: Rail-to-rail output delivers full 3.3V ADC range; shutdown cuts quiescent current to <1μA during 99% of cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV341QDBVRQ1 | Same electrical specs; SOT-23-6 package (2.9mm × 1.6mm) vs. SC-70-6 (2.0mm × 1.25mm) | Larger footprint; higher thermal resistance (165°C/W vs. 259°C/W) but better power dissipation margin | Select for manual prototyping or where board space permits larger package |
| TSV911IQDBVRQ1 | Higher GBW (8MHz), lower offset (0.3mV max), but higher ICC (150μA typ) and no shutdown pin | Not pin-compatible; lacks shutdown function; requires external enable logic for power gating | Select when bandwidth >1MHz is required and shutdown is managed externally |
Compared with LMV341QDCKRQ1, LMV341QDBVRQ1 offers identical performance in a larger, more hand-solderable package, while TSV911IQDBVRQ1 trades shutdown capability and ultra-low bias current for higher speed-making LMV341QDCKRQ1 optimal for space-constrained, always-on automotive sensor nodes requiring micro-power management.
Availability
LMV341QDCKRQ1 is available at Aetrix Electronics and suitable for automotive cabin control, engine monitoring, and ADAS sensor interface applications requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for LMV341QDCKRQ1 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 company specializing in analog and embedded processing technologies, with leadership in automotive-grade ICs and broad portfolio coverage from signal chain to power management.
The LMV341-Q1 product line delivers low-power, rail-to-rail CMOS op-amps engineered specifically for automotive signal conditioning in harsh environments, emphasizing AEC-Q100 reliability, extended temperature operation, and robust ESD immunity.
FAQ
What is the maximum operating junction temperature for LMV341QDCKRQ1?
The LMV341QDCKRQ1 has an absolute maximum virtual junction temperature (TJ) of 150°C. Its specified operating free-air temperature range is –40°C to +125°C, and thermal design must ensure TJ remains ≤150°C under worst-case power dissipation and ambient conditions using its SC-70 package thermal impedance of 259°C/W.
Does LMV341QDCKRQ1 support dual-supply operation?
No, LMV341QDCKRQ1 is designed exclusively for single-supply operation from 2.5V to 5.5V. Its input common-mode range extends to –0.2V below ground, allowing inputs slightly negative of GND, but it lacks dedicated V– pin and cannot be operated with split supplies like ±2.5V.
What is the recommended bypass capacitor for LMV341QDCKRQ1?
A 0.1μF ceramic capacitor placed as close as possible to the V+ (Pin 5) and GND (Pin 3) pins is recommended for LMV341QDCKRQ1. This minimizes high-frequency supply noise coupling and ensures stability, especially during fast output transitions or shutdown wake-up events.
Can LMV341QDCKRQ1 drive a 600Ω load?
Yes, LMV341QDCKRQ1 can drive a 600Ω load, delivering ±15mA short-circuit current (sourcing/sinking). At 5V supply, its output swing remains within 60mV of each rail into 600Ω, supporting line-driver applications such as analog sensor outputs feeding legacy automotive ECUs with 600Ω input impedance.
Is LMV341QDCKRQ1 pin-compatible with non-automotive LMV341 variants?
Yes, LMV341QDCKRQ1 shares identical pinout and footprint with commercial-grade LMV341IDCKR, including SC-70-6 package and terminal assignments. However, only the Q1 variant is AEC-Q100 qualified and specified for –40°C to +125°C operation with enhanced reliability testing.
LMV341QDCKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- 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
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-6
LMV341QDCKRQ1 FAQ
1.How can I place an order for LMV341QDCKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV341QDCKRQ1 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 LMV341QDCKRQ1 reliable?
The price and inventory of LMV341QDCKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV341QDCKRQ1 is usually 5 days.
3.What payment methods are accepted for LMV341QDCKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV341QDCKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV341QDCKRQ1?
LMV341QDCKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV341QDCKRQ1 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 LMV341QDCKRQ1?
For technical support, including LMV341QDCKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV341QDCKRQ1 requirements.
6.How does Aetrix verify that LMV341QDCKRQ1 is sourced from the original manufacturer or authorized distributors?
All LMV341QDCKRQ1 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 LMV341QDCKRQ1 meets industry standards.
7.What is the process for return or replacement of LMV341QDCKRQ1?
All LMV341QDCKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LMV341QDCKRQ1, 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 LMV341QDCKRQ1 part is unused and in its original packaging.
Return procedure for LMV341QDCKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV341QDCKRQ1 Tags
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