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Texas Instruments LMV358QPWRQ1
- Part No.:
- LMV358QPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV358QPWRQ1.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,114
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Product details
Overview
LMV358QPWRQ1 from Texas Instruments is an automotive-qualified dual rail-to-rail output operational amplifier operating from 2.7 V to 5.5 V supply, delivering 1 MHz unity-gain bandwidth, 1 V/µs slew rate, and 210 µA typical supply current per amplifier. It features ground-sensing input common-mode range and is used in battery-powered sensor signal conditioning and automotive body control modules.
For engineers reviewing the LMV358QPWRQ1 datasheet, LMV358QPWRQ1 pinout, LMV358QPWRQ1 application, or LMV358QPWRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (−40°C to +125°C), TSSOP-8 package footprint, rail-to-rail output swing (within 100 mV of rails at 10 kΩ load), and low-input-bias-current design enabling high-impedance source interfacing.
Technical Context
The LMV358QPWRQ1 implements a CMOS input stage with complementary differential pairs, enabling rail-to-rail output swing and input common-mode voltage range extending to ground. Its internal biasing supports stable operation down to 2.7 V while maintaining 60° phase margin across temperature and capacitive loads up to 1 nF.
It uses a single-stage folded-cascode architecture optimized for low quiescent current and fast settling in low-voltage, low-power applications. The device lacks internal compensation for gain ≥10 but remains unity-gain stable with CL ≤ 200 pF and RL ≥ 2 kΩ, as verified by phase margin measurements at 25°C and −40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - Enables direct interface with 3.3 V and 5 V automotive microcontrollers without level-shifting. |
| Unity-Gain Bandwidth | 1 MHz - Supports audio-band filtering and medium-speed sensor amplification (e.g., throttle position, cabin temperature). |
| Slew Rate | 1 V/µs - Limits large-signal transient response time to ≥1 µs for 1 V step, suitable for DC-coupled analog front-ends. |
| Input Offset Voltage | 7 mV max (typ 1.7 mV) - Determines baseline error in precision DC gain stages; requires calibration if sub-mV accuracy needed. |
| Supply Current (per amp) | 210 µA typ - Enables dual-amplifier operation in always-on vehicle subsystems with <500 µA total quiescent budget. |
| Output Swing (RL = 10 kΩ) | VCC − 100 mV (high), 65 mV (low) - Delivers full dynamic range into standard resistive loads without clipping near supply rails. |
| Common-Mode Input Range | −0.2 V to VCC + 0.2 V - Accepts inputs at ground potential, critical for single-supply transducer interfaces (e.g., thermistor bridges). |
Pinout & Package
TSSOP-8 package (PW drawing), 3.0 mm × 4.4 mm footprint, 0.65 mm pitch, RoHS-compliant green finish, MSL Level-1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - Drives downstream ADC input or active filter stage; rail-to-rail swing enables full utilization of 12-bit+ converter range. |
| 2 | IN− A | Inverting input A - Connected to feedback network; high-impedance node sensitive to PCB leakage and stray capacitance. |
| 3 | IN+ A | Non-inverting input A - Interfaces directly with low-current sensors (e.g., photodiodes, RTDs) due to 250 nA max input bias current. |
| 4 | GND | Analog ground reference - Must be tied to clean system ground plane; separate from digital ground to avoid noise coupling. |
| 5 | IN+ B | Non-inverting input B - Independent channel allows dual-sensor monitoring (e.g., dual-axis accelerometer or dual thermocouple cold-junction compensation). |
| 6 | IN− B | Inverting input B - Configurable for differential or single-ended gain; shares same input stage topology and offset characteristics as Channel A. |
| 7 | OUT B | Amplifier B output - Electrically isolated from OUT A; supports independent signal paths without crosstalk (>120 dB at 1 kHz). |
| 8 | VCC+ | Positive supply - Requires local 100 nF ceramic decoupling placed ≤2 mm from pin to suppress high-frequency supply noise. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 100 mV of VCC and 65 mV of GND at 10 kΩ load - Maximizes signal dynamic range in 3.3 V systems where headroom is constrained. |
| Ground-sensing input | Common-mode range includes 0 V - Eliminates need for negative supply or level-shifting circuitry when amplifying signals referenced to chassis ground. |
| AEC-Q100 Grade 1 | Qualified for −40°C to +125°C operation - Meets automotive powertrain and body electronics thermal requirements without derating. |
| No crossover distortion | CMOS input stage avoids Class AB transition artifacts - Preserves signal fidelity in audio and precision analog measurement paths. |
| Low input bias current | 250 nA max at 25°C - Enables use with high-impedance sources (e.g., pH electrodes, piezoelectric sensors) without significant DC error. |
Applications
| Engine Coolant Temperature Sensing | Automotive Cabin Air Quality Monitoring |
|---|---|
Use Scenario: Amplifies voltage from NTC thermistor in engine coolant loop, feeding 12-bit ADC in ECU. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with 10× fixed gain, rejecting common-mode noise from 12 V battery ripple. Use Value: 7 mV max input offset ensures ≤0.5°C measurement error over full temperature range; rail-to-rail output fully utilizes ADC's 0–3.3 V input span. | Use Scenario: Condition signals from dual CO₂ and VOC sensors in HVAC control module. IC Role / Device Role / Timing Role: Dual-channel buffer and gain stage - one channel for CO₂ sensor output, second for VOC sensor, both referenced to GND. Use Value: Independent channels eliminate inter-channel crosstalk; ground-sensing inputs accept 0–100 mV sensor outputs without external biasing. |
| Electric Power Steering Torque Sensor Interface | Advanced Driver Assistance System (ADAS) Camera Bias Supply |
Use Scenario: Amplifies Wheatstone bridge output from torque sensor in EPS motor control unit. IC Role / Device Role / Timing Role: Instrumentation-grade front-end amplifier with matched input impedance and low noise (39 nV/√Hz at 5 V). Use Value: 1 V/µs slew rate handles rapid torque transients; 210 µA supply current minimizes heat generation in sealed EPS housing. | Use Scenario: Provides stable, low-noise bias voltage for CMOS image sensor pixel array in rear-view camera module. IC Role / Device Role / Timing Role: Low-noise voltage follower with 100 mV dropout - regulates 3.3 V supply to sensor analog core. Use Value: Rail-to-rail output delivers 3.2 V minimum bias under load; 0.21 pA/√Hz input current noise prevents pixel-level dark current modulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV358QDRQ1 | SOIC-8 package (4.9 mm × 3.9 mm), higher θJA (97°C/W vs 149°C/W), identical electrical specs. | Preferred for through-hole prototyping or legacy PCBs with SOIC footprints; less suitable for space-constrained ADAS modules. | Select when board real estate permits larger package and thermal management uses heatsinking or airflow. |
| TSV912IQDT | Higher GBW (8 MHz), lower input offset (1.5 mV typ), but higher ICC (820 µA typ) and not AEC-Q100 qualified. | Used in non-automotive industrial sensors requiring faster response; unsuitable for safety-critical vehicle systems. | Choose only for non-automotive designs needing enhanced AC performance and where qualification is not required. |
Compared with LMV358QDRQ1 and TSV912IQDT, the LMV358QPWRQ1 offers optimal balance of automotive qualification, compact TSSOP-8 footprint, and ultra-low quiescent current - making it the preferred choice for thermally constrained, safety-compliant vehicle subsystems.
Availability
LMV358QPWRQ1 is available at Aetrix Electronics and suitable for automotive body electronics, battery management systems, and ADAS sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV358QPWRQ1 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 over 90 years of innovation in automotive, industrial, and consumer electronics.
The LMV3xx-Q1 product line was designed specifically for cost-sensitive, low-voltage automotive applications demanding rail-to-rail output, ground-sensing inputs, and AEC-Q100 qualification - targeting body control, comfort, and sensor signal conditioning.
FAQ
What is the maximum operating junction temperature for LMV358QPWRQ1?
The LMV358QPWRQ1 has a maximum operating virtual junction temperature (TJ) of 150°C, as specified in the Absolute Maximum Ratings table. This limit applies under worst-case ambient and power dissipation conditions, and must be respected to ensure reliability in automotive under-hood environments where ambient temperatures reach +125°C.
Does LMV358QPWRQ1 support single-supply operation below 3.0 V?
Yes, LMV358QPWRQ1 supports true single-supply operation from 2.7 V to 5.5 V. At 2.7 V, it maintains 1 MHz unity-gain bandwidth, 1 V/µs slew rate, and rail-to-rail output swing - enabling direct integration with 2.8 V Li-ion battery systems or low-dropout regulator outputs in automotive infotainment modules.
Is LMV358QPWRQ1 pin-compatible with standard LM358 devices?
No, LMV358QPWRQ1 is not pin-compatible with LM358. While both are dual op-amps, LM358 uses SOIC-8 or DIP-8 with different pin assignments (e.g., LM358 pin 1 = OUT A, pin 2 = IN− A, pin 3 = IN+ A, pin 4 = GND), whereas LMV358QPWRQ1 follows TI's modern TSSOP-8 layout (pin 1 = OUT A, pin 2 = IN− A, pin 3 = IN+ A, pin 4 = GND). PCB redesign is required for migration.
What is the input bias current specification for LMV358QPWRQ1 at 125°C?
At the full automotive temperature range (−40°C to +125°C), the input bias current for LMV358QPWRQ1 is specified as 500 nA maximum. This value reflects worst-case drift over temperature and must be accounted for in high-impedance sensor circuits (e.g., >100 kΩ source impedance) to avoid significant DC offset errors.
Can LMV358QPWRQ1 drive a 2 kΩ load while maintaining rail-to-rail output swing?
Yes, LMV358QPWRQ1 can drive a 2 kΩ load with rail-to-rail output swing: at VCC = 5 V, the high-level output reaches VCC − 400 mV and low-level output sinks to 400 mV above GND. This meets rail-to-rail definition for many applications, though full swing (to within 100 mV of rails) is guaranteed only for RL ≥ 10 kΩ per the Electrical Characteristics table.
LMV358QPWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 nA
- Voltage - Input Offset:
- 1.7 mV
- Current - Supply:
- 130µA (x2 Channels)
- Current - Output / Channel:
- 160 mA
- Voltage - Supply Span (Min):
- 2.7 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:
- 8-TSSOP
LMV358QPWRQ1 FAQ
1.How can I place an order for LMV358QPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV358QPWRQ1 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 LMV358QPWRQ1 reliable?
The price and inventory of LMV358QPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV358QPWRQ1 is usually 5 days.
3.What payment methods are accepted for LMV358QPWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV358QPWRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV358QPWRQ1?
LMV358QPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV358QPWRQ1 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 LMV358QPWRQ1?
For technical support, including LMV358QPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV358QPWRQ1 requirements.
6.How does Aetrix verify that LMV358QPWRQ1 is sourced from the original manufacturer or authorized distributors?
All LMV358QPWRQ1 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 LMV358QPWRQ1 meets industry standards.
7.What is the process for return or replacement of LMV358QPWRQ1?
All LMV358QPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LMV358QPWRQ1, 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 LMV358QPWRQ1 part is unused and in its original packaging.
Return procedure for LMV358QPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV358QPWRQ1 Tags
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