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Texas Instruments LMV358AQDGKRQ1
- Part No.:
- LMV358AQDGKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV358AQDGKRQ1.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:15,632
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Product details
Overview
LMV358AQDGKRQ1 from Texas Instruments is a dual-channel, AEC-Q100 Grade 1 qualified automotive operational amplifier with rail-to-rail output, ±1 mV input offset voltage, 1 MHz unity-gain bandwidth, and 70 µA per channel quiescent current. It operates from 2.5 V to 5.5 V supply and delivers 20 mV rail-to-rail output swing into 10 kΩ at 5.5 V - enabling precision low-side current sensing in HEV/EV motor control and ADAS sensor interfaces.
For engineers reviewing the LMV358AQDGKRQ1 datasheet, LMV358AQDGKRQ1 pinout, LMV358AQDGKRQ1 application, or LMV358AQDGKRQ1 equivalent, key selection criteria include its AEC-Q100 qualification, resistive open-loop output impedance for high capacitive-load stability (up to 500 pF), integrated RFI/EMI filtering, and −40°C to +125°C operating range - all critical for infotainment, body electronics, and powertrain current-sensing circuits.
Technical Context
The LMV358AQDGKRQ1 implements a P-channel/N-channel parallel input stage to eliminate phase reversal during overdrive while maintaining rail-to-rail input common-mode range (V− − 0.1 V to V+ − 1 V). Its class-AB output stage achieves true rail-to-rail swing with 1200 Ω open-loop output impedance at 1 MHz - enabling stable operation with >500 pF capacitive loads without external compensation.
This dual op amp is unity-gain stable and features internal EMI rejection filtering (EMIRR+ > 80 dB at 900 MHz), 30 nV/√Hz input voltage noise at 10 kHz, and 10 pA input bias current - making it suitable for low-noise, low-power signal conditioning in safety-critical automotive subsystems where supply headroom is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5 V to 5.5 V - supports single-supply battery-powered systems including 3.3 V and 5 V automotive domains |
| Input Offset Voltage | ±1 mV (typ) - enables accurate DC-coupled amplification in current-sense and sensor front-ends |
| Unity-Gain Bandwidth | 1 MHz - sufficient for closed-loop gain ≥10 up to ~100 kHz in motor control feedback paths |
| Quiescent Current | 70 µA per channel - allows dual-amplifier operation in always-on modules with <150 µA total supply draw |
| Rail-to-Rail Output Swing | Within 20 mV of rails into 10 kΩ - maximizes dynamic range for ADC interfacing in 3.3 V or 5 V systems |
| Capacitive Load Drive | Stable with up to 500 pF - eliminates need for isolation resistors when driving long traces or ADC input capacitance |
| EMI Rejection Ratio | >80 dB at 900 MHz - suppresses RF interference from cellular, Bluetooth, and radar sources in vehicle cabins |
Pinout & Package
DGK package: 8-pin VSSOP (3.00 mm × 3.00 mm), thin-profile surface-mount package optimized for space-constrained automotive PCBs with thermal resistance RθJA = 196.6°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives downstream circuitry; rail-to-rail capable with 40 mA short-circuit current |
| 2 | –IN A | Inverting input, channel A - accepts feedback network for inverting configurations or differential sensing |
| 3 | +IN A | Non-inverting input, channel A - connects to reference or sensor signal; CMVR extends to V− − 0.1 V |
| 4 | V− | Negative supply or ground - serves as common return for single-supply operation; not internally connected to substrate |
| 5 | +IN B | Non-inverting input, channel B - independent input for second signal path (e.g., temperature compensation) |
| 6 | –IN B | Inverting input, channel B - used for second closed-loop configuration; electrically isolated from channel A |
| 7 | OUT B | Amplifier B output - fully independent output stage; shares no internal nodes with OUT A |
| 8 | V+ | Positive supply - accepts 2.5–5.5 V; PSRR = 78–100 dB ensures immunity to supply ripple |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation with HBM ESD Level 2 (±2 kV) and CDM Level C6 (±1 kV) |
| No phase reversal under overdrive | Parallel P/N-channel input stage prevents output polarity inversion during input saturation - critical for fault-tolerant sensing |
| Resistive open-loop output impedance | 1200 Ω at 1 MHz - simplifies stability with capacitive loads; eliminates need for series output resistor |
| Integrated RFI/EMI filter | Rejects >80 dB of 900 MHz interference - reduces post-layout filtering in infotainment and ADAS ECUs |
| Low input bias current | 10 pA (typ) - minimizes voltage error across high-impedance sensor bridges and thermistor networks |
Applications
| Infotainment Audio Preamp | ADAS Camera Sensor Interface |
|---|---|
Use Scenario: Amplifying low-level analog audio signals from MEMS microphones in head unit or digital cockpit systems. IC Role / Device Role / Timing Role: Dual-channel DC-coupled preamplifier with rail-to-rail output driving 3.3 V SAR ADC inputs. Use Value: 30 nV/√Hz noise and 1 MHz bandwidth preserve audio fidelity; 70 µA/channel enables always-listening mode without battery drain. |
Use Scenario: Conditioning pixel-level analog outputs from CMOS image sensors in surround-view or forward-facing cameras. IC Role / Device Role / Timing Role: Dual-channel buffer and gain stage before ADC sampling; handles wide common-mode swing from sensor bias. Use Value: Rail-to-rail input (V− − 0.1 V) accommodates sensor dark-current offsets; EMI filtering suppresses switching noise from nearby DC/DC converters. |
| HEV/EV Inverter Current Sensing | Body Control Module Temperature Monitoring |
Use Scenario: Low-side shunt-based current measurement in traction inverter gate driver feedback loops. IC Role / Device Role / Timing Role: Precision dual-op-amp configured as differential amplifier for bidirectional current detection. Use Value: ±1 mV offset and 10 pA bias current minimize gain error in 50–100 mV shunt voltages; AEC-Q100 Grade 1 ensures reliability at 125°C junction. |
Use Scenario: Linearizing and amplifying NTC thermistor outputs for cabin HVAC or battery thermal management. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end with matched gain paths for differential temperature sensing. Use Value: 125°C max operating temperature matches under-hood thermal requirements; 70 µA/channel supports multi-sensor polling without MCU wake-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel automotive op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV358AQDRQ1 | SOIC-8 package (3.91 mm × 4.90 mm); higher RθJA = 151.9°C/W; same electrical specs | Better suited for through-hole prototyping or legacy board layouts requiring SOIC footprint | Select when mechanical compatibility with existing SOIC footprints is required; thermal performance less optimal in dense layouts |
| TSV912IQDRQ1 | Higher GBW (8 MHz), lower noise (14 nV/√Hz), but higher IQ (160 µA/ch); same AEC-Q100 Grade 1 | Preferred for higher-bandwidth sensor interfaces (e.g., ultrasonic parking assist) where power budget allows | Choose when bandwidth >1 MHz or sub-20 nV/√Hz noise is mandatory; avoid if ultra-low quiescent current is critical |
Compared with LMV358AQDGKRQ1, LMV358AQDRQ1 offers identical functionality in a larger SOIC package for easier assembly, while TSV912IQDRQ1 trades 2.3× higher quiescent current for 8× greater bandwidth and half the input noise - making each alternative optimal for distinct thermal, layout, or signal integrity constraints.
Availability
LMV358AQDGKRQ1 is available at Aetrix Electronics and suitable for HEV/EV inverter control, ADAS camera modules, and automotive body electronics requiring stable component supply across extended temperature ranges and AEC-Q100 compliance.
Supply support for LMV358AQDGKRQ1 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 deep expertise in automotive-grade IC design and manufacturing.
The LMV3xxA-Q1 product line was engineered specifically for low-voltage, rail-to-rail signal conditioning in AEC-Q100 Grade 1 automotive subsystems - prioritizing EMI robustness, thermal stability, and precision under battery-voltage variation.
FAQ
What is the maximum capacitive load the LMV358AQDGKRQ1 can drive without oscillation?
The LMV358AQDGKRQ1 is characterized for stable operation with up to 500 pF capacitive load due to its resistive open-loop output impedance. This eliminates the need for external series resistors in ADC interface or long-trace applications. For loads exceeding 500 pF, TI recommends verifying stability via phase margin measurement; the LMV358AQDGKRQ1 maintains >45° phase margin at 1000 pF per typical characteristics.
Does the LMV358AQDGKRQ1 support true rail-to-rail input common-mode range?
The LMV358AQDGKRQ1 provides rail-to-rail output swing but has an input common-mode voltage range from V− − 0.1 V to V+ − 1 V. This allows operation with inputs extending slightly below ground in single-supply configurations, but does not support full rail-to-rail input. The P/N-channel parallel input architecture prevents phase reversal when inputs exceed this range, unlike earlier generations.
How does the LMV358AQDGKRQ1 handle electromagnetic interference in automotive environments?
The LMV358AQDGKRQ1 integrates on-die RFI and EMI rejection filtering, achieving >80 dB EMIRR+ at 900 MHz. This is validated per AEC-Q100 test methods and enables reliable operation near cellular antennas, radar modules, and switching power supplies without external ferrite beads or RC filters - reducing BOM count and PCB area in ADAS ECUs.
Is the LMV358AQDGKRQ1 pin-compatible with non-automotive versions like LMV358IDGKR?
No - while the LMV358AQDGKRQ1 and LMV358IDGKR share identical DGK (VSSOP-8) pinout and basic electrical behavior, the Q1 version includes enhanced ESD protection (HBM Level 2), extended temperature validation (−40°C to +125°C), and automotive-specific process controls. Substituting non-Q1 parts voids AEC-Q100 compliance and may compromise reliability in safety-critical systems.
What is the overload recovery time specification for the LMV358AQDGKRQ1?
The LMV358AQDGKRQ1 has a typical overload recovery time of 850 ns, defined as the time required for the output to return from saturation to linear operation after overdrive. This fast recovery supports accurate pulse-width measurement and transient current monitoring in motor control applications where rapid signal transitions occur.
LMV358AQDGKRQ1 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:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.7V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 70µA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LMV358AQDGKRQ1 FAQ
1.How can I place an order for LMV358AQDGKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV358AQDGKRQ1 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 LMV358AQDGKRQ1 reliable?
The price and inventory of LMV358AQDGKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV358AQDGKRQ1 is usually 5 days.
3.What payment methods are accepted for LMV358AQDGKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV358AQDGKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV358AQDGKRQ1?
LMV358AQDGKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV358AQDGKRQ1 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 LMV358AQDGKRQ1?
For technical support, including LMV358AQDGKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV358AQDGKRQ1 requirements.
6.How does Aetrix verify that LMV358AQDGKRQ1 is sourced from the original manufacturer or authorized distributors?
All LMV358AQDGKRQ1 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 LMV358AQDGKRQ1 meets industry standards.
7.What is the process for return or replacement of LMV358AQDGKRQ1?
All LMV358AQDGKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LMV358AQDGKRQ1, 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 LMV358AQDGKRQ1 part is unused and in its original packaging.
Return procedure for LMV358AQDGKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV358AQDGKRQ1 Tags
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LM358DT
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LM358DR
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MCP6006UT-E/OT
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LM358P
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