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Texas Instruments LMV722QDGKRQ1
- Part No.:
- LMV722QDGKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV722QDGKRQ1.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,808
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Product details
Overview
LMV722QDGKRQ1 from Texas Instruments is a dual-channel, AEC-Q100 qualified automotive operational amplifier optimized for low-noise, low-voltage signal conditioning. It delivers 10 MHz unity-gain bandwidth, 5.25 V/µs slew rate, and 10.5 nV/√Hz input voltage noise at 1 kHz - enabling high-fidelity audio signal path and precision current sensing in engine control units and infotainment systems.
For engineers reviewing the LMV722QDGKRQ1 datasheet, LMV722QDGKRQ1 pinout, LMV722QDGKRQ1 application, or LMV722QDGKRQ1 equivalent, this page provides verified technical context, validated pin functions, confirmed rail-to-rail output behavior under 2.2–5.5 V supply, and automotive-grade ESD robustness (HBM 2 kV, CDM 1000 V) critical for safety-conscious design validation.
Technical Context
The LMV722QDGKRQ1 integrates two independent, unity-gain stable op amps with rail-to-rail output swing into loads as low as 600 Ω (120 mV from rail at 2.2 V), while supporting single-supply operation from 2.2 V to 5.5 V. Its input common-mode range includes ground, enabling direct low-side current sensing without level-shifting circuitry.
Designed for automotive environments, it features guaranteed operation from –40°C to +125°C ambient, input offset voltage ≤3.5 mV over temperature, and low supply current of 905 µA per amplifier at 2.2 V - balancing dynamic performance with power efficiency in thermally constrained ECUs and lighting modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.2 V to 5.5 V single supply - supports direct integration into 3.3 V and 5 V automotive domains without level translation. |
| Unity-Gain Bandwidth | 10 MHz - enables stable amplification of audio-band signals and fast transient response in motor control feedback loops. |
| Slew Rate | 5.25 V/µs - ensures minimal distortion on 1-kHz full-scale sine waves and accurate pulse reproduction in sensor interfaces. |
| Input Voltage Noise | 10.5 nV/√Hz at 1 kHz - preserves SNR in microphone preamps and analog front-ends where signal amplitudes are sub-millivolt. |
| Rail-to-Rail Output Swing | 120 mV from either rail into 600 Ω at 2.2 V - maximizes usable dynamic range in low-voltage ADC driver applications. |
| Input Common-Mode Range | Includes ground (–0.3 V to 1.3 V at 2.2 V) - allows direct sensing of shunt voltages in low-side current monitoring without biasing networks. |
| AEC-Q100 Qualification | Grade 1 (–40°C to +125°C), HBM Class 2 (2 kV), CDM Class C4B (1000 V) - certified for under-hood and cabin electronics deployment. |
Pinout & Package
LMV722QDGKRQ1 is housed in an 8-pin VSSOP (DGK) package measuring 3.00 mm × 3.00 mm, optimized for space-constrained automotive PCBs and high-density routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (1OUT) | Output of Amplifier 1 | Delivers rail-to-rail buffered signal; requires local 0.1-µF ceramic bypass capacitor to minimize supply-induced noise coupling. |
| 2 (1IN–) | Inverting Input of Amplifier 1 | High-impedance node sensitive to layout parasitics; must be routed short and shielded from noisy traces to preserve CMRR. |
| 3 (1IN+) | Non-inverting Input of Amplifier 1 | Accepts ground-referenced signals directly; enables low-side current sensing without input bias current error amplification. |
| 4 (VCC–) | Negative Power Supply | Connected to system ground in single-supply configurations; serves as reference for internal biasing and ESD protection diodes. |
| 5 (2IN+) | Non-inverting Input of Amplifier 2 | Independent channel input; shares same ground-referenced common-mode capability as Pin 3 for dual-sensor interfacing. |
| 6 (2IN–) | Inverting Input of Amplifier 2 | Supports differential configurations; internal ESD diodes clamp to VCC– and VCC+ rails, requiring external current limiting above 10 mA. |
| 7 (2OUT) | Output of Amplifier 2 | Electrically isolated from 1OUT; capable of sourcing/sinking ≥10 mA at 2.2 V, suitable for driving ADC reference buffers or LED bias circuits. |
| 8 (VCC+) | Positive Power Supply | Accepts 2.2–5.5 V; bypassing to VCC– with 0.1-µF ceramic capacitor near the pin is mandatory for stability and PSRR optimization. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise architecture | 10.5 nV/√Hz input voltage noise at 1 kHz enables <100-µVpp noise floor in 20-kHz audio band with proper gain staging. |
| Rail-to-rail output drive | Swings within 120 mV of supply rails into 600 Ω at 2.2 V - eliminates need for negative supply in single-ended sensor interfaces. |
| Ground-sensing input | Input common-mode range extends to –0.3 V below VCC–, allowing direct connection to shunt resistors in low-side current measurement. |
| Automotive thermal robustness | Specified for continuous operation at +125°C ambient with 176.3°C/W junction-to-ambient thermal resistance in VSSOP package. |
| ESD-hardened design | HBM 2000 V and CDM 1000 V ratings reduce field failure risk during assembly and in-cabin EMI exposure scenarios. |
Applications
| Infotainment Audio Signal Path | Engine Control Unit (ECU) Sensor Interface |
|---|---|
|
Use Scenario: Amplifying microphone or line-level audio signals before ADC conversion in head unit systems. IC Role / Device Role / Timing Role: Dual-channel voltage amplifier providing gain, DC blocking, and impedance buffering with minimal added noise. Use Value: 10.5 nV/√Hz noise and 10 MHz bandwidth preserve wideband audio fidelity while operating from 3.3 V supply, reducing BOM count versus discrete solutions. |
Use Scenario: Converting millivolt-level signals from oxygen or knock sensors into clean, rail-aligned voltages for microcontroller ADC sampling. IC Role / Device Role / Timing Role: Precision instrumentation amplifier stage with ground-referenced input and rail-to-rail output swing. Use Value: Input common-mode range including ground eliminates level-shifting components; 3.5 mV max offset ensures <1% error in 300-mV sensor outputs. |
| Automotive Lighting Current Monitoring | Body Control Module (BCM) Analog Front-End |
|
Use Scenario: Measuring LED string current via shunt resistor in adaptive headlight drivers. IC Role / Device Role / Timing Role: Low-side current sense amplifier with fixed-gain configuration and fast transient response. Use Value: 5.25 V/µs slew rate captures PWM-modulated current edges; rail-to-rail output ensures full-scale utilization of 12-bit ADC reference. |
Use Scenario: Conditioning analog signals from door lock actuators, seat position sensors, and HVAC thermistors. IC Role / Device Role / Timing Role: General-purpose dual op amp for filtering, buffering, and level shifting across multiple subsystems. Use Value: Dual-channel integration reduces footprint and interconnect complexity; AEC-Q100 qualification guarantees reliability across 15-year vehicle lifecycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-noise operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9062QDRQ1 | Higher GBW (10 MHz same), lower noise (7 nV/√Hz), but higher supply current (530 µA vs 905 µA per amp at 2.2 V). | Better suited for ultra-low-noise audio preamps; less optimal for battery-sensitive always-on modules due to higher quiescent current. | Select TLV9062QDRQ1 when noise floor is primary constraint and supply current is secondary; verify layout compatibility with VSSOP-8 footprint. |
| LMV722QDRQ1 | Same core specs, but in SOIC-8 (4.9 mm × 3.9 mm) - 63% larger footprint than DGK's 3.0 mm × 3.0 mm VSSOP. | Preferred for prototyping or legacy board reuse where VSSOP assembly capability is unavailable; not suitable for high-density automotive PCBs. | Choose LMV722QDRQ1 only if SOIC-8 reflow infrastructure exists and space constraints permit; no electrical or functional deviation from LMV722QDGKRQ1. |
Compared with TLV9062QDRQ1 and LMV722QDRQ1, LMV722QDGKRQ1 offers the optimal balance of automotive qualification, compact VSSOP packaging, and proven 10-MHz/10.5-nV/√Hz performance at lowest cost-per-function for volume ECU and lighting designs.
Availability
LMV722QDGKRQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, engine control units, and adaptive lighting modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV722QDGKRQ1 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 LMV722QDGKRQ1 belongs to TI's automotive-qualified precision op amp portfolio, engineered specifically for signal conditioning in harsh-temperature, high-reliability vehicle subsystems including powertrain, chassis, and body electronics.
FAQ
What is the maximum operating temperature for LMV722QDGKRQ1?
The LMV722QDGKRQ1 is rated for continuous operation from –40°C to +125°C ambient temperature, meeting AEC-Q100 Grade 1 requirements. This specification is validated across all electrical parameters in the datasheet, including input offset voltage drift, supply current, and output swing - ensuring reliable performance in under-hood and cabin-mounted automotive electronics where thermal stress is critical.
Does LMV722QDGKRQ1 support single-supply operation?
Yes, LMV722QDGKRQ1 is fully specified for single-supply operation from 2.2 V to 5.5 V. Its input common-mode voltage range includes ground (–0.3 V to 1.3 V at 2.2 V), and its rail-to-rail output swing enables full utilization of the supply range - making it ideal for low-voltage automotive domains such as 3.3-V infotainment processors and 5-V sensor hubs without requiring dual supplies.
What is the input offset voltage specification for LMV722QDGKRQ1?
The LMV722QDGKRQ1 has a maximum input offset voltage of 3.5 mV over the full operating temperature range (–40°C to +125°C), with a typical value of 0.02 mV at 25°C. This parameter is measured under recommended operating conditions (VCC+ = 2.2 V, RL > 1 MΩ) and directly impacts accuracy in precision current sensing and sensor signal conditioning applications where sub-millivolt errors must be minimized.
Can LMV722QDGKRQ1 drive capacitive loads?
Yes, LMV722QDGKRQ1 demonstrates good capacitive load drive capability, especially at low supply voltages. The datasheet confirms stable operation with up to 21.2 nF capacitive load in pulse response testing (Figure 19–25), and layout guidelines recommend minimizing stray capacitance at the inverting input to preserve phase margin - critical for maintaining stability in ADC driver and filter applications.
Is LMV722QDGKRQ1 pin-compatible with standard LMV722 variants?
No - LMV722QDGKRQ1 uses the DGK (8-pin VSSOP) package with 0.65-mm pitch, whereas non-automotive LMV722 variants may use SOIC-8 or other footprints. While electrical functionality is identical, mechanical compatibility requires verification against the exact package drawing (SLAS877C). Always cross-check land patterns and solder paste stencil design before board release.
LMV722QDGKRQ1 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:
- 5.25V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 260 nA
- Voltage - Input Offset:
- 80 µV
- Current - Supply:
- 2.01mA (x2 Channels)
- Current - Output / Channel:
- 52.6 mA
- Voltage - Supply Span (Min):
- 2.2 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-VSSOP
LMV722QDGKRQ1 FAQ
1.How can I place an order for LMV722QDGKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV722QDGKRQ1 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 LMV722QDGKRQ1 reliable?
The price and inventory of LMV722QDGKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV722QDGKRQ1 is usually 5 days.
3.What payment methods are accepted for LMV722QDGKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV722QDGKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV722QDGKRQ1?
LMV722QDGKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV722QDGKRQ1 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 LMV722QDGKRQ1?
For technical support, including LMV722QDGKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV722QDGKRQ1 requirements.
6.How does Aetrix verify that LMV722QDGKRQ1 is sourced from the original manufacturer or authorized distributors?
All LMV722QDGKRQ1 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 LMV722QDGKRQ1 meets industry standards.
7.What is the process for return or replacement of LMV722QDGKRQ1?
All LMV722QDGKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LMV722QDGKRQ1, 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 LMV722QDGKRQ1 part is unused and in its original packaging.
Return procedure for LMV722QDGKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV722QDGKRQ1 Tags
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