Texas Instruments

LMV321A-Q1 Automotive Rail-to-Rail Output Op Amp

Texas Instruments' single-channel offset voltage amp is ideal for low-supply applications and driving sampling ADCs

Image of Texas Instruments' LMV321A-Q1 Automotive Rail-to-Rail Output Op AmpTexas Instruments' LMV321A-Q1 is a single low-voltage (2.5 V to 5.5 V) automotive operational amplifier (op amp) with rail-to-rail output swing capabilities. This op amp provides a cost-effective method for space-constrained applications such as infotainment and lighting where low-voltage operation and high capacitive-load drive are required. The capacitive-load drive is 500 pF and the resistive open-loop output impedance makes stabilization easier with much higher capacitive loads. The LMV321A-Q1 is designed for low-voltage operation (2.5 V to 5.5 V) with performance specifications similar to the LMV3xx-Q1 devices.

The device's robust design simplifies the circuit design. Additional features include unity-gain stability, an integrated RFI and EMI rejection filter, and no-phase reversal in overdrive conditions. The op amp is available in industry-standard packages such as SOIC, MSOP, SOT-23, and TSSOP.

Features
  • AEC-Q100-qualified for automotive applications:
    • Temperature range Grade 1 TA: -40°C to +125°C
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • Low input offset voltage: ±1 mV
  • Rail-to-rail output
  • Unity-gain bandwidth: 1 MHz
  • Low broadband noise: 30 nV/√ Hz
  • Low input bias current: 10 pA
  • Low quiescent current: 70 µA/ch.
  • Unity-gain stable
  • Internal RFI and an EMI filter
  • Operational supply voltage: as low as 2.5 V
  • Easier to stabilize with a higher capacitive load due to the resistive open-loop output impedance
Applications
  • Optimized for AEC-Q100 Grade 1 applications
  • Infotainment and clusters
  • Passive safety
  • Body electronics and lighting
  • HEV/EV inverters and motor controls
  • Onboard (OBC) and wireless chargers
  • Powertrain current sensors
  • Advanced driver assistance systems (ADAS)
  • Single-supply, low-side, and unidirectional current-sensing circuits

LMV321A-Q1 Automotive Rail-to-Rail Output Op Amps

ImageManufacturer Part NumberDescriptionOutput TypeCurrent - SupplyPackage / CaseAvailable QuantityPriceView Details
IC OPAMP GP 1 CIRCUIT SOT23-5LMV321AUIDBVRIC OPAMP GP 1 CIRCUIT SOT23-5-70µASC-74A, SOT-75330367 - Immediate$2.88View Details
IC OPAMP GP 1 CIRCUIT SC70-5LMV321AIDCKRIC OPAMP GP 1 CIRCUIT SC70-5Rail-to-Rail70µA5-TSSOP, SC-70-5, SOT-35347288 - Immediate$1.65View Details
IC OPAMP GP 1 CIRCUIT SOT23-5LMV321AIDBVRIC OPAMP GP 1 CIRCUIT SOT23-5Rail-to-Rail80µASC-74A, SOT-753191 - Immediate$1.65View Details
AUTOMOTIVE, SINGLE-CHANNEL, 5.5-LMV321AQDCKRQ1AUTOMOTIVE, SINGLE-CHANNEL, 5.5-Push-Pull, Rail-to-Rail70µAAEC-Q1001055 - Immediate$4.20View Details
Published: 2023-03-23

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