LMV344QIPWRQ1 - Quad 1MHz Rail-to-Rail Op-Amp | TI Automotive
MPN: LMV344QIPWRQ1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.72 | $0.72 |
| 10 | $0.65 | $6.50 |
| 100 | $0.52 | $52.00 |
| 500 | $0.44 | $220.00 |
| 1,000 | $0.36 | $360.00 |
Drop-in alternatives for LMV344QIPWRQ1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
LMV344IPWRQ1
β Drop-Inπ Reference alternative (not in catalog)
LMV344IPWR
β Drop-Inβ In Stock
$0.28 / Unit
View Datasheet βMC33204DR2
β Drop-Inπ Reference alternative (not in catalog)
TS924IQ2T
β Drop-Inπ Reference alternative (not in catalog)
LMV344QIPWRQ1 Maximum Ratings & Electrical Characteristics
| Number of Channels | 4 (Quad) |
| Gain-Bandwidth Product | 1 MHz |
| Output Current | 75 mA (high output current) |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Output Type | Rail-to-Rail Output |
| Amplifier Type | CMOS Operational Amplifier |
| Automotive Qualification | AEC-Q100 (Q1) |
| Operating Temperature | -40C to +125C |
| Package | 14-TSSOP (PW) |
| Mounting Type | Surface Mount |
| Slew Rate | [DATA_NEEDED: slew rate] |
| Input Bias Current | [DATA_NEEDED: input bias current] |
| Quiescent Current (per amplifier) | [DATA_NEEDED: quiescent current] |
| Input Offset Voltage | [DATA_NEEDED: input offset voltage] |
| RoHS Status | Compliant |
| MSL Level | [DATA_NEEDED: MSL level] |
LMV344QIPWRQ1 Pin Configuration
| Pin 1 | OUT1 β Amplifier 1 output (rail-to-rail) |
| Pin 2 | -IN1 β Amplifier 1 inverting input |
| Pin 3 | +IN1 β Amplifier 1 non-inverting input |
| Pin 4 | V+ β Positive supply, 2.7 V to 5.5 V |
| Pin 5 | +IN2 β Amplifier 2 non-inverting input |
| Pin 6 | -IN2 β Amplifier 2 inverting input |
| Pin 7 | OUT2 β Amplifier 2 output |
| Pin 8 | OUT3 β Amplifier 3 output |
| Pin 9 | -IN3 β Amplifier 3 inverting input |
| Pin 10 | +IN3 β Amplifier 3 non-inverting input |
| Pin 11 | GND β Ground / negative rail |
| Pin 12 | +IN4 β Amplifier 4 non-inverting input |
| Pin 13 | -IN4 β Amplifier 4 inverting input |
| Pin 14 | OUT4 β Amplifier 4 output |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
LMV344QIPWRQ1 is suitable for 6 applications: Automotive Sensor Signal Conditioning, Battery Current and Voltage Monitoring, ADC Input Buffering and Driving, LED Indicator and Backlight Drivers, Audio Buffering in Instrument Clusters, Industrial Analog Signal Chains.
Automotive Sensor Signal Conditioning
The LMV344QIPWRQ1's AEC-Q100 qualification, -40C to +125C rating, and rail-to-rail output make it a natural front end for automotive resistive and voltage-output sensors such as position, level, and pressure sensors. The 2.7 V to 5.5 V supply range matches 3.3 V and 5 V module rails, while the 75 mA output current allows it to drive ADC inputs or downstream filters directly without an extra buffer stage. Each of the four amplifiers can amplify and offset-shift one sensor channel, saving board space in body-control modules.
Recommended
Battery Current and Voltage Monitoring
In 12 V battery-management front ends, the LMV344QIPWRQ1 amplifies shunt-resistor voltages and scales battery-divider voltages into ADC range. The rail-to-rail output maximizes resolution on 3.3 V rails, and the 75 mA drive capability settles large switched-capacitor ADC inputs quickly between conversions. Its AEC-Q100 qualification supports under-hood-adjacent modules, while the low-voltage CMOS input draws negligible bias current that would otherwise corrupt high-impedance shunt measurements.
Recommended
ADC Input Buffering and Driving
SAR and delta-sigma ADCs present dynamic, switched-capacitor input loads that demand amplifiers with strong drive and fast settling. The LMV344QIPWRQ1's 75 mA output current and 1 MHz gain-bandwidth let it charge ADC sample capacitors within acquisition windows, while the rail-to-rail output preserves full-scale codes on low-voltage supplies. A series isolation resistor of 10-50 ohm is recommended for large input capacitance to maintain phase margin, per standard TI amplifier-stability practice.
Recommended
LED Indicator and Backlight Drivers
The 75 mA per-channel output current allows the LMV344QIPWRQ1 to source or sink LED indicator and small-panel backlight currents directly, eliminating external driver transistors for currents under the op-amp limit. Configured with a sense resistor, each channel becomes a simple linear current regulator; the rail-to-rail output enables control near the supply rails for low-voltage LED strings. This suits interior ambient lighting and instrument-panel indicators in automotive and industrial equipment.
Recommended
Audio Buffering in Instrument Clusters
Chime, alert-tone, and low-power speaker signals in instrument clusters benefit from the LMV344QIPWRQ1's rail-to-rail output and 75 mA drive, which let the amplifier deliver meaningful voltage swing into 32-ohm and higher loads from a 5 V rail. The quad package supports stereo or multi-channel paths plus gain stages in one footprint, and AEC-Q100 qualification covers the cluster's temperature environment. Note that 1 MHz gain-bandwidth limits use to audio-band (20 Hz-20 kHz) applications.
Recommended
Industrial Analog Signal Chains
Beyond automotive, the LMV344QIPWRQ1 serves industrial PLC I/O cards, transducer interfaces, and 4-20 mA loop transmitters where the rail-to-rail output and 75 mA drive support loop and actuator requirements on 3.3 V or 5 V rails. Its low-voltage CMOS operation reduces quiescent power in multi-channel cards, and the quad configuration halves board area versus single-channel amplifiers. The 125C rating also covers high-temperature industrial enclosures and motor-control cabinets.
Recommended
Recommended Products Summary
Engineering reference data for LMV344QIPWRQ1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LMV344IPWRQ1 | LMV344IPWR | MC33204DR2 |
|---|---|---|---|---|
| Package | 14-TSSOP (PW) | 14-TSSOP (PW) - same | 14-TSSOP (PW) - same | 14-TSSOP - same footprint |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | onsemi |
| Channels | 4 | 4 | 4 | 4 |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.2 V to 9 V |
| Gain-Bandwidth | 1 MHz | 1 MHz | 1 MHz | 2.2 MHz |
| Output Current | 75 mA | 75 mA | 75 mA | [DATA_NEEDED] |
| AEC-Q100 | Qualified (Q1) | Qualified (Q1) | Not qualified | Qualified (per onsemi) |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| Price (1 pc, approx.) | $0.72 as of 2026-08-29 | $0.72 | $0.50 | [DATA_NEEDED] |
Key Differentiators
- 75 mA high output current in a quad package (vs LMV324-Q1 family)
- Automotive AEC-Q100 qualification with PPAP support (vs LMV344IPWR)
- Trade-off: input common-mode not rail-to-rail (vs MC33204DR2)
Design Notes
With 75 mA drive capability, check power dissipation: P = (V+ - VOUT) * IOUT per loaded channel. The 14-TSSOP (PW) package has limited thermal relief; at 5 V driving 75 mA continuously, dissipation approaches 200 mW/channel, raising junction temperature noticeably above ambient. Derive worst-case TJ using datasheet theta-JA and keep margin below 150C for reliability in automotive modules.
When driving capacitive loads such as long cables or ADC sample capacitors, add a 10-50 ohm series isolation resistor at the output to preserve phase margin; the 75 mA drive stage can otherwise ring or oscillate with large capacitive loads. Keep feedback paths short and place gain-setting resistors close to the -IN pins to limit stray capacitance at 1 MHz bandwidth.
Do not confuse the commercial LMV344IPWR with the -Q1 part in automotive BOMs - qualification and traceability requirements demand the Q1 suffix. Also note the LMV344 is rail-to-rail OUTPUT only; inputs are not rail-to-rail, so ensure input common-mode stays within the datasheet range, especially near the positive rail, to avoid output phase inversion or degraded accuracy.
Compliance Information
Q1 suffix denotes AEC-Q100 automotive qualification per TI product page. RoHS/lead-free status per standard TI automotive product offering; detailed REACH/halogen data should be confirmed on ti.com product pages.
