LMV344IPWR - Quad 1MHz Rail-to-Rail CMOS Op Amp | TI
MPN: LMV344IPWR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.49 | $0.49 |
| 10 | $0.44 | $4.40 |
| 100 | $0.39 | $39.00 |
| 500 | $0.35 | $175.00 |
| 1,000 | $0.31 | $310.00 |
Drop-in alternatives for LMV344IPWR 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:
LMV344IPWRE4
β Drop-Inπ Reference alternative (not in catalog)
LMV344IPWRQ1
β Drop-Inπ Reference alternative (not in catalog)
LMV324IPT
β Drop-Inπ Reference alternative (not in catalog)
LMV358IPWR
β Drop-Inπ Reference alternative (not in catalog)
LMV344IPWR Maximum Ratings & Electrical Characteristics
| Number of Channels | 4 |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Gain Bandwidth Product | 1 MHz |
| Slew Rate | 1 V/Β΅s |
| Input Bias Current | 1 pA (typical) |
| Input Offset Voltage | 0.25 mV (typical) |
| Output Current | 75 mA (typical) |
| Supply Current per Amplifier | 100 Β΅A (typical) |
| Rail-to-Rail Output | Yes |
| Shutdown | Yes |
| Operating Temperature Range | -40Β°C to +125Β°C |
| Package | 14-TSSOP (PW) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Amplifier Type | CMOS |
LMV344IPWR Pin Configuration
| Pin 1 | 1OUT β Output of amplifier 1 |
| Pin 2 | 1IN- β Inverting input of amplifier 1 |
| Pin 3 | 1IN+ β Non-inverting input of amplifier 1 |
| Pin 4 | V+ β Positive supply |
| Pin 5 | 2IN+ β Non-inverting input of amplifier 2 |
| Pin 6 | 2IN- β Inverting input of amplifier 2 |
| Pin 7 | 2OUT β Output of amplifier 2 |
| Pin 8 | 3OUT β Output of amplifier 3 |
| Pin 9 | 3IN- β Inverting input of amplifier 3 |
| Pin 10 | 3IN+ β Non-inverting input of amplifier 3 |
| Pin 11 | V- β Negative supply (ground in single-supply) |
| Pin 12 | 4IN+ β Non-inverting input of amplifier 4 |
| Pin 13 | 4IN- β Inverting input of amplifier 4 |
| Pin 14 | 4OUT β Output of amplifier 4 |
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
LMV344IPWR is suitable for 6 applications: Battery-Powered Instrumentation, Sensor Signal Conditioning, Portable Medical Devices, Active Filters, Audio Signal Processing, Industrial Control Systems.
Battery-Powered Instrumentation
The LMV344IPWR's low supply current (100Β΅A per amp) and shutdown mode make it ideal for portable instruments. Its rail-to-rail output maximizes dynamic range in 3V systems, while the 1MHz bandwidth is sufficient for sensor conditioning. The shutdown pin allows power gating to extend battery life in handheld meters and data loggers.
Recommended
Sensor Signal Conditioning
With an input bias current of 1pA, the LMV344IPWR is perfect for conditioning high-impedance sensors like pH probes, photodiodes, and piezoelectric sensors. The low offset voltage (0.25mV) ensures accurate amplification of small signals. The rail-to-rail output allows direct interface to ADCs without additional level shifting.
Recommended
Portable Medical Devices
The LMV344IPWR operates from 2.7V to 5.5V, making it suitable for battery-powered medical devices like glucose monitors and pulse oximeters. Its low power consumption and shutdown feature help extend battery life. The high output current (75mA) can drive small actuators or LEDs directly.
Recommended
Active Filters
The 1MHz gain bandwidth product of the LMV344IPWR is suitable for active filters in audio and low-frequency applications. The rail-to-rail output allows filters to operate with full swing in single-supply designs. The low input bias current minimizes errors in high-impedance filter networks.
Recommended
Audio Signal Processing
The LMV344IPWR can be used in audio applications such as headphone amplifiers and preamplifiers. Its 1MHz bandwidth covers the audio range, and the 75mA output current can drive headphones directly. The low distortion and noise characteristics make it suitable for consumer audio devices.
Recommended
Industrial Control Systems
With an operating temperature range of -40Β°C to +125Β°C, the LMV344IPWR is suitable for industrial control applications. It can be used for signal conditioning in process control, motor control, and automation. The shutdown feature allows power saving in standby modes.
Recommended
Recommended Products Summary
Engineering reference data for LMV344IPWR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LMV344IPWRE4 | LMV344IPWRQ1 | LMV344IDR | LMV324IPT |
|---|---|---|---|---|---|
| Package | 14-TSSOP (PW) | 14-TSSOP (PW) | 14-TSSOP (PW) | 14-SOIC (D) | 14-TSSOP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | STMicroelectronics |
| Number of Channels | 4 | 4 | 4 | 4 | 4 |
| Supply Voltage Range | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V |
| Gain Bandwidth Product | 1 MHz | 1 MHz | 1 MHz | 1 MHz | 1 MHz |
| Input Bias Current | 1 pA | 1 pA | 1 pA | 1 pA | 10 pA (typical) |
| Shutdown | Yes | Yes | Yes | Yes | No |
| Automotive Grade | No | No | Yes (AEC-Q100) | No | No |
Key Differentiators
- Ultra-low input bias current of 1pA (vs LMV324IPT)
- Integrated shutdown feature (vs LMV324IPT)
- Automotive grade option available (vs LMV344IPWRQ1)
Design Notes
The LMV344IPWR operates from 2.7V to 5.5V. For optimal performance, place a 0.1Β΅F ceramic capacitor close to each supply pin (V+ and V-) to decouple high-frequency noise. In single-supply applications, connect V- to ground and ensure the input common-mode range is not exceeded.
For high-impedance inputs, minimize trace length and use guard rings around the input pins to reduce leakage currents. The TSSOP-14 package has a thermal pad (exposed pad) that should be soldered to a ground plane for improved thermal performance, though power dissipation is typically low.
Do not exceed the absolute maximum supply voltage of 5.5V. The shutdown pin is active-high; tie it to V+ for normal operation or to ground to disable the amplifier. Ensure the input voltage does not exceed the supply rails to avoid latch-up.
Compliance Information
RoHS compliant per TI product page. AEC-Q100 qualified variant available as LMV344IPWRQ1.
