LMV358IDT - Dual Low-Power Op Amp | STMicroelectronics
N.º de pieza: LMV358IDT ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $0.32 | $0,32 |
| 10 | $0.25 | $2,50 |
| 100 | $0.18 | $18,00 |
| 500 | $0.15 | $75,00 |
| 1.000 | $0.13 | $130,00 |
LMV358IDT Descripción general
An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output. It is a fundamental building block in analog electronics, used in signal conditioning, filtering, and amplification tasks. The LMV358IDT belongs to the low-power op amp category, which prioritizes minimal power consumption for battery-operated devices. In the hierarchy of analog components, it sits under linear ICs, which are part of the broader integrated circuits family.
Key features of the LMV358IDT include a low supply current of 210 µA per channel, a wide supply voltage range of 2.7V to 5.5V, and a rail-to-rail output stage that swings within 10 mV of the supply rails. The input common-mode voltage range extends to ground, allowing single-supply operation. The device also features a gain bandwidth product of 1.3 MHz and a slew rate of 0.45 V/µs, sufficient for audio and sensor signal conditioning.
The LMV358IDT uses a bipolar technology with a class-AB output stage, providing low crossover distortion. The input stage is a PNP transistor pair, enabling the input common-mode range to include ground. The output stage can source and sink current, with a short-circuit current of 160 mA. The device is internally frequency compensated for unity-gain stability, simplifying design.
Typical applications include battery-powered instrumentation, portable medical devices, sensor signal conditioning, and active filters. The low quiescent current extends battery life, while the rail-to-rail output maximizes dynamic range in single-supply systems. The wide supply range also allows operation from 3.3V or 5V logic rails.
When designing with the LMV358IDT, ensure proper decoupling with a 0.1 µF capacitor close to the supply pin. The input common-mode range includes ground, but for best performance, keep inputs within the specified range. The output can drive capacitive loads up to 100 pF without oscillation, but larger loads may require a series resistor.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the STMicroelectronics datasheet, providing a comprehensive resource for engineers.
Alternativas directas para LMV358IDT — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
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LMV358ID
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LMV358IDT Valores máximos y características eléctricas
| Number of Channels | 2 |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Quiescent Current per Channel | 210 µA |
| Gain Bandwidth Product | 1.3 MHz |
| Slew Rate | 0.45 V/µs |
| Input Offset Voltage | 1 mV (max) |
| Input Bias Current | 250 nA (max) |
| Input Common-Mode Voltage Range | 0 V to VCC - 1.1 V |
| Tipo de salida | Rail-to-Rail |
| Output Current | 160 mA (short-circuit) |
| Rango de temperatura de funcionamiento | -40°C to +125°C |
| Encapsulado | SOIC-8 |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
| Nivel MSL | 1 |
Configuración de pines de LMV358IDT
| Pin 1 | OUT1 — Output of amplifier 1 |
| Pin 2 | IN1- — Inverting input of amplifier 1 |
| Pin 3 | IN1+ — Non-inverting input of amplifier 1 |
| Pin 4 | VCC- — Negative supply (ground in single-supply) |
| Pin 5 | IN2+ — Non-inverting input of amplifier 2 |
| Pin 6 | IN2- — Inverting input of amplifier 2 |
| Pin 7 | OUT2 — Output of amplifier 2 |
| Pin 8 | VCC+ — Positive supply |
Aplicaciones típicas
LMV358IDT es adecuado para 6 aplicacións: Battery-Powered Instrumentation, Portable Medical Devices, Sensor Signal Conditioning, Active Filters, Audio Signal Processing, Industrial Control Systems.
Battery-Powered Instrumentation
The LMV358IDT's low quiescent current of 210 µA per channel extends battery life in portable instruments. Its wide supply range of 2.7V to 5.5V allows operation from a single lithium-ion cell or two alkaline cells. The rail-to-rail output maximizes dynamic range, ensuring accurate signal measurement. In a typical pH meter, the op amp buffers the high-impedance electrode signal, and the low power consumption allows continuous operation for months. The input common-mode range includes ground, simplifying single-supply designs. The device's 1.3 MHz gain bandwidth product is sufficient for DC and low-frequency signals. The SOIC-8 package is compact, saving board space in handheld devices. The operating temperature range of -40°C to +125°C ensures reliable operation in field conditions. The low offset voltage of 1 mV maintains measurement accuracy. The device's robustness against electrostatic discharge (ESD) protects against handling damage. Overall, the LMV358IDT is an excellent choice for battery-powered instrumentation where power efficiency and accuracy are paramount.
Recomendado
Portable Medical Devices
In portable medical devices like glucose meters and pulse oximeters, the LMV358IDT provides low-power signal conditioning. Its 210 µA quiescent current is critical for battery-operated devices that must last for weeks. The rail-to-rail output allows the op amp to drive the ADC input to full scale, improving measurement resolution. The input common-mode range includes ground, enabling direct connection to sensors that output ground-referenced signals. The device's low offset voltage ensures accurate readings. The wide supply range accommodates various battery chemistries. The SOIC-8 package is suitable for compact PCB designs. The operating temperature range covers clinical environments. The device's low noise performance, though not specified in the datasheet, is adequate for medical sensing applications. The LMV358IDT's reliability and long-term stability make it suitable for medical devices that require consistent performance. The low power consumption also reduces heat generation, which is important in wearable devices. Overall, the LMV358IDT is a reliable choice for portable medical electronics.
Recomendado
Sensor Signal Conditioning
The LMV358IDT is ideal for conditioning signals from various sensors, including temperature, pressure, and light sensors. Its low input bias current of 250 nA minimizes loading on high-impedance sensors. The rail-to-rail output allows the conditioned signal to utilize the full ADC input range. The wide supply voltage range of 2.7V to 5.5V is compatible with common microcontroller supply rails. The gain bandwidth product of 1.3 MHz is sufficient for most sensor signals, which are typically below 100 kHz. The device's low quiescent current is beneficial in sensor nodes that are always on. The input common-mode range includes ground, allowing direct connection to ground-referenced sensors. The SOIC-8 package is easy to integrate into sensor modules. The operating temperature range of -40°C to +125°C suits industrial sensors. The low offset voltage ensures accurate signal amplification. The device's stability with capacitive loads up to 100 pF is important when driving ADC inputs. Overall, the LMV358IDT provides a cost-effective solution for sensor signal conditioning.
Recomendado
Active Filters
The LMV358IDT can be used to implement active filters such as low-pass, high-pass, and band-pass filters. Its gain bandwidth product of 1.3 MHz allows filter cutoff frequencies up to a few hundred kilohertz. The rail-to-rail output ensures the filter can drive subsequent stages without clipping. The low quiescent current is advantageous in multi-stage filters where multiple op amps are used. The wide supply voltage range allows the filter to operate from a single 3.3V or 5V supply. The input common-mode range includes ground, simplifying filter design for single-supply operation. The device's low offset voltage reduces DC errors in the filter output. The SOIC-8 package is suitable for compact filter circuits. The operating temperature range covers most applications. The device's stability with capacitive loads is important when the filter drives a capacitive load. The LMV358IDT's low power consumption makes it suitable for battery-powered audio filters. Overall, the LMV358IDT is a versatile choice for active filter designs.
Recomendado
Audio Signal Processing
The LMV358IDT can be used in audio applications such as headphone amplifiers, microphone preamplifiers, and tone control circuits. Its low quiescent current is beneficial in portable audio devices. The rail-to-rail output maximizes the audio signal swing, improving dynamic range. The gain bandwidth product of 1.3 MHz is sufficient for audio frequencies up to 20 kHz. The slew rate of 0.45 V/µs is adequate for audio signals. The device's low distortion, though not specified, is acceptable for consumer audio. The wide supply voltage range allows operation from a single lithium-ion battery. The input common-mode range includes ground, simplifying single-supply audio designs. The SOIC-8 package is compact for portable audio devices. The operating temperature range covers consumer electronics. The device's low noise performance is suitable for audio applications. The LMV358IDT's low power consumption extends battery life in portable audio players. Overall, the LMV358IDT is a cost-effective solution for basic audio signal processing.
Recomendado
Industrial Control Systems
The LMV358IDT is used in industrial control systems for signal conditioning, current sensing, and motor control feedback. Its wide supply voltage range of 2.7V to 5.5V is compatible with industrial logic levels. The operating temperature range of -40°C to +125°C suits harsh industrial environments. The low quiescent current reduces power dissipation in control panels. The rail-to-rail output allows the op amp to interface with ADCs and microcontrollers. The input common-mode range includes ground, enabling direct connection to ground-referenced sensors. The device's low offset voltage ensures accurate control signals. The gain bandwidth product of 1.3 MHz is sufficient for control loop frequencies. The SOIC-8 package is easy to integrate into industrial PCBs. The device's robustness against ESD and latch-up ensures reliability in industrial settings. The LMV358IDT's low power consumption is beneficial in remote industrial sensors. Overall, the LMV358IDT is a reliable choice for industrial control applications.
Recomendado
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Comparación con alternativas
| Parámetro | Este producto | LMV358ID | LMV358IDT | LMV358IDT |
|---|---|---|---|---|
| Package | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 |
| Supply Voltage Range | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V |
| Quiescent Current per Channel | 210 µA | 210 µA | 210 µA | 210 µA |
| Gain Bandwidth Product | 1.3 MHz | 1.3 MHz | 1.3 MHz | 1.3 MHz |
| Slew Rate | 0.45 V/µs | 0.45 V/µs | 0.45 V/µs | 0.45 V/µs |
| Input Offset Voltage | 1 mV (max) | 1 mV (max) | 1 mV (max) | 1 mV (max) |
| Output Type | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
Diferenciadores clave
- Low quiescent current of 210 µA per channel (frente a LM358)
- Wide supply voltage range of 2.7V to 5.5V (frente a LM358)
- Rail-to-rail output (frente a LM358)
Notas de diseño
The LMV358IDT operates from 2.7V to 5.5V. Use a 0.1 µF ceramic capacitor close to the VCC+ pin and a 10 µF electrolytic capacitor for bulk decoupling. Ensure the supply voltage does not exceed 5.5V to avoid damage.
Place the decoupling capacitor as close as possible to the VCC+ pin. Keep the feedback network components close to the inverting input to minimize parasitic capacitance. Use a ground plane to reduce noise.
Do not exceed the input common-mode voltage range (0V to VCC-1.1V). The output can drive capacitive loads up to 100 pF; for larger loads, add a series resistor to maintain stability. Avoid operating with inputs beyond the supply rails.
Información de cumplimiento
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified; automotive variant may be available.
