LMV324IDR Quad Low-Voltage Operational Amplifier Overview
The LMV324IDR from Texas Instruments is a high-performance quad operational amplifier (op-amp) engineered for low-voltage, multi-channel signal processing. Part of TI??s LMV series, it integrates four independent op-amps in a compact SOIC-14 package, offering low power consumption, a wide supply range, and reliable operation??making it ideal for IoT devices, home appliances, and consumer electronics. Its ability to process multiple signals efficiently at 1.8V?C5.5V while maintaining stability has made it a staple in modern, energy-sensitive designs. Fabricante de CI oferece este componente essencial como parte da sua carteira de semicondutores analógicos de confiança.
LMV324IDR Technical Parameters
| Parâmetro | Valor | Unidade |
|---|---|---|
| Função | Quad General-Purpose Operational Amplifier | |
| Gama de tensão de alimentação | 1,8 a 5,5 | V (alimentação única) |
| Total Quiescent Current (all four amplifiers) | 1.0 | mA (typical, at 3V) |
| Gain Bandwidth Product (per amplifier) | 1.0 | MHz (típico) |
| Tipo de embalagem | SOIC-14 (Small Outline Integrated Circuit, 14-pin) | |
| Gama de temperaturas de funcionamento | -40 a +125 | ??C |
Principais caraterísticas funcionais
| Caraterística | Especificação |
|---|---|
| Input Offset Voltage (per amplifier) | 5.0 mV (maximum, at 3V) |
| Input Bias Current (per amplifier) | 1,0 pA (máximo, a 25 ºC) |
| Rácio de rejeição de modo comum (CMRR) | 60 dB (minimum) |
| Slew Rate (per amplifier) | 0.6 V/??s (typical) |
| Corrente de saída (por amplificador) | 20 mA (mínimo, em carga de 500??) |
Vantagens em relação a soluções de amplificação alternativas
The LMV324IDR outperforms arrays of single op-amps and higher-voltage alternatives, starting with its integrated quad design. By combining four op-amps in one SOIC-14 package, it reduces PCB space by 40% compared to using four discrete units??critical for compact devices like smart home sensor hubs and portable electronics. “We cut component count by 75% in our multi-sensor weather stations by switching to this quad op-amp,” notes a senior engineer at a leading IoT device manufacturer.
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With 1mA total quiescent current (0.25mA per channel), it consumes 50% less power than general-purpose quad op-amps (2mA+), extending battery life in wireless sensors by up to 35%. Its 1.8V?C5.5V supply range eliminates the need for voltage regulators in 3V coin-cell devices and 5V USB gadgets, simplifying power design and reducing BOM costs.
Unlike specialized op-amps requiring external compensation components, the LMV324IDR is unity-gain stable, making it ideal for cost-sensitive projects. Its -40??C to +125??C temperature range also ensures reliability in harsh environments??from freezing garages to hot kitchen appliances??outperforming commercial-grade op-amps limited to 0??C?C70??C.
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Typical Applications of LMV324IDR
The LMV324IDR excels in low-voltage, multi-channel systems. Key use cases include:
- Internet of Things (IoT) (wireless sensor nodes, environmental monitoring hubs, smart meter signal processing)
- Home Appliances (smart thermostats, compact washing machine controllers, microwave oven circuits)
- Consumer Electronics (wearable fitness trackers, portable media players, battery-powered gadgets)
- Industrial Automation (low-power PLCs, miniaturized sensor arrays, battery-backed controllers)
- Medical Devices (portable blood glucose monitors, low-power patient vital sign trackers)
Texas Instruments?? Experiência em Design Analógico
As a Texas Instruments product, the LMV324IDR leverages TI??s 80+ years of leadership in analog semiconductors. TI??s low-voltage op-amps undergo rigorous testing??including power consumption analysis across voltage ranges and temperature extremes??to ensure consistent performance in battery-powered systems. This commitment to efficiency has made TI a trusted partner for brands like Whirlpool, Fitbit, and Samsung, who rely on components like the LMV324IDR for their consumer and IoT devices.
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Perguntas frequentes (FAQ)
What is a quad operational amplifier, and how does the LMV324IDR work?
A quad op-amp integrates four independent amplifiers in one package, enabling simultaneous processing of four analog signals. The LMV324IDR amplifies weak signals from multiple sensors (e.g., temperature, humidity, motion) to levels readable by microcontrollers. Each amplifier can be configured for tasks like voltage amplification or filtering, making it ideal for multi-sensor systems in smart homes and IoT devices.
Why is the 1.8V?C5.5V supply range important for battery-powered devices?
This range matches common low-voltage power sources: 1.8V (discharged Li-ion batteries), 3V (coin cells), 3.3V (typical microcontroller voltage), and 5V (USB). Unlike op-amps requiring 3V+, it operates reliably as batteries drain, avoiding sudden shutdowns. This flexibility eliminates voltage boost circuits, reducing power loss and component count in portable devices like wireless sensors.
How does the SOIC-14 package benefit compact designs?
The SOIC-14??s compact footprint (8.6mm??3.9mm) fits into space-constrained PCBs, such as those in smart home sensors and portable electronics. Its surface-mount design supports automated assembly, critical for high-volume production, while its 14-pin layout consolidates four op-amps into one component??saving space and simplifying routing compared to discrete units.
How does the LMV324IDR??s low power consumption extend battery life?
With 1mA total quiescent current (0.25mA per amplifier), it uses 50% less idle power than standard quad op-amps (2mA+). In battery-powered devices like IoT sensors (which spend most time idle), this reduces energy waste. For example, a wireless environmental sensor using this op-amp can operate for 12 months on a coin cell, compared to 8 months with a higher-power alternative.
Is the LMV324IDR suitable for home appliances like smart thermostats?
Yes. Its low power consumption (1mA) and compact SOIC-14 package fit into thermostat PCBs. The -40??C to +125??C temperature range withstands indoor and outdoor temperature variations, while its ability to process multiple sensor signals (e.g., room temp, humidity) simplifies design. Unity-gain stability also eliminates external components, lowering costs for high-volume appliance production.