LM358DRG3 - Dual 36V Low-Power Op Amp | Texas Instruments
N.º de pieza: LM358DRG3 ✓ ActivoLM358DRG3 Descripción general
An operational amplifier is a high-gain analog building block used to amplify voltage differences, buffer inputs, implement filters, and drive control networks. The LM358 belongs to the broader hierarchy of dual operational amplifiers, analog amplifiers, signal-conditioning ICs, and power-management-support semiconductors. Its two channels can amplify separate signals or work together in differential, instrumentation, comparator, and feedback-control circuits.
The LM358B family provides a wide 3 V to 36 V supply range, while the LM358 family covered by the manufacturer product page is commonly used in both single-supply and dual-supply systems. The common-mode input range includes ground, allowing signals close to the lower supply rail to be sensed directly. Low quiescent current of approximately 300 uA per channel also benefits battery-operated and distributed sensing systems where standby power matters.
The 1.2 MHz unity-gain bandwidth provides adequate bandwidth for general-purpose closed-loop signal amplification, active filtering, and control applications. Each channel includes internal bias compensation, allowing operation without external nulling components. The dual-channel architecture reduces board area when two amplifier functions are required, while the SOIC-8 package supports conventional surface-mount assembly and automated inspection.
Typical uses include transducer signal conditioning, temperature-sensor interfaces, low-side current measurement, audio preamplification, active filters, comparators with added hysteresis, and industrial control loops. Because the common-mode input range includes ground, the device is especially useful for signals generated by sensors whose output approaches the negative supply rail. Supply bypass capacitors should be placed close to the power pins to control noise and maintain stable operation.
The principal design trade-off is bandwidth versus supply flexibility. The LM358 family supports higher supply voltages than many modern low-voltage rail-to-rail amplifiers, but its 1.2 MHz bandwidth is not intended for high-speed signal chains. Designers should also preserve input and output voltage limits and provide stable reference points for single-supply operation.
This page combines manufacturer specifications, sourcing guidance, drop-in alternatives, package considerations, and application-oriented design notes to help engineers evaluate the LM358DRG3 before integrating it into a new analog circuit.
Alternativas directas para LM358DRG3 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con LM358DRG3 (mismo factor de forma y huella) — difiere en Package, Amplifier Type, Gain-Bandwidth Product, Number of Circuits, Slew Rate.
LM358ADR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
LM358DR
✅ Sustitución directaConsulte el precio
Ver hoja de datos →LM2904PW
✅ Sustitución directaConsulte el precio
Ver hoja de datos →LM201AD
✅ Sustitución directa ⚠️ Especificaciones sin verificarConsulte el precio
Ver hoja de datos →TLV2462ID
✅ Sustitución directa ⚠️ Especificaciones sin verificarConsulte el precio
Ver hoja de datos →LM358DRG3 Valores máximos y características eléctricas
| Product Type | Dual operational amplifier |
| Number of Amplifier Channels | 2 circuits |
| Supply Voltage Range | 3 V to 36 V |
| Corriente en reposo | 300 uA per channel |
| Unity-Gain Bandwidth | 1.2 MHz |
| Common-Mode Input Range | Includes ground |
| Encapsulado | 8-pin SOIC |
| Tipo de montaje | Surface mount |
Guía de configuración de pines de LM358DRG3 8-pin soic
Configuración de pines para LM358DRG3 (encapsulado 8-pin soic). Este componente analógico presenta pines de entrada, salida y alimentación. Consulte la hoja de datos del fabricante para conocer las configuraciones de los pines de ajuste de offset, compensación y habilitación. Ideal para circuitos de acondicionamiento de señal y amplificadores.
No hay datos detallados de patillaje disponibles para LM358DRG3.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
LM358DRG3 es adecuado para 6 aplicacións: Industrial Sensor Signal Conditioning, Low-Side Current Measurement, Temperature and Pressure Transducer Interface, Audio Preamplification, Active Filtering and Control Loops, Battery-Powered Monitoring Equipment.
Industrial Sensor Signal Conditioning
The LM358DRG3 fits industrial sensor interfaces because its 3 V to 36 V supply range accommodates widely distributed industrial rails, while the common-mode input range includes ground for sensors operating near 0 V. Two channels can amplify a sensor signal and buffer a reference or feedback path. The approximately 300 uA per-channel quiescent current supports low-power sensing nodes, although the 1.2 MHz unity-gain bandwidth is intended for slow process and instrumentation signals rather than high-speed data acquisition. Place bypass capacitors near the supply pins and maintain the input common-mode and output swing limits when defining the analog front end.
Recomendado
Low-Side Current Measurement
The LM358DRG3 is suitable for amplifying the small voltage developed across a low-side current-sense resistor. Its common-mode input capability includes ground, which allows the sense amplifier to operate close to the negative supply rail, and its two channels can provide gain and output buffering. The 1.2 MHz unity-gain bandwidth is more than adequate for many control and telemetry paths, although input offset voltage and bias current directly influence accuracy. Keep the sense-resistor layout compact, route the amplifier inputs away from switching nodes, and use an RC filter when the measured waveform contains high-frequency switching noise.
Recomendado
Temperature and Pressure Transducer Interface
The LM358DRG3 can condition low-level outputs from resistive temperature or pressure sensors in both grounded single-supply systems and dual-supply instrumentation. Because the common-mode range includes ground, a sensor output near 0 V can be amplified without shifting the entire signal into the positive supply range. The 1.2 MHz bandwidth supports closed-loop gains commonly used in transducer interfaces, while low quiescent current benefits remote monitoring. Use the second channel for a reference or guard stage, and verify that sensor excitation, amplifier offset, and resistor tolerances meet the required measurement accuracy.
Recomendado
Audio Preamplification
The LM358DRG3 can provide modest audio preamplification in low-cost signal paths where high rail-to-rail swing and wide bandwidth are not essential. Its dual-channel architecture supports stereo or dual-mono layouts, and the common-mode input range including ground suits single-supply mixer stages biased above ground. The 1.2 MHz unity-gain bandwidth accommodates voice-band and limited full-range audio amplification, but output swing and distortion should be checked at the lowest supply voltage. Place input and feedback resistors close to their pins and decouple the supply to reduce channel-to-channel noise coupling.
Recomendado
Active Filtering and Control Loops
The LM358DRG3 is well suited to active filters and proportional control loops using external resistors and capacitors. Its 1.2 MHz unity-gain bandwidth allows useful closed-loop bandwidth at moderate gains, while two channels can implement a two-pole filter, an error amplifier, or a PI controller. The wide 3 V to 36 V supply range supports industrial control voltages that exceed common low-voltage amplifier limits. Compensation is internal, but stability still depends on the selected noise gain and load, so evaluate the final feedback network and output load with the intended passive component tolerances.
Recomendado
Battery-Powered Monitoring Equipment
The LM358DRG3 fits portable monitoring equipment because each channel draws approximately 300 uA of quiescent current and the family operates from a 3 V lower supply limit. It can amplify a sensor, generate a buffered reference, and monitor a battery or control point without requiring two separate packages. The common-mode range including ground is valuable in battery systems where sensor signals remain near 0 V. The trade-off is that the 1.2 MHz bandwidth and 3 V minimum supply are appropriate for general monitoring, not ultra-low-voltage wearables or high-speed acquisition. Disable unneeded channels where the selected operating mode permits it to reduce total standby consumption.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para LM358DRG3 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | LM358ADR | LM358DR | LM2904PW | LM201AD | TLV2462ID |
|---|---|---|---|---|---|---|
| Package | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Family | LM358 | LM358 | LM358 | LM2904 | LM201 | TLV2462 |
| Mounting Type | Surface mount | Surface mount | Surface mount | Surface mount | Surface mount | Surface mount |
Diferenciadores clave
- Wide supply-voltage capability (frente a TLV2462ID)
- Low quiescent consumption (frente a LM2904PW)
- Ground-referenced input capability (frente a LM201AD)
- General-purpose bandwidth (frente a TLV2462ID)
Notas de diseño
Place a ceramic bypass capacitor close to each supply pin and connect the ground return directly to the ground pin. The manufacturer describes a 3 V to 36 V supply range, but the usable operating region still depends on output swing, input common-mode limits, thermal conditions, and the exact LM358 grade. Keep the power route narrow, minimize loop area, and decouple branches that switch high current so amplifier inputs do not pick up supply ripple.
Do not assume rail-to-rail input or output behavior merely because the common-mode range includes ground. An input near ground can be sensed, but the output still has a specified swing limit and may not reach the positive supply rail under heavy load. Establish a suitable mid-supply reference for single-supply biasing, and confirm that the selected gain, load, and supply voltage remain inside the electrical limits shown in the manufacturer datasheet.
Keep input, feedback, and output traces short and connect the decoupling capacitor directly to the relevant pins. For low-side current measurement, use a compact Kelvin-style connection to the sense resistor and keep the amplifier input path away from switching nodes. High source impedances can increase offset and noise susceptibility, so use practical resistor values and consider an input RC filter when the source contains high-frequency content.
The 1.2 MHz unity-gain bandwidth is sufficient for many control and sensor paths but does not make the device a high-speed op amp. Check the closed-loop bandwidth at the selected noise gain, verify capacitive-load stability with the intended output network, and add filtering ahead of the amplifier if high-frequency components can alias or modulate the signal. Feedback-component placement is important because long traces can create parasitic coupling and unstable behavior.
Información de cumplimiento
The manufacturer product page should be used to confirm the current lead-free, RoHS, REACH, and material-compliance declarations for the exact ordering code.