LM358ADRE4 - Dual 700 kHz Op Amp in 8-SOIC | Texas Instruments
Référence : LM358ADRE4 ✓ ActifLM358ADRE4 Présentation
An operational amplifier is a voltage-feedback amplifier that uses high open-loop gain to amplify the difference between its inverting and non-inverting inputs. Negative feedback defines the closed-loop gain and bandwidth, allowing one amplifier section to perform sensing, buffering, amplification, filtering, or signal-conditioning functions. A dual operational amplifier combines two amplifier channels in one package, reducing board area and simplifying power distribution in analog front ends.
The LM358 family is widely used for general-purpose analog signal conditioning because each channel combines a 700 kHz gain-bandwidth product with single-supply or split-supply operation. The 8-SOIC arrangement provides separate inputs and outputs for both channels, along with common power and ground pins. This makes the LM358ADRE4 appropriate for industrial control, sensor interfaces, audio paths, and low-to-moderate-frequency conditioning circuits.
The two independent channels can be configured as inverting amplifiers, non-inverting amplifiers, comparators, buffers, or transimpedance stages when suitable feedback and biasing networks are used. Designers should select resistor and capacitor values to meet the required signal bandwidth, gain, input impedance, output loading, and stability objectives. The device is a general-purpose solution rather than a rail-to-rail precision amplifier, so input common-mode range, output swing, offset voltage, and noise should be checked against the actual supply and signal levels.
Typical applications include conditioning outputs from resistive sensors, buffering analog-to-digital converter inputs, amplifying low-level audio signals, and implementing active filters. In each case, maintaining adequate supply headroom and checking output-drive capability are important because the input and output operating ranges are not identical to the total supply rating.
A practical PCB layout should place input, output, feedback, and compensation components close to the associated amplifier pins. Decoupling capacitors should be connected directly between the supply and ground pins, while long analog traces should be kept away from switching nodes and high-current return paths. The SOIC package is suitable for conventional reflow assembly and automated inspection.
This product reference combines the exact ordering information for LM358ADRE4 with practical guidance on amplifier configuration, application fit, PCB implementation, and drop-in comparison. It also highlights which technical details should be confirmed in the manufacturer datasheet before release to production.
Alternatives de remplacement direct pour LM358ADRE4 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec LM358ADRE4 (même facteur de forme et même empreinte) — différant par Gain-Bandwidth Product, Mounting Type, Package.
LM358ADR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LM358BIDR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LM358MX/NOPB
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LM2904N
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →RC4558DR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LM358ADRE4 Valeurs maximales et caractéristiques électriques
| Amplifier Type | General Purpose |
| Number of Amplifier Circuits | 2 circuits |
| Number of Channels | 2 channels |
| Gain-Bandwidth Product | 700 kHz |
| Maximum Supply Voltage | 32 V |
| Tension d'alimentation | ±16 V |
| Boîtier | 8-SOIC |
| Package Width | 3.90 mm |
| Package Body Width | 0.154 in |
| Packaging | Tape and Reel |
| Type de montage | Surface Mount |
Configuration des broches de LM358ADRE4
| Broche 1 | OUT1 — Output of amplifier channel 1 |
| Broche 2 | IN1- — Inverting input of amplifier channel 1 |
| Broche 3 | IN1+ — Non-inverting input of amplifier channel 1 |
| Broche 4 | GND — Ground connection |
| Broche 5 | IN2+ — Non-inverting input of amplifier channel 2 |
| Broche 6 | IN2- — Inverting input of amplifier channel 2 |
| Broche 7 | OUT2 — Output of amplifier channel 2 |
| Broche 8 | V+ — Positive supply connection |
Applications typiques
LM358ADRE4 convient pour 6 applications: Industrial Sensor Signal Conditioning, Audio Preamplifier and Mixer, ADC Interface Buffering, Active Filters and Control Loops, Power-Supply Feedback and Monitoring, Comparator and Threshold Circuit.
Industrial Sensor Signal Conditioning
The LM358ADRE4 is appropriate for conditioning low-to-moderate-bandwidth signals from resistive sensors used in industrial control systems. Each of its two 700 kHz channels can provide non-inverting or inverting amplification, while the common input arrangement supports two related sensor channels. A practical implementation places the sensor and feedback network near the amplifier pins and biases the signal within the input common-mode range. Because the device is not a precision or rail-to-rail amplifier, verify offset voltage, input bias current, output swing, and supply limits before using it with high-impedance sources. The 8-SOIC package also simplifies PCB replacement when a board already uses the standard LM358 footprint.
Audio Preamplifier and Mixer
The LM358ADRE4 can serve as a general-purpose audio preamplifier or line-stage building block in single- or dual-supply equipment. Its 700 kHz gain-bandwidth product provides more bandwidth than typical human-audio reproduction requires, while two channels allow stereo amplification or microphone mixing within one 8-SOIC package. Feedback resistors set the closed-loop gain, and input and output coupling capacitors establish AC coupling and low-frequency response. The design must account for the amplifier's input common-mode range, output swing, slew rate, and output-driving capability. For low-level microphone work, input bias current and offset voltage may set the practical noise floor, making a lower-offset amplifier preferable when those errors dominate.
ADC Interface Buffering
The LM358ADRE4 can buffer a sensor or analog front-end output before it reaches an ADC input. Two independent 700 kHz channels allow simultaneous conditioning of two signals, such as a measurement channel and a reference channel, while the 8-SOIC package keeps the analog section compact. Place the amplifier close to the ADC and route the buffered output away from switching nodes to minimize pickup. Confirm that the input stays within the common-mode range and that the ADC input remains within the amplifier's output swing. If the ADC requires a rail-to-rail input or very low-offset conversion accuracy, a dedicated precision buffer may provide a better system result.
Active Filters and Control Loops
The two channels in the LM358ADRE4 can implement active low-pass, high-pass, or other control-loop stages where a 700 kHz gain-bandwidth product provides adequate loop bandwidth. An RC feedback network determines the nominal response, and both channels can be coordinated for second-order filtering when their tolerances are controlled. Keep the filter components close to the relevant input and output pins to reduce parasitic coupling. Check loop phase margin, output swing, load capacitance, and supply bypass stability using the manufacturer application guidance. The device is best suited to control and audio-frequency functions rather than precision measurement filters requiring very low offset, low noise, or tight resistor-ratio accuracy.
Power-Supply Feedback and Monitoring
The LM358ADRE4 can monitor a divided-down power rail and amplify the difference from a reference for feedback or fault detection. Its dual configuration can handle a power-good signal and a secondary voltage monitor in one package, while operation up to ±16 V provides compatibility with many industrial supply rails after suitable attenuation. The amplifier must remain within its input common-mode range, and the output must not exceed the limits of the monitoring circuit. Feedback-loop designs also require stability analysis because the LM358 is intended for general-purpose rather than precision instrumentation. Place divider and feedback components near the package and keep high-current switching paths away from the sensing node.
Comparator and Threshold Circuit
Each LM358ADRE4 channel can be used as an open-loop comparator for slow threshold detection, although it is intended primarily as a linear operational amplifier. The two channels allow independent overvoltage and undervoltage checks, and the 8-SOIC package provides a compact implementation. Set the threshold with a resistor divider and reference, account for input offset voltage, and ensure the output transition remains within the driven logic's voltage range. Use a device with specified comparator-level behavior when propagation delay, rail-to-rail input range, or hysteresis-free switching is critical. For clean comparator operation, review the manufacturer guidance concerning output saturation and input-stage behavior.
Données de référence d'ingénierie pour LM358ADRE4 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | LM358ADR | LM358BIDR | LM358MX/NOPB | LM2904N | RC4558DR |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | onsemi |
| Package | 8-SOIC | 8-SOIC - same package | 8-SOIC - same package | 8-SOIC - same package | 8-SOIC - same package | 8-SOIC - same package |
| Special Features | General-purpose dual operational amplifier | General-purpose LM358 family member | LM358 family device with grade-specific suffix | LM358 family device with customer or qualification suffix | General-purpose dual operational amplifier family | RC4558 dual operational amplifier family |
Principaux différenciateurs
- Provides two general-purpose channels in one standard 8-SOIC package (vs RC4558DR)
- Supports 700 kHz gain-bandwidth operation for general-purpose analog conditioning (vs LM358BIDR)
- Available in tape-and-reel ordering for automated assembly (vs LM2904N)
Notes de conception
Place the LM358ADRE4 feedback resistors, input compensation components, and bypass capacitors close to their associated pins. Connect the local supply bypass directly between pin 8 and pin 4, and keep the analog input and feedback traces short. According to the manufacturer datasheet, the SOIC footprint is standard, but correct trace routing remains necessary to minimize parasitic feedback and high-frequency pickup.
Keep analog input nodes away from switching nodes, inductors, and high-current return paths because the LM358's input offset and bias currents can amplify leakage-induced errors. For high-impedance sensors, use guarding or a lower-input-bias amplifier when leakage becomes significant. When driving an ADC, place the amplifier close to the ADC input and verify that the output swing and capacitive-load behavior remain within the manufacturer's recommended conditions.
Do not treat the ±16 V supply rating as a guaranteed input or output operating range. On a single supply, bias the signal near mid-rail and verify the common-mode input range and output swing. Also check whether the circuit requires rail-to-rail input, low offset, low noise, or fast slew beyond the general-purpose LM358's capabilities. The 700 kHz gain-bandwidth value must be evaluated together with the intended closed-loop gain.
Place the supply-decoupling capacitor adjacent to the package and provide adequate upstream bulk capacitance for the board's switching and load currents. Estimated: if the dual device draws 1 mA per channel from a 12 V supply, its typical rail dissipation would be approximately 24 mW, although the actual channel current and total supply current must be confirmed in the manufacturer datasheet. Thermal problems are uncommon at this level but remain relevant for sustained operation at elevated ambient temperature.
Informations de conformité
No explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations appear in the product references used for this page. Confirm current compliance declarations with Texas Instruments before production release.
