LM358ADR2G - Dual 1MHz Op Amp, 3-32V | onsemi | SOIC-8
部品番号: LM358ADR2G ✓ 生産中LM358ADR2G 概要
An operational amplifier is a voltage-gain device used to amplify weak sensor signals, buffer inputs, implement active filters, compare voltages, and drive analog circuits. The LM358 belongs to the general-purpose operational-amplifier hierarchy, combining two amplifier channels in one package. Its ground-referenced common-mode capability is especially valuable in single-supply systems, where input signals often remain near the lower supply rail.
Key characteristics include a 1 MHz gain-bandwidth product, 0.6 V/µs slew rate, low power consumption, and common-mode input range extending to ground or VEE. The dual configuration reduces board area and package count when two amplifier channels are required. Commercial-temperature operation and surface-mount packaging make the device suitable for conventional industrial and commercial equipment rather than only low-volume prototyping.
The LM358 series uses established general-purpose amplifier circuitry and is equivalent to one half of an LM324, as described by onsemi. It can operate from a single positive supply or from split bipolar rails, providing flexibility across instrumentation, control, and interface designs. Its 1 MHz bandwidth is sufficient for general-purpose audio, sensor, and feedback-loop applications, although it is not intended for precision or high-speed signal-path work.
Typical uses include low-level sensor amplification, current-loop interfaces, differential voltage measurement, active filtering, threshold detection, and general feedback control. The device is especially appropriate when the signal can approach ground and the system cannot accommodate a rail-to-rail input stage. Because the common-mode range extends to ground or VEE, the amplifier can process signals near the negative rail without requiring a separate mid-supply bias.
When laying out a circuit, place input and feedback components close to the corresponding amplifier pins and maintain short, low-noise routes around high-impedance inputs. Avoid long PCB traces between the source and noninverting input, particularly when sensing microvolt-level signals. Decoupling capacitors should connect to the supply and ground pins with minimal loop area to limit supply-noise coupling into the amplifier.
This product reference combines manufacturer-family characteristics with practical pinout, application, and drop-in replacement guidance. It is structured to help engineers identify the correct onsemi ordering code, understand the 8-pin SOIC footprint, compare pin-compatible devices, and move from device selection into PCB-level implementation without relying on generic LM358 guidance.
ドロップイン代替品: LM358ADR2G — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: LM358ADR2G （同一形状・フットプリント） — 相違点: Amplifier Type, Package, Common-Mode Input Range, Slew Rate.
LM358BIDR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LM358DE4
✅ ドロップイン価格はお問い合わせください
データシートを見る →LM358DR
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →LM358ADR2G 最大定格＆電気的特性
| Amplifier Type | General Purpose |
| Number of Channels | 2 channels |
| Supply Voltage Range | 3 V to 32 V |
| Gain-Bandwidth Product | 1 MHz |
| Slew Rate | 0.6 V/µs |
| Input Common-Mode Range | Extends to ground or VEE |
| Supply Configuration | Single supply or split supply |
| パッケージ | 8-SOIC, 3.90 mm width |
| 実装タイプ | Surface mount |
| Packaging | Tape and reel |
| Temperature Grade | Commercial temperature |
LM358ADR2G ピン構成
| ピン 1 | OUT1 — Channel 1 output |
| ピン 2 | IN1- — Channel 1 inverting input |
| ピン 3 | IN1+ — Channel 1 noninverting input |
| ピン 4 | GND — Ground connection |
| ピン 5 | IN2+ — Channel 2 noninverting input |
| ピン 6 | IN2- — Channel 2 inverting input |
| ピン 7 | OUT2 — Channel 2 output |
| ピン 8 | V+ — Positive supply connection |
主な用途
LM358ADR2G の用途: 6 件s: Low-Level Sensor Signal Conditioning, Current-Loop Interface Amplifier, Active Audio and Communication Filtering, Threshold Detection and Relay Control, Power-Supply Feedback and Monitoring, Industrial Control Loop Amplification.
Low-Level Sensor Signal Conditioning
The LM358ADR2G is well suited to conditioning weak sensor signals in single-supply systems because its input common-mode range extends to ground or VEE. With a 1 MHz gain-bandwidth product, each channel can provide moderate closed-loop gain while preserving a general-purpose signal path, and the 0.6 V/µs slew rate supports noncritical dynamic signals. Use one channel for amplification and the other for filtering or biasing. Keep the sensor and feedback paths compact because high source impedance can make the amplifier susceptible to leakage, thermal effects, and coupled noise.
おすすめ
Current-Loop Interface Amplifier
The LM358ADR2G can serve as the amplifier in a 4-20 mA current-loop interface because it supports split-supply operation and accommodates inputs extending toward VEE. The dual-channel configuration allows one amplifier to process the measurement while the other handles a buffer, filter, or reference path. Its 1 MHz bandwidth is more than adequate for common process-control bandwidths, although the application must account for resistor tolerance, input offset, and protection-network leakage. Use precision resistors and isolate the input from high-impedance leakage paths.
おすすめ
Active Audio and Communication Filtering
The LM358ADR2G can implement first-order active filters or output drivers for low-bandwidth audio and communication interfaces. Its 0.6 V/µs slew rate and 1 MHz gain-bandwidth product allow useful response well beyond basic control-loop requirements, while the dual package provides separate channels for filtering and buffering. Performance at a specific audio frequency depends on the closed-loop gain, load impedance, and output-current limits. Avoid assuming precision audio performance: input offset, distortion, and channel matching should be checked against the actual signal level.
おすすめ
Threshold Detection and Relay Control
The LM358ADR2G is appropriate for comparing a control signal against a reference and driving a relay-driver stage or digital logic input. The common-mode input range extending to ground or VEE simplifies single-supply threshold circuits whose sensed voltage lies near the lower rail. A 1 MHz gain-bandwidth product permits reasonable comparator-like response, although propagation behavior is not characterized as a dedicated comparator. Include hysteresis for noise immunity, verify output-current limits, and use an appropriate transistor or driver for loads beyond the amplifier's direct drive capability.
おすすめ
Power-Supply Feedback and Monitoring
The LM358ADR2G can monitor a power rail in a feedback or supervisory circuit when the voltage of interest is near ground or uses split supplies. Its dual-channel arrangement can compare the rail against a reference on one side and buffer the feedback signal on the other. The amplifier operates across a 3 V to 32 V supply range, but the input and output limits must remain within its electrical characteristics. Account for offset voltage and temperature drift in protection thresholds, and use resistive division when the monitored rail exceeds the input range.
おすすめ
Industrial Control Loop Amplification
The LM358ADR2G can amplify error and feedback signals in industrial control loops where a general-purpose, low-power dual amplifier is sufficient. Two independent channels support error amplification and actuator feedback, reducing board area compared with separate single amplifiers. The 1 MHz gain-bandwidth product and 0.6 V/µs slew rate handle loops well above basic process-control bandwidth, though compensation must account for the amplifier's slew behavior and load. For designs specified across the full industrial temperature range, confirm that the selected onsemi ordering code carries the required qualification.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: LM358ADR2G — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | LM358BIDR | LM358DE4 | LM358DR |
|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same |
| Brand | onsemi | onsemi | onsemi | onsemi |
| Number of Amplifier Channels | 2 channels | 2 channels | 2 channels | 2 channels |
主な差別化要因
- Single-supply input operation extends to the lower rail （vs LM358BIDR)
- General-purpose bandwidth and slew capability （vs LM358DE4)
- Two channels in one compact surface-mount package （vs LM358DR)
設計ノート
Route the two channels according to the datasheet pinout: channel 1 uses OUT1, IN1-, and IN1+ on pins 1-3, while channel 2 uses IN2+, IN2-, and OUT2 on pins 5-7. Keep feedback resistors and compensation components adjacent to the associated pins. High-impedance input traces should be short, isolated from switching nodes, and preferably guarded by a grounded reference on the unused side of the input network.
Connect pin 8 to the positive supply and pin 4 to the system ground, observing the 3 V to 32 V operating range. Place the supply bypass capacitor close to these pins with a short return path. For split supplies, confirm that input and output voltages remain within their specified limits; the common-mode range extending to ground or VEE does not mean every pin may tolerate an arbitrary negative or positive voltage.
Do not treat this general-purpose amplifier as a precision comparator or rail-to-rail input device. Input offset voltage, output swing, output-current capability, and common-mode limits determine valid thresholds and loads. In single-supply threshold circuits, add hysteresis to prevent chatter, and use an external driver when the output must switch a relay, high-current load, or logic device beyond the amplifier's rated output capability.
コンプライアンス情報
Compliance status was not stated for the exact LM358ADR2G ordering code. Confirm RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals declarations for the exact onsemi part before production release.