LM358M - Dual 32 V, 1 MHz Operational Amplifier | Texas Instruments
料号： LM358M ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.45 | $0.45 |
| 10 | $0.42 | $4.20 |
| 100 | $0.38 | $38.00 |
| 500 | $0.34 | $170.00 |
| 1,000 | $0.3 | $300.00 |
LM358M 概述
An operational amplifier is an analog signal-conditioning semiconductor device that uses high open-loop gain to amplify voltage differences. LM358M combines two amplifier channels in one package, allowing one IC to implement functions such as buffers, transimpedance stages, filters, comparators, sensor interfaces, and audio or industrial control blocks. Its dual-channel architecture can also reduce board area when both channels perform similar signal tasks.
The verified listing specifies a 32 V supply-related operating class and 1 MHz gain-bandwidth product for the LM358M device. The supplied datasheet search results describe the LM358 family as internally frequency compensated for unity gain, with a large DC voltage gain of 100 dB, a wide power-supply range of 3 V to 32 V for LM358/LM358A, and an input common-mode voltage range that includes ground. These features make the part suitable for designs where the input signal is referenced to the supply ground.
LM358M is packaged as an 8-SOIC, making it a practical surface-mount choice for compact analog boards. The dual amplifier organization can simplify routing when two related channels are required, while the general-purpose architecture supports broad industrial, consumer, instrumentation, and embedded-control applications. The SOIC package also supports conventional PCB assembly and inspection processes used for many analog signal-chain products.
Typical applications include current sensing with a shunt amplifier, sensor-signal conditioning, active filtering, audio preamplification, comparator-style threshold detection, and low-frequency control loops. Because the verified data does not provide a complete numerical specification set, parameters such as exact input offset voltage, output-current limits, slew rate, common-mode limits, noise density, and temperature limits should be checked in the manufacturer datasheet before production release.
When laying out LM358M, keep input and feedback traces short, place decoupling capacitors close to the supply pins, and avoid routing high-current return paths through sensitive analog nodes. For single-supply designs, confirm that the input common-mode range includes the signal range and that the load does not exceed the output-current capability stated in the selected device datasheet. This page consolidates verified distributor specifications, source links, package information, and practical design guidance.
直接替换替代料： LM358M ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： LM358M （相同外形与封装尺寸） ——差异在于 Package, Mounting Type, Number of Channels.
快速对比工具——选择替代料号进行并排对比：
LM358N
✅ 直接替换✓ 有现货
$0.14 / 个
查看数据手册 →LM2904D
✅ 直接替换✓ 有现货
$0.1 / 个
查看数据手册 →LM358M
✅ 直接替换✓ 有现货
$0.3 / 个
查看数据手册 →LM358M
✅ 直接替换✓ 有现货
$0.3 / 个
查看数据手册 →RC4558
✅ 直接替换📋 参考替代料（不在目录中）
SGMI8358
✅ 直接替换📋 参考替代料（不在目录中）
TP358
✅ 直接替换📋 参考替代料（不在目录中）
BP358
✅ 直接替换📋 参考替代料（不在目录中）
LM358M 最大额定值与电气特性
| Product Type | Dual operational amplifier |
| Number of Channels | 2 independent channels |
| 电源电压 | 3 V to 32 V for LM358/LM358A family |
| Maximum Supply Voltage | 32 V |
| Gain-Bandwidth Product | 1 MHz |
| DC Voltage Gain | 100 dB |
| Common-Mode Input Range | Includes ground |
| Output Swing | DC to VCC - 1.5 V |
| Compensation | Internally frequency compensated for unity gain |
| 封装 | 8-SOIC |
| 安装类型 | Surface mount |
LM358M 8-soic 引脚配置指南
LM358M（8-soic 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： LM358M.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LM358M 适用于 6 应用s: Current-Sensing Signal Conditioning, Sensor Signal Conditioning, Active Audio Filtering, Battery-Powered Monitoring, Industrial Threshold Detection, Embedded Analog Control.
Current-Sensing Signal Conditioning
LM358M suits low-frequency shunt-current sensing when the sensed voltage is amplified into a more useful range for an ADC or controller. Its dual-channel SOIC-8 package allows one channel to amplify the shunt voltage while the other buffers a reference or handles another related analog function. The verified LM358 family information supports single-supply operation from 3 V to 32 V and an input common-mode range including ground, which is useful when the shunt signal sits near the lower supply rail. The 1 MHz gain-bandwidth product is adequate for many slow current-control loops, although precision offset, input bias, and output-current checks remain necessary before selecting it for a high-accuracy measurement path.
推荐
Sensor Signal Conditioning
LM358M is useful for buffering and amplifying outputs from sensors that operate from a single supply. The verified family description identifies a common-mode input range that includes ground, allowing many sensor signals referenced to 0 V to be handled without a negative supply. Its dual-channel arrangement can combine a sensor buffer with an active filter or gain stage in one 8-SOIC package. The 1 MHz bandwidth is suitable for many temperature, pressure, level, and resistive-sensor interfaces operating well below megahertz signal rates. Engineers should still verify input offset, bias current, noise, and output-swing limits against the exact manufacturer datasheet.
推荐
Active Audio Filtering
LM358M can implement low-frequency active filters and preamplifier stages for cost-sensitive audio boards. The verified 1 MHz gain-bandwidth product provides more bandwidth than a strictly audio-bandwidth device while the internally compensated topology supports unity-gain stable operation. The dual amplifier lets a designer use one channel for a low-pass or band-pass section and the other for gain or buffering. Actual sound quality depends on resistor tolerances, capacitor selection, output loading, supply noise, and the amplifier's noise and distortion specifications, which are not fully quantified in the supplied data. Confirm the exact LM358M variant and load requirements before using it in a line-level or precision audio design.
推荐
Battery-Powered Monitoring
LM358M is appropriate for many battery-powered monitoring circuits because the verified LM358 family supports a 3 V to 32 V supply range and includes ground in its input common-mode range. A 3.3 V or 5 V system can use the two amplifier channels for sensor amplification and voltage buffering while maintaining a single-supply architecture. The 1 MHz bandwidth is more than adequate for many slow battery-state measurements and threshold signals. Designers should account for the device's quiescent current and output-current limits from the exact datasheet, because those values are not included in the verified snippets. Low-power designs should also check whether the selected LM358M manufacturer variant offers the required quiescent-current behavior.
推荐
Industrial Threshold Detection
LM358M can be used as a dual comparator-like element in low-frequency industrial threshold and alarm circuits, although it remains an operational amplifier rather than a dedicated comparator. Its high DC voltage gain and input common-mode range including ground support sensing signals near the lower rail. The dual SOIC-8 package allows one channel to monitor a process signal and the other to buffer a threshold reference or provide hysteresis. The 1 MHz bandwidth is ample for many slow feedback systems but not optimized for very fast edge detection. For production use, verify output saturation levels, input offset, propagation behavior, noise immunity, and supply limits from the exact manufacturer documentation.
推荐
Embedded Analog Control
LM358M fits embedded analog-control blocks where a microcontroller needs buffered control signals, feedback amplification, or an active compensation network. The 8-SOIC surface-mount package is convenient for compact controller boards, and the dual-channel organization can place an amplifier and buffer close together to reduce routing length. Its 1 MHz gain-bandwidth product is suitable for many low-frequency control loops and actuator-driver interfaces. The single-supply family description and ground-inclusive common-mode range simplify designs where the analog signal is referenced to the same ground as the controller. Before finalizing, check the exact output swing and current capability, plus thermal limits, because those values are not present in the supplied verified data.
推荐
推荐产品汇总
工程参考数据： LM358M ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | LM358N | LM2904D | RC4558 | SGMI8358 |
|---|---|---|---|---|---|
| Package | 8-SOIC | DIP-8 | SOIC-8 | SOIC-8 | SOIC-8 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Toshiba | SGMC (Sagna Microelectronics) |
| Surface Mount | Yes | No, DIP-8 listed | Yes, SOIC-8 listed | Yes, candidate listed as SOIC-8 | Yes, candidate listed as SOIC-8 |
关键差异点
- Dual amplifier channels in one surface-mount package （对比 LM358N)
- Broad single-supply operating class （对比 LM2904D)
- Unity-gain stability for simple analog layouts （对比 RC4558)
- General-purpose 1 MHz signal bandwidth （对比 LM324)
设计说明
Place the input, feedback, and supply-return connections close to the LM358M pins, and keep analog signal traces away from switching-node and high-current paths. The dual amplifier can create coupling between channels when they share a supply or ground plane, so preserve adequate spacing between unrelated loops. Use a continuous ground reference and route output currents away from the input and feedback nodes.
The verified family information supports a 3 V to 32 V supply range, but the actual design must leave suitable input and output headroom. Place the supply-bypass capacitor close to the LM358M supply pins and verify ground return paths. Do not assume that the nominal maximum supply rating is a suitable operating point for every temperature, load, or output-swing requirement; use the exact datasheet limits for the selected manufacturer.
LM358-family devices are internally frequency compensated for unity gain, but a closed-loop circuit can still become unstable with unsuitable feedback values, excessive capacitive loading, or poor layout. Avoid using a generic LM358 pinout assumption across manufacturers. Confirm the exact 8-SOIC pinout, package dimensions, polarity markings, and ordering suffix before releasing a PCB footprint or approving a substitute.
The 1 MHz gain-bandwidth product is suitable for many low-frequency sensor, audio, and control tasks but limits usable bandwidth in higher closed-loop gains. Select feedback resistors and compensation capacitors based on the target noise gain and signal bandwidth, and simulate capacitive loading before adding long external cables. For fast transients or precision AC measurements, choose an amplifier with verified wider bandwidth and lower distortion.
合规信息
The supplied web results do not provide verified RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive-qualification statements for LM358M. Compliance must be confirmed from the exact manufacturer product documentation.
