LM358EDR2G - Dual General-Purpose Op Amp | onsemi
料号： LM358EDR2G ✓ 量产中LM358EDR2G 概述
An operational amplifier is an analog signal-processing IC that compares voltages applied to its high and low inputs and amplifies the difference. A dual operational amplifier combines two amplifier channels in one package. Within the broader semiconductor hierarchy, an operational amplifier belongs to the amplifier IC class, where it is used for buffering, signal conditioning, feedback control, instrumentation, and general analog circuit design.
The LM358EDR2G is categorized as a standard, general-purpose amplifier rather than a precision or high-speed device. Its principal practical feature is its ability to operate from one supply or from split supplies. Its input common-mode range reaching ground and VEE is especially useful in single-supply circuits because it allows the amplifier to process signals near the lower supply rail. The SOIC-8 surface-mount package also supports automated assembly and compact general-purpose analog boards.
The LM358 family uses a two-amplifier approach derived from the circuit architecture of the LM324 family. Each channel provides independent input and output connections while sharing common supply and ground pins. This arrangement lets a design implement two related analog functions, such as a buffer followed by a gain stage, without using two separate integrated circuits. Split-supply operation also supports bipolar signal paths centered around ground.
Typical uses include low-side current measurement, sensor-signal conditioning, audio preamplification, active filtering, comparator-style threshold circuits, and industrial control interfaces. The grounded-input capability is useful when an upstream sensor produces voltages close to zero. Applications requiring rail-to-rail input or output behavior, very low offset voltage, high slew rate, or unrestricted output swing should verify the manufacturer specifications before assigning the amplifier to the function.
For PCB design, place input and output components close to their associated pins, maintain a quiet ground-return path, and decouple the supply pins near the device. Check input and output common-mode limits across the complete temperature range, confirm the intended load and output-current conditions, and verify stability with the selected feedback network. Do not assume that the general-purpose LM358 specification is adequate for precision instrumentation.
This product data combines the manufacturer description, lifecycle and compliance status, package information, source documents, and same-footprint replacement guidance into an engineering-focused overview. It also identifies the operating conditions and design checks that must be reviewed before using a substitute in an existing LM358EDR2G footprint.
直接替换替代料： LM358EDR2G ——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： LM358EDR2G （相同外形与封装尺寸） ——差异在于 Mounting Type, Maximum Supply Voltage, Number of Amplifiers, Package, Product Type.
LM358N
✅ 直接替换联系询价
查看数据手册 →LM2904PW
✅ 直接替换联系询价
查看数据手册 →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）
NSMOP-358
✅ 直接替换📋 参考替代料（不在目录中）
LM358EDR2G 最大额定值与电气特性
| Number of Amplifier Channels | 2 channels |
| Number of Circuits | 2 circuits |
| Device Type | General-purpose operational amplifier |
| Supply Configuration | Single supply or split supply |
| Input Common-Mode Range | Extends to ground and VEE |
| Power Consumption | Low power drain |
| Package Type | 8-pin SOIC |
| Total Pin Count | 8 pins |
| 安装类型 | Surface mount |
| 生命周期状态 | Active |
| RoHS Compliance | ROHS3 compliant |
| REACH Compliance | Unaffected |
| Moisture Sensitivity Level | MSL 1 (unlimited) |
LM358EDR2G 8-pin soic 引脚配置指南
LM358EDR2G（8-pin 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： LM358EDR2G.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LM358EDR2G 适用于 6 应用s: Low-Side Current-Sense Amplifier, Industrial Sensor Signal Conditioning, Audio Preamplifier, Active Filtering, Threshold and Control Interface, Battery-Powered Analog Front End.
Low-Side Current-Sense Amplifier
The LM358EDR2G is suitable for amplifying the small voltage developed across a low-side shunt because both channels are available in one 8-pin SOIC package and the input common-mode range extends to ground and VEE. According to the onsemi LM358 datasheet, this arrangement supports signal conditioning near the lower supply rail. One channel can amplify the shunt voltage while the other can provide filtering or an intermediate buffer. The gain is set by external resistors, and the final values must preserve the amplifier's specified common-mode and output-swing limits. Check offset voltage, input bias current, output capability, and stability against the required measurement accuracy before production use.
推荐
Industrial Sensor Signal Conditioning
The LM358EDR2G can condition low-level industrial sensor signals using its two general-purpose amplifier channels and single- or split-supply operation. According to the onsemi LM358 datasheet, the common-mode input range extends to ground and VEE, which is advantageous when a sensor output lies close to the zero-volt rail. The two channels can form a non-inverting or inverting stage with external feedback components, followed by additional filtering. Keep the shunt and feedback network close to the corresponding pins, provide local supply decoupling, and verify the actual sensor output range against the amplifier's input and output limits.
推荐
Audio Preamplifier
The LM358EDR2G can be used in a modest audio preamplifier when low power drain and split-supply operation are more important than precision, high slew rate, or rail-to-rail swing. Its two channels in an 8-pin SOIC package can provide gain and filtering stages, while the common-mode input range extending to ground and VEE supports bipolar audio signals. According to the onsemi LM358 datasheet, the device is a general-purpose amplifier rather than a dedicated low-noise audio part. Evaluate gain-bandwidth behavior, output swing, distortion, and noise in the intended frequency range before using it with microphone or line-level sources.
推荐
Active Filtering
The LM358EDR2G's two channels can implement active low-pass, high-pass, or band-pass sections in analog signal-conditioning paths. According to the onsemi LM358 datasheet, the device supports single or split supplies and includes a common-mode input range that reaches ground and VEE. A second-order filter can use one channel for an inverting active stage and the other for another filter section, with passive component selection determining the nominal response. The completed design should be checked for closed-loop stability, component tolerances, output loading, and gain-bandwidth limitations across the intended temperature and supply ranges.
推荐
Threshold and Control Interface
The LM358EDR2G can implement a threshold detector or feedback-control interface where two independent amplifier channels improve PCB economy. According to the onsemi LM358 datasheet, the common-mode input range extends to ground and VEE, allowing signals near the lower rail to be compared with a reference in a single-supply design. External hysteresis components can establish switching behavior, while the second channel can amplify the resulting control signal. Validate the actual output state at each supply voltage, include adequate output-current margin for the driven load, and confirm comparator-style operation without relying on saturation behavior beyond the published limits.
推荐
Battery-Powered Analog Front End
The LM358EDR2G can serve in a battery-powered analog front end when its low power drain and ability to work from one supply are useful. According to the onsemi LM358 datasheet, the device provides two amplifier channels in an 8-pin SOIC package and accepts a common-mode input range extending to ground and VEE. This supports low-level sensor conditioning without requiring a split supply. Place the bypass capacitor close to the supply pin, use high-impedance biasing components where offset matters, and confirm the quiescent current and supply-voltage range in the manufacturer datasheet. Battery life should be evaluated over the complete operating mode because an amplifier can consume additional current as its output drives the load.
推荐
推荐产品汇总
工程参考数据： LM358EDR2G ——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 | LM2904PW | SGMI8358 | TP358 | NSMOP-358 |
|---|---|---|---|---|---|---|
| Brand | onsemi | STMicroelectronics | Texas Instruments | SGMC (Sagna Microelectronics) | 3PEAK | NSC (Natron Semiconductor) |
| Package | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 |
| Amplifier Channels | 2 channels | 2 channels | 2 channels | 2 channels | 2 channels | 2 channels |
关键差异点
- Two amplifier channels in one 8-pin SOIC （对比 LM358N)
- Single- and split-supply operation （对比 LM2904PW)
- Ground-referenced input capability （对比 SGMI8358)
- Active onsemi general-purpose dual amplifier （对比 TP358)
设计说明
Route the two input networks, feedback components, and output loads directly to their corresponding SOIC-8 pins. Place the supply bypass capacitor close to the device's supply and ground pins, and use the shortest practical return path to the source. This is particularly important for sensor-amplifier circuits, where long input traces can pick up interference and shared ground impedance can distort the measured low-level signal.
Confirm that the selected single or split supply keeps both inputs and outputs within the manufacturer-specified common-mode and output-swing limits. The common-mode input range extending to ground and VEE makes the amplifier useful near the lower rail, but it does not imply rail-to-rail output operation. Check the output load and external drive current under worst-case supply and temperature conditions.
Do not treat an LM358-class substitute as automatically identical because the footprint is the same. Before replacing LM358EDR2G, compare input offset, input bias current, unity-gain bandwidth, slew rate, output swing, output-current capability, common-mode limits, noise, temperature grade, and stability. Re-run the worst-case signal, load, supply, and tolerance analysis rather than relying only on the part-number family.
For low-level sensor signals, use a compact input layout, guard or shield sensitive traces when appropriate, and avoid sharing high-current return paths with the amplifier ground. Select feedback resistors with values compatible with the amplifier's bias current and noise behavior. Evaluate the complete circuit over temperature because resistor noise, drift, and amplifier offset can dominate the usable measurement accuracy.
合规信息
The product record identifies the LM358EDR2G as ROHS3 compliant and REACH unaffected, with MSL 1 (unlimited). Automotive qualification, lead-free status, halogen-free status, and conflict-minerals status were not specified.