LM358F-E2 Dual Ground-Sense Op Amp | ROHM Semiconductor
料号： LM358F-E2 ✓ 量产中LM358F-E2 概述
An operational amplifier is an active analog integrated circuit that compares two input voltages and drives its output according to the difference between them. In a closed-loop circuit, negative feedback makes the amplifier behave predictably, while an open-loop application can use its high gain for comparator-style functions. The LM358F-E2 belongs to the dual operational-amplifier family, which combines two amplifier channels with a common package for space-efficient analog design.
The principal feature of the LM358F-E2 is its dual-channel configuration. Two independent amplifier sections can process different signals in one package, reducing component count and simplifying board layout. Its ground-sense designation identifies its suitability for applications in which an input is referenced close to ground. The 8-pin SOP package also provides a practical footprint for compact, mixed-signal equipment where conventional through-hole dual amplifiers would be too large.
Use of a dedicated ground-sense amplifier architecture can simplify circuits in which the measured or sensed voltage is small relative to the system ground. In practical designs, the exact input range, supply limits, offset, bandwidth, output capability, and common-mode behavior must be confirmed against the manufacturer datasheet for the selected operating conditions. Decoupling, input-referenced grounding, and output-load stability remain the principal implementation considerations.
Typical uses include low-level sensor conditioning, current-sensing interfaces, general-purpose filtering, voltage buffering, audio preamplification, feedback networks, and small industrial control modules. The dual format is particularly useful when a board needs two related analog functions, such as a signal-conditioning channel followed by an active filter or buffer. Its low-power circuit positioning makes it relevant to compact analog and embedded-control products that require more than one amplifier function without allocating separate packages.
For PCB implementation, place the device so that input and output traces remain short, maintain a quiet ground reference around both amplifier channels, and decouple the supply pins according to the manufacturer guidance. Confirm that the SOP land pattern matches the selected ordering code and supplier package drawing. When substituting the device, verify electrical ratings and operating-temperature limits rather than relying on the eight-pin footprint alone.
This product record combines the confirmed LM358F-E2 identity, dual ground-sense function, and 8-pin SOP packaging with application guidance, comparison parameters, and practical replacement considerations. It helps engineers narrow the selection while preserving the need to validate detailed electrical limits against the current manufacturer documentation.
直接替换替代料： LM358F-E2 ——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： LM358F-E2 （相同外形与封装尺寸） ——差异在于 Package, Product Type, Common-Mode Input Range, Gain-Bandwidth Product, Compensation.
LM358M
✅ 直接替换联系询价
查看数据手册 →LM358DR2G
✅ 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 →RC4558
✅ 直接替换📋 参考替代料（不在目录中）
LM358F-E2 最大额定值与电气特性
| Amplifier Circuit Count | 2 circuits |
| Product Type | Dual ground-sense operational amplifier |
| 封装 | 8SOP, 8 pins |
| 安装类型 | Surface mount |
| Datasheet Length | 48 pages |
LM358F-E2 8sop, 8 pins 引脚配置指南
LM358F-E2（8sop, 8 pins 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： LM358F-E2.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LM358F-E2 适用于 6 应用s: Low-Level Sensor Signal Conditioning, Current-Sensing Amplifier Interface, Active Filtering and Signal Conditioning, Audio Preamplification, Industrial Control and Monitoring, Embedded Analog Interface.
Low-Level Sensor Signal Conditioning
The LM358F-E2 fits low-level sensor interfaces because it is designed as a ground-sense operational amplifier and provides two amplifier channels in one 8SOP package. One channel can amplify a sensor signal while the other supplies filtering or buffering. The confirmed ground-sense orientation is useful when the measured voltage lies close to the system ground reference. Before finalizing the circuit, confirm the common-mode input range, input offset, noise, and output swing against the manufacturer datasheet. Keep the sensor return and analog ground routing compact to prevent ground gradients from being interpreted as sensor variation.
推荐
Current-Sensing Amplifier Interface
The LM358F-E2 can provide the gain and reference-side buffering required around a current-sense signal when the amplifier inputs operate near ground. Its two channels allow a measurement amplifier arrangement, with one channel amplifying the sense voltage and the other providing an intermediate buffer stage. The 8SOP package keeps the analog section compact on a mixed-signal board. Check the manufacturer limits for input common-mode range, output swing, offset, and bandwidth against the shunt voltage, trace resistance, and operating current before production use.
推荐
Active Filtering and Signal Conditioning
The dual amplifier arrangement of the LM358F-E2 is useful for implementing two stages of active filtering or for combining a filter with a signal buffer. Because the device is positioned for ground-sense and low-power circuits, it is suitable for compact analog conditioning blocks operating close to the ground reference. Passive components define the filter response while the amplifiers reduce loading and improve signal integrity. Confirm the gain-bandwidth product, slew rate, noise, and stability requirements in the manufacturer datasheet before selecting component values for a specific filter bandwidth.
推荐
Audio Preamplification
The LM358F-E2 can support low-level audio preamplification when the signal is ground-referenced and the application does not require a rail-to-rail precision audio amplifier. Its two channels can handle related mono stages or provide amplification and buffering within one 8SOP package. The low-power positioning helps keep the circuit compact, while the grounded input architecture suits sensors and microphone-style interfaces. Evaluate input noise, offset, gain-bandwidth product, output swing, and distortion requirements in the manufacturer datasheet before using it in a high-fidelity or high-level audio path.
推荐
Industrial Control and Monitoring
The LM358F-E2 is applicable to compact industrial monitoring boards that require two ground-referenced analog channels for sensor conditioning, threshold amplification, or feedback control. The 8SOP surface-mount package supports automated assembly and high board density, while the dual topology limits component count. Use separate high-impedance paths for measured signals and maintain a low-impedance ground reference for the amplifier supply. Confirm the operating-temperature range, supply limits, electrical noise, and load capability against the manufacturer documentation for each industrial operating condition.
推荐
Embedded Analog Interface
The LM358F-E2 can bridge low-voltage analog sensing stages to an embedded controller when the controller supplies the system ground and the LM358F-E2 handles ground-referenced buffering. Two channels can condition separate measurements or amplify and buffer one signal. Its 8SOP footprint is useful beside densely packaged digital devices, although analog layout must still preserve short signal paths and quiet supply references. Verify the exact output swing and input common-mode range before interfacing to a controller, and confirm that the selected ordering code meets the assembly temperature requirements.
推荐
推荐产品汇总
工程参考数据： LM358F-E2 ——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 | LM358M | LM358DR2G | LM2904PW | RC4558 |
|---|---|---|---|---|---|
| Package | 8SOP | 8SOP | 8SOP | 8SOP | 8SOP |
| Brand | ROHM Semiconductor | ROHM Semiconductor | ROHM Semiconductor | Texas Instruments | Texas Instruments |
| Amplifier Channel Count | 2 circuits | 2 circuits | 2 circuits | 2 circuits | 2 circuits |
| Pin Count | 8 pins | 8 pins | 8 pins | 8 pins | 8 pins |
| Product Positioning | Ground-sense operational amplifier | LM358-family operational amplifier | LM358-family operational amplifier | LM358-family operational amplifier | LM358-family operational amplifier |
关键差异点
- Maintains a compact dual-channel analog implementation （对比 MCP6043-E/P)
- Direct ROHM ordering-code alternative with the same documented architecture （对比 LM358M)
- Ground-sense positioning for compact analog conditioning （对比 TLV2402ID)
- Dual-amplifier package simplifies paired analog functions （对比 LM358DR2G)
设计说明
Route each amplifier channel as a compact analog subsystem, keeping feedback components close to the relevant pins and avoiding long loops around both channels. Place ground-referenced input traces away from switch-node, relay-coil, and high-current return paths. Because the LM358F-E2 is intended for ground-sense operation, preserve a low-impedance reference near the device and use the manufacturer pin-description table when assigning the land pattern.
Install the bypass capacitors recommended by the manufacturer as close as practical to the supply and ground pins, using the shortest possible current loop. Check capacitor voltage ratings against the actual supply, and verify the amplifier's operating region rather than assuming that a nominal rail is sufficient. The confirmed 2-circuit, 8SOP architecture does not itself define the allowable supply range, so that limit must be established from the LM358F-E2 datasheet before circuit release.
Do not substitute an 8-pin amplifier solely because the package and channel count match. Confirm supply voltage, input common-mode range, output swing, offset, gain-bandwidth product, noise, slew rate, output load capability, stability, and temperature grade for every proposed alternative. The LM358F-E2, LM358M, LM358DR2G, LM2904PW, and RC4558 are documented candidates for comparison, but package equivalence alone does not establish electrical equivalence.
For ground-referenced sensor inputs, use a quiet analog return and keep high-value input impedances away from leakage-prone board surfaces and contaminated areas. Check bias-current errors, input offset, and resistor thermal noise against the required measurement accuracy. If either amplifier drives a capacitive load, verify stability and output-current limits in the manufacturer documentation before adding series isolation resistance or compensation.
合规信息
The LM358F-E2 is an operational-amplifier IC, so AEC-Q100 automotive qualification is not indicated by the available product description. RoHS, REACH, lead-free, halogen-free, and conflict-mineral status require confirmation from the current manufacturer product documentation.
