LM358F-E2 Dual Ground-Sense Op Amp | ROHM Semiconductor
MPN: LM358F-E2 ✓ Hoạt độngLM358F-E2 Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho LM358F-E2 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với LM358F-E2 (cùng hình factor và footprint) — khác nhau ở Package, Product Type, Common-Mode Input Range, Gain-Bandwidth Product, Compensation.
LM358M
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →LM358DR2G
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →LM2904PW
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →RC4558
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LM358F-E2 Tỷ lệ tối đa & tính chất điện
| Amplifier Circuit Count | 2 circuits |
| Product Type | Dual ground-sense operational amplifier |
| Hộp | 8SOP, 8 pins |
| Kiểu lắp đặt | Surface mount |
| Datasheet Length | 48 pages |
Hướng dẫn cấu hình chân LM358F-E2 8sop, 8 pins
Cấu hình chân cho LM358F-E2 (8sop, 8 pins gói). Thành phần số hiệu này có chân đầu vào, đầu ra và nguồn cung cấp. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết cấu hình chân bù, bù trừ và chân kích hoạt. Hoàn hảo cho điều kiện tín hiệu và mạch khuếch đại.
Không có dữ liệu chân cụ thể sẵn có cho LM358F-E2.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
LM358F-E2 phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho LM358F-E2 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Maintains a compact dual-channel analog implementation (vsMCP6043-E/P)
- Direct ROHM ordering-code alternative with the same documented architecture (vsLM358M)
- Ground-sense positioning for compact analog conditioning (vsTLV2402ID)
- Dual-amplifier package simplifies paired analog functions (vsLM358DR2G)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
