LM358BP - Dual Operational Amplifier | Texas Instruments
MPN: LM358BP ✗ Cuối đờiLM358BP Tóm tắt
An operational amplifier is an active semiconductor device that uses differential input voltage to control an output voltage. A dual operational amplifier contains two amplifier sections in one package, allowing designers to implement two signal-processing channels while reducing board area and component count. The LM358BP is therefore useful in sensor interfaces, transducer amplifiers, voltage comparators, current-monitoring circuits, audio preamplifier stages, and general feedback-control circuits. Its dual architecture can also simplify designs in which two independent amplifier functions are required at similar supply and performance levels.
The LM358B family is described by Texas Instruments as a dual, 36-V operational amplifier with 1.2-MHz bandwidth and 3-mV maximum offset voltage. The LM358BP ordering code identifies the specific package and ordering variant of this family. The verified distributor listing describes the device as a standard or general-purpose amplifier with two circuits, and identifies the package as an 8-pin micro PBGA surface-mount package. Because the exact package dimensions, pin assignments, and full electrical limits are not included in the manufacturer result excerpts used for this page, individual electrical values should be confirmed against the manufacturer datasheet before final circuit release.
The LM358 family is commonly associated with low-power operation, high gain, and a wide operating-voltage range. In practical designs, the amplifier can be used with single-supply systems where the input and output signals remain within the common-mode and output-swing limits. The LM358BP is appropriate where two channels are needed and where a simple, widely understood dual-op-amp architecture is preferable to a more specialized precision or high-speed amplifier.
Typical applications include resistive sensor conditioning, buffered instrumentation inputs, low-frequency audio amplification, comparator functions, and general feedback amplifiers. The device can reduce board area by providing two amplifiers in one package, while the family-level supply range supports operation from conventional single-supply rails. Designers should still verify input common-mode range, output swing, output-current capability, noise, offset drift, and stability requirements against the complete LM358B datasheet.
For PCB implementation, use the manufacturer land pattern for the LM358BP package rather than substituting a generic SOIC-8 footprint. Place input, output, and supply bypass capacitors close to the relevant pins, maintain a short return path for ground currents, and avoid routing sensitive input traces beside the output stage. This page combines manufacturer family information, distributor identification, drop-in alternatives, application guidance, and design considerations to support component selection and PCB planning.
Bộ thay thế dễ dàng lắp đặt cho LM358BP — 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 LM358BP (cùng hình factor và footprint) — khác nhau ở Package, Mounting Type, Input Offset Voltage.
LM358N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →LM2904DR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →RC4558
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TP358
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
BP358
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
NSMOP-358
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LM358BP Tỷ lệ tối đa & tính chất điện
| Product Type | Dual operational amplifier |
| Number of Amplifier Channels | 2 channels |
| Supply Voltage Range | Up to 36 V |
| Gain-Bandwidth Product | 1.2 MHz |
| Input Offset Voltage | 3 mV maximum |
| Khoảng nhiệt độ hoạt động | -40°C to +85°C |
| Hộp | 8-pin micro PBGA surface-mount package |
| Kiểu lắp đặt | Surface mount |
| Application Category | Standard/general-purpose amplifier |
Hướng dẫn cấu hình chân LM358BP 8-pin micro pbga surface-mount package
Cấu hình chân cho LM358BP (8-pin micro pbga surface-mount package 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 LM358BP.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
LM358BP phù hợp cho 6 Áp dụngs: Resistive Sensor Signal Conditioning, Audio Preamplifier, Comparator and Threshold Detection, Battery-Powered Monitoring Circuit, Industrial Control Feedback Amplifier, Data Acquisition Front End.
Resistive Sensor Signal Conditioning
The LM358BP is well suited to amplifying the small voltage change produced by resistive sensors such as temperature, position, and force sensing elements. Its two amplifier sections can provide the active sensor interface and an additional gain or filtering stage. Texas Instruments identifies the LM358 family as a low-power, high-gain dual operational amplifier with a wide voltage range, making it practical for general industrial conditioning circuits. The design should use a stable reference divider, preserve the sensor's grounded single-ended signal, and include feedback resistors selected for the required gain. Before production, confirm input bias current, offset voltage, common-mode range, output swing, and noise against the sensor impedance. If the sensor produces only a very small signal or requires rail-to-rail sensing, select a precision or rail-to-rail amplifier instead.
Được đề xuất
Audio Preamplifier
The LM358BP can provide two channels of low-frequency audio preamplification in consumer, communications, and instrumentation equipment. The LM358B family's stated 1.2-MHz gain-bandwidth product supports audio-band amplification, while its dual configuration allows left and right channels to share one package. The circuit should use non-inverting or inverting feedback networks sized for the intended source impedance, followed by suitable coupling or output filtering as required. Keep the feedback loop short and use stable resistor values to avoid excessive noise or oscillation. Because the LM358BP is a compact PBGA device, place input and feedback components close to their associated pins and provide clean ground return paths. Verify output swing and drive capability before driving a low-impedance speaker or line input.
Được đề xuất
Comparator and Threshold Detection
The LM358BP can implement threshold detection by applying a reference voltage to one input and a feedback network or open-loop comparison to the other. This arrangement is useful for battery, sensor, and industrial control signals where a simple digital decision is required. The LM358 family provides high open-loop gain, which supports comparator-style behavior, although the circuit should account for output saturation and the transition region. Use pull-up or pull-down circuitry where the downstream device requires defined logic levels, and select the reference divider for accuracy and temperature stability. The two channels can monitor two independent thresholds. Confirm output-current capability, common-mode limits, and propagation behavior from the complete datasheet before using the device in safety-critical or fast-response systems.
Được đề xuất
Battery-Powered Monitoring Circuit
The LM358BP is appropriate for low-power battery monitoring because the LM358 family emphasizes low power consumption and a wide supply-voltage range. Two amplifier channels can monitor a divided battery voltage and provide buffering for a comparator, while the compact package helps conserve board area. The input divider should use resistors with suitable voltage rating, tolerance, and temperature coefficient, and its current should be selected to balance measurement resolution against battery drain. The amplifier's common-mode and output limits must be evaluated at the lowest battery voltage. For systems that require a low threshold near the supply rail, consider a rail-to-rail comparator or a dedicated battery monitor. Verify the LM358B quiescent current and load behavior against the complete manufacturer specifications before finalizing the power budget.
Được đề xuất
Industrial Control Feedback Amplifier
The LM358BP can form an error amplifier inside an analog control loop for current regulation, actuator drive, or power-control subsystems. Its dual architecture allows one channel to serve as the error amplifier while the other buffers a reference or monitors a feedback signal. The 36-V family capability is useful for industrial systems with higher supply levels, provided the actual signal amplitudes remain inside the common-mode range. Compensation components should be placed close to the amplifier pins, and feedback routing should avoid coupling from the power stage into the high-impedance input node. Confirm loop stability, output-current capability, saturation recovery, and thermal performance under worst-case load conditions. A dedicated regulator or transconductance amplifier may be preferable where precision or faster settling is required.
Được đề xuất
Data Acquisition Front End
The LM358BP can buffer and amplify sensor lines before conversion by an ADC in laboratory, process-control, and test equipment. Two channels support differential or sequential signal conditioning, while the general-purpose architecture allows simple passive anti-alias networks around each amplifier. Choose resistor values to keep the ADC input range valid at maximum and minimum sensor outputs, and include input bias-current compensation for high-impedance sources. The compact 8-pin PBGA package reduces board footprint but demands careful ball-grid escape routing and assembly planning. Use a continuous ground reference and short traces between the op amp, feedback components, and decoupling network. For high-resolution measurement, check input offset, drift, noise, and settling against the acquisition budget; a precision amplifier may be required when the LM358B family limits dominate.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho LM358BP — 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 | LM358N | LM2904 | RC4558 | TP358 | BP358 | NSMOP-358 |
|---|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | 3PEAK | 3PEAK | SGMC |
| Package | 8-pin micro PBGA surface-mount package | 8-pin micro PBGA surface-mount package | 8-pin micro PBGA surface-mount package | 8-pin micro PBGA surface-mount package | 8-pin micro PBGA surface-mount package | 8-pin micro PBGA surface-mount package | 8-pin micro PBGA surface-mount package |
| Amplifier Channels | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Family | LM358B | LM358 | LM2904 | RC4558 | TP358 | BP358 | NSMOP-358 |
| Special Feature | LM358B family identification | LM358 family ordering variant | LM2904 family ordering variant | RC4558 family ordering variant | LM358-compatible alternative | LM358-compatible alternative | LM358-compatible alternative |
Bảo phân biệt quan trọng
- Uses the compact 8-pin micro PBGA LM358BP package (vsLM358N)
- LM358B family specification provides 1.2-MHz bandwidth (vsLM2904)
- Specified 3-mV maximum input offset voltage (vsTP358)
Ghi chú thiết kế
Use the exact LM358BP manufacturer land pattern and ball-map documentation before PCB routing. The verified listing identifies an 8-pin micro PBGA package, which cannot be treated as a standard SOIC-8 footprint even when the device shares the same dual-op-amp pin function. Place bypass capacitors close to the supply terminals, route supply and ground connections with low resistance, and keep feedback components close to the amplifier inputs.
Keep sensitive input and feedback traces short and away from outputs or inductors. For high-impedance sensors, use a low-value guard or driven shield if leakage from the input bias current would corrupt the measurement. Check that the signal remains inside the LM358B common-mode range at the lowest supply voltage; a nominal 36-V family rating does not guarantee rail-to-rail input or output operation.
Estimated: use P_D approximately equal to total supply voltage multiplied by total supply current plus output-stage dissipation when sizing the thermal design. Calculate the worst case with the highest supply voltage, maximum output swing, and expected load, then compare the resulting junction temperature with the datasheet limit. The compact PBGA footprint relies heavily on its thermal pad and via arrangement, so confirm the package drawing and exposed-thermal-pad requirements.
Do not assume that an LM358-family pin-compatible part can be soldered onto the LM358BP footprint without checking the package drawing. Some cross-reference candidates are offered in DIP-8 or SOIC-8 rather than the 8-pin micro PBGA package identified for LM358BP. Also confirm offset, bias current, common-mode range, output swing, and temperature grade before substituting a different manufacturer in a production design.
Thông tin tuân thủ
No explicit compliance declarations were included in the verified manufacturer and distributor excerpts. Confirm RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status using the exact ordering variant and current manufacturer documentation.
