LM248N - Quad 36V 1MHz Op Amp | Texas Instruments
MPN: LM248N ✓ Hoạt độngLM248N Tóm tắt
An operational amplifier is an analog integrated circuit that uses high open-loop gain to amplify the difference between its input voltages. The LM248 belongs to the broader hierarchy of operational amplifier, analog amplifier, and semiconductor devices. Unlike a comparator, the LM248 is intended for linear signal amplification, while its overload protection and internally compensated design support practical feedback-based circuit implementation.
The LM248N combines a 1 MHz gain-bandwidth product with a slew rate of 0.5 V/µs, according to the verified product search results. Its input and output overload protection make it suitable for conventional op-amp stages connected to external resistors and feedback networks. The four independent circuits in the package can be assigned separately to instrumentation buffers, active filters, sensor interfaces, or voltage-feedback stages when circuit conditions meet the device requirements.
The LM248N is identified by the verified search data as a standard general-purpose amplifier in a 14-PDIP package. The product family is also described as designed to be interchangeable with industry-standard LM148, LM248, and LM348 devices. The verified distributor listing identifies the part as a four-circuit amplifier, confirming the quad-channel architecture and through-hole package format.
Typical applications include low-frequency analog signal conditioning, buffered sensor interfaces, audio and communications support circuits, general instrumentation, and multiple-channel analog systems. Because it is a bipolar-style general-purpose amplifier family, designers should verify supply voltage, input common-mode range, output swing, stability, and load conditions against the manufacturer datasheet before finalizing a design.
The primary design consideration is to follow the manufacturer’s recommended supply, biasing, feedback, and decoupling arrangements. Because no complete electrical characteristic table or application-specific circuit constraints were included in the verified data, unsupported values are marked for engineering follow-up rather than inferred. This page summarizes verified product identity, architecture, package, and application context alongside sourcing and replacement guidance.
This page synthesizes verified manufacturer and distributor information, drop-in replacement considerations, comparison fields, and practical engineering guidance for LM248N selection and PCB integration.
Bộ thay thế dễ dàng lắp đặt cho LM248N — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
LM348N
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LM248N Tỷ lệ tối đa & tính chất điện
| Product Type | Quad operational amplifier |
| Number of Amplifier Channels | 4 |
| Maximum Supply Voltage | 36 V |
| Gain-Bandwidth Product | 1 MHz |
| Slew Rate | 0.5 V/µs |
| Khoảng nhiệt độ hoạt động | -25°C to 85°C |
| Quiescent Current per Amplifier | 0.6 mA typical |
| Output Stage | Class AB output stage |
| Protection | Input/output overload protection |
| Compensation | Internally compensated |
| Hộp | 14-pin PDIP |
| Kiểu lắp đặt | Through-hole |
| Trạng thái RoHS | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | not_applicable |
Hướng dẫn cấu hình chân LM248N 14-pin pdip
Cấu hình chân cho LM248N (14-pin pdip 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 LM248N.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
LM248N phù hợp cho 7 Áp dụngs: General-Purpose Instrumentation, Sensor Signal Conditioning, Buffered Control and Analog Feedback, Audio and Communications Support, Power-Supply Monitoring and Conditioning, Active Filtering and Analog Processing, Industrial Control Interfaces.
General-Purpose Instrumentation
The LM248N fits low- to moderate-frequency instrumentation because it combines four independent amplifier channels with a 1 MHz gain-bandwidth product and 0.5 V/µs slew rate in one 14-pin PDIP. Each channel can implement voltage-following, non-inverting, or inverting stages when the external feedback network is selected correctly. The verified 36 V maximum supply rating provides headroom for suitably designed bipolar or single-supply circuits, although the complete supply limits must be confirmed from the datasheet. Engineers should also verify input common-mode range, output swing, offset, bias current, and load behavior for the measurement being performed.
Được đề xuất
Sensor Signal Conditioning
The LM248N can condition low-bandwidth sensor signals through buffering, gain amplification, filtering, and active-feedback stages. Its four-channel organization allows several independent sensor channels to share a package while keeping each amplifier isolated. The 1 MHz gain-bandwidth product and 0.5 V/µs slew rate are adequate for many slower measurement paths, but they do not replace a full input and output range check. For thermocouple, bridge, pressure, or current-sense interfaces, validate common-mode limits, offset behavior, noise, grounding, and protection against the sensor’s operating environment.
Được đề xuất
Buffered Control and Analog Feedback
The LM248N can serve as a buffered control element in analog feedback loops where several independent amplifier sections are convenient. Its Class AB output stage and overload-protection description support conventional feedback networks, while the internal compensation simplifies many voltage-feedback configurations. The design must still account for closed-loop gain, output swing, load, stability, and the time required to slew larger signals. The verified 36 V maximum rating is a constraint to observe, not a complete operating specification, so verify supply and common-mode conditions from the manufacturer datasheet.
Được đề xuất
Audio and Communications Support
The LM248N may be used in general audio or communications support circuits when the signal bandwidth is modest and the operating point satisfies the device’s electrical limits. Its 1 MHz gain-bandwidth product and 0.5 V/µs slew rate are concrete parameters for preliminary bandwidth and large-signal calculations. The quad package can provide separate gain, buffering, or filtering channels for a compact analog board. Designers should verify output swing into the intended load, input common-mode range, noise, distortion, supply configuration, and stability in the complete signal path before selecting it for a high-performance audio role.
Được đề xuất
Power-Supply Monitoring and Conditioning
The LM248N can be used to amplify, compare, and buffer low-bandwidth power-supply monitoring signals, provided the monitored voltage and current sensing signals remain within the verified common-mode and output limits. Its independent channels can monitor multiple rails or provide a buffered reference path. The 36 V maximum supply rating is relevant to higher-voltage industrial systems, but it should not be interpreted as permission to place arbitrary signals at that voltage on the inputs. Include input attenuation, filtering, and protection where needed, and verify thermal and supply conditions in the manufacturer documentation.
Được đề xuất
Active Filtering and Analog Processing
The LM248N is suitable for basic active-filter and analog-processing functions where the selected closed-loop bandwidth remains below the verified 1 MHz gain-bandwidth product. Four independent channels allow a cascade or parallel implementation of first- and second-order sections, while the internally compensated architecture supports many conventional feedback arrangements. Filter design must account for op-amp gain-bandwidth limits, slew rate, noise gain, component tolerances, and load capacitance. The supplied data does not specify exact stability limits or output capability, so simulation against the manufacturer model is recommended before finalizing a precision filter.
Được đề xuất
Industrial Control Interfaces
The LM248N can support low-bandwidth industrial control and interface circuits where multiple analog functions must be grouped in a through-hole package. Its four independent channels can handle gain stages, buffer stages, and simple active filtering while the 14-pin PDIP simplifies through-hole assembly and inspection. The -25°C to 85°C verified operating range covers many commercial and industrial environments, but the exact electrical limits must still be checked against the application’s supply, noise, temperature, and reliability requirements. Add input and output protection where transients or miswiring are possible.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho LM248N — 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 | LM348N |
|---|---|---|
| Package | 14-pin PDIP | 14-pin PDIP - same package |
| Brand | Texas Instruments | Texas Instruments |
| Number of Amplifier Channels | 4 | 4 |
Bảo phân biệt quan trọng
- Four independent amplifier channels in one package (vsLM348N)
- Verified 1 MHz gain-bandwidth product (vsLM348N)
- Verified -25°C to 85°C operating range (vsLM348N)
Ghi chú thiết kế
Use a through-hole footprint that matches the verified 14-pin PDIP package and verify pin numbering against the manufacturer datasheet before fabrication. Keep each amplifier channel’s feedback resistors close to the relevant package pins to reduce parasitic feedback and high-frequency instability. Place supply bypass capacitors near the package power pins, and route ground returns directly to the amplifier ground pins rather than through long shared paths.
Do not treat the verified 36 V maximum supply rating as the complete operating range. Check the LM248N datasheet for allowed supply configurations, input common-mode limits, output voltage swing, and absolute maximum ratings. In particular, verify that sensor signals, source impedances, and output loads remain inside the limits for the selected feedback gain. Missing specifications in the supplied search data require engineering follow-up rather than assumptions.
The verified 1 MHz gain-bandwidth product and 0.5 V/µs slew rate make the LM248N appropriate for many low-bandwidth analog stages, but closed-loop bandwidth also depends on noise gain and feedback topology. Avoid placing large capacitive loads directly at the output unless the load behavior is supported by the datasheet. For higher-frequency or high-capacitance nodes, buffer the output, add an isolation resistor where appropriate, and validate stability with simulation or measurements.
Thông tin tuân thủ
The supplied verified search data does not include material compliance declarations for LM248N. Obtain current manufacturer or authorized-distributor documentation before making a compliance determination.