LM324N - Low-Power Quad Op Amp, 14-PDIP | Texas Instruments
MPN: LM324N ✓ Hoạt độngLM324N Tóm tắt
An operational amplifier is a high-gain analog building block used to amplify, buffer, compare, or condition signals. The LM324 belongs to the broader hierarchy of operational amplifier, analog amplifier, linear amplifier, and semiconductor. Its internal frequency compensation removes the need for an external compensation network in many conventional closed-loop configurations, simplifying general-purpose analog designs.
The verified product information establishes four amplifier circuits and a 14-pin PDIP package. The low-power designation reflects its use in low-voltage, low-current analog systems rather than high-performance precision signal chains. Because all four channels are housed in one through-hole package, a design can allocate the amplifiers across independent sensor channels, buffers, filters, or control loops while conserving board area.
The manufacturer identifies the LM324-N as suitable for transducer amplifiers, DC gain blocks, and conventional op-amp circuits. These uses benefit from the device’s integrated quad-channel arrangement and single-supply operation. The verified snippets do not provide detailed electrical limits such as input-offset voltage, gain-bandwidth product, output-current capability, common-mode range, noise density, or temperature range, so those values are not inferred here.
Typical implementation requires attention to supply bypassing, input common-mode limits, output swing, stability, and the relationship between the selected feedback network and closed-loop gain. Because this is a through-hole PDIP device, lead spacing and insertion orientation should be checked against the PCB footprint and the manufacturer pinout.
This page consolidates the verified manufacturer and distributor references, identifies the application fit of the LM324N, and clearly separates confirmed data from parameters that require consultation of the exact manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho LM324N — 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 LM324N (cùng hình factor và footprint) — khác nhau ở Package, Input Offset Voltage, Slew Rate, Supply Configuration, Mounting Type.
LM324ADR2G
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →LMC660
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LM348N
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LM324DT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →LM324ADR2G
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →LM324N Tỷ lệ tối đa & tính chất điện
| Amplifier Count | 4 independent amplifiers |
| Product Type | Low-power quad operational amplifier |
| Amplifier Class | Standard general-purpose amplifier |
| Architecture | High-gain, internally frequency-compensated amplifiers |
| Supply Configuration | Single-supply capable |
| Hộp | 14-pin PDIP |
| Kiểu lắp đặt | Through-hole |
| Frequency Compensation | Internal |
Hướng dẫn cấu hình chân LM324N 14-pin pdip
Cấu hình chân cho LM324N (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 LM324N.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
LM324N phù hợp cho 6 Áp dụngs: Transducer Signal Conditioning, DC Gain Blocks, Sensor Interface Buffers, Audio Preamplifier Stages, Industrial Control Loops, Low-Frequency Filter and Integrator Circuits.
Transducer Signal Conditioning
The LM324N is a practical choice for low-frequency transducer amplification because Texas Instruments identifies transducer amplifiers as a target application. Its four independent channels can condition multiple sensor-related signals in one 14-pin PDIP package. Each channel can be configured with conventional feedback networks for non-inverting or inverting amplification, subject to the exact datasheet’s gain, bandwidth, input-range, and output-swing limits. The verified data does not provide offset or noise values, so sensor accuracy should be validated with the selected resistor and reference design.
Được đề xuất
DC Gain Blocks
The LM324N fits DC gain-block designs because it provides four independent, high-gain, internally frequency-compensated amplifiers in one through-hole package. Texas Instruments explicitly lists DC gain blocks as a suitable application. The device can support several low-frequency gain stages when the selected closed-loop gain remains compatible with its internal compensation and the output stays within the permitted swing. Verify supply range, input common-mode limits, offset, and load capability from the exact LM324-N datasheet.
Được đề xuất
Sensor Interface Buffers
The four-channel architecture makes the LM324N useful for buffering sensor outputs or intermediary signals where a single package provides more functional density than a discrete single amplifier. Internal frequency compensation simplifies conventional closed-loop buffer and amplifier configurations, while single-supply operation can reduce system complexity. The verified snippets do not specify input bias current, noise, common-mode range, or slew rate, so high-impedance sources and precision measurements require datasheet confirmation before release.
Được đề xuất
Audio Preamplifier Stages
The LM324N can be considered for conventional low-frequency audio preamplifier or control stages when its exact gain, bandwidth, noise, and output-drive specifications meet the signal-chain requirements. The device is a low-power general-purpose quad amplifier, allowing four channels to be allocated within one package. Because the verified data does not provide audio-specific noise or bandwidth figures, do not assume LM324N performance for a high-fidelity path without checking the manufacturer datasheet and evaluating THD, headroom, and stability.
Được đề xuất
Industrial Control Loops
The LM324N’s four independent channels can serve as low-frequency control amplifiers, integrators, comparators, or general analog building blocks in industrial control electronics. Texas Instruments’ stated use in conventional op-amp circuits supports this role. Single-supply capability can be helpful when the controller shares ground with sensors, but industrial designs must verify supply tolerance, common-mode range, output swing, temperature behavior, and stability. The verified snippets do not confirm industrial or automotive qualification.
Được đề xuất
Low-Frequency Filter and Integrator Circuits
The internally frequency-compensated LM324N channels can be used in conventional active-filter and integrator circuits when the loop gain and signal bandwidth are appropriate for the device. Internal compensation reduces the need for external compensation in standard feedback networks, helping keep the design compact. The verified material does not provide the gain-bandwidth product, slew rate, or noise specifications, so resistor and capacitor values must be calculated from the exact manufacturer curves rather than from generic LM324 assumptions.
Được đề xuất
Dữ liệu tham khảo kỹ thuật cho LM324N — 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 | LM324AD | LMC660 | LM348N | LM324 | LM324A |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Analog Devices | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 14-pin PDIP | 14-pin PDIP - exact package requires verification | 14-pin PDIP - exact package requires verification | 14-pin PDIP | 14-pin PDIP - exact package requires verification | 14-pin PDIP - exact package requires verification |
Bảo phân biệt quan trọng
- Four-channel integration in one 14-pin PDIP package (vsSingle-amplifier alternatives)
- Manufacturer-identified transducer and DC-gain use cases (vsLM324AD)
- Internal frequency compensation (vsLM348N)
- Single-supply general-purpose operation (vsLMC660)
Ghi chú thiết kế
Use a local supply bypass capacitor at the LM324N power pins and keep the ground return short and low impedance. The supplied verified snippets do not state the permitted supply voltage, supply current, or recommended capacitor values, so those values must come from the exact manufacturer datasheet. Confirm that the input signal, output swing, and load remain inside the device limits at the selected supply.
Keep input, feedback, and output traces short and route them away from switching nodes and high-current return paths. Because LM324N is verified as a 14-pin PDIP, check the physical footprint and pin numbering against the exact Texas Instruments datasheet before layout release. The verified data does not include mechanical dimensions, so do not derive land patterns from a generic DIP drawing without checking the variant.
Do not treat the LM324 family name as a guarantee that every LM324 variant has identical electrical limits or package pinout. In particular, verify supply range, common-mode input range, output swing, offset, bandwidth, slew rate, and temperature grade for LM324AD, LMC660, LM348N, LM324, or LM324A before approving a substitution. The supplied alternatives are candidates based on search references, not complete manufacturer-verified drop-in approvals.
Thông tin tuân thủ
The supplied verified snippets do not provide RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive-qualification data. Compliance fields remain unknown rather than assumed. The product is an analog integrated circuit, but AEC-Q100 qualification is not established by the supplied data.