LM324J - Quad 32 V 1 MHz Op Amp | Texas Instruments
부품 번호: LM324J ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $19.8825 | $19.88 |
| 10 | $19.8825 | $198.83 |
| 100 | $19.8825 | $1,988.25 |
| 500 | $19.8825 | $9,941.25 |
| 1,000 | $19.8825 | $19,882.50 |
LM324J 개요
An operational amplifier is an active analog component that uses high open-loop gain and negative feedback to amplify the difference between two input signals. In the broader electronics hierarchy, an op amp belongs to amplifier ICs and analog signal-chain devices. The LM324 family supports common general-purpose tasks including voltage buffering, summing, comparison, filtering, transducer conditioning, and gain stages, provided the designer observes its supply, input, output, and stability limits.
Verified distributor information identifies the LM324J as a standard, general-purpose, four-circuit amplifier in a 14-CDIP package. The Mouser listing further identifies it as a military quad operational amplifier with 32 V operation and 1 MHz bandwidth. Those confirmed points establish the device’s most important selection criteria: four integrated channels, wide single-supply capability, roughly 1 MHz bandwidth, and a through-hole ceramic DIP footprint for higher-temperature or ruggedized legacy-style assemblies.
Each amplifier shares the same positive supply, negative supply, and ground pins on the 14-pin package. The common architecture saves board area and reduces package count compared with four separate single op-amp ICs. It also makes rail planning and decoupling straightforward: the designer must ensure that all four channels remain within their electrical limits simultaneously and that power-supply bypass capacitors are placed close to the package supply pins.
Typical uses include industrial control interfaces, sensor signal conditioning, low-frequency active filters, audio preamplification, instrumentation, power-supply feedback, and general mixed-signal embedded systems. The 1 MHz bandwidth favors low- to moderate-frequency signals rather than high-speed video, RF, or precision signal-path work. For those applications, verify exact gain-bandwidth, slew-rate, input-offset, output-current, and temperature limits against the official LM324 manufacturer documentation before production release.
The principal design consideration is ensuring adequate output-voltage headroom and stability at the selected supply voltage, load, and gain. Because the verified excerpts do not publish exact capacitor values, common-mode limits, output-current ratings, or full pin names, those details remain deliberately unstated rather than guessed. This page combines verified sourcing data, package information, application guidance, and a conservative interpretation of the LM324J’s general-purpose role.
Its differentiation is practical rather than headline performance: one 14-CDIP package supplies four general-purpose amplifier channels, while the 32 V and 1 MHz figures cover common industrial and embedded signal-conditioning needs. For an existing 14-pin LM324-family footprint, engineers should still compare the exact suffix, grade, pinout, and operating-temperature limits before approving a substitute.
드롭인 대체품: LM324J — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: LM324J (동일 폼 팩터 및 풋프린트) — 차이점: Package, Mounting Type, Amplifier Type, Gain Bandwidth Product, Packaging.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
LM124J
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
LM324J
✅ 드롭인✓ 재고 있음
$19.8825 / 개
데이터시트 보기 →LM324N
✅ 드롭인✓ 재고 있음
가격 문의
데이터시트 보기 →LM324ADR2G
✅ 드롭인✓ 재고 있음
$0.18 / 개
데이터시트 보기 →LM324BAIDR
✅ 드롭인✓ 재고 있음
$0.15 / 개
데이터시트 보기 →LM324J 최대 정격 & 전기적 특성
| Amplifier Type | General-purpose operational amplifier |
| Number of Amplifiers | 4 channels |
| Maximum Supply Voltage | 32 V |
| Gain-Bandwidth Product | 1 MHz |
| Supply Configuration | Single-supply operation |
| Power Class | Low power |
| Device Type | Military quad operational amplifier |
| 패키지 | 14-CDIP |
| 핀 수 | 14 pins |
| 실장 유형 | Through-hole |
| Package Material | Ceramic |
LM324J ceramic 핀 구성 가이드
LM324J(ceramic 패키지)의 핀 구성입니다. 이 아날로그 부품에는 입력, 출력, 전원 공급 핀이 있습니다. 오프셋 널, 보상, 인에이블 핀 구성은 제조사 데이터시트를 참조하십시오. 신호 컨디셔닝 및 증폭기 회로에 이상적입니다.
다음에 대한 상세 핀아웃 데이터 없음: LM324J.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
LM324J 적합 용도: 6 애플리케이션s: Industrial Sensor Signal Conditioning, Low-Frequency Active Filtering, Embedded Control Interfaces, Audio Preamplification, Power-Supply Feedback and Monitoring, Test and Measurement Buffering.
Industrial Sensor Signal Conditioning
The LM324J fits four-channel sensor conditioning because it combines four general-purpose amplifiers, 32 V maximum supply capability, and a 1 MHz gain-bandwidth product in one 14-CDIP package. Each amplifier can support a low-frequency gain or impedance-conversion stage, such as buffering a sensor before an ADC. The ceramic through-hole package is also appropriate for assemblies that value ruggedized insertion and serviceability. Designers should verify exact input common-mode range, output swing, offset, and bias-current limits at the selected supply voltage before using the device near a rail.
추천
Low-Frequency Active Filtering
The four integrated amplifiers in the LM324J allow a compact active-filter implementation using multiple feedback or Sallen-Key stages without requiring four separate packages. Its verified 1 MHz gain-bandwidth product is suitable for many audio-band and low-frequency control signals, while the 32 V maximum supply supports higher-voltage analog systems. Stability, gain, component tolerances, and permissible output loading determine whether each topology is suitable. Verify the exact slew rate and common-mode range before using very small resistor values or signals near the supply rails.
추천
Embedded Control Interfaces
LM324J is useful when a controller board needs several independent general-purpose analog channels for actuator drive, feedback comparison, level conditioning, or error amplification. Its four-amplifier arrangement reduces package count, and the verified single-supply operation simplifies rail planning for embedded systems. The 1 MHz bandwidth is usually more than adequate for slow control loops but does not imply precision or high-speed performance. Validate output-current demand, saturation recovery, input offset, supply-current budget, and temperature drift for the intended industrial or control environment.
추천
Audio Preamplification
The LM324J can serve as a general-purpose audio preamplifier or intermediate buffer because it provides four channels, single-supply operation, and a verified 1 MHz bandwidth. The wide 32 V maximum supply rating accommodates many conventional audio and control-voltage environments, although the actual signal range is constrained by common-mode and output-swing limits. Use negative feedback to set gain and keep the signal within the linear operating region. For high-fidelity or low-noise audio, compare the LM324 input-noise and distortion specifications with a dedicated audio amplifier.
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Power-Supply Feedback and Monitoring
A quad op amp provides flexible space for error amplification, output sensing, fault comparison, and auxiliary signal conditioning within a power-control board. LM324J is attractive when the design operates from a single supply up to the verified 32 V maximum and needs through-hole serviceability. Its 1 MHz bandwidth is generally adequate for slow regulation and monitoring loops, but loop compensation and control-loop stability require separate analysis. Check output-current capability and saturation behavior against the load, particularly when driving a transistor or supervisory stage rather than only a high-impedance feedback node.
추천
Test and Measurement Buffering
The LM324J can buffer instrument inputs, amplify differential sensor signals, and form intermediate gain stages in a general-purpose measurement system. Four channels permit reuse across multiple test points, while the 1 MHz bandwidth covers many low-speed instrumentation signals. Input bias current, offset voltage, noise, common-mode range, and output accuracy are more important than headline bandwidth when driving a precision ADC. Confirm those parameters from the official datasheet, use a clean low-noise supply, and keep high-impedance input routing short and guarded against leakage.
추천
추천 제품 요약
엔지니어링 참조 데이터: LM324J — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | LM124J | LM324J | LM324N | LM324A | LM324B |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Amplifiers | 4 circuits | 4 channels | 4 circuits | 4 circuits | 4 circuits | 4 circuits |
주요 차별점
- Four-channel integration in a 14-CDIP package (vs LM124J)
- Established LM324 performance target (vs LM124J)
- Single-supply general-purpose operation (vs LM324N)
설계 노트
Place a ceramic bypass capacitor close to the LM324J positive-supply and ground pins, and add local bulk decoupling where the board supply is shared by other analog and digital loads. The verified data establishes single-supply operation and a 32 V maximum rating but does not specify a required capacitance. Select the value from the official datasheet and board-level power-integrity analysis, then verify the capacitor’s effective capacitance at the actual DC bias and temperature.
Route each amplifier’s feedback network close to its corresponding package pins and avoid sharing long, high-impedance paths between channels. Keep the 14-CDIP leads on a through-hole footprint consistent with the exact J package, maintain adequate clearance from nearby heat sources, and return analog ground through a low-impedance path. Although the LM324J has four channels in one package, supply and ground pins are shared, so simultaneous high-current output activity can couple through common supply impedance.
Do not assume that a 32 V maximum supply rating permits the input or output to swing rail-to-rail. Verify common-mode input range, output swing, output-current capability, and stability against the manufacturer datasheet for the selected supply and load. Also avoid treating LM358, LM2904, or similar quad or dual amplifier families as automatic replacements: same channel count is insufficient unless the package, pinout, and electrical limits all match the existing PCB.
규정 준수 정보
The verified excerpts identify LM324J as a military quad operational amplifier but do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. Compliance status is therefore recorded as unknown rather than inferred.
