LM358DG4 - Dual 700kHz Op Amp, 16V SOIC | Texas Instruments
부품 번호: LM358DG4 ✓ 활성LM358DG4 개요
An operational amplifier is an analog integrated circuit that amplifies the difference between two input voltages. A dual operational amplifier combines two amplifier channels in one package, reducing board area when a design needs two independent gain stages or one amplifier can be reserved as a buffer. Within the broader hierarchy, the LM358 belongs to the operational amplifier, linear amplifier, and analog signal-conditioning IC categories.
The LM358DG4's 700 kHz gain-bandwidth product supports signal paths that do not require high-frequency specialized amplifiers. Its 0.3 V/us slew rate defines how quickly the output can follow large voltage changes. The two amplifier circuits share the same 8-SOIC package and are identified as a general-purpose amplifier type in the product listing.
The SOIC-8 format is a surface-mount package with gull-wing leads on the package sides. It is larger than modern compact packages but remains widely supported by standard PCB assembly equipment. Using one dual amplifier instead of two separate single-channel devices can reduce component count, simplify routing, and conserve board area where both channels perform similar signal-conditioning functions.
Typical applications include low-frequency sensor conditioning, buffered analog inputs, active filtering, comparator-style threshold functions, and general instrumentation. The LM358DG4 is also suitable for educational and prototype circuits where a conventional dual operational amplifier is required without specialized low-noise, high-speed, or rail-to-rail performance.
Designers should verify input common-mode range, output swing, input bias current, supply-current behavior, and stability requirements against the manufacturer datasheet for the intended operating conditions. Decoupling capacitors should be placed close to the supply pins, and unused amplifier inputs must be configured so they do not float. The SOIC-8 footprint and pin arrangement should be checked against the selected board layout before substitution.
This product data consolidates the verified device identity, package, channel count, bandwidth, slew-rate, supply-voltage, and cross-reference information. It also adds application guidance, side-by-side parameter coverage, and practical design notes to help engineers evaluate the LM358DG4 for analog signal-conditioning designs.
드롭인 대체품: LM358DG4 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: LM358DG4 (동일 폼 팩터 및 풋프린트) — 차이점: Mounting Type, Package.
LM358N
✅ 드롭인가격 문의
데이터시트 보기 →RC4558
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
SGMI8358
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TP358
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
BP358
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
NSMOP-358
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
LM358DG4 최대 정격 & 전기적 특성
| Amplifier Type | General Purpose |
| Number of Circuits | 2 circuits |
| Gain-Bandwidth Product | 700 kHz |
| Slew Rate | 0.3 V/us |
| Maximum Total Supply Voltage | 16 V |
| 패키지 | 8-SOIC |
| Package Width | 3.90 mm |
| Package Body Length | 0.154 inch |
| Shipping Packaging | Tube |
| 실장 유형 | Surface Mount |
| 핀 수 | 8 pins |
LM358DG4 0.154 inch 핀 구성 가이드
LM358DG4(0.154 inch 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: LM358DG4.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
LM358DG4 적합 용도: 6 애플리케이션s: Industrial Sensor Signal Conditioning, Active Audio and Control Filtering, Battery-Powered Analog Monitoring, Communications Interface Buffering, Test and Measurement Front Ends, Educational and Prototype Circuits.
Industrial Sensor Signal Conditioning
The LM358DG4 is suitable for conditioning low-frequency sensor outputs when the design requires two general-purpose amplifier channels in an 8-SOIC package. Its 700 kHz gain-bandwidth product handles common analog instrumentation signals, while the 0.3 V/us slew rate provides useful response for gradual waveform changes. One channel can amplify or shift a sensor signal, and the second can buffer the result before conversion. The 16 V maximum total supply rating permits operation from conventional industrial-style rails, but the designer must verify common-mode and output-swing limits for the selected gain configuration.
추천
Active Audio and Control Filtering
The LM358DG4 can implement active low-frequency filters for audio, control, or instrumentation blocks where a 700 kHz bandwidth is sufficient. Its two amplifier circuits allow a second-order active filter to be followed by a buffer stage without using two separate packages. The 0.3 V/us slew rate helps preserve low-frequency waveform shape, although high-frequency audio and precision filter applications may require a wider-bandwidth or lower-distortion device. Component tolerances and the manufacturer's recommended stability network should govern the achievable response.
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Battery-Powered Analog Monitoring
The LM358DG4 is appropriate for low-to-moderate-speed analog monitoring circuits that use two amplifier channels and do not require rail-to-rail operation. Its 700 kHz gain-bandwidth product is more than adequate for many battery-derived sensor signals, and the dual configuration can reduce component count. The 16 V maximum total supply voltage allows connection to protected supplies below that limit. Because the exact quiescent current is not stated in the verified listing, battery-life calculations must use the manufacturer datasheet and should include regulator, divider, and sensor standby losses.
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Communications Interface Buffering
The LM358DG4 can serve as a general-purpose interface buffer or gain stage in communications equipment when signal bandwidth remains below its 700 kHz gain-bandwidth product. The two channels can support transmit-side conditioning and receive-side buffering in a compact 8-SOIC footprint. The 0.3 V/us slew rate suits slow control or low-frequency data signals, but it is not intended for high-speed digital lines or demanding edge-rate networks. Input protection, logic-level compatibility, and the amplifier's actual input and output ranges must be checked before insertion into an interface chain.
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Test and Measurement Front Ends
The LM358DG4 can provide gain and buffering in general-purpose test equipment front ends where signals change at modest rates. The dual channel arrangement supports separate buffering of a measured quantity and a reference or feedback path, while the 700 kHz bandwidth accommodates many low-frequency measurements. The 16 V maximum supply rating is suitable for higher-voltage instrumentation stages when protected and properly referenced. For precision measurement, verify input offset, bias current, noise, drift, and common-mode performance in the manufacturer datasheet because the basic device description does not establish laboratory-grade accuracy.
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Educational and Prototype Circuits
The LM358DG4 is a practical choice for educational prototypes, laboratory exercises, and proof-of-concept circuits that require a conventional dual general-purpose amplifier. Two amplifier sections in one 8-SOIC package simplify breadboard or perforated-board assembly and provide enough bandwidth for common waveform, comparator-style, and control experiments. The 700 kHz gain-bandwidth product and 0.3 V/us slew rate cover many low-frequency teaching circuits. Because LM358-family devices have specific input and output limits, students should verify the supply arrangement and signal excursions before applying signals near the rails.
추천
추천 제품 요약
엔지니어링 참조 데이터: LM358DG4 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | LM358N | RC4558 | SGMI8358 | TP358 |
|---|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Texas Instruments | Texas Instruments | YAGEO | SGMC (Sagna Microelectronics) | 3PEAK |
| Number of Pins | 8 | 8 | 8 | 8 | 8 |
주요 차별점
- Provides two general-purpose amplifier channels in one package (vs MCP601-E/ST)
- Uses a recognizable TI dual general-purpose amplifier family (vs SGMI8358)
- Supports two independent 8-SOIC amplifier channels (vs TLV2402ID)
설계 노트
Place the supply bypass capacitor directly between the supply and ground pins of the 8-SOIC, with the shortest practical ground return. Keep the two input and output routes away from switching nodes and high-current return paths. Confirm the manufacturer land pattern, lead pitch, and pin-1 orientation before routing because a mirrored SOIC footprint can create a functional but visually subtle assembly error.
Do not allow either input to float. If a channel is unused, connect it to a defined common-mode point in a configuration that will not interfere with the active channel. Also observe the 16 V maximum total supply rating and verify the actual input common-mode range and output swing in the manufacturer datasheet; the nominal supply limit alone does not mean the output can reach either rail.
For a 700 kHz gain-bandwidth product, use closed-loop gain and phase-margin guidance from the manufacturer when selecting feedback components. Keep feedback traces short, minimize parasitic capacitance around high-impedance inputs, and add a nearby reference-ground return for sensitive signals. If the circuit must preserve fast edges or handle high-order filtering, use a higher-bandwidth amplifier rather than assuming the 0.3 V/us slew rate is adequate.
Calculate amplifier power dissipation from the actual supply voltage, output voltage, load current, and quiescent current in the manufacturer datasheet. Although the device supports a maximum total supply voltage of 16 V, that rating does not imply that every operating point is safe for the surrounding circuit. Maintain the required bypass capacitance and account for source impedance at the unused amplifier inputs before energizing the board.
규정 준수 정보
The verified product information does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. The LM358DG4 is an operational amplifier rather than a power semiconductor, so SOA is not applicable.
