LT1079MJ - Micropower Quad Op Amp | Analog Devices | Industrial
부품 번호: LT1079MJ ✓ 활성LT1079MJ 개요
An operational amplifier is a voltage-controlled differential amplifier whose high open-loop gain enables closed-loop functions such as signal amplification, buffering, summation, subtraction, filtering, and impedance conversion. The quad-amplifier form belongs to the operational-amplifier hierarchy within analog and linear integrated circuits, while the micropower and single-supply characteristics place it specifically in the low-power precision amplifier category.
The LT1079MJ's four-circuit architecture reduces component count and board area compared with four separate dual or single amplifier packages. Its 5 V single-supply optimization supports systems in which the signal and output ranges are referenced to a positive supply rather than a split supply. This makes the device relevant to industrial instrumentation, low-voltage sensor interfaces, portable measurement equipment, and other compact analog circuits.
Analog Devices describes the LT1079 as a micropower quad operational amplifier for single-supply, precision applications. The verified manufacturer information does not provide the complete electrical limits, offset and drift values, input-bias-current figures, noise-density figures, slew rate, gain-bandwidth product, output-current capability, or absolute maximum ratings, so those values should be confirmed in the manufacturer datasheet before final circuit sign-off.
Typical uses include amplifying the outputs of low-level sensors, buffering precision converters, implementing active filters, conditioning strain-gauge or bridge signals, and providing multiple analog channels within battery-powered or space-constrained equipment. The quad configuration is particularly useful when several signals require similar amplification, buffering, or filtering functions.
A primary design consideration is the interaction between power-supply voltage, input common-mode range, output swing, input bias current, and stability. Because the verified data establishes optimization for 5 V single-supply operation but does not publish the complete operating envelopes, engineers should verify signal amplitudes, load conditions, and external compensation requirements against the manufacturer datasheet before using the LT1079MJ at other supply voltages.
This page consolidates the verified Analog Devices product information, distributor package identification, purchasing data, and practical selection considerations. It also documents the absence of verified drop-in substitutes and separates known device facts from parameters that require confirmation in the original manufacturer datasheet.
드롭인 대체품: LT1079MJ — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청LT1079MJ 최대 정격 & 전기적 특성
| Product Type | Precision operational amplifier |
| Amplifier Configuration | Quad amplifier, 4 circuits |
| Power Class | Micropower |
| Supply Configuration | Single supply |
| Optimized Supply Voltage | 5 V |
| Package Type | 14-pin CERDIP |
| Total Pin Count | 14 pins |
| 실장 유형 | Through-hole |
| Application Classification | Standard general-purpose amplifier |
| Signal Type | Analog |
| Input Type | Differential input |
| 출력 유형 | Single-ended output |
| RoHS 상태 | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | not_applicable |
LT1079MJ 14-pin cerdip 핀 구성 가이드
LT1079MJ(14-pin cerdip 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: LT1079MJ.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
LT1079MJ 적합 용도: 6 애플리케이션s: Low-Voltage Industrial Sensor Conditioning, Battery-Powered Measurement Modules, Precision Data-Acquisition Front Ends, Active Filtering and Signal Conditioning, Portable Instrumentation, Precision Bridge and Transducer Interfaces.
Low-Voltage Industrial Sensor Conditioning
The LT1079MJ fits industrial sensor-conditioning modules that operate from a 5 V single supply and need several amplifier channels on one board. Its four-circuit architecture can support differential sensor amplification, input buffering, gain adjustment, and active filtering without requiring four separate amplifier packages. According to the Analog Devices product page, the LT1079 is optimized for 5 V single-supply operation, which helps align the amplifier architecture with low-voltage factory instrumentation. The benefit is lower component count and simpler routing, although the designer must verify the input common-mode range, output swing, offset, noise, stability, and operating-temperature limits in the manufacturer datasheet before connecting sensors directly to the amplifier inputs.
추천
Battery-Powered Measurement Modules
The LT1079MJ is relevant to compact battery-powered measurement modules because it is classified as a micropower, precision, four-channel operational amplifier and is optimized for 5 V single-supply operation. Four available amplifier circuits can be allocated to sensor excitation, signal scaling, filtering, and output buffering. This can reduce board area compared with separate single or dual amplifier packages. The key engineering trade-off is that micropower operation must be evaluated against the complete input bias current, supply current, noise, and bandwidth figures, which are not included in the supplied verified results. Designers should also confirm whether the measured signal amplitude can be amplified without exceeding the output range supported by the data sheet at the selected supply voltage.
추천
Precision Data-Acquisition Front Ends
The LT1079MJ can be used at the analog front end of a multichannel data-acquisition system where each sensor channel requires buffering before conversion. Its four amplifier circuits provide a practical way to condition four low-level signals while operating from one 5 V supply. In a typical topology, each channel could include an input buffer, gain stage, or active low-pass filter, with outputs routed toward an ADC or comparator. The quad package helps consolidate routing and reduce PCB area, but the verified data does not establish settling time, slew rate, noise density, input offset, or common-mode limits. Those values must be checked for the required sample rate, sensor impedance, and signal bandwidth before the LT1079MJ is approved.
추천
Active Filtering and Signal Conditioning
The LT1079MJ's four amplifier circuits can implement multiple active-filter or signal-conditioning stages in a compact analog subsystem. Possible uses include unity-gain buffers, non-inverting gain blocks, difference amplifiers, and repeated low-pass sections. Its optimization for a 5 V single supply is useful when the system already derives a regulated 5 V rail and the signal must remain above ground. The four-channel arrangement allows a designer to preserve similar conditioning characteristics across several channels. However, the supplied verified data does not confirm gain-bandwidth product, gain error, phase margin, or output drive capability. These specifications determine whether the amplifier can support the intended filter order, operating frequency, capacitive loading, and precision requirements, so each network must be reviewed against the original datasheet.
추천
Portable Instrumentation
The LT1079MJ is applicable to portable analytical and test instruments where four analog channels must operate from a low-voltage supply without requiring a large number of discrete packages. The LT1079's micropower and precision positioning, together with its optimization for 5 V single-supply operation, supports compact battery-operated signal paths. Its quad configuration can combine input impedance conversion, gain, active filtering, and output buffering within the same 14-pin CERDIP footprint. This is especially relevant to legacy through-hole instrumentation where a ceramic DIP package may simplify repair or mechanical integration. Before selecting it, engineers should confirm supply-current demand, input bias behavior with high-impedance sensors, output capability, temperature range, and electromagnetic performance using the complete manufacturer documentation and application circuit guidance.
추천
Precision Bridge and Transducer Interfaces
The LT1079MJ can serve as the active element in bridge or transducer interface circuits when the sensor output is small and the system uses a 5 V supply. Four amplifier channels allow the implementation of instrumentation-style gain stages, difference channels, and support functions without multiplying the number of packages. The quad organization is particularly helpful when several resistive bridges must be measured with consistent conditioning topology. Correct use still depends on the missing data-sheet parameters: input bias current affects high-resistance sensors, input offset and drift establish baseline accuracy, common-mode range determines allowable bridge excitation, and output swing establishes available measurement span. Engineers should also account for sensor excitation polarity, ground references, resistor matching, and noise reduction around the high-impedance nodes.
추천
추천 제품 요약
엔지니어링 참조 데이터: LT1079MJ — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 |
|---|---|
| Brand | Analog Devices |
| Package | 14-pin CERDIP |
| Amplifier Configuration | Quad amplifier, 4 circuits |
| Power Class | Micropower |
| Supply Configuration | Single supply |
| Optimized Supply Voltage | 5 V |
| Application Classification | Standard general-purpose amplifier |
| Mounting Type | Through-hole |
설계 노트
Do not treat a generic four-amplifier package as a direct substitute for the LT1079MJ. The verified target identity includes a 14-pin CERDIP package, micropower positioning, precision application, and optimization for 5 V single-supply operation. Before replacing the device, confirm the physical lead pattern, terminal assignments, supply range, input common-mode range, output swing, offset, drift, noise, bandwidth, stability, and operating-temperature rating. A PCB-compatible footprint alone does not establish electrical drop-in compatibility.
Design the power path around the LT1079 family's verified 5 V single-supply optimization, while treating the complete supply-current and allowable-voltage limits as [DATA_NEEDED: supply current and maximum supply voltage]. Check the amplifier's quiescent demand and load current against the source's budget, provide local bypass capacitance according to the manufacturer guidance, and verify startup behavior if the sensor system can begin operating before the 5 V rail is stable.
Keep each amplifier's high-impedance input node short and away from switching nodes, power inductors, and other high-current paths. For instrumentation bridges, maintain symmetry between differential signal routes where practical and ground only the appropriate sides of the circuit. The exact pin assignments are not present in the verified results, so use the manufacturer package drawing and pin table when placing decoupling and feedback components; do not infer pin numbers from a generic 14-pin DIP outline.
규정 준수 정보
The supplied verified data does not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. The -883 ordering information appears in a search result, but the verified material does not explicitly state AEC-Q100 qualification, so it is not claimed.
