LM2902KVQPWRQ1 - 26V Quad 1.2MHz Automotive Op Amp | TI
부품 번호: LM2902KVQPWRQ1 ✓ 활성LM2902KVQPWRQ1 개요
An operational amplifier, or op amp, is a voltage-controlled differential amplifier with very high open-loop gain. It compares two input voltages and drives its output toward the difference between them. Because the LM2902KVQPWRQ1 contains four independent, frequency-compensated amplifiers, one package can provide input buffering, sensor conditioning, voltage amplification, current sensing, and active filtering without requiring four separate devices. It supports single-supply operation and split-supply operation, subject to the device’s stated supply limits.
The principal advantages of this device are its high-voltage capability, automotive qualification, integrated four-channel architecture, and broad applicability in industrial and vehicle electronics. The 1.2 MHz bandwidth supports general-purpose signal conditioning rather than high-speed precision analog work. Its 2 mV input offset voltage is useful for applications where the input signal is sufficiently large to keep offset errors below the required accuracy. The four channels also allow consistent amplifier performance across multiple signal paths in the same system.
Typical applications include 12 V and 24 V automotive sensor interfaces, battery monitoring, pressure and temperature signal conditioning, current sensing, motor-control feedback networks, industrial control modules, and instrumentation buffers. The 14-pin TSSOP package is compact and suitable for high-density PCB layouts, but automotive designs should account for copper-area limitations, thermal dissipation, transient protection, and the need to keep sensitive input traces away from switching and power-conversion nodes.
When selecting a replacement, verify the exact channel count, package, supply rating, offset voltage, bandwidth, common-mode behavior, output-drive capability, automotive qualification, and operating-temperature grade. The LM2902KVQPWRQ1 is best suited to four-channel, general-purpose automotive and industrial designs where 26 V operation and AEC-Q100 qualification are more important than high precision or high speed. This page combines the manufacturer product information with practical comparison, replacement, and design guidance for engineers evaluating the device in an existing circuit.
드롭인 대체품: LM2902KVQPWRQ1 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: LM2902KVQPWRQ1 (동일 폼 팩터 및 풋프린트) — 차이점: Package.
LM2902KVQPWR
✅ 드롭인가격 문의
데이터시트 보기 →LM2902KVQPWRG4Q1
✅ 드롭인가격 문의
데이터시트 보기 →LM2902PWRG3
✅ 드롭인가격 문의
데이터시트 보기 →LM2903VQPWRQ1
✅ 드롭인가격 문의
데이터시트 보기 →LM2902KVQPWRQ1 최대 정격 & 전기적 특성
| Product Type | Quad general-purpose operational amplifier |
| Number of Amplifier Circuits | 4 circuits |
| 공급 전압 | Up to 26 V |
| Gain-Bandwidth Product | 1.2 MHz |
| Input Offset Voltage | 2 mV |
| Automotive Qualification | AEC-Q100 qualified |
| 패키지 | 14-pin TSSOP |
| 실장 유형 | Surface mount |
| Operating Supply Mode | Single supply or split supply |
| ESD Protection | Less than 500 V per MIL-STD-883, Method 3015 |
| Machine-Model ESD | 200 V, 200 pF |
| Configuration Control | Customer-specific configuration control can be supported |
| Major-Change Approval | Supported |
| 수명 주기 상태 | Active product family |
LM2902KVQPWRQ1 핀 구성
| 핀 1 | OUT A — Output of amplifier A |
| 핀 2 | IN- A — Inverting input of amplifier A |
| 핀 3 | IN+ A — Non-inverting input of amplifier A |
| 핀 4 | V- — Negative supply connection |
| 핀 5 | IN+ B — Non-inverting input of amplifier B |
| 핀 6 | IN- B — Inverting input of amplifier B |
| 핀 7 | OUT B — Output of amplifier B |
| 핀 8 | OUT C — Output of amplifier C |
| 핀 9 | IN- C — Inverting input of amplifier C |
| 핀 10 | IN+ C — Non-inverting input of amplifier C |
| 핀 11 | V+ — Positive supply connection |
| 핀 12 | IN+ D — Non-inverting input of amplifier D |
| 핀 13 | IN- D — Inverting input of amplifier D |
| 핀 14 | OUT D — Output of amplifier D |
일반적인 애플리케이션
LM2902KVQPWRQ1 적합 용도: 6 애플리케이션s: Automotive Sensor Conditioning, Battery Monitoring, Industrial Control and Instrumentation, Current Sensing, Motor-Control Feedback, Active Filtering and Signal Conditioning.
Automotive Sensor Conditioning
Use the LM2902KVQPWRQ1 to amplify and buffer signals from pressure, temperature, position, and level sensors in 12 V or 24 V vehicle systems. Its four independent channels allow several sensing paths to share one package, while the 26 V maximum supply rating provides useful headroom above typical automotive rails. The 2 mV offset and 1.2 MHz bandwidth suit moderate-accuracy general-purpose conditioning. External transient and ESD protection remains essential because automotive wiring can expose inputs to severe faults.
추천
Battery Monitoring
The LM2902KVQPWRQ1 can provide input buffering and gain stages for battery-pack voltage monitoring and protection modules. Four channels allow simultaneous conditioning of pack voltage, current-sense amplifier output, temperature, and auxiliary diagnostics. Its 26 V supply capability is compatible with many nominal 12 V or 24 V systems when the rails are properly protected. Design the signal path around the 2 mV offset specification and validate accuracy across temperature and the full battery operating range.
추천
Industrial Control and Instrumentation
Deploy the four channels of the LM2902KVQPWRQ1 for transducer amplification, current-sense output filtering, control-loop buffering, and analog signal conditioning in industrial equipment. The 14-pin TSSOP package supports compact, high-density control boards, while the 1.2 MHz bandwidth is suitable for many low-to-moderate frequency control signals. Ensure the selected feedback network remains stable, account for input offset in precision paths, and provide filtering where sensor noise or switching interference could otherwise affect the measurement.
추천
Current Sensing
Use an LM2902KVQPWRQ1 channel to amplify the small voltage generated by a shunt or current-sense amplifier, then use additional channels for filtering, thresholding, or diagnostics. The quad-channel architecture reduces the number of packages needed when several analog quantities must be processed close together. The 2 mV offset contributes to measurement error, so it should be included in the system error budget. PCB placement should keep high-current paths away from the amplifier inputs to minimize thermal offset and unwanted pickup.
추천
Motor-Control Feedback
The LM2902KVQPWRQ1 is appropriate for conditioning motor-current, position, and feedback signals in automotive or industrial motor-control modules. Its four channels can support multiple feedback paths while operating from a protected high-voltage rail. The 1.2 MHz bandwidth covers many slower control and position-feedback signals, but motor systems require careful grounding and transient protection. Keep high-switching-current loops separated from input traces and confirm that the output stage drives the selected load without instability.
추천
Active Filtering and Signal Conditioning
Implement low-frequency active filters, buffers, and gain stages with the LM2902KVQPWRQ1 when several analog channels require similar conditioning. The 1.2 MHz gain-bandwidth product supports common audio-band, sensor-band, and control-band networks, while four independent amplifiers provide flexibility in one TSSOP-14 package. Validate each filter against the op amp’s noise gain and stability behavior, and include offset and drift in precision measurements. Use local grounding and short feedback paths to reduce noise pickup.
추천
추천 제품 요약
엔지니어링 참조 데이터: LM2902KVQPWRQ1 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | LM2902KVQPWR | LM2902KVQPWRG4Q1 | LM2902PWR | LM2903VQPWRQ1 |
|---|---|---|---|---|---|
| Package | TSSOP-14 | TSSOP-14 | TSSOP-14 | TSSOP-14 | TSSOP-14 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Amplifier Channels | 4 | 4 | 4 | 4 | 4 |
| Product Family | LM2902-Q1 | LM2902KV | LM2902KV | LM2902 | LM2903-Q1 |
주요 차별점
- Automotive qualification is explicit in the ordering identity (vs LM2902PWR)
- Four channels in one compact package (vs LM2903VQPWRQ1)
- 26 V supply rating for vehicle and industrial rails (vs LM2902KVQPWR)
설계 노트
Do not treat the 26 V maximum supply rating as a complete automotive protection rating. Battery systems can experience reverse polarity, load dump, inductive spikes, and ESD events beyond ordinary supply limits. Add appropriate protection at the board boundary, verify the final rail against the absolute maximum limits, and confirm that signal inputs remain inside the common-mode range.
Place the TSSOP-14 footprint to minimize long analog input routes and keep high-current or switching nodes away from amplifier pins. Use a continuous ground reference under the device where practical, keep feedback traces short, and route sensitive inputs away from shunt resistors, motor phases, and regulators. Confirm land pattern, pin-1 orientation, and paste coverage against the manufacturer package drawing.
The four channels are independent, but shared supply and ground impedances can couple noise between them. Decouple the supply locally, provide a low-impedance return path for each channel, and use separate feedback networks when channels operate at different gains or frequencies. For active filters, check the selected noise gain against the 1.2 MHz gain-bandwidth product and validate stability on the assembled board.
TSSOP packages have limited copper area, so estimate worst-case dissipation from the actual supply voltage, output swing, load current, and quiescent current before deployment. Check the manufacturer’s thermal characteristics for the board and ambient conditions. Reduce dissipation with lower supply voltage, lower output swing, a larger copper pour, or thermal vias where the package and assembly process permit.
규정 준수 정보
Texas Instruments explicitly states that the LM2902-Q1 family is qualified for automotive use in accordance with AEC-Q100 specifications. Other compliance statuses were not established by the cited product information and remain unknown.
