LM2904AVQPWRQ1 - 26V, 700kHz Automotive Dual Op Amp | TI
부품 번호: LM2904AVQPWRQ1 ✓ 활성LM2904AVQPWRQ1 개요
An operational amplifier is an analog IC that provides high open-loop gain and signal amplification for sensors, control loops, filters, and signal-conditioning circuits. The LM2904-Q1 family belongs to the operational amplifier hierarchy, where each amplifier section provides voltage amplification, impedance buffering, and feedback-based signal conditioning within a wider analog or mixed-signal system.
Key characteristics include two amplifier circuits, a 700 kHz gain-bandwidth product, a 0.3 V/µs slew rate, a typical input offset voltage of 3 mV, and typical input bias current of 20 nA. The operating temperature range extends from -40°C to +125°C, supporting industrial and automotive environments where temperature and qualification requirements exceed those of ordinary general-purpose amplifiers.
The internally compensated architecture simplifies implementation of standard inverting, non-inverting, summing, and feedback amplifier circuits. A typical supply current is 500 µA per channel, while output current capability reaches 40 mA per channel. These characteristics make the device suitable for low-power analog signal conditioning where a 3 V minimum supply is required and the circuit must tolerate supply voltages up to 26 V.
Typical uses include sensor interfaces, actuator drivers, motor-control feedback networks, battery-powered instrumentation, industrial control loops, and automotive signal-conditioning modules. The wide supply range allows operation from single or split supplies, although the differential voltage between the supply rails must remain within the device limits.
Designers should verify output swing, input common-mode range, stability, and load capability across the complete supply and temperature range. Decoupling capacitors should be placed close to the supply pins, while feedback components and sensitive input routes should be kept away from switching nodes to reduce coupling and maintain low offset performance.
드롭인 대체품: LM2904AVQPWRQ1 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: LM2904AVQPWRQ1 (동일 폼 팩터 및 풋프린트) — 차이점: Amplifier Type, Automotive Qualification, Compensation, RoHS Status.
LM2904AVQPWR
✅ 드롭인 ⚠️ 사양 미검증가격 문의
데이터시트 보기 →LM2904AQPWRQ1
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
LM2904AQPWRG4Q1
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
LM2904BVPWRQ1
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
LM2904BAVPWRQ1
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
LM2904AVQPWRQ1 최대 정격 & 전기적 특성
| Amplifier Type | General-purpose operational amplifier |
| Number of Channels | 2 channels |
| Automotive Qualification | AEC-Q100 qualified |
| Maximum Supply Voltage | 26 V |
| Minimum Supply Voltage | 3 V |
| Gain-Bandwidth Product | 700 kHz |
| Slew Rate | 0.3 V/µs |
| Input Offset Voltage | 3 mV typical |
| Input Bias Current | 20 nA typical |
| 공급 전류 | 500 µA per channel typical |
| Output Current per Channel | 40 mA |
| 동작 온도 범위 | -40°C to +125°C |
| 패키지 | 8-pin TSSOP (PW) |
| 실장 유형 | Surface mount |
| Compensation | Internally frequency compensated |
| RoHS 상태 | RoHS-compliant |
| Lead-Free Status | Lead-free |
| Supply Configuration | Single or split supply |
| Product Qualification | Automotive-grade |
LM2904AVQPWRQ1 8-pin tssop (pw) 핀 구성 가이드
LM2904AVQPWRQ1(8-pin tssop (pw) 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: LM2904AVQPWRQ1.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
LM2904AVQPWRQ1 적합 용도: 6 애플리케이션s: Automotive Sensor Signal Conditioning, Industrial Control-Loop Amplification, Battery-Powered Instrumentation, Active Filtering and Signal Shaping, Motor and Actuator Feedback, Power-Supply Feedback and Monitoring.
Automotive Sensor Signal Conditioning
The LM2904AVQPWRQ1 fits automotive sensor-conditioning circuits because it combines two independent amplifiers, a 3 V to 26 V supply range, and AEC-Q100 qualification in an 8-pin TSSOP package. Each section can provide gain or active filtering for a resistive sensor such as a temperature, pressure, or position transducer. Its 700 kHz gain-bandwidth product supports low-bandwidth automotive signals, while 20 nA typical input bias current limits loading on high-impedance sensor networks. The 0.3 V/µs slew rate also allows the amplifier stage to preserve reasonable pulse fidelity. Engineers should verify the input common-mode range and output swing throughout the vehicle's full -40°C to +125°C operating environment.
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Industrial Control-Loop Amplification
The LM2904AVQPWRQ1 is suitable for error-amplifier and controller-feedback stages in industrial equipment operating from 3 V to 26 V. Its two channels can implement separate summing or differential functions, reducing the need for multiple amplifier packages when board space is constrained. The 700 kHz gain-bandwidth product is adequate for many low-bandwidth control loops, while internal frequency compensation simplifies stable feedback implementation. For actuator or power-converter control, engineers should calculate loop gain and phase margin and verify output-current capability against the load. The -40°C to +125°C operating range supports demanding industrial environments, although AEC-Q100 qualification does not replace application-specific safety analysis.
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Battery-Powered Instrumentation
A low-power instrumentation front end can use the LM2904AVQPWRQ1's typical 500 µA supply current per channel to conserve battery capacity while processing analog sensor signals. The device operates from a 3 V minimum supply, making it suitable for compact portable equipment, and its 20 nA typical input bias current is useful with high-impedance sources. Two independent channels can handle excitation, sensing, or active filtering in one package. The 700 kHz gain-bandwidth product is sufficient for low-frequency measurements rather than wideband instrumentation. Designers should confirm input offset across temperature, include adequate bypass capacitance, and account for the amplifier's quiescent current when calculating the complete sensor-node power budget.
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Active Filtering and Signal Shaping
The LM2904AVQPWRQ1 can implement active low-pass, high-pass, or band-pass networks when a design calls for gain and filtering around audio-band or lower-frequency signals. Its two channels allow independent stages, such as an anti-alias filter followed by a gain or level-shifting stage, within one 8-pin TSSOP package. A 700 kHz gain-bandwidth product and 0.3 V/µs slew rate provide useful dynamic range for moderate-frequency precision conditioning. Component tolerances will often dominate filter accuracy, so use suitable resistor and capacitor grades and verify gain-bandwidth effects around the operating frequency. Decoupling capacitors and short feedback paths are important for stable operation and reduced noise pickup.
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Motor and Actuator Feedback
The dual LM2904AVQPWRQ1 can monitor a motor or actuator plant by amplifying current-sense or position-feedback signals in one package. The first channel may condition a low-level feedback voltage, while the second supports an error amplifier or driver-control comparison. Its 26 V maximum supply rating provides headroom for systems sharing a protected intermediate rail, and the 40 mA per-channel output rating is suitable for many feedback-network loads. For motor environments, keep sensitive input traces away from switching currents and provide local supply bypassing. Confirm the common-mode range at every sensed voltage, check output swing against the control signal range, and use the -40°C to +125°C limits for worst-case design calculations.
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Power-Supply Feedback and Monitoring
The LM2904AVQPWRQ1 can amplify the error voltage of a linear power-supply feedback loop or monitor a divided output rail. Its 3 V to 26 V operating range and two-channel architecture permit separate output and input monitoring functions in a compact design. The 700 kHz gain-bandwidth product is suitable for low-frequency regulation loops, and the 500 µA typical supply current per channel helps limit auxiliary monitoring overhead. Stable operation depends on feedback-network design, output loading, and the power stage rather than the nominal gain-bandwidth value alone. Validate phase margin, output-current margin, startup behavior, and input common-mode limits. Automotive power systems should also verify qualification and transient requirements for the complete design.
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추천 제품 요약
엔지니어링 참조 데이터: LM2904AVQPWRQ1 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | LM2904AVQPWR | LM2904AQPWRQ1 | LM2904AQPWRG4Q1 | LM2904BVPWRQ1 | LM2904BAVPWRQ1 |
|---|---|---|---|---|---|---|
| Package | 8-pin TSSOP (PW) | 8-pin TSSOP (PW) | 8-pin TSSOP (PW) | 8-pin TSSOP (PW) | 8-pin TSSOP (PW) | 8-pin TSSOP (PW) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Amplifier Configuration | Dual operational amplifier | Dual operational amplifier | Dual operational amplifier | Dual operational amplifier | Dual operational amplifier | Dual operational amplifier |
| Maximum Supply Voltage | 26 V | 26 V | 26 V | 26 V | 26 V | 26 V |
| Minimum Supply Voltage | 3 V | 3 V | 3 V | 3 V | 3 V | 3 V |
| Gain-Bandwidth Product | 700 kHz | 700 kHz | 700 kHz | 700 kHz | 700 kHz | 700 kHz |
| Slew Rate | 0.3 V/µs | 0.3 V/µs | 0.3 V/µs | 0.3 V/µs | 0.3 V/µs | 0.3 V/µs |
| Input Offset Voltage | 3 mV typical | 3 mV typical | 3 mV typical | 3 mV typical | 3 mV typical | 3 mV typical |
| Input Bias Current | 20 nA typical | 20 nA typical | 20 nA typical | 20 nA typical | 20 nA typical | 20 nA typical |
| Automotive Qualification | AEC-Q100 qualified | Not the Q1 automotive ordering code | Q1 automotive ordering code | Q1 automotive ordering code | Q1 automotive ordering code | Q1 automotive ordering code |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
주요 차별점
- Automotive qualification in a compact dual TSSOP package (vs LM2904AVQPWR)
- Two independent amplifiers reduce package count (vs LM2903DR)
- Wide supply range with low typical channel current (vs LM2902DR)
- Automotive temperature capability (vs LM2904BAVPWRQ1)
설계 노트
Place the supply bypass capacitor directly between each amplifier's supply pin and ground reference. The dual device requires a local supply path that keeps both channels electrically close to the same low-impedance rail node; long traces between channel pins can impair transient response. Keep the 26 V absolute operating limit in view during automotive load-dump and supply-transient analysis, and verify that all feedback-generated output voltages remain inside the amplifier's output-swing limits.
Route each inverting and non-inverting input with short, quiet traces, especially when the source impedance is high. Keep these routes away from power-switching nodes, motor phases, relay contacts, and the unused amplifier's output. Connect the bypass network near the package rather than at the connector or power-supply output. These layout practices reduce common-mode pickup and parasitic feedback that can degrade the typical 3 mV offset performance and 700 kHz gain-bandwidth capability.
Do not assume the common-mode input range covers the complete 3 V to 26 V supply interval. Check the non-inverting input voltage against the device's common-mode limits at the minimum and maximum operating supply, especially when sensing near the lower rail. Also confirm that the load does not exceed the 40 mA per-channel output rating and that split-supply operation keeps the total rail-to-rail voltage within the device limit. Thermal analysis should include ambient temperature over the full -40°C to +125°C range.
Select feedback resistors and capacitors to keep the closed-loop bandwidth comfortably below the 700 kHz gain-bandwidth product, with additional margin for the 0.3 V/µs slew-rate requirement. Stable feedback ratios, physically small loops, and grounded unused inputs reduce oscillation and offset risk. For low-level sensor signals, use guarding or a ground plane and avoid placing high-current return paths beneath the input traces. Validate the completed board for oscillation, settling, and channel-to-channel interaction.
규정 준수 정보
Texas Instruments states that the LM2904-Q1 family is qualified to AEC-Q100 specifications. RoHS-compliant and lead-free status is stated by an authorized component listing; REACH, halogen-free, and conflict-minerals status are unknown.