LM2904VDR2G - Dual 1MHz Op Amp | onsemi | Industrial
MPN: LM2904VDR2G ✓ AktifLM2904VDR2G Ringkasan
An operational amplifier is an analog integrated circuit that uses high open-loop gain and negative feedback to amplify a voltage difference. The LM2904 family belongs to the operational-amplifier hierarchy, with the LM358 family representing one-half of a quad amplifier. Its common-mode input range extends to ground or VEE, allowing useful operation in single-supply circuits where the input signal approaches the negative supply rail.
Key features include two amplifier circuits per package, a 1 MHz gain-bandwidth product, a 0.6 V/µs slew rate, and a specified operating voltage range of up to ±16 V, equivalent to 32 V across the supply rails. The low-power design supports both single-supply and split-supply operation. The standard 8-SOIC package also simplifies assembly in designs that do not require a high-performance precision amplifier.
The LM2904 architecture is intended for general-purpose amplification rather than rail-to-rail input or output operation. Its common-mode input behavior reaches ground or VEE, making it particularly useful for circuits powered from a positive rail and ground. As with any feedback amplifier, stable operation depends on suitable compensation, output loading, source impedance, and the selected gain network.
Typical uses include buffering sensor outputs, amplifying low-level analog signals, conditioning potentiometer inputs, driving moderate loads, building active filters, and providing general-purpose gain stages in industrial or embedded systems. Two amplifiers in one SOIC package can also simplify layouts where matched general-purpose stages are needed.
When designing around the LM2904, check the common-mode input range and output swing at the intended load rather than assuming rail-to-rail behavior. Place input and feedback components close to the device, provide adequate bypassing near the supply pins, and verify stability at the lowest planned gain. The manufacturer datasheet should guide compensation, load capability, and absolute maximum ratings.
This product page combines the exact LM2904VDR2G package and electrical identity with practical design guidance, pin-level information, verified source links, and a package-matched replacement comparison. These engineering details help buyers distinguish the dual general-purpose amplifier from single-amplifier, automotive-qualified, and other LM-family variants before committing to a PCB design.
Pilihan pengganti yang segera untuk LM2904VDR2G — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
Varietas dalam siri ini
Model serupa yang kompatibel dengan pengganti yang segera LM2904VDR2G (sama faktor bentuk dan kaki) — berbeza dalam Package, Gain-Bandwidth Product, Amplifier Type, Compensation, Number of Circuits.
LM2904VDG
✅ Masuk Drop-In📋 Alternatif rujukan (tidak dalam katalog)
NCV2904DR2G
✅ Masuk Drop-InHubungi untuk harga
Lihat Datasheet →LM2904VDR2
✅ Masuk Drop-In📋 Alternatif rujukan (tidak dalam katalog)
LM2904DT
✅ Masuk Drop-InHubungi untuk harga
Lihat Datasheet →LM2904PW
✅ Masuk Drop-In ⚠️ Spesifikasi Tidak DisahkanHubungi untuk harga
Lihat Datasheet →LM2904YDT
✅ Masuk Drop-In📋 Alternatif rujukan (tidak dalam katalog)
LM2904VDR2G Penilaian maksimum & Ciri-ciri Elektrik
| Amplifier Type | General Purpose |
| Number of Circuits | 2 circuits |
| Gain-Bandwidth Product | 1 MHz |
| Slew Rate | 0.6 V/µs |
| Supply Voltage Range | Up to ±16 V (32 V total) |
| Common-Mode Input Voltage | Extends to ground/VEE |
| Supply Configuration | Single supply or split supply |
| Kemasan | 8-SOIC, 3.90 mm body width |
| Jenis Pemasangan | Surface mount |
| Bilangan Pin | 8 pins |
Konfigurasi Pin LM2904VDR2G
| Pin 1 | OUT A — Amplifier A output |
| Pin 2 | IN A- — Amplifier A inverting input |
| Pin 3 | IN A+ — Amplifier A non-inverting input |
| Pin 4 | VEE — Negative supply voltage or ground in single-supply operation |
| Pin 5 | IN B+ — Amplifier B non-inverting input |
| Pin 6 | IN B- — Amplifier B inverting input |
| Pin 7 | OUT B — Amplifier B output |
| Pin 8 | VCC — Positive supply voltage |
Aplikasi Biasa
LM2904VDR2G patut untuk 6 aplikasis: Industrial Sensor Signal Conditioning, Potentiometer and Resistive Sensor Buffering, Active Filter and Gain Stage, Audio and Communication Interface Buffering, Motor and Control-System Signal Conditioning, Data Acquisition Front End.
Industrial Sensor Signal Conditioning
The LM2904VDR2G is well suited to amplifying low-level sensor signals when the circuit operates from a positive supply and ground. Its common-mode input range extends to ground or VEE, allowing inputs near the negative rail, while the 1 MHz gain-bandwidth product supports general-purpose conditioning stages rather than high-speed instrumentation. Two amplifiers in one 8-SOIC package can handle complementary sensor channels or implement gain and filtering sections. Because the output is not specified as rail-to-rail, verify the sensor voltage range, required output swing, and load before fixing the gain and feedback network.
Disebarkan
Potentiometer and Resistive Sensor Buffering
The LM2904VDR2G can buffer potentiometer wiper voltages or other resistive sensors without introducing the loading that a passive divider would create. Its 0.6 V/µs slew rate is suitable for ordinary control and measurement signals, and the 1 MHz gain-bandwidth product leaves ample bandwidth for moderate-gain buffering. The common-mode range reaching ground or VEE is particularly helpful in single-supply systems whose sensor output lies near zero volts. Set the buffer gain through feedback resistors, keep the input impedance high, and confirm that the intended sensor voltage remains inside the amplifier's electrical limits.
Disebarkan
Active Filter and Gain Stage
The LM2904VDR2G can form an active low-pass, high-pass, or band-pass stage in instrumentation and control systems where moderate bandwidth and low quiescent power are more important than precision or rail-to-rail operation. Its 1 MHz gain-bandwidth product supports the usual general-purpose filter configurations, and the two amplifier sections permit cascaded stages within one 8-SOIC package. Component tolerances and the amplifier's offset characteristics will set achievable accuracy. Validate stability, especially when driving capacitive loads or operating at very low closed-loop gain, using the compensation and stability guidance in the manufacturer datasheet.
Disebarkan
Audio and Communication Interface Buffering
The LM2904VDR2G can serve as a general-purpose input or output buffer in audio and communication equipment when signal bandwidth is well below its 1 MHz gain-bandwidth product. The 0.6 V/µs slew rate provides ample response for many low-frequency audio and control paths, while the common-mode input range extending to ground or VEE supports single-supply implementations. It does not provide the low-noise or rail-to-rail performance expected from a dedicated audio amplifier, so the complete signal path must be evaluated for distortion, headroom, and load compatibility. Keep feedback loops short and avoid excessive capacitive loading.
Disebarkan
Motor and Control-System Signal Conditioning
The LM2904VDR2G is applicable to feedback conditioning, potentiometer processing, and low-level command-signal amplification in industrial and motor-control systems. Its low-power general-purpose design is appropriate when the control bandwidth is moderate and the operating environment does not require the exact qualification of an automotive variant. The 1 MHz bandwidth and 0.6 V/µs slew rate cover many slow control-loop signals, but offset, noise, common-mode limits, and output swing still define usable accuracy. For vehicle applications, confirm the required automotive grade, temperature range, and production qualification before releasing the design.
Disebarkan
Data Acquisition Front End
The LM2904VDR2G can provide general-purpose amplification before or after a higher-performance converter in a data-acquisition front end. Two amplifiers in the 8-SOIC package can implement differential excitation, gain, or filtering functions while keeping the circuit compact. The 1 MHz gain-bandwidth product supports modest-bandwidth measurements, and common-mode operation down to ground or VEE accommodates single-supply sensor interfaces. The device is not a precision amplifier, so offset, bias current, and drift must be included in the acquisition error budget. Confirm output swing, load impedance, settling behavior, and any required converter-specific drive topology.
Disebarkan
Ringkasan Produk Disebarkan
Data referensi kejuruteraan untuk LM2904VDR2G — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Perbandingan dengan Gantian
| Parametr | Produk Ini | LM2904VDG | NCV2904DR2G | LM2904VDR2 | LM2904DT | LM2904PW | LM2904YDT |
|---|---|---|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same |
| Brand | onsemi | onsemi | onsemi | onsemi | onsemi | onsemi | STMicroelectronics |
| Amplifier Type | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose |
| Number of Circuits | 2 circuits | 2 circuits | 2 circuits | 2 circuits | 2 circuits | 2 circuits | 2 circuits |
| Gain-Bandwidth Product | 1 MHz | 1 MHz | 1 MHz | 1 MHz | 1 MHz | 1 MHz | 1 MHz |
| Slew Rate | 0.6 V/µs | 0.6 V/µs | 0.6 V/µs | 0.6 V/µs | 0.6 V/µs | 0.6 V/µs | 0.6 V/µs |
| Maximum Supply Voltage | 32 V total (±16 V) | 32 V total | 32 V total | 32 V total | 32 V total | 32 V total | 32 V total |
| Common-Mode Input | Extends to ground/VEE | Extends to ground/VEE | Extends to ground/VEE | Extends to ground/VEE | Extends to ground/VEE | Extends to ground/VEE | Extends to ground/VEE |
| Supply Configuration | Single supply or split supply | Single supply or split supply | Single supply or split supply | Single supply or split supply | Single supply or split supply | Single supply or split supply | Single supply or split supply |
| Automotive Positioning | General-purpose LM2904 ordering code | General-purpose onsemi variant | Automotive-positioned variant | General-purpose onsemi variant | General-purpose onsemi variant | General-purpose onsemi variant | STMicroelectronics general-purpose variant |
Penyeberangsung Jelas
- Two general-purpose amplifier channels in one compact package (vsLM2901DG)
- Input operation extends toward the negative supply rail (vsLM2904YDT)
- Adequate bandwidth for general-purpose industrial signal paths (vsTL072)
Catatan Desain
Do not assume that common-mode input operation extending to ground or VEE means the output can swing fully to either rail. Check the output-voltage limits at the intended load and leave adequate input and output headroom. In a single-supply circuit, ground is VEE, so an input exactly at ground leaves little additional signal range and can make offset errors proportionally significant.
Place the supply bypass capacitor between pin 8 and pin 4 as close to the device as practical. Keep the ground return short and connect it directly to the bypass-capacitor ground terminal. Route the two amplifier sections separately where possible, and avoid sharing high-current return paths between input, feedback, and output nodes to minimize ground-induced error.
Use feedback resistors low enough to limit thermal and flicker-noise effects, but not so low that source loading or amplifier drive current becomes excessive. At low closed-loop gains, check the compensation requirements and avoid large capacitive loads because they can reduce phase margin. Validate the final filter or amplifier network with the intended source and load impedances rather than an ideal signal source alone.
The LM2904VDR2G is intended for low-power general-purpose amplification, but total supply dissipation still depends on voltage, load, and output duty cycle. Keep the 8-SOIC footprint from becoming a thermal concentration point and maintain copper around the package where practical. Use the manufacturer absolute maximum ratings and recommended operating limits rather than treating the 32 V total supply capability as a design target.
Maklumat Kesediaan
No explicit RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification statement appears in the target product information. The target ordering code is treated as a general-purpose industrial part rather than an automotive-qualified variant.
