LM2904S-13 - Dual 1.1MHz Op Amp, 100dB Gain | Diodes
MPN: LM2904S-13 ✓ AktifLM2904S-13 Genel Bakış
An operational amplifier is a high-gain, differential-input analog amplification component used to compare or amplify voltage signals. Within the electronics hierarchy, the LM2904 belongs to the operational-amplifier family, which sits within analog amplifier ICs and broader semiconductor signal-conditioning products. Its two-channel configuration allows one device to implement two related analog functions while reducing the number of components required on a circuit board.
The manufacturer datasheet identifies the LM2902 and LM2904 series as low-input-offset-voltage amplifiers designed for single power-supply operation over a wide voltage range, with split-supply operation also possible. The operating-temperature characterization extends from -40°C to +125°C. The standard green mold compound, industry-standard pinout, and SO-8 packaging support use in conventional industrial, instrumentation, control, and signal-conditioning equipment.
The 1.1 MHz gain bandwidth product makes the device appropriate for low-frequency amplification rather than high-speed signal processing. Its 100 dB open-loop gain provides substantial nominal gain before feedback and saturation limits are considered. The 20 nA input bias-current listing is also relevant when the source impedance is high, because bias-current error can become significant relative to the input voltage being measured.
Typical uses include transducer-signal conditioning, feedback networks in control systems, active filtering, sensor amplification, and general-purpose analog signal conditioning. Two amplifiers in one package are useful when a design needs an inverting stage and a non-inverting stage, two sensor channels, or an amplifier paired with a comparator-like buffer function.
Designers should verify input common-mode range, output swing, output-current capability, offset voltage, and supply-current limits in the manufacturer datasheet before finalizing a new board. Decoupling capacitors should be placed close to the supply pins, and unused amplifier inputs must be biased so that both output stages remain in a defined operating state.
This product page combines the manufacturer family data with practical application guidance, a same-package family alternative, and engineering-focused selection criteria. It is intended to help engineers determine whether the LM2904S-13 is appropriate for a low-frequency, dual-amplifier design before moving to detailed electrical verification and PCB implementation.
Drop-in alternatifler için LM2904S-13 — aynı paket, pin-başına uyumlu. PCB yeniden montajı gerektiren farklı paket bileşenleri dışlanmıştır.
LM2904S
✅ Yerleştirme📋 Katalogda Olmayan Referans Alternatifi
LM2904S-13 Maksimum Değerlendirmeler & Elektriksel Özellikler
| Amplifier Type | Dual general-purpose operational amplifier |
| Number of Channels | 2 circuits |
| Gain Bandwidth Product | 1.1 MHz |
| Open-Loop Gain | 100 dB |
| Input Bias Current | 20 nA |
| Gain-Bandwidth Description | 700 kHz operational-amplifier bandwidth listing |
| Supply Type | Single supply or split supply |
| İşletim Sıcaklığı Aralığı | -40°C to +125°C |
| Paket | 8-pin SO package |
| Montaj Türü | Surface mount |
| Mold Compound | Green mold compound |
LM2904S-13 8-pin so package Pin Yapısı Kılavuzu
LM2904S-13 (8-pin so package paket) için pin yapısı. Bu güç cihazı gate, drain ve kaynak terminal özelliklerlidir. Polarizasyonlu paketler için, doğru pin 1 yönlendirme ve ayak detayları için üretici veri kitapçığını referans alın. Orta uygulamalar arasında güç besleme tasarımı, motor kontrolü ve yük değiştirme bulunur.
Ayrıntılı pin çıkış verisi mevcut değil: LM2904S-13.
Aşağıdaki veri sayfası tam pin konfigürasyonu için.
Tipik Uygulamalar
LM2904S-13 için uygundur 6 uygulamas: Industrial Sensor Signal Conditioning, Active Audio and Control Filtering, Transducer Bridge Excitation, Process Control Feedback Networks, Data Acquisition Buffering, General-Purpose Analog Signal Conditioning.
Industrial Sensor Signal Conditioning
The LM2904S-13 fits low-frequency sensor conditioning because it combines two independent channels, 100 dB open-loop gain, and 20 nA input bias current in an 8-pin SO package. Each channel can amplify a sensor output before conversion or provide the gain stage in an active filter. According to the manufacturer datasheet, the family supports single or split supplies and operation from -40°C to +125°C. Confirm that the sensor output remains inside the amplifier input common-mode range and that the required gain can be achieved at the usable bandwidth.
Önerilen
Active Audio and Control Filtering
The dual LM2904S-13 can implement two linked analog filter sections or a gain stage followed by an active feedback network. Its listed 1.1 MHz gain bandwidth product is appropriate for low-frequency audio, process-control, and instrumentation bandwidths rather than high-speed waveform work. The manufacturer describes the LM2902/LM2904 series as low-input-offset-voltage amplifiers, while the distributor listing identifies 100 dB open-loop gain. Confirm output swing, load capability, and stability with the selected external resistor and capacitor values.
Önerilen
Transducer Bridge Excitation
Two channels in the LM2904S-13 can amplify outputs from a resistive bridge or other differential transducer when the excitation and return signals fit the amplifier input range. The 100 dB open-loop gain supports high closed-loop gain when feedback resistors define the operating mode, and the 20 nA input bias-current specification helps assess high-impedance sensor errors. According to the manufacturer datasheet, the device supports single-supply and split-supply operation over a -40°C to +125°C characterized range.
Önerilen
Process Control Feedback Networks
The LM2904S-13 is suitable for error-amplifier and feedback stages in slow industrial control loops. Two channels allow a forward-path amplifier and a feedback or monitoring amplifier to share one package, reducing board area compared with two separate single amplifiers. The 1.1 MHz gain bandwidth product is ample for many temperature, pressure, and level loops, while the -40°C to +125°C characterization supports harsh operating environments. Validate phase margin, common-mode range, and output saturation for the final compensation network.
Önerilen
Data Acquisition Buffering
The LM2904S-13 can buffer sensor outputs before routing them into a higher-impedance acquisition chain or multiplexer. Its two channels allow adjacent signals to be conditioned consistently, while the 100 dB open-loop gain provides useful margin for closed-loop voltage-follower operation. The 20 nA input bias current is particularly relevant when source impedance is high enough to create appreciable offset. Check the source impedance, input bias-current error, common-mode voltage, output drive, and acquisition settling requirements.
Önerilen
General-Purpose Analog Signal Conditioning
The LM2904S-13 works as a general-purpose gain, summing, or impedance-conversion stage in laboratory and industrial electronics. Its low-frequency 1.1 MHz gain bandwidth product and 100 dB nominal open-loop gain support conventional feedback designs without the complexity of a high-speed operational amplifier. The manufacturer identifies industry-standard pinouts and green mold compound for the LM2904 family, making the device a practical choice for compact dual-stage analog boards. Validate each channel’s operating region and unused-input biasing in the final schematic.
Önerilen
Önerilen Ürünler Özeti
Mühendislik referans verileri: LM2904S-13 — karşılaştırma, tasarım rehberi ve uyumluluk bilgileri.
Seçim Kılavuzu
Alternatiflerle Karşılaştırma
| Parametre | Bu Ürün | LM2904S |
|---|---|---|
| Package | 8-pin SO package | 8-pin SO package |
| Brand | Diodes Incorporated | Diodes Incorporated |
| Amplifier Configuration | Dual, 2 circuits | Dual, 2 circuits |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C family range |
| Supply Support | Single supply or split supply | Single supply or split supply family support |
| Mold Compound | Green mold compound | Green mold compound family construction |
Ana Farklılayıcılar
- Two amplifiers share one compact SO-8 package (karşılaştırma:LM2904S)
- Gain bandwidth product suited to general-purpose low-frequency analog work (karşılaştırma:LM2904S)
- Wide characterized temperature range (karşılaştırma:LM2904S)
Tasarım Notları
Place the power-supply decoupling capacitor close to the LM2904S-13 supply pins and connect the ground return directly to the device ground pin. Keep the external feedback components and input components adjacent to their corresponding amplifier pins to minimize parasitic capacitance and feedback-loop length. Because the manufacturer describes industry-standard pinouts, verify the exact SO-8 symbol and pin numbering against the current package drawing before releasing the PCB.
Do not allow either input to float. An unused amplifier channel should have its non-inverting input tied to a defined reference potential, usually ground or another valid common-mode voltage, while preserving the feedback connection. Also verify the input common-mode range and output swing for the actual supply voltage; operation at a nominal rail does not guarantee linear output behavior near the limits.
The listed 1.1 MHz gain bandwidth product limits the useful closed-loop bandwidth and phase margin at higher gains. Avoid treating the 100 dB open-loop gain as a usable closed-loop gain without checking the amplifier's gain-bandwidth behavior, load, and feedback network. Keep sensor traces away from noisy switching nodes and use a quiet ground path to avoid converting common-mode disturbances into output errors.
Uyumluluk Bilgisi
The manufacturer datasheet states that the LM2902/LM2904 series uses green mold compound as standard, but no explicit RoHS, REACH, lead-free, halogen-free, conflict-minerals, or AEC-Q100 declaration was identified. The schema field name is retained as specified; its status remains unknown.
