TS522IN - 15MHz Dual Low-Noise Op Amp | STMicroelectronics
MPN: TS522IN ✗ پایان تولیدTS522IN نمای کلی
An operational amplifier is an analog signal-conditioning IC that uses high open-loop gain and negative feedback to amplify, buffer, filter, or compare small voltage signals. The TS522 belongs to the operational-amplifier hierarchy within linear and amplifier ICs. Its dual-channel architecture integrates two amplifiers in one package, reducing board area and simplifying dual audio-path or differential-signal designs.
The TS522IN emphasizes low-noise signal handling, low input offset voltage, and high dynamic performance. Manufacturer descriptions identify a maximum input offset voltage of 850 uV, voltage noise of 4.5 nV/sqrt(Hz), gain-bandwidth product of 15 MHz, and slew rate of 7 V/us. The device also includes internal ESD protection rated at 2 kV and a macromodel for simulation. These characteristics make it relevant to audio preamplification, active filtering, buffering, and general low-noise analog signal chains.
The dual amplifier can process two related signals independently, including left and right audio channels or the positive and negative sides of a differential circuit. Its 15 MHz bandwidth provides useful bandwidth for audio and wider-band analog stages, while the 7 V/us slew rate supports rapidly changing waveforms. The 4.5 nV/sqrt(Hz) voltage-noise figure helps reduce amplifier-added noise in high-gain stages, making the TS522IN most useful when the signal source impedance, resistor selection, and feedback topology are controlled carefully.
Typical applications include stereo audio preamplifiers, microphone preamplifiers, active low-pass filters, audio buffers, sensor-conditioning stages, and small-signal audio-driver interfaces. The mini-DIP package is appropriate for legacy through-hole designs, test equipment, prototypes, and applications where hand insertion or socket assembly is preferred. Surface-mount production should use an electrically and mechanically verified SO-8-family option rather than assuming the DIP package is interchangeable.
When designing around the TS522IN, begin with the power-supply limits and common-mode input range listed in the manufacturer datasheet. Confirm that source and sink output-current requirements remain within the operating limits at the selected gain and load. Place input and feedback components close to the device, maintain a stable ground reference, and use appropriate bypassing at each supply pin. Decoupling capacitors should be placed at the amplifier pins rather than at a distant power entry point.
This page consolidates the TS522IN technical characteristics, package constraints, sourcing guidance, application fit, and verified cross-reference information. It also distinguishes documented device attributes from parameters that require confirmation in the manufacturer datasheet, helping engineers assess the part before PCB and production decisions.
جایگزین‌های drop-in برای TS522IN — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
هیچ جایگزین مستقیمی برای این محصول موجود نیست.
درخواست جایگزینTS522IN حداکثر مقادیر مجاز و مشخصات الکتریکی
| Amplifier Type | Dual precision operational amplifier |
| Number of Channels | 2 channels |
| Primary Application | Audio applications |
| Gain-Bandwidth Product | 15 MHz |
| Slew Rate | 7 V/us |
| Voltage Noise Density | 4.5 nV/sqrt(Hz) |
| Maximum Input Offset Voltage | 850 uV |
| Maximum Total Harmonic Distortion | 0.002% |
| Internal ESD Protection | 2 kV |
| Supply Voltage Range | 2.5 V to 15 V |
| Maximum Total Supply Voltage | 30 V |
| Input Bias Current | 250 nA |
| بسته‌بندی | 8-pin mini-DIP |
| نوع نصب | Through-hole |
| وضعیت RoHS | Compliant |
| وضعیت چرخه عمر | Discontinued by manufacturer |
راهنمای پیکربندی پین TS522IN 8-pin mini-dip
پیکربندی پین برای TS522IN (پکیج 8-pin mini-dip). این قطعه آنالوگ دارای پین‌های ورودی، خروجی و تغذیه است. برای پیکربندی‌های پین offset null، جبران‌سازی و فعال‌سازی به دیتاشیت سازنده مراجعه کنید. ایده‌آل برای مدارهای شرطی‌سازی سیگنال و تقویت‌کننده.
داده پین‌آوت تفصیلی موجود نیست برای TS522IN.
به دیتاشیت برای پیکربندی کامل پین‌ها.
کاربردهای معمول
TS522IN مناسب است برای 6 کاربردs: Stereo Audio Preamplification, Active Audio Filtering, Microphone Preamp, Audio Line Buffer, Precision Analog Signal Conditioning, Legacy Audio Test Equipment.
Stereo Audio Preamplification
The TS522IN fits stereo audio preamplification because its two channels provide 15 MHz gain-bandwidth product and 7 V/us slew rate while maintaining 4.5 nV/sqrt(Hz) voltage noise. One channel can amplify the left input and the other the right input, reducing the component count compared with two single amplifiers. The 850 uV maximum offset specification supports low-level signal conditioning, while the high bandwidth allows audio-band signals to pass with limited phase shift. Source impedance and feedback-resistor values must be selected so that amplifier noise does not dominate the signal path.
پیشنهادی
Active Audio Filtering
The TS522IN is suitable for active audio filters because its 15 MHz gain-bandwidth product provides ample loop gain across the audio range and its 7 V/us slew rate supports higher-amplitude transitions. The dual arrangement can implement two linked filter stages or independent left and right channels. Low-noise operation helps preserve the dynamic range of weak source signals, although the final cutoff, gain, and stability must be calculated from the selected topology and resistor values.
پیشنهادی
Microphone Preamp
A microphone preamp benefits from the TS522IN's 4.5 nV/sqrt(Hz) voltage-noise density and low 850 uV maximum input offset voltage. The dual-channel format can support a stereo pair of microphones or provide gain for one microphone and buffering for a related line input. The 15 MHz bandwidth and 7 V/us slew rate provide additional headroom beyond the nominal audio band. Designers should still account for microphone source impedance, bias requirements, connector noise, and the amplifier's input-bias-current contribution to avoid practical noise degradation.
پیشنهادی
Audio Line Buffer
The TS522IN can serve as a unity-gain audio line buffer when the source and destination require isolation, impedance transformation, or additional drive. Its 7 V/us slew rate helps preserve large-amplitude transients, and the 15 MHz gain-bandwidth product provides loop-gain margin for simple unity-gain configurations. The two channels can buffer related stereo signals. Because the mini-DIP package is intended for through-hole assembly, this option is most relevant to legacy boards, prototypes, test equipment, and industrial products where surface-mount conversion is undesirable.
پیشنهادی
Precision Analog Signal Conditioning
The low-noise, dual-channel TS522IN can condition small analog signals in instrumentation and control equipment. Its 850 uV maximum offset voltage and 4.5 nV/sqrt(Hz) noise density are useful for sensor interfaces where errors must remain small relative to the measured quantity. The 15 MHz bandwidth supports higher-frequency control or measurement signals, and the 7 V/us slew rate handles faster transients. Common-mode limits, output swing, and bias-current error must be checked against the sensor and analog-to-digital converter used in the system.
پیشنهادی
Legacy Audio Test Equipment
The TS522IN is useful in through-hole audio test and measurement equipment because the 8-pin mini-DIP package simplifies socket-based assembly, prototype replacement, and manual inspection. Its dual architecture provides two low-noise channels for gain, attenuation, or filtering functions, while the 15 MHz bandwidth and 7 V/us slew rate support common audio test bandwidths. Use stable reference sources and controlled grounding to avoid measuring system noise rather than device noise. Confirm supply tolerance and output swing against the intended test range before finalizing the instrument front end.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای TS522IN — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
یادداشت‌های طراحی
Place the TS522IN input, output, feedback, and supply components close to the device to minimize parasitic inductance and capacitance. Keep sensitive input traces away from power-supply and return-current paths. Use a continuous ground reference beneath the signal section, and verify the manufacturer's recommended bypass-capacitor values and placement directly against the device application circuit.
Select the supply so that the operating point remains inside the 2.5 V to 15 V range and the input common-mode voltage stays within its allowed span. If the output is biased well below the supply, amplifier dissipation can become significant. Confirm the resulting current against both quiescent-current and output-drive limits, then use the manufacturer maximum ratings to calculate junction temperature.
Choose feedback resistors and source impedances to control resistor-generated noise and amplifier bias-current error. The nominal 4.5 nV/sqrt(Hz) density only describes the amplifier's own voltage-noise contribution; total input-referred noise also includes source resistance, feedback resistors, supply noise, and layout coupling. Increase gain carefully while checking closed-loop stability and the resulting signal-to-noise ratio.
Do not treat the discontinued lifecycle status as a guarantee of continuing supply. Avoid assuming that the DIP suffix and surface-mount suffix are drop-in equivalents because their footprints differ. For a new design, verify availability and inspect the manufacturer datasheet for absolute maximum ratings, common-mode range, output swing, bias current, and stability before schematic release.
اطلاعات انطباق
RoHS 3 compliance is stated in product-listing information. No additional environmental or automotive qualification claims were identified.
