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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

STMicroelectronics TS522IDT

Name: TS522IDT
Brand: STMicroelectronics
SKU: TS522IDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TS522IDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: TS522IDT.pdf

Description:: IC AUDIO 2 CIRCUIT 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:6,154

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Product details

Overview

TS522IDT from STMicroelectronics is a precision dual operational amplifier optimized for high-fidelity audio signal conditioning. It delivers 15 MHz gain bandwidth, 7 V/μs slew rate, and ultra-low 4.5 nV/√Hz input voltage noise, with ±14.3 V output swing into 600 Ω - enabling clean amplification in preamp and active filter stages of professional audio mixers.

For engineers reviewing the TS522IDT datasheet, TS522IDT pinout, TS522IDT application, or TS522IDT equivalent, key selection criteria include input offset voltage (≤1.7 mV), common-mode rejection (≥80 dB), supply voltage range (±2.5 V to ±15 V), thermal resistance (125 °C/W for SO-8), and automotive-grade availability (TS522IYDT).

Technical Context

The TS522IDT integrates two matched, internally compensated op-amps on a single die with rail-to-rail output stage symmetry and low-distortion (0.002% THD) across 20 Hz–20 kHz. Its 9 MHz unity-gain bandwidth and 30° phase margin at 100 pF load ensure stable operation in closed-loop configurations without external compensation.

Designed for bipolar ±15 V supplies, it maintains 85 dB CMRR and 105 dB SVR over temperature while supporting full-power bandwidth up to 120 kHz at 27 V_PP into 2 kΩ - critical for wide-dynamic-range analog front-ends in studio-grade equipment.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain bandwidth product	15 MHz - enables stable unity-gain buffer or 10× gain amplifier up to 1.5 MHz without peaking
Slew rate	7 V/μs - supports 20 kHz full-scale sine output up to ±10 V without slew-induced distortion
Input voltage noise	4.5 nV/√Hz @ 1 kHz - preserves SNR in microphone preamplifier gain stages with <1 μV RMS noise floor
Output voltage swing	±14.3 V / ±14.6 V @ ±15 V supply - delivers >95% of rail-to-rail dynamic range into 600 Ω loads
Input offset voltage	≤1.7 mV max - minimizes DC error in precision summing and differential amplification circuits
Common-mode rejection	≥80 dB - rejects power-supply ripple and shared-noise coupling in balanced line receivers

Pinout & Package

TS522IDT is supplied in an SO-8 (small outline integrated circuit, 8-pin) plastic micropackage with standard 1.27 mm pitch, compliant with ECOPACK® environmental specifications. Pin numbering follows JEDEC MS-012AA, with exposed pad option not present.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting input (Amplifier 1)	Differential node accepting inverted-phase signal; high-impedance (175 kΩ) with 12 pF capacitance
2	Non-inverting input (Amplifier 1)	Differential node accepting non-inverted signal; matched to Pin 1 for common-mode performance
3	Output (Amplifier 1)	Class-AB output stage capable of ±29 mA sink/source into short-circuit
4	VCC− (Negative supply)	Ground reference for negative rail; must be decoupled within 1 cm using ≥100 nF ceramic capacitor
5	Inverting input (Amplifier 2)	Independent second channel input; electrically isolated but thermally coupled to Amp 1
6	Non-inverting input (Amplifier 2)	Second channel positive input; identical bias current (250–800 nA) and offset drift (2 μV/°C) as Amp 1
7	Output (Amplifier 2)	Separate output driver with same 37 Ω small-signal impedance and 120 dB channel separation
8	VCC+ (Positive supply)	Primary positive rail connection; requires local 100 nF + 10 μF parallel decoupling

Key Features

Feature	Design Value
Low distortion	0.002% THD+N at 3 V_RMS, 20 Hz–20 kHz - meets Class A audio fidelity requirements without post-filtering
Large output swing	±14.3 V into 600 Ω - eliminates need for ±18 V rails in line-level driver designs
ESD protection	2 kV HBM - withstands handling during PCB assembly without external transient suppressors
Thermal stability	ΔV_io = 2 μV/°C - limits drift to <25 μV over full −40°C to +125°C operating range
Channel separation	120 dB at audio frequencies - prevents crosstalk between stereo channels in compact PCB layouts

Applications

Professional Audio Mixer Preamp

Studio Monitor Active Crossover

Use Scenario: Low-noise gain stage for condenser microphone signals prior to ADC conversion in 24-bit recording interfaces.

IC Role / Device Role / Timing Role: Dual-channel precision op-amp providing 40 dB gain with <1 μV RMS integrated noise over 20 Hz–20 kHz band.

Use Value: 4.5 nV/√Hz input noise and 0.002% THD preserve transient detail and harmonic integrity of acoustic sources.

Use Scenario: Splitting full-range line-level signal into low/mid/high bands using 2nd-order active filters before power amplification.

IC Role / Device Role / Timing Role: Dual op-amp implementing Sallen-Key topology with matched gain blocks and 120 dB inter-channel isolation.

Use Value: 15 MHz GBP and 7 V/μs slew rate support steep 24 dB/octave rolloff without phase shift or group delay distortion.

Automotive Infotainment Head Unit

Battery-Powered Portable Audio DAC Output Stage

Use Scenario: Post-DAC amplification and level-shifting in AEC-Q100 qualified infotainment systems operating from ±12 V rails.

IC Role / Device Role / Timing Role: Dual op-amp driving balanced line outputs with ESD-hardened inputs and −40°C to +125°C guaranteed operation.

Use Value: 2 kV HBM ESD rating and 85 °C/W R_thJC enable direct integration without additional protection circuitry.

Use Scenario: Final gain stage for portable headphone amplifiers powered by ±5 V from Li-ion battery regulators.

IC Role / Device Role / Timing Role: Dual op-amp delivering ±12.2 V swing into 10 kΩ loads with 5.5 mA total quiescent current per channel.

Use Value: 4 mA ICC typ. at ±5 V supply extends battery life while maintaining >110 dB SNR in 32 Ω headphone drive mode.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual precision op-amp applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
NE5532DR	Higher input bias current (300 nA min), lower GBP (10 MHz), no guaranteed 125°C operation	Established in legacy pro-audio gear; lacks automotive qualification and tighter offset spec	Prefer TS522IDT where low noise, high GBP, and extended temperature range are required
OPA2134PA	FET-input (50 pA I_ib), higher cost, lower slew rate (20 V/μs but only 8 MHz GBP), no SO-8 automotive variant	Used in ultra-high-Z sensor interfaces; less optimal for high-speed audio filtering	Choose TS522IDT for cost-sensitive, high-slew, dual-channel audio with SO-8 footprint compatibility

Compared with NE5532DR and OPA2134PA, TS522IDT offers superior noise-performance-to-cost ratio, guaranteed operation to +125°C in SO-8, and tighter input offset control - making it optimal for new-design audio signal chains requiring production scalability and thermal robustness.

Availability

TS522IDT is available at Aetrix Electronics and suitable for professional audio mixer preamps, studio monitor active crossovers, and automotive infotainment head units requiring stable component supply across industrial and automotive temperature ranges.

Supply support for TS522IDT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

The TS522 belongs to ST's precision analog op-amp product line, engineered specifically for high-fidelity audio signal processing where low noise, low distortion, and rail-compatible output swing are mandatory design constraints.

FAQ

What is the maximum safe supply voltage for TS522IDT?

The absolute maximum supply voltage is ±18 V (36 V total), but continuous operation above ±15 V risks exceeding junction temperature limits under load. The recommended operating range is ±2.5 V to ±15 V, with thermal derating required above 70°C ambient when dissipating >300 mW per amplifier.

Does TS522IDT require external compensation capacitors?

No - the TS522IDT is internally compensated for unity-gain stability with ≥30° phase margin at 100 pF capacitive load. External compensation is unnecessary for gains ≥1, though layout best practices (short traces, local decoupling) remain essential to maintain stability in high-frequency PCB environments.

Can TS522IDT drive 600 Ω professional audio lines directly?

Yes - it delivers ±13.2 V output swing into 600 Ω at ±15 V supply, meeting EBU R68 and AES3 line-driving standards. With 29 mA short-circuit current capability and 37 Ω output impedance, it maintains low THD (<0.002%) and flat frequency response up to 120 kHz without external buffers.

Is there a lead-free and RoHS-compliant version of TS522IDT?

Yes - TS522IDT is manufactured in ST's ECOPACK®-compliant SO-8 package, fully RoHS-compliant and halogen-free per IEC 61249-2-21. The device carries the "E" suffix in marking (522I) and conforms to JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) for standard reflow processes.

TS522IDT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: Audio

Number of Circuits:: 2

Output Type:: -

Slew Rate:: 7V/µs

Gain Bandwidth Product:: 15 MHz

-3db Bandwidth:: -

Current - Input Bias:: 250 nA

Voltage - Input Offset:: 850 µV

Current - Supply:: 4mA

Current - Output / Channel:: 37 mA

Voltage - Supply Span (Min):: 5 V

Voltage - Supply Span (Max):: 30 V

Operating Temperature:: -40°C ~ 125°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

TS522IDT FAQ

1.How can I place an order for TS522IDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TS522IDT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TS522IDT reliable?

The price and inventory of TS522IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS522IDT is usually 5 days.

3.What payment methods are accepted for TS522IDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS522IDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TS522IDT?

TS522IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TS522IDT order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TS522IDT?

For technical support, including TS522IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS522IDT requirements.

6.How does Aetrix verify that TS522IDT is sourced from the original manufacturer or authorized distributors?

All TS522IDT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TS522IDT meets industry standards.

7.What is the process for return or replacement of TS522IDT?

All TS522IDT units undergo pre-shipment inspection (PSI). If there is an issue with TS522IDT, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TS522IDT part is unused and in its original packaging.

Return procedure for TS522IDT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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