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

STMicroelectronics TSH94IDT

Name: TSH94IDT
Brand: STMicroelectronics
SKU: TSH94IDT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TSH94IDT

Manufacturer:: STMicroelectronics

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: TSH94IDT.pdf

Description:: IC OPAMP GP 4 CIRCUIT 16SO

Quantity:: RFQ Add To RFQ list

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Inventory:1,704

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Product details

Overview

TSH94IDT from STMicroelectronics is a quad high-speed, low-power operational amplifier optimized for video signal processing and audio applications. It delivers 150 MHz gain-bandwidth, 110 V/µs slew rate, 4.5 mA per amplifier supply current, and ultra-low 4.2 nV/√Hz input voltage noise. Designed for 600 Ω and 150 Ω video loads, it achieves 0.03% differential gain and 0.07° differential phase in NTSC/PAL systems.

For engineers reviewing the TSH94IDT datasheet, TSH94IDT pinout, TSH94IDT application, or TSH94IDT equivalent, this device is selected for high-fidelity analog front-ends where simultaneous speed, low power, standby control, and video/audio fidelity are required - especially in multi-channel signal routing, set-top-box video buffers, and broadcast-grade line drivers.

Technical Context

The TSH94IDT integrates four independent high-speed op-amps in a single SO-16 package, each with rail-to-rail output swing and unity-gain stability. Its architecture supports dual independent standby modes (STANDBY 1 on Op-Amp 2, STANDBY 2 on Op-Amp 3), enabling selective power-down while maintaining high-impedance outputs and <200 ns wake-up latency.

It operates from ±5 V supplies (7–12 V total), features 80 dB common-mode rejection and 60 dB supply rejection, and maintains 0.1 dB gain flatness up to 6 MHz at 10 dB gain - critical for composite video baseband integrity and wideband audio amplification without external compensation.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain bandwidth product	150 MHz - enables stable closed-loop operation up to 10 MHz with ≥10 dB gain margin
Slew rate	110 V/µs - supports full-swing 10 MHz sine waves without distortion in video line drivers
Supply current per amp	4.5 mA - allows quad-channel operation at ≤18 mA total, suitable for thermally constrained consumer enclosures
Input voltage noise	4.2 nV/√Hz - preserves SNR >90 dB in 20 kHz audio paths and minimizes visible noise in SD/HD video
Differential gain/phase	0.03 % / 0.07° - meets ITU-R BT.470 and EIA-770 standards for broadcast-quality video transmission
Standby isolation	70 dB - prevents crosstalk between active and standby channels during multiplexed signal routing
Output short-circuit current	±40 mA - drives 150 Ω coaxial cables directly without external buffers

Pinout & Package

Package: SO-16 (Plastic micropackage), ECOPACK® compliant, 1.27 mm pitch, 10.0 × 4.0 mm body size.

Pin	Circuit Role	Design Meaning
1, 5, 9, 13	Inverting input (Amp 1–4)	Differential input node for each op-amp; requires matched trace lengths to minimize CMRR degradation
2, 6, 10, 14	Non-inverting input (Amp 1–4)	High-impedance input (15 μA max bias) compatible with passive RC filters and sensor interfaces
3, 7, 11, 15	Output (Amp 1–4)	Rail-to-rail capable; sinks/sources ±40 mA; enters high-Z state under STANDBY control
4, 12	V_CC+	Positive supply rail (7–12 V); bypass with 10 μF + 10 nF ceramic near pin
8	STANDBY 1	Logic input controlling Amp 2; threshold ≈ V_CC+ − 1.6 V; 2 pA leakage ensures minimal loading
9	STANDBY 2	Logic input controlling Amp 3; identical threshold and leakage to Pin 8; enables independent channel gating
16	V_CC−	Negative supply rail (−5 V typical); must be decoupled symmetrically to V_CC+

Key Features

Feature	Design Value
Dual independent standby control	Selectively disables Amp 2 or Amp 3 to reduce system power by 4.5 mA/channel while preserving signal path integrity
Video-optimized AC performance	0.1 dB gain flatness to 6 MHz and <0.1° group delay variation ensure minimal color burst distortion in PAL/NTSC
Low-noise, high-slew architecture	4.2 nV/√Hz noise + 110 V/µs slew rate enables clean 1080i video reconstruction and 200 kHz audio bandwidth
Unity-gain stable design	Operates without external compensation at AV = 1, simplifying PCB layout for buffer and follower configurations
600 Ω / 150 Ω load drive	Guaranteed output swing and settling time into standard video termination impedances without external current boosters

Applications

Set-Top Box Video Processing

DVD Player Audio Output Stage

Use Scenario: Buffering and level-shifting RGB/YUV signals before HDMI encoder or DAC.

IC Role / Device Role / Timing Role: Quad op-amp configured as three-channel video driver (Amp 1–3) with Amp 4 as sync pulse conditioner.

Use Value: 0.03% differential gain preserves chroma fidelity across 480p–1080i resolutions; standby mode reduces idle power by 9 mA during menu navigation.

Use Scenario: Driving balanced line outputs (L/R) and subwoofer preamp in DVD audio subsystem.

IC Role / Device Role / Timing Role: Dual-channel audio amplifier (Amp 1 & 2) with Amp 3 buffering digital audio clock recovery circuitry.

Use Value: 4.2 nV/√Hz noise floor ensures >95 dB SNR in 24-bit/192 kHz playback; 110 V/µs slew prevents transient intermodulation distortion.

TV Analog Baseband Interface

Professional Video Line Transceiver

Use Scenario: Reconditioning composite video (CVBS) and S-video signals in legacy TV tuner modules.

IC Role / Device Role / Timing Role: Single op-amp (Amp 1) as CVBS driver, Amp 2 as Y/C separator buffer, Amp 3 as chroma trap filter amplifier.

Use Value: 0.07° differential phase eliminates hue shift in NTSC broadcasts; 6 MHz flatness supports full 4.2 MHz luminance bandwidth.

Use Scenario: Bidirectional analog video transmission over 75 Ω coax with remote gain control and fault detection.

IC Role / Device Role / Timing Role: Amp 1 transmits, Amp 2 receives, Amp 3 conditions remote control return signal, Amp 4 monitors cable integrity.

Use Value: 70 dB channel isolation prevents feedback oscillation; standby mode disables transmit path during receive-only intervals.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad high-speed op-amp applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
LMH6644MA/NOPB	Higher supply current (6.5 mA/amp), no standby function, 220 MHz GBW, 300 V/µs slew rate	Better suited for RF IF amplification; lacks video-optimized gain flatness and differential phase specs	Choose when raw bandwidth >150 MHz is mandatory and power budget allows +8 mA total
THS4031DR	Single-channel, 100 MHz GBW, 100 V/µs slew, 7 nV/√Hz noise, no standby	Requires four separate packages for quad functionality; higher noise degrades audio SNR below 90 dB	Prefer for space-constrained designs needing only one high-speed channel with tighter thermal management

Compared with LMH6644MA/NOPB and THS4031DR, the TSH94IDT uniquely balances video-grade AC accuracy, quad integration, and dynamic power control - making it optimal for cost-sensitive, multi-channel consumer video systems where standby-triggered power savings and broadcast compliance are non-negotiable.

Availability

TSH94IDT is available at Aetrix Electronics and suitable for set-top boxes, DVD players, broadcast monitors, and professional video line drivers requiring stable component supply across extended temperature ranges (−40°C to +125°C).

Supply support for TSH94IDT 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 automotive, industrial, and consumer markets.

The TSH94IDT belongs to ST's high-speed precision op-amp product line, engineered specifically for analog signal conditioning in broadcast-quality video and high-fidelity audio systems where speed, noise, and power efficiency must coexist.

FAQ

What is the recommended power supply decoupling for TSH94IDT?

Each V_CC+ (Pins 4, 12) and V_CC− (Pin 16) requires local decoupling with a 10 µF tantalum or aluminum electrolytic capacitor in parallel with a 10 nF ceramic capacitor, placed within 2 mm of the respective pins. Ground connections must route to a solid ground plane to maintain 110 V/µs slew rate integrity and suppress 150 MHz parasitic oscillation.

How does the STANDBY function affect output impedance and signal integrity?

When STANDBY 1 or STANDBY 2 is asserted, the corresponding op-amp's output enters a true high-impedance state (<20 pA leakage), not just reduced drive. This eliminates loading on downstream circuits during multiplexing or power-gating events, preserving signal integrity in shared bus architectures without requiring external analog switches.

Can TSH94IDT drive 75 Ω coaxial video lines directly?

Yes - the TSH94IDT is characterized for 150 Ω loads and can drive 75 Ω lines with minor gain reduction (≈0.5 dB) and maintained 0.03% differential gain. For optimal 75 Ω performance, use series 75 Ω termination at the source (not load) and verify settling time remains <25 ns for 0.1% accuracy in 525-line systems.

Is TSH94IDT qualified for automotive applications?

No - the TSH94IDT is specified for industrial temperature range (−40°C to +125°C) but is not AEC-Q100 qualified. ST offers the TSH94IDT's automotive-grade counterpart, the TSH94IYDT, which undergoes additional stress testing and PPAP documentation for infotainment and ADAS display subsystems.

TSH94IDT Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 16-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Amplifier Type:: General Purpose

Number of Circuits:: 4

Output Type:: -

Slew Rate:: 110V/µs

Gain Bandwidth Product:: 150 MHz

-3db Bandwidth:: -

Current - Input Bias:: 5 µA

Voltage - Input Offset:: 3 mV

Current - Supply:: 4.5mA (x4 Channels)

Current - Output / Channel:: 40 mA

Voltage - Supply Span (Min):: 7 V

Voltage - Supply Span (Max):: 12 V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SO

TSH94IDT FAQ

1.How can I place an order for TSH94IDT through Aetrix?

Please submit a Request for Quotation (RFQ) for TSH94IDT 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 TSH94IDT reliable?

The price and inventory of TSH94IDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSH94IDT is usually 5 days.

3.What payment methods are accepted for TSH94IDT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSH94IDT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSH94IDT?

TSH94IDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSH94IDT 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 TSH94IDT?

For technical support, including TSH94IDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSH94IDT requirements.

6.How does Aetrix verify that TSH94IDT is sourced from the original manufacturer or authorized distributors?

All TSH94IDT 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 TSH94IDT meets industry standards.

7.What is the process for return or replacement of TSH94IDT?

All TSH94IDT units undergo pre-shipment inspection (PSI). If there is an issue with TSH94IDT, 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 TSH94IDT part is unused and in its original packaging.

Return procedure for TSH94IDT:

1.Submit a request within 90 days.

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

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