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Texas Instruments OPA2356AID
- Part No.:
- OPA2356AID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2356AID.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:192
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Product details
Overview
OPA2356AID from Texas Instruments is a dual, high-speed, voltage-feedback CMOS operational amplifier optimized for video and wideband signal conditioning. It delivers 450MHz unity-gain bandwidth, 360V/µs slew rate, rail-to-rail output swing within 100mV of rails, and 0.02% differential gain / 0.05° differential phase-enabling precision NTSC video amplification in broadcast and medical imaging systems.
For engineers reviewing the OPA2356AID datasheet, OPA2356AID pinout, OPA2356AID application, or OPA2356AID equivalent, key selection criteria include its dual-channel independence (–90dB crosstalk at 5MHz), –40°C to +125°C extended temperature operation, SOIC-8 package compatibility, and single-supply capability from 2.5V to 5.5V with ground-sensing input range.
Technical Context
The OPA2356AID implements a fully differential, voltage-feedback architecture with CMOS input stage enabling ultra-low input bias current (3pA typical) and wide common-mode range (100mV below ground to 1.5V below V+). Its internal thermal shutdown activates at 160°C junction temperature and resets at 140°C, supporting robust operation in high-density layouts.
It features independent amplifier cores per channel-no shared bias or signal paths-ensuring <–90dB channel-to-channel crosstalk at 5MHz and eliminating interaction in multi-channel timing-critical applications such as dual ADC input buffering or stereo ultrasound front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 450MHz - enables stable +1V/V video follower configurations without peaking or instability |
| Gain-Bandwidth Product | 200MHz - supports closed-loop gains up to +10 at 20MHz while maintaining phase margin |
| Slew Rate | 360V/µs - preserves fast edge integrity in pulse-amplification and DAC output stages |
| Input Bias Current | 3pA typical - minimizes offset drift in high-impedance photodiode transimpedance or sensor interfaces |
| Differential Gain/Phase | 0.02% / 0.05° - meets broadcast-grade NTSC video fidelity requirements with 150Ω load |
| Rail-to-Rail Output | Within 100mV of rails at 150Ω - maximizes dynamic range in 3.3V or 5V single-supply systems |
| Supply Range | 2.5V to 5.5V single supply - operates directly from standard logic rails without charge pumps |
Pinout & Package
OPA2356AID is housed in an 8-pin SOIC (D) package per JEDEC MS-012, with 1.27mm pitch, 5.00mm × 6.20mm body, and exposed pad not present. Thermal resistance θJA = 125°C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input B (–IN B) | High-impedance CMOS node for second amplifier's negative feedback path |
| 2 | Non-Inverting Input B (+IN B) | Ground-referenced input capable of accepting signals down to –100mV below V– |
| 3 | Output B (OUT B) | Capable of ±60mA continuous drive into 150Ω; rail-to-rail swing supports full-scale analog I/O |
| 4 | V– (GND) | Power return reference; common to both amplifiers; supports true single-supply operation |
| 5 | Output A (OUT A) | Independent output stage; no crosstalk coupling to OUT B above –90dB at 5MHz |
| 6 | Non-Inverting Input A (+IN A) | Matches Pin 2 electrical behavior; enables dual-channel matched signal conditioning |
| 7 | Inverting Input A (–IN A) | Matches Pin 1 functionality; supports identical feedback network design for both channels |
| 8 | V+ | Positive supply rail; accepts 2.5V–5.5V; internal ESD diodes clamp to V+ and V– |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stability | Guaranteed stable at G = +1 without external compensation-reduces BOM count in video buffers |
| Input voltage range includes ground | Accepts inputs 100mV below V– (ground), enabling direct connection to baseband sensors and DACs |
| Thermal shutdown protection | Auto-shutdown at 160°C junction temperature; resumes operation after cooling to 140°C |
| Low noise density | 5.8nV/√Hz at 1MHz-preserves SNR in low-level signal amplification before ADC sampling |
| 0.1dB gain flatness | 75MHz at G = +2-ensures amplitude consistency across HD video bandwidth (up to 72MHz) |
Applications
| Video Processing | Ultrasound Imaging |
|---|---|
Use Scenario: Amplifying composite NTSC/PAL video signals in broadcast encoders and set-top box outputs. IC Role / Device Role / Timing Role: Dual-channel video driver with simultaneous luminance/chrominance path buffering. Use Value: 0.02% differential gain and 0.05° phase error preserve color fidelity; rail-to-rail output drives 75Ω back-terminated cables directly. |
Use Scenario: Conditioning analog echo-return signals in portable ultrasound beamformers. IC Role / Device Role / Timing Role: Low-noise, high-bandwidth dual-channel receiver front-end amplifier before ADC digitization. Use Value: 5.8nV/√Hz input noise and 450MHz bandwidth maintain time-of-flight resolution for sub-millimeter tissue depth detection. |
| Optical Networking | High-Speed Data Acquisition |
Use Scenario: Driving tunable laser bias control loops in DWDM transceivers. IC Role / Device Role / Timing Role: Precision dual op-amp providing matched current/voltage control paths for wavelength stabilization. Use Value: Independent dual cores eliminate crosstalk-induced wavelength jitter; 360V/µs slew rate enables fast laser modulation response. |
Use Scenario: Buffering dual-channel ADC inputs in 100MSPS+ data acquisition systems. IC Role / Device Role / Timing Role: Single-supply input driver with ground-sensing inputs and rail-to-rail output for full-scale analog capture. Use Value: 200MHz GBW and 30ns 0.1% settling support accurate sampling of fast transient waveforms without aperture uncertainty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2355AIDGKR | Includes shutdown mode; 200MHz GBW; rail-to-rail input/output; higher quiescent current (10.5mA/channel) | Better suited for power-gated systems requiring on-demand activation; less optimal for always-on video paths | Select when system-level power sequencing mandates disable capability and input rail-to-rail is required beyond OPA2356AID's ground-inclusive input |
| OPA2631UA | 75MHz GBW; bipolar input; higher input bias current (1.2µA); no thermal shutdown | Limited to lower-frequency analog filtering and non-critical video; unsuitable for precision photodiode or ultrasound front-ends | Choose only for cost-sensitive, non-precision applications where bandwidth <100MHz suffices and CMOS input advantages are unnecessary |
Compared with OPA2356AID, OPA2355AIDGKR adds functional flexibility via shutdown control but trades off slightly higher power and reduced video performance (0.05% diff gain), while OPA2631UA offers lower cost at the expense of bandwidth, noise, and thermal safety-making OPA2356AID the optimal balance for high-fidelity, dual-channel, wideband analog signal chains.
Availability
OPA2356AID is available at Aetrix Electronics and suitable for video processing, ultrasound imaging, and optical networking applications requiring stable component supply across industrial and medical product lifecycles.
Supply support for OPA2356AID 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
Texas Instruments is a global semiconductor leader delivering analog and embedded processing solutions with over 90 years of innovation in precision analog design and manufacturing excellence.
The OPA2356AID belongs to TI's high-speed precision op-amp product line, engineered specifically for demanding video, medical imaging, and communications signal conditioning where bandwidth, fidelity, and reliability are critical.
FAQ
What is the operating temperature range for OPA2356AID?
The OPA2356AID is specified over an extended industrial temperature range of –40°C to +125°C. Its absolute maximum operating temperature is +150°C, and thermal shutdown activates at 160°C junction temperature-making it suitable for under-hood automotive auxiliary modules and sealed medical equipment enclosures where ambient heat buildup occurs.
Does OPA2356AID support single-supply operation?
Yes, OPA2356AID supports true single-supply operation from 2.5V to 5.5V. Its input common-mode range extends 100mV below ground (V–), and its output swings within 100mV of both rails-enabling direct interfacing with 3.3V or 5V microcontrollers, ADCs, and DACs without level-shifting circuitry.
What is the channel-to-channel crosstalk specification for OPA2356AID?
The OPA2356AID achieves –90dB channel-to-channel crosstalk at 5MHz, verified in the datasheet's Typical Characteristics section. This isolation results from completely independent circuitry per channel-no shared bias networks or substrate coupling-critical for dual-path applications like stereo audio, differential ADC drivers, or parallel sensor signal chains.
Can OPA2356AID drive a 75Ω video cable directly?
Yes, OPA2356AID is designed to drive standard back-terminated 75Ω video cables. When properly terminated, the cable presents a purely resistive 150Ω load (75Ω source + 75Ω termination), which the OPA2356AID handles with full 0.02% differential gain accuracy and minimal group delay distortion-eliminating need for external line drivers in SD/HD video routing.
Is OPA2356AID pin-compatible with other dual op-amps in SOIC-8?
No documented pin-compatible replacements exist for OPA2356AID in SOIC-8. While pin count and package match industry-standard dual op-amps, its unique pinout (V– on Pin 4, dual outputs on Pins 3 and 5) differs from conventional dual op-amp configurations. PCB layout must follow TI's recommended SOIC-8 mapping shown in SBOS212A Figure 1.
OPA2356AID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 360V/µs
- Gain Bandwidth Product:
- 200 MHz
- -3db Bandwidth:
- 450 MHz
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 8.3mA (x2 Channels)
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA2356AID FAQ
1.How can I place an order for OPA2356AID through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2356AID 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 OPA2356AID reliable?
The price and inventory of OPA2356AID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2356AID is usually 5 days.
3.What payment methods are accepted for OPA2356AID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2356AID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2356AID?
OPA2356AID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2356AID 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 OPA2356AID?
For technical support, including OPA2356AID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2356AID requirements.
6.How does Aetrix verify that OPA2356AID is sourced from the original manufacturer or authorized distributors?
All OPA2356AID 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 OPA2356AID meets industry standards.
7.What is the process for return or replacement of OPA2356AID?
All OPA2356AID units undergo pre-shipment inspection (PSI). If there is an issue with OPA2356AID, 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 OPA2356AID part is unused and in its original packaging.
Return procedure for OPA2356AID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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