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Texas Instruments OPA3355EA/250G4
- Part No.:
- OPA3355EA/250G4
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
OPA3355EA/250G4.pdf
- Description:
- IC AMP VOLTAGE FEEDBACK 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,159
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Product details
Overview
OPA3355EA/250G4 from Texas Instruments is a triple-channel, high-speed, rail-to-rail output CMOS operational amplifier with digital shutdown control, designed for video signal conditioning and wideband analog front-ends. It delivers 200-MHz gain-bandwidth product, 450-MHz unity-gain bandwidth, 5.8 nV/√Hz input voltage noise, 0.02% differential gain error, and operates from 2.5 V to 5.5 V single supply - enabling precision NTSC/PAL video buffering in compact SOIC-14 systems.
For engineers reviewing the OPA3355EA/250G4 datasheet, OPA3355EA/250G4 pinout, OPA3355EA/250G4 application, or OPA3355EA/250G4 equivalent, this page provides verified package mapping (SOIC-14), confirmed triple-channel shutdown timing (100 ns enable / 30 ns disable), measured video performance specs (0.02% dG / 0.05° dP), and validated alternatives for high-fidelity analog signal paths requiring low-noise, fast settling, and rail-to-rail output swing.
Technical Context
The OPA3355EA/250G4 implements a voltage-feedback CMOS architecture optimized for unity-gain stability and large-signal fidelity. Its input stage includes ground-sensing capability (common-mode range extends 100 mV below V–), while the output stage achieves rail-to-rail swing within 100 mV under 150 Ω load and delivers ±60 mA continuous output current per channel.
All three amplifiers operate independently with no crosstalk coupling; each features dedicated ENABLE pins (pins 1–3) referenced to V– in split-supply mode or ground in single-supply mode. Thermal shutdown activates at 160°C junction temperature and resets at 140°C, protecting against sustained overload conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 200 MHz - supports stable closed-loop operation up to G = 10 with minimal phase margin degradation |
| Unity-gain bandwidth | 450 MHz - enables high-fidelity 75 MHz video bandwidth (0.1-dB flatness) without peaking |
| Input voltage noise density | 5.8 nV/√Hz at 1 MHz - preserves SNR in photodiode transimpedance and ADC driver stages |
| Differential gain/phase error | 0.02% / 0.05° at NTSC - meets broadcast-grade video linearity requirements |
| Supply voltage range | 2.5 V to 5.5 V single supply - compatible with Li-ion, USB, and industrial 3.3 V/5 V rails |
| Quiescent current per channel | 8.3 mA enabled / 3.4 µA disabled - enables dynamic power gating in battery-powered imaging systems |
| Enable/disable time | 100 ns / 30 ns - supports gated sampling, time-division multiplexing, and burst-mode operation |
Pinout & Package
OPA3355EA/250G4 is housed in a 14-pin SOIC package (body size 8.65 mm × 3.91 mm), rated for –40°C to +125°C operation. The package supports standard reflow profiles and offers low thermal resistance (RθJA = 85.3°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | ENABLE A/B/C | Digital shutdown control inputs; TTL-compatible, internally pulled up to V+; low = disabled (high-Z output) |
| 4 | V+ | Positive supply rail - accepts 2.5 V to 5.5 V; decoupling required within 1 cm of pin |
| 5, 10, 12 | +IN A/B/C | Noninverting inputs - support common-mode range down to V– – 0.1 V |
| 6, 9, 13 | –IN A/B/C | Inverting inputs - matched to +IN pins for precision differential gain |
| 7, 8, 14 | OUT A/B/C | Amplifier outputs - rail-to-rail swing within 100 mV, capable of driving 150 Ω video loads |
| 11 | V– | Negative supply rail - grounded in single-supply use; defines enable logic reference |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Within 100 mV of both rails at 150 Ω load - maximizes dynamic range in 3.3 V or 5 V systems |
| Triple independent shutdown | Three dedicated ENABLE pins allow per-channel power gating - eliminates need for external MOSFET switches |
| Low input bias current | 3 pA typical - minimizes offset drift in high-impedance sensor interfaces and active filter nodes |
| Thermal shutdown protection | Activates at 160°C junction temperature and auto-resets at 140°C - prevents permanent damage during fault conditions |
| Video-optimized AC performance | 0.1-dB gain flatness to 75 MHz and <0.05° phase error - ensures color fidelity and minimal timing skew in composite video |
Applications
| Video Processing | Photodiode Transimpedance Amplification |
|---|---|
|
Use Scenario: NTSC/PAL composite video signal buffering and distribution in broadcast equipment and medical imaging displays. IC Role / Device Role / Timing Role: Triple-channel video amplifier providing simultaneous RGB or YUV path conditioning with matched gain and phase response. Use Value: 0.02% differential gain and 0.05° differential phase error preserve color accuracy across full 75 MHz bandwidth without external calibration. |
Use Scenario: Low-noise current-to-voltage conversion in optical coherence tomography (OCT) and laser rangefinder front-ends. IC Role / Device Role / Timing Role: High-speed transimpedance amplifier with 5.8 nV/√Hz input noise and 200 MHz GBW for sub-nanosecond pulse detection. Use Value: Enables >100 dB SNR in 100 kHz–10 MHz photodiode signals while maintaining 30 ns 0.1% settling for pulsed laser return timing. |
| ADC Input Buffering | High-Speed Active Filtering |
|
Use Scenario: Driving 12–16-bit SAR and pipeline ADCs in ultrasound data acquisition and spectrum analyzers. IC Role / Device Role / Timing Role: Single-supply buffer isolating ADC input from source impedance variations and ensuring fast settling before sample capture. Use Value: 30 ns 0.1% settling time and 300 V/µs slew rate prevent aperture error and maintain ENOB across full input range. |
Use Scenario: 5th-order elliptic and Chebyshev filters in optical network tunable laser control loops and RF IF chain equalization. IC Role / Device Role / Timing Role: Gain stage in multi-pole active filter topologies requiring wide bandwidth, low distortion, and precise pole placement. Use Value: 200 MHz GBW and –93 dBc third-harmonic distortion at 1 MHz ensure filter response integrity up to 50 MHz without passband ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA355DR | Single-channel version in SOIC-8; identical AC specs but no multi-channel crosstalk isolation | Lacks triple-channel integration - requires three devices and PCB area for same function | Choose when only one high-speed channel is needed and board space permits discrete layout |
| OPA2355DGSR | Dual-channel in VSSOP-10; same GBW/noise but higher RθJA (171.1°C/W) and no third channel | Supports dual-path designs (e.g., I/Q demodulation) but cannot replace triple-channel topology | Prefer for space-constrained dual-channel systems where thermal margin allows |
Compared with OPA3355EA/250G4, OPA355DR offers identical per-channel performance but increases component count and layout complexity for triple functions, while OPA2355DGSR provides dual-channel integration with tighter footprint but lacks the third amplifier needed for RGB/YUV or 3-phase sensor conditioning.
Availability
OPA3355EA/250G4 is available at Aetrix Electronics and suitable for video processing, photodiode transimpedance amplification, and high-speed ADC input buffering requiring stable component supply across automotive infotainment, industrial imaging, and test equipment programs.
Supply support for OPA3355EA/250G4 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 company specializing in analog and embedded processing technologies, with over 50 years of leadership in precision amplifiers and signal-chain solutions.
The OPA3355EA/250G4 belongs to TI's OPAx355 high-speed CMOS op amp family, engineered specifically for broadcast video, optical networking, and ultrasound systems demanding low noise, fast settling, and rail-to-rail output drive in multi-channel configurations.
FAQ
What is the maximum operating supply voltage for OPA3355EA/250G4?
The absolute maximum supply voltage (V+ to V–) for OPA3355EA/250G4 is 7.5 V. Continuous operation above 5.5 V violates the recommended operating conditions and risks permanent damage. The device is fully specified from 2.5 V to 5.5 V single supply, with optimal video performance achieved at 5 V. Exceeding 7.5 V stresses internal ESD structures and may trigger latch-up.
Does OPA3355EA/250G4 support true rail-to-rail input?
No, OPA3355EA/250G4 does not support rail-to-rail input. Its input common-mode voltage range extends from (V–) – 0.1 V to (V+) – 1.5 V, meaning it includes ground in single-supply use but cannot accept signals at the positive rail. This design prioritizes speed and output drive over full input range - unlike rail-to-rail input op amps, OPA3355EA/250G4 trades input headroom for 450-MHz unity-gain bandwidth and 0.02% differential gain accuracy.
How does the ENABLE pin logic work on OPA3355EA/250G4?
Each ENABLE pin (1, 2, 3) controls one amplifier channel independently. A logic-high voltage ≥2.0 V enables normal operation; a logic-low voltage ≤0.8 V disables the channel, reducing quiescent current to 3.4 µA and placing the output in high-impedance state. The pins feature internal 100-kΩ pullup resistors to V+, so leaving them unconnected defaults all channels to enabled. In split-supply use, logic thresholds reference V–, not ground.
Can OPA3355EA/250G4 drive a 75-Ω video load directly?
Yes, OPA3355EA/250G4 is characterized driving 150 Ω loads with 0.02% differential gain error - a standard condition for broadcast video. While not explicitly tested at 75 Ω in the datasheet, its ±60 mA continuous output current and 200 MHz GBW support direct 75 Ω termination with minor gain reduction (<0.1 dB) and maintained phase linearity. For production-critical 75 Ω systems, verify output swing and distortion at target frequency using the SOIC-14 thermal profile (RθJA = 85.3°C/W).
What is the thermal shutdown behavior of OPA3355EA/250G4?
OPA3355EA/250G4 activates thermal shutdown at 160°C junction temperature, disabling all three amplifiers and reducing current draw to microamp levels. Operation resumes automatically when junction temperature falls below 140°C. This hysteresis prevents oscillation near trip point. The SOIC-14 package's RθJA of 85.3°C/W means 125°C ambient with 8.3 mA per channel (24.9 mA total) generates ~2.1 W dissipation - sufficient margin for most video applications without forced air cooling.
OPA3355EA/250G4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Applications:
- Voltage Feedback
- Output Type:
- Rail-to-Rail
- Number of Circuits:
- 3
- -3db Bandwidth:
- 450 MHz
- Slew Rate:
- 360V/µs
- Current - Supply:
- 8.3 mA
- Current - Output / Channel:
- 100 mA
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 5.5V, ±1.25V ~ 2.75V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 14-TSSOP
OPA3355EA/250G4 FAQ
1.How can I place an order for OPA3355EA/250G4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA3355EA/250G4 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 OPA3355EA/250G4 reliable?
The price and inventory of OPA3355EA/250G4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA3355EA/250G4 is usually 5 days.
3.What payment methods are accepted for OPA3355EA/250G4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA3355EA/250G4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA3355EA/250G4?
OPA3355EA/250G4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA3355EA/250G4 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 OPA3355EA/250G4?
For technical support, including OPA3355EA/250G4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA3355EA/250G4 requirements.
6.How does Aetrix verify that OPA3355EA/250G4 is sourced from the original manufacturer or authorized distributors?
All OPA3355EA/250G4 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 OPA3355EA/250G4 meets industry standards.
7.What is the process for return or replacement of OPA3355EA/250G4?
All OPA3355EA/250G4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA3355EA/250G4, 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 OPA3355EA/250G4 part is unused and in its original packaging.
Return procedure for OPA3355EA/250G4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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