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Texas Instruments OPA354AIDDAG3
- Part No.:
- OPA354AIDDAG3
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA354AIDDAG3.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT 8SOPWRPAD
- Quantity:
- Payment:
- Shipping:
Inventory:368
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Product details
Overview
OPA354AIDDAG3 from Texas Instruments is a single-channel, rail-to-rail input/output, voltage-feedback CMOS operational amplifier optimized for high-speed video and precision analog signal conditioning. It delivers 250-MHz unity-gain bandwidth, 150 V/µs slew rate, 6.5 nV/√Hz input voltage noise, ±100 mA output current, and operates from 2.5 V to 5.5 V supply. It is used in RGB video line drivers, photodiode transimpedance amplifiers, and ADC/DAC interface circuits.
For engineers reviewing the OPA354AIDDAG3 datasheet, OPA354AIDDAG3 pinout, OPA354AIDDAG3 application, or OPA354AIDDAG3 equivalent, key selection criteria include its 100-mA continuous output drive into 75-Ω video loads, 0.02% differential gain error for NTSC video, 40-MHz 0.1-dB gain flatness, thermal shutdown at 160°C, and HSOP-8 PowerPAD™ package with enhanced thermal performance.
Technical Context
The OPA354AIDDAG3 employs a complementary CMOS input stage enabling rail-to-rail input operation-extending 100 mV beyond both supply rails-and a Class AB output stage delivering rail-to-rail swing within 100 mV of rails under 1-kΩ load. Its unity-gain stability supports direct use as a voltage follower in high-frequency signal paths.
Designed for single-supply operation down to 2.5 V, it maintains full dynamic range across –40°C to +125°C. The HSOP-8 PowerPAD™ package features an exposed thermal pad (connected to V– or left floating) that reduces junction-to-board thermal resistance to 26.5°C/W, critical for sustained 100-mA output current delivery without thermal derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 250 MHz - enables stable closed-loop operation up to 250 MHz at G = +1, suitable for HD video and fast pulse amplification |
| Slew Rate | 150 V/µs - supports clean 2-V step response in ≤11 ns (10%–90%), minimizing distortion in high-slew transient signals |
| Input Voltage Noise | 6.5 nV/√Hz at 1 MHz - low enough to preserve SNR in photodiode transimpedance and precision sensor front-ends |
| Output Current | ±100 mA continuous - drives 75-Ω back-terminated video cables or laser diodes without external buffering |
| Differential Gain/Phase | 0.02% / 0.09° (NTSC, RL = 150 Ω) - meets broadcast-grade video fidelity requirements for RGB and composite video |
| Supply Range | 2.5 V to 5.5 V - compatible with modern low-voltage systems including USB-powered and battery-operated equipment |
| Thermal Shutdown | Activates at 160°C, resets at 140°C - protects against sustained overload or poor PCB thermal design |
Pinout & Package
OPA354AIDDAG3 is packaged in an 8-pin HSOP (Heat Sink Overmolded Package) with PowerPAD™, measuring 4.89 mm × 3.90 mm. The exposed thermal pad must be connected to V– (negative supply) or left electrically floating per TI recommendation to optimize thermal performance and reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Amplifier output terminal; capable of sourcing/sinking ±100 mA continuously into resistive loads |
| 2 | –IN | Inverting input; part of complementary CMOS input pair enabling rail-to-rail common-mode range |
| 3 | +IN | Noninverting input; matched to –IN for low offset and high CMRR (>66 dB at 25°C) |
| 4 | V– | Negative supply rail; thermal pad connection point for PowerPAD™; must be tied to system ground or negative rail |
| 5 | NC | No internal connection; electrically isolated; may be left unconnected or grounded for mechanical stability |
| 6 | OUT | Redundant output pin (duplicate of Pin 1); improves current sharing and reduces bond wire inductance in high-current paths |
| 7 | V+ | Positive supply rail; accepts 2.5 V to 5.5 V; PSRR >66 dB ensures immunity to supply ripple |
| 8 | NC | No internal connection; electrically isolated; no functional role in circuit operation |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Input/Output | Common-mode input extends (V−) −0.1 V to (V+) +0.1 V; output swings within 100 mV of rails at 1-kΩ load - maximizes dynamic range in low-voltage systems |
| High Output Drive | ±100 mA continuous output current - eliminates need for external buffer stages when driving 75-Ω video lines or laser diodes |
| Video-Optimized Performance | 0.02% differential gain / 0.09° differential phase error and 40-MHz 0.1-dB gain flatness - meets SMPTE/ITU broadcast standards |
| Low Input Bias Current | 3 pA typical - preserves signal integrity in high-impedance photodiode and piezoelectric sensor interfaces |
| Thermal Protection | Junction shutdown at 160°C with automatic recovery at 140°C - prevents permanent damage during overcurrent or poor heatsinking |
Applications
| RGB Video Line Driver | Photodiode Transimpedance Amplifier |
|---|---|
|
Use Scenario: Driving RGB analog video signals over 75-Ω coaxial cables in medical imaging displays and industrial HMI panels. IC Role / Device Role / Timing Role: Single-supply noninverting amplifier with AC-coupled input and back-terminated 75-Ω output, configured for G = +2. Use Value: Maintains 0.02% differential gain and 0.09° phase accuracy across DC–40 MHz, ensuring color fidelity and edge sharpness in real-time video streams. |
Use Scenario: Converting weak current from low-light photodiode sensors (e.g., in spectrophotometers or smoke detectors) into stable voltage output. IC Role / Device Role / Timing Role: Transimpedance amplifier with 1-MΩ feedback resistor and 3-pF compensation capacitor, operating at 2.7 V supply. Use Value: 6.5 nV/√Hz input noise and 3 pA bias current minimize signal degradation, enabling detection of sub-nA photocurrents with >80 dB SNR. |
| Analog-to-Digital Converter Input Buffer | Laser Diode Driver |
|
Use Scenario: Buffering high-impedance sensor outputs before sampling by 12-bit SAR ADCs such as ADS7816 in portable test equipment. IC Role / Device Role / Timing Role: Unity-gain voltage follower with 250-MHz bandwidth, placed directly at ADC input to prevent charge kickback and settling errors. Use Value: 30 ns 0.1% settling time for 2-V steps ensures full 12-bit accuracy even at 1 MSPS conversion rates without acquisition delay penalties. |
Use Scenario: Precision current control for tunable laser diodes in optical networking modules requiring stable optical power output. IC Role / Device Role / Timing Role: High-speed transconductance amplifier with external current-sense resistor, delivering 100-mA peak modulation current. Use Value: 150 V/µs slew rate supports <10 ns rise/fall times for digital modulation; thermal shutdown prevents diode destruction during fault conditions. |
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 |
|---|---|---|---|
| OPA355IDBVR | Rail-to-rail output only (not input); 200-MHz GBW; lower quiescent current (3.5 mA vs 4.9 mA); SOT-23-5 package | Less suitable for DC-coupled input stages or wide common-mode signal capture; better for space-constrained, low-power buffer roles | Choose OPA355IDBVR when board area is critical and rail-to-rail input is not required; avoid where input offset drift or differential phase matters |
| LMH6629MA/NOPB | Higher 1.5-GHz GBW but higher 10.5-mA IQ; bipolar input (2 µA IB vs 3 pA); no thermal shutdown; SOIC-8 package | Better for RF IF amplification above 100 MHz; unsuitable for photodiode or precision DC-coupled designs due to input bias and noise | Choose LMH6629MA/NOPB only for ultra-wideband small-signal gain; prefer OPA354AIDDAG3 for video fidelity, low-noise sensing, or thermal safety-critical use |
Compared with OPA355IDBVR and LMH6629MA/NOPB, the OPA354AIDDAG3 uniquely balances 250-MHz bandwidth, rail-to-rail I/O, 3-pA input bias, integrated thermal protection, and 75-Ω video drive capability-making it the only option among the three qualified for broadcast-grade analog video and low-noise photodiode amplification in a single device.
Availability
OPA354AIDDAG3 is available at Aetrix Electronics and suitable for video processing, optical networking, and photodiode transimpedance amplifier applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for OPA354AIDDAG3 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 specializing in analog and embedded processing technologies, with decades of expertise in high-performance op amps and precision signal chain solutions.
The OPAx354 family was designed specifically for demanding high-speed analog applications-including broadcast video, ultrasound imaging, and optical communications-where bandwidth, output drive, and video fidelity cannot be compromised.
FAQ
What is the maximum continuous output current specification for OPA354AIDDAG3?
The OPA354AIDDAG3 is specified for ±100 mA continuous output current into resistive loads at TA = 25°C and VS = 5 V. This rating assumes proper PCB thermal design using the PowerPAD™; derating applies above 85°C ambient. Peak short-circuit current reaches ~200 mA, triggering thermal shutdown if sustained.
Does OPA354AIDDAG3 support true rail-to-rail input operation?
Yes. The OPA354AIDDAG3 features a complementary CMOS input stage allowing common-mode voltage range from (V−) −0.1 V to (V+) +0.1 V-extending 100 mV beyond both supply rails. This enables accurate amplification of signals near ground or V+ in single-supply systems without level-shifting circuitry.
Can OPA354AIDDAG3 drive a 75-Ω video cable directly?
Yes. When configured as a back-terminated line driver (e.g., 75-Ω series resistor at output), the OPA354AIDDAG3 delivers 0.02% differential gain and 0.09° differential phase error per NTSC standard. Its ±100 mA output drive and 40-MHz 0.1-dB gain flatness ensure broadcast-quality RGB or composite video signal integrity.
What is the purpose of the NC pins on the OPA354AIDDAG3 HSOP-8 package?
Pins 5 and 8 of the OPA354AIDDAG3 are designated NC (no internal connection). They are electrically isolated from die functionality and may be left unconnected or grounded solely for mechanical reinforcement or EMI shielding-TI confirms no electrical benefit or risk from either choice.
How does the PowerPAD™ thermal pad affect OPA354AIDDAG3 performance?
The PowerPAD™ on the OPA354AIDDAG3 reduces RθJB (junction-to-board) to 26.5°C/W-over 60% lower than standard SOIC packages. When soldered to a thermal copper plane, it enables sustained ±100 mA output without thermal throttling, directly supporting video and laser diode drive applications where thermal margin is critical.
OPA354AIDDAG3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-PowerSOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 150V/µs
- Gain Bandwidth Product:
- 100 MHz
- -3db Bandwidth:
- 250 MHz
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 4.9mA
- 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-SO PowerPad
OPA354AIDDAG3 FAQ
1.How can I place an order for OPA354AIDDAG3 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA354AIDDAG3 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 OPA354AIDDAG3 reliable?
The price and inventory of OPA354AIDDAG3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA354AIDDAG3 is usually 5 days.
3.What payment methods are accepted for OPA354AIDDAG3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA354AIDDAG3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA354AIDDAG3?
OPA354AIDDAG3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA354AIDDAG3 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 OPA354AIDDAG3?
For technical support, including OPA354AIDDAG3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA354AIDDAG3 requirements.
6.How does Aetrix verify that OPA354AIDDAG3 is sourced from the original manufacturer or authorized distributors?
All OPA354AIDDAG3 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 OPA354AIDDAG3 meets industry standards.
7.What is the process for return or replacement of OPA354AIDDAG3?
All OPA354AIDDAG3 units undergo pre-shipment inspection (PSI). If there is an issue with OPA354AIDDAG3, 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 OPA354AIDDAG3 part is unused and in its original packaging.
Return procedure for OPA354AIDDAG3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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