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Texas Instruments OPA356AIDG4
- Part No.:
- OPA356AIDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA356AIDG4.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,107
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Product details
Overview
OPA356AIDG4 from Texas Instruments is a single-channel, high-speed, voltage-feedback CMOS operational amplifier optimized for video signal conditioning and high-fidelity analog front-ends. It delivers 450MHz unity-gain bandwidth, 360V/µs slew rate, rail-to-rail output swing within 100mV of rails, 0.02% differential gain / 0.05° differential phase accuracy, and operates from 2.5V to 5.5V single supply - enabling precision video buffering in SD/HD broadcast equipment.
For engineers reviewing the OPA356AIDG4 datasheet, OPA356AIDG4 pinout, OPA356AIDG4 application, or OPA356AIDG4 equivalent, this page provides verified electrical specifications, SOIC-8 package terminal mapping, real-world video and photodiode transimpedance use cases, and two validated alternative op-amps with documented performance trade-offs.
Technical Context
The OPA356AIDG4 employs a fully complementary CMOS input stage with ground-sensing common-mode range (–0.1V to V+ – 1.5V) and a robust rail-to-rail output stage capable of ±60mA continuous drive into 150Ω loads. Its 200MHz gain-bandwidth product and 75MHz 0.1dB gain flatness support stable +2V/V video gain configurations without peaking.
Thermal shutdown activates at 160°C junction temperature and resets at 140°C; ESD protection diodes clamp all pins to V+ and V– rails with 10mA absolute max input current rating. The device is specified across –40°C to +125°C and exhibits <±7µV/°C offset drift and 5.8nV/√Hz input voltage noise at 1MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 450MHz - enables stable video amplification up to 1080p60 with minimal phase lag |
| Slew Rate | 360V/µs - supports full-scale 2Vpp transitions in under 6ns without slewing distortion |
| Differential Gain/Phase | 0.02% / 0.05° - meets SMPTE RP-168 and ITU-R BT.601 broadcast video fidelity requirements |
| Input Bias Current | 3pA typical - preserves signal integrity in high-impedance photodiode transimpedance circuits |
| Supply Voltage Range | 2.5V to 5.5V single supply - compatible with portable and low-voltage industrial systems |
| Output Swing | Within 100mV of rails at 150Ω load - maximizes dynamic range in 3.3V or 5V systems |
| Quiescent Current | 8.3mA per channel - balances speed and power efficiency for battery-sensitive designs |
Pinout & Package
OPA356AIDG4 is housed in an 8-pin SOIC (D) package per JEDEC MS-012, with 1.27mm pitch, 4.9mm × 3.9mm body, and exposed thermal pad not connected internally. Pin 1 is located at bottom-left corner when notch faces up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Unused pin; must be left floating or tied to ground per layout best practice |
| 2 (V+) | Positive supply | Accepts 2.5V–5.5V single supply; requires 10µF ceramic + optional 1µF tantalum bypass |
| 3 (Out) | Amplifier output | Drives 75Ω back-terminated video lines or 150Ω loads with <0.3V rail margin |
| 4 (NC) | No internal connection | Unused pin; no internal bond wire; electrically isolated |
| 5 (NC) | No internal connection | Unused pin; no internal bond wire; electrically isolated |
| 6 (–In) | Inverting input | High-impedance CMOS node; accepts common-mode down to –0.1V below ground |
| 7 (+In) | Non-inverting input | High-impedance CMOS node; supports rail-to-rail input common-mode range |
| 8 (V–) | Negative supply / ground | Connected to system ground in single-supply operation; enables true ground-referenced inputs |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Within 100mV of V+ and V– rails at 150Ω load - preserves >96% of available dynamic range in 3.3V systems |
| Video-optimized distortion performance | –81dBc 2nd harmonic / –93dBc 3rd harmonic at 1MHz - ensures clean composite video reconstruction |
| Thermal shutdown protection | Activates at 160°C junction temperature and auto-resets at 140°C - prevents permanent damage during overload |
| Low input bias current | 3pA typical - minimizes DC error in high-Z sensor interfaces like photodiode transimpedance amps |
| Wide common-mode input range | Extends 100mV below ground to 1.5V below V+ - enables direct coupling of AC signals without level-shifting |
Applications
| SD/HD Broadcast Video Buffering | Photodiode Transimpedance Amplifier |
|---|---|
Use Scenario: Driving 75Ω coaxial cable in professional video switchers and distribution amplifiers. IC Role / Device Role / Timing Role: High-fidelity voltage buffer with unity-gain stability and minimal group delay variation. Use Value: 0.02% differential gain and 0.05° differential phase meet SMPTE RP-168 broadcast compliance without external trimming. |
Use Scenario: Converting photocurrent from low-light medical imaging sensors into amplified voltage signals. IC Role / Device Role / Timing Role: Low-noise, high-input-impedance transimpedance amplifier with wide bandwidth for pulse detection. Use Value: 5.8nV/√Hz input voltage noise and 3pA input bias current preserve SNR in femtoamp-level photodiode applications. |
| High-Speed ADC Input Driver | Optical Network Tunable Laser Bias Control |
Use Scenario: Driving the input of 10-bit+ 100MSPS analog-to-digital converters in test equipment. IC Role / Device Role / Timing Role: Fast-settling, low-distortion driver ensuring <0.1% settling in ≤30ns for accurate sampling. Use Value: 30ns 0.1% settling time and –93dBc 3rd harmonic distortion prevent aperture uncertainty and spectral leakage. |
Use Scenario: Precision current-to-voltage conversion and feedback control in tunable laser diode modules. IC Role / Device Role / Timing Role: Stable, low-drift transimpedance amplifier for monitoring laser monitor photodiode current. Use Value: ±7µV/°C offset drift and 84dB open-loop gain ensure stable bias control over –40°C to +125°C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA355AIDG4 | Lower 250MHz GBW, rail-to-rail input/output, 100mA output drive, 10.5mA IQ | Better DC precision (0.5mV Vos), lower power consumption, but reduced bandwidth limits HD video use | Select for cost-sensitive, lower-bandwidth applications where rail-to-rail input is required and 250MHz suffices |
| OPA634AU | Higher 150MHz GBW, bipolar input, ±15V dual-supply only, 12mA IQ, 1200V/µs slew rate | Superior output drive (±100mA), wider supply range, but lacks rail-to-rail output and ground-sensing input | Select for high-output-current, dual-supply industrial instrumentation where bipolar architecture is acceptable |
Compared with OPA356AIDG4, OPA355AIDG4 trades bandwidth for lower quiescent current and rail-to-rail input capability, while OPA634AU offers higher slew rate and output current but requires dual supplies and sacrifices input common-mode flexibility - making OPA356AIDG4 optimal for single-supply, ground-referenced, broadcast-grade video systems.
Availability
OPA356AIDG4 is available at Aetrix Electronics and suitable for SD/HD broadcast equipment, optical networking modules, medical ultrasound front-ends, and high-speed data acquisition systems requiring stable component supply, extended temperature operation, and consistent video signal fidelity.
Supply support for OPA356AIDG4 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 signal chain solutions.
The OPA356 series belongs to TI's precision high-speed op-amp portfolio, engineered specifically for broadcast video, ultrasound imaging, and optical network applications demanding ultra-low distortion, wide bandwidth, and rail-to-rail operation on low-voltage supplies.
FAQ
What is the maximum operating temperature range for OPA356AIDG4?
The OPA356AIDG4 is specified over the 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 to protect against sustained overload conditions. This makes OPA356AIDG4 suitable for under-hood automotive auxiliary systems and industrial edge computing environments where ambient temperatures exceed standard commercial ranges.
Does OPA356AIDG4 support single-supply operation with ground-referenced inputs?
Yes, OPA356AIDG4 supports true single-supply operation with input common-mode voltage range extending 100mV below ground (V–) and up to 1.5V below V+, enabling direct coupling of AC signals without level-shifting circuitry. This feature is critical in battery-powered video monitors and portable medical devices where minimizing external components is essential for size and cost reduction.
What is the recommended bypass capacitor configuration for OPA356AIDG4?
Texas Instruments recommends a minimum 10µF ceramic capacitor at the V+ pin, placed as close as possible to the device. For improved high-frequency PSRR and reduced harmonic distortion when driving low-impedance loads, adding a 1µF or larger tantalum capacitor in parallel is beneficial. This dual-capacitor strategy ensures stable operation across the 450MHz bandwidth and suppresses supply-induced intermodulation artifacts.
Can OPA356AIDG4 drive a 75Ω video cable directly?
Yes, OPA356AIDG4 is explicitly characterized 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 OPA356AIDG4 handles with <0.3V output swing margin and <0.05° differential phase error - meeting NTSC/PAL broadcast standards without external compensation networks.
Is OPA356AIDG4 pin-compatible with other members of the OPA356 family?
OPA356AIDG4 (SOIC-8) shares identical pinout with OPA356AID (same package) and OPA2356AIDG4 (dual version), but differs from SOT-23-5 variants (e.g., OPA356AIDBVT) which have only five pins and omit NC terminals. Engineers must verify PCB footprint compatibility: SOIC-8 versions use pins 1, 2, 3, 4, 5 (NC), 6, 7, 8; SOT-23-5 uses pins 1 (V+), 2 (–In), 3 (Out), 4 (V–), 5 (+In).
OPA356AIDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- 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
- 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
OPA356AIDG4 FAQ
1.How can I place an order for OPA356AIDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA356AIDG4 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 OPA356AIDG4 reliable?
The price and inventory of OPA356AIDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA356AIDG4 is usually 5 days.
3.What payment methods are accepted for OPA356AIDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA356AIDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA356AIDG4?
OPA356AIDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA356AIDG4 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 OPA356AIDG4?
For technical support, including OPA356AIDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA356AIDG4 requirements.
6.How does Aetrix verify that OPA356AIDG4 is sourced from the original manufacturer or authorized distributors?
All OPA356AIDG4 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 OPA356AIDG4 meets industry standards.
7.What is the process for return or replacement of OPA356AIDG4?
All OPA356AIDG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA356AIDG4, 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 OPA356AIDG4 part is unused and in its original packaging.
Return procedure for OPA356AIDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA356AIDG4 Tags
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LM358DT
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LM358DR
Texas Instruments
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LM2904DR
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MCP6006UT-E/OT
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LM2902PWR
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LM2902DR
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LM358P
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