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Texas Instruments OPA361AIDCKRG4
- Part No.:
- OPA361AIDCKRG4
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
OPA361AIDCKRG4.pdf
- Description:
- IC AMP GENERAL PURPOSE SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,815
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Product details
Overview
OPA361AIDCKRG4 from Texas Instruments is a single-supply, rail-to-rail output video amplifier optimized for 2.5V–3.3V portable video systems. It integrates fixed gain (5.2V/V), a 2-pole 9MHz reconstruction filter, DC-coupled input/output, internal level shift to prevent sync-tip clipping, and TV-detection support - enabling automatic video start/stop in OMAP242x- and DaVinci-based camera phones.
For engineers reviewing the OPA361AIDCKRG4 datasheet, OPA361AIDCKRG4 pinout, OPA361AIDCKRG4 application, or OPA361AIDCKRG4 equivalent, key selection criteria include its 5.2V/V gain accuracy over temperature, −40°C to +125°C operation, SC70-6 footprint compatibility, shutdown current <1.5µA, and integrated 500Ω/4kΩ resistor network for OMAP242x interface.
Technical Context
The OPA361AIDCKRG4 implements a Sallen-Key 2-pole filter with 9MHz −3dB cutoff, designed to suppress DAC sampling aliases (e.g., 54MHz attenuation ≥23dB) while preserving color bar fidelity and multiburst flatness. Its internal level-shift circuit offsets the output by ~11mV (typ.) to avoid saturation at 0V sync tip, enabling true DC-coupled video paths without external capacitors.
TV-detection functionality operates via controlled shutdown during vertical sync pulses: the output is briefly disabled, and a pull-up resistor on the output reveals load presence (LOW = TV connected). This logic-level-compatible enable pin accepts 1.8V CMOS thresholds (HIGH >1.3V, LOW <0.35V) and features 1.5µs turn-on/50ns turn-off timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5V to 3.3V - enables direct integration with OMAP242x VAUX rails and eliminates need for voltage translation. |
| Fixed Gain | 5.2V/V (±0.12V/V max deviation) - internally set via matched 500Ω/4kΩ resistors, ensuring stable gain across −40°C to +125°C. |
| Filter Cutoff | 9MHz - suppresses 54MHz DAC sampling artifacts while preserving luminance/chrominance integrity in NTSC/PAL signals. |
| Output Swing | Rail-to-rail: within 5mV of GND and 250mV of V+ into 150Ω - supports full-swing video signal delivery without clipping. |
| Quiescent Current | 5.3mA (enabled), <1.5µA (shutdown) - extends battery life in intermittent video transmission use cases like camera phones. |
| Input Range | GND to 0.55V (at 3.3V supply) - allows direct DC coupling from 0.4–0.5VPP video DAC outputs without level-shifting circuitry. |
| Package | SC70-6 (2.0mm × 2.1mm) - ultra-compact footprint ideal for space-constrained mobile PCB layouts. |
Pinout & Package
OPA361AIDCKRG4 is housed in a 6-pin SC70 package (JEDEC MO-203 AB), measuring 2.0mm × 2.1mm × 1.1mm max height, with gull-wing leads and RoHS-compliant NiPdAu finish (MSL Level-2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: V+ | Positive supply rail | Accepts 2.5V–3.3V; requires local 100nF ceramic bypass to GND for stability. |
| 2: Enable | Shutdown control input | CMOS-compatible logic: HIGH (>1.3V) enables amplifier; LOW (<0.35V) disables output and reduces IQ to <1.5µA. |
| 3: Out | Amplified video output | DC-coupled, rail-to-rail; drives 75Ω/150Ω back-terminated loads directly; used for TV-detect sensing when disabled. |
| 4: +In | Inverting input | DC-coupled video input node; common-mode range includes GND, enabling direct connection to 0.5VPP DAC outputs. |
| 5: GND | Analog ground reference | Return path for supply, input, and internal level-shift circuitry; must be low-impedance and separated from digital ground. |
| 6: RSET | Internal feedback resistor terminal | Connects to internal 4kΩ resistor; forms gain-setting network with 500Ω input resistor - no external components required. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 2-pole reconstruction filter | 9MHz cutoff preserves video bandwidth while attenuating 54MHz DAC aliases by ≥23dB - eliminates need for external RC filters. |
| DC-coupled input and output | Eliminates AC-coupling capacitors on both sides, reducing BOM count, board area, and potential low-frequency distortion in sync-tip handling. |
| Internal level-shift circuit | Offsets output ~11mV (typ.) to prevent saturation at 0V sync tip - ensures undistorted composite video waveform integrity. |
| TV-detection support | Enables automated video start/stop via GPIO monitoring of output voltage during brief shutdown pulses - simplifies user interface design. |
| Matched internal resistor network | 500Ω input shunt + 4kΩ RSET provide precise 5.2V/V gain with <0.5% ratio tracking over temperature - improves system gain stability. |
Applications
| Camera Phone Video Output | OMAP242x-Based Mobile Multimedia |
|---|---|
Use Scenario: Transmitting composite video from a smartphone's baseband processor to an external TV or monitor via 3.5mm AV jack. IC Role / Device Role / Timing Role: Final-stage video buffer and level shifter, converting 0.5VPP DAC output to 1.0VPP standard video signal with sync-tip preservation. Use Value: Enables zero-capacitor DC-coupled path, eliminating capacitor-induced droop and phase shift that degrade color burst timing. |
Use Scenario: Integrating video output into TI OMAP2420-based handheld devices with dynamic power management requirements. IC Role / Device Role / Timing Role: System-level video interface IC providing gain, filtering, TV detection, and shutdown control synchronized to vertical blanking intervals. Use Value: Reduces quiescent current to <1.5µA during idle periods, extending battery runtime without compromising video startup latency. |
| Portable Media Player Video DAC Interface | Low-Power Embedded Video Systems |
Use Scenario: Driving analog video outputs from SoC-integrated DACs in battery-powered media players with HDMI/AV-out options. IC Role / Device Role / Timing Role: High-fidelity video reconstruction amplifier with integrated 9MHz filter and rail-to-rail swing capability. Use Value: Maintains differential gain error ≤1.2% and differential phase error ≤1.6° - meets NTSC/PAL broadcast-quality video specs. |
Use Scenario: Adding video output capability to industrial handheld terminals or medical imaging displays requiring extended temperature operation. IC Role / Device Role / Timing Role: Temperature-stable video driver rated for −40°C to +125°C ambient, supporting reliable operation in harsh environments. Use Value: Guaranteed performance across full temperature range with <9mA max quiescent current - avoids thermal derating in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar video amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA360AIDCKR | Same SC70-6 package, but G = 2V/V, no TV-detection, and no internal level shift - requires external sync-tip restoration. | Limited to non-TV-detect systems where lower gain suffices and external level-shifting is acceptable. | Select OPA360AIDCKR only if gain of 2V/V matches DAC output amplitude and TV-detection automation is unnecessary. |
| OPA358AIDCKR | 70MHz bandwidth, 6mA IQ, 5µA shutdown, but lacks integrated filter, level shift, and TV-detection - requires full external component set. | Suitable for higher-bandwidth applications beyond 9MHz (e.g., VGA or SVGA), but increases layout complexity and BOM cost. | Choose OPA358AIDCKR when video bandwidth exceeds 9MHz and design flexibility justifies added external passives and control logic. |
Compared with OPA361AIDCKRG4, OPA360AIDCKR offers lower gain and no TV-detection, making it less suitable for OMAP242x integration; OPA358AIDCKR provides wider bandwidth but demands external filtering and level-shifting, increasing design effort and board area.
Availability
OPA361AIDCKRG4 is available at Aetrix Electronics and suitable for camera phone video interfaces, OMAP242x multimedia subsystems, and portable media player designs requiring stable component supply, guaranteed RoHS compliance, and long-term production continuity.
Supply support for OPA361AIDCKRG4 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, embedded processing, and connectivity technologies, with decades of expertise in high-performance signal chain solutions.
The OPA361AIDCKRG4 belongs to TI's precision video amplifier product line, engineered specifically for low-voltage, space-constrained portable video systems requiring integrated gain, filtering, and intelligent power management.
FAQ
What is the exact gain value of the OPA361AIDCKRG4 and how stable is it over temperature?
The OPA361AIDCKRG4 has a precisely trimmed internal gain of 5.2V/V, with typical variation of ±0.11V/V (5.06–5.28V/V) across −40°C to +125°C. This stability is achieved through matched on-die 500Ω and 4kΩ resistors whose ratio tracks within 0.5% over temperature - critical for consistent video amplitude in camera phone applications.
Does the OPA361AIDCKRG4 require external capacitors for DC-coupled video operation?
No, the OPA361AIDCKRG4 does not require external coupling capacitors. Its DC-coupled input accepts GND-referenced video signals (e.g., 0.5VPP from OMAP242x DAC), and its internal level-shift circuit prevents sync-tip clipping - enabling direct connection to 75Ω/150Ω video loads without AC-blocking components.
How does the TV-detection feature work in the OPA361AIDCKRG4?
The OPA361AIDCKRG4 implements TV-detection by briefly disabling its output during the first vertical sync pulse. A pull-up resistor on the Out pin pulls the line HIGH if no load is present, or LOW if a 75Ω TV load is connected. The host processor reads this state via GPIO to auto-enable video transmission - a function fully supported in OMAP242x and DaVinci platforms.
What is the maximum operating temperature range specified for the OPA361AIDCKRG4?
The OPA361AIDCKRG4 is fully specified from −40°C to +125°C ambient temperature. Electrical parameters including gain, output swing, and quiescent current are guaranteed across this range, and thermal resistance (θJA) is 250°C/W in the SC70-6 package - enabling reliable deployment in thermally demanding portable and industrial environments.
Is the OPA361AIDCKRG4 pin-compatible with other members of the OPA36x family?
Yes, the OPA361AIDCKRG4 shares the same SC70-6 (DCK) package and pinout with OPA360AIDCKR and OPA358AIDCKR. However, functional differences exist: OPA360 uses G = 2V/V and lacks TV-detection; OPA358 offers higher bandwidth but no integrated filter or level shift - so pin compatibility does not imply drop-in replacement without circuit review.
OPA361AIDCKRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- General Purpose
- Output Type:
- Rail-to-Rail
- Number of Circuits:
- 1
- -3db Bandwidth:
- -
- Slew Rate:
- -
- Current - Supply:
- 5.3 mA
- Current - Output / Channel:
- 80 mA
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 3.3V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SC-70-6
OPA361AIDCKRG4 FAQ
1.How can I place an order for OPA361AIDCKRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA361AIDCKRG4 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 OPA361AIDCKRG4 reliable?
The price and inventory of OPA361AIDCKRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA361AIDCKRG4 is usually 5 days.
3.What payment methods are accepted for OPA361AIDCKRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA361AIDCKRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA361AIDCKRG4?
OPA361AIDCKRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA361AIDCKRG4 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 OPA361AIDCKRG4?
For technical support, including OPA361AIDCKRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA361AIDCKRG4 requirements.
6.How does Aetrix verify that OPA361AIDCKRG4 is sourced from the original manufacturer or authorized distributors?
All OPA361AIDCKRG4 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 OPA361AIDCKRG4 meets industry standards.
7.What is the process for return or replacement of OPA361AIDCKRG4?
All OPA361AIDCKRG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA361AIDCKRG4, 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 OPA361AIDCKRG4 part is unused and in its original packaging.
Return procedure for OPA361AIDCKRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA361AIDCKRG4 Tags
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