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Texas Instruments OPA361AQDCKRQ1
- Part No.:
- OPA361AQDCKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
OPA361AQDCKRQ1.pdf
- Description:
- IC AMP GENERAL PURPOSE SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,760
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Product details
Overview
OPA361AQDCKRQ1 from Texas Instruments is an AEC-Q100 qualified automotive-grade video amplifier optimized for 3V portable video output stages. It integrates fixed 5.2V/V gain, a 2-pole 9MHz reconstruction filter, rail-to-rail output swing within 5mV of GND and 250mV of V+, and internal level shifting to prevent sync-pulse clipping-enabling DC-coupled video signal paths in OMAP242x and DaVinci-based infotainment systems.
For engineers reviewing the OPA361AQDCKRQ1 datasheet, OPA361AQDCKRQ1 pinout, OPA361AQDCKRQ1 application, or OPA361AQDCKRQ1 equivalent, this page delivers verified technical context, validated pin functions, confirmed automotive-grade performance parameters, and real-world implementation constraints for TV-detection, shutdown control, and back-terminated 75Ω video loads.
Technical Context
The OPA361AQDCKRQ1 implements a Sallen-Key 2-pole filter with 9MHz −3dB cutoff to reconstruct DAC video signals while attenuating 54MHz sampling aliases by 23dB. Its input common-mode range extends to GND (DC-coupled input), and its integrated level shift circuit offsets the output by ~11mV to preserve sync-tip integrity without external components.
Shutdown control disconnects internal feedback paths during disable, enabling low-leakage TV-detection via pull-up resistor on the output pin. The enable logic is compatible with 1.8V CMOS, with valid HIGH >1.3V and LOW <0.35V referenced to GND.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5V to 3.3V single supply - supports battery-powered automotive infotainment with minimal LDO overhead |
| Fixed Gain | 5.2V/V ±0.12V/V - eliminates external gain-setting resistors and ensures stable ratio tracking over temperature |
| Filter Cutoff | 9MHz −3dB - preserves luminance/chrominance fidelity up to 4.8MHz multiburst while suppressing 54MHz DAC aliasing |
| Output Swing | Within 5mV of GND and 250mV of V+ into 150Ω - enables full-swing NTSC/PAL sync-tip and white-level reproduction |
| Quiescent Current | 5.3mA enabled / 1.5µA shutdown - reduces standby power by >3500× for intermittent TV-out use cases |
| Differential Error | 1.2% gain error / 1.6° phase error - meets broadcast-quality video linearity requirements for automotive rear-seat displays |
| Operating Temp | −40°C to +125°C - qualified per AEC-Q100 Grade 1 for under-hood and dashboard-mounted video systems |
Pinout & Package
OPA361AQDCKRQ1 is housed in a RoHS-compliant SC70-6 (DCK) package measuring 2.0mm × 2.1mm with 0.65mm pitch. Pin 1 is located in Quadrant Q3 per tape-and-reel orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply rail | Accepts 2.5V–3.3V; requires local 100nF ceramic bypass to GND for video bandwidth stability |
| Enable | Active-HIGH shutdown control | Logic-compatible with 1.8V CMOS; internal pull-up enables device if left floating |
| Out | Filtered, level-shifted video output | Drives 75Ω/150Ω back-terminated loads; used for TV-detect sensing when disabled |
| +In | Non-inverting input | DC-coupled; accepts 0V to 0.55V common-mode range on 3.3V supply |
| GND | Analog ground reference | Return path for input, output, and internal level-shift circuitry; must be low-impedance |
| RSET | Internal gain resistor connection | Internally tied to 4.07kΩ resistor; not user-accessible but critical for gain accuracy and tempco matching |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 2-pole filter | Eliminates external RC network while maintaining 9MHz flat response and 23dB alias suppression at 54MHz |
| DC-coupled input & output | Removes need for AC-coupling capacitors and associated DC restoration circuitry in space-constrained modules |
| Internal level shift | Offsets output by ~11mV to avoid sync-tip saturation with 0V DAC inputs, preventing visible video distortion |
| TV-detection support | Enables automatic video start/stop via GPIO monitoring of output voltage during brief shutdown pulses |
| AEC-Q100 qualification | Validated for automotive environments including thermal cycling, humidity bias, and ESD robustness per Grade 1 |
Applications
| Automotive Rear-Seat Entertainment | Portable Navigation System Video Output |
|---|---|
Use Scenario: Driving video from OMAP242x processor to rear-seat LCD or HDMI converter via analog CVBS output. IC Role / Device Role / Timing Role: Final-stage video buffer and reconstruction filter before 75Ω coaxial transmission line. Use Value: DC-coupled architecture avoids capacitor-induced baseline drift; 1.2% differential gain error ensures color fidelity across temperature. | Use Scenario: Transmitting composite video from DaVinci-based navigation unit to external display during vehicle operation. IC Role / Device Role / Timing Role: Amplifier and sync-tip level shifter enabling reliable NTSC signal generation without negative supply. Use Value: Rail-to-rail output swing within 5mV of GND preserves black-level accuracy; shutdown current <1.5µA extends battery runtime. |
| Infotainment Head Unit TV-Out | Automotive Diagnostic Tool Video Interface |
Use Scenario: Enabling optional TV-out functionality in head units using TI multimedia processors with 0.5VPP DAC outputs. IC Role / Device Role / Timing Role: Gain stage and TV-detection enabler interfacing directly with OMAP242x video encoder block. Use Value: Integrated RSET and 500Ω load resistor ensure precise 5.2V/V gain and temperature-stable ratio tracking (0.5% matching). | Use Scenario: Providing standardized CVBS output from handheld diagnostic tools connected to vehicle OBD-II ports. IC Role / Device Role / Timing Role: Low-power, AEC-Q100-compliant video driver supporting intermittent use and hot-plug detection. Use Value: TV-detect feature automates video enable/disable based on load presence, reducing firmware complexity and user interaction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar video amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA361QDBVRQ1 | SOT-23-6 package (2.9mm × 1.6mm); identical electrical specs and AEC-Q100 qualification | Larger footprint; less suitable for ultra-compact layouts where SC70-6's 2.0mm × 2.1mm saves board area | Select OPA361QDBVRQ1 only when SC70 assembly capability is unavailable or thermal dissipation requirements exceed SC70 limits. |
| THS7314RGTT | Triple-channel, 3.3V video amplifier with 6dB gain; no integrated level shift or TV-detect; higher 12mA IQ | Requires external sync-tip restoration and separate detection circuitry; suited for multi-output systems | Choose THS7314RGTT only when driving multiple video loads simultaneously and system-level TV-detect is implemented externally. |
Compared with OPA361QDBVRQ1, the OPA361AQDCKRQ1 offers superior board-area efficiency in space-constrained automotive modules; compared with THS7314RGTT, it provides integrated level shift and TV-detect functionality at lower quiescent power, simplifying single-channel video interface design.
Availability
OPA361AQDCKRQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, portable navigation devices, and diagnostic tool video interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA361AQDCKRQ1 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 leadership in automotive, industrial, and personal electronics markets.
The OPA361AQDCKRQ1 belongs to TI's automotive-qualified precision amplifier portfolio, designed specifically to simplify high-fidelity analog video signal conditioning in resource-constrained, safety-conscious automotive applications.
FAQ
What is the exact gain value of the OPA361AQDCKRQ1 and how is it set?
The OPA361AQDCKRQ1 has a fixed voltage gain of 5.2V/V, with typical variation of ±0.12V/V over temperature and supply voltage. This gain is set internally using matched thin-film resistors (RSET ≈ 4.07kΩ and RIN ≈ 510Ω), eliminating the need for external gain-setting components and ensuring excellent temperature tracking (0.5% RSET/RIN ratio stability).
Does the OPA361AQDCKRQ1 require external capacitors for DC-coupled video operation?
No, the OPA361AQDCKRQ1 does not require external coupling capacitors for DC-coupled video operation. Its input common-mode range includes GND and its internal level shift circuit offsets the output by ~11mV, allowing direct connection to video DACs with 0V sync tips and back-terminated 75Ω loads without sync-pulse clipping.
How does the TV-detection function work on the OPA361AQDCKRQ1?
The TV-detection function on the OPA361AQDCKRQ1 operates by briefly disabling the amplifier during the first vertical sync pulse. With a pull-up resistor on the Out pin, the voltage reads HIGH if no load is present and LOW when a 75Ω TV load is connected. The OPA361AQDCKRQ1's shutdown mode disconnects internal feedback paths, limiting leakage to ~300pA and enabling reliable detection.
What is the maximum video signal frequency supported by the OPA361AQDCKRQ1's internal filter?
The OPA361AQDCKRQ1's internal 2-pole Sallen-Key filter has a −3dB cutoff frequency of 9MHz. It maintains flat response (<0.1dB gain deviation) up to 4.5MHz and provides 23dB attenuation at 54MHz, making it suitable for standard-definition CVBS video signals with multiburst content up to 4.8MHz and effective alias suppression for 54MHz DAC sampling clocks.
Is the OPA361AQDCKRQ1 pin-compatible with other members of the OPA361-Q1 family?
Yes, the OPA361AQDCKRQ1 is pin-compatible with the OPA361QDBVRQ1 (SOT-23-6) variant. Both share identical pin assignments (V+, Enable, Out, +In, GND, RSET), electrical specifications, AEC-Q100 qualification, and functional behavior-differing only in package type, thermal resistance (250°C/W for SC70 vs 200°C/W for SOT-23), and board area requirements.
OPA361AQDCKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- General Purpose
- Output Type:
- Rail-to-Rail
- Number of Circuits:
- 1
- -3db Bandwidth:
- 9 MHz
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- SC-70-6
OPA361AQDCKRQ1 FAQ
1.How can I place an order for OPA361AQDCKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA361AQDCKRQ1 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 OPA361AQDCKRQ1 reliable?
The price and inventory of OPA361AQDCKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA361AQDCKRQ1 is usually 5 days.
3.What payment methods are accepted for OPA361AQDCKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA361AQDCKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA361AQDCKRQ1?
OPA361AQDCKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA361AQDCKRQ1 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 OPA361AQDCKRQ1?
For technical support, including OPA361AQDCKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA361AQDCKRQ1 requirements.
6.How does Aetrix verify that OPA361AQDCKRQ1 is sourced from the original manufacturer or authorized distributors?
All OPA361AQDCKRQ1 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 OPA361AQDCKRQ1 meets industry standards.
7.What is the process for return or replacement of OPA361AQDCKRQ1?
All OPA361AQDCKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with OPA361AQDCKRQ1, 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 OPA361AQDCKRQ1 part is unused and in its original packaging.
Return procedure for OPA361AQDCKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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