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Texas Instruments OPA693IDG4
- Part No.:
- OPA693IDG4
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA693IDG4.pdf
- Description:
- IC AMP BUFFER 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,029
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Product details
Overview
OPA693IDG4 from Texas Instruments is a fixed-gain, current-feedback video buffer amplifier optimized for RGB line driving and single-supply ADC input buffering. It delivers 700MHz small-signal bandwidth at G = +2, 2500V/µs slew rate, ±120mA output drive, and operates on ±5V or +5V supplies with 13mA quiescent current. Its disable pin reduces supply current to <170µA while placing the output in high-impedance state.
For engineers reviewing the OPA693IDG4 datasheet, OPA693IDG4 pinout, OPA693IDG4 application, or OPA693IDG4 equivalent, key selection criteria include gain configuration flexibility (+2/±1), low-headroom single-supply operation, video-grade distortion performance (–69dBc 2nd-harmonic @10MHz), and SO-8 package compatibility with legacy video layouts.
Technical Context
The OPA693IDG4 uses a low-gain-stable current-feedback architecture with internally trimmed 300Ω RF/RG resistors, enabling precise +2, +1, or –1 gain without external components. Its output stage minimizes crossover distortion and supports rail-swing within 1V on ±5V supplies.
It features a dedicated DIS pin with TTL-compatible thresholds (enable >3.3V, disable <1.8V), 25ns enable time, and 3µs disable time. The device maintains 0.2dB gain flatness to 400MHz at G = +2 into 150Ω and achieves <0.03% differential gain / 0.01° differential phase for NTSC video signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth (G = +2) | 700MHz min at ±5V - enables full HD video signal integrity up to 1080p60 with minimal attenuation |
| Slew Rate | 2500V/µs min - supports fast transient response for composite video and high-speed data acquisition |
| Output Drive Current | ±120mA min - drives dual 75Ω video loads or 100Ω ADC inputs without external buffers |
| Supply Current (Active) | 13mA max at ±5V - enables low-power multi-channel video systems with thermal margin |
| Disable Current | 170µA max - reduces system standby power by >98% while preserving board layout |
| Differential Gain/Phase | 0.03%/0.01° typ (NTSC, 150Ω) - meets broadcast-grade video fidelity requirements |
| Input Voltage Noise | 1.8nV/√Hz typ - preserves SNR in high-resolution analog front-ends |
Pinout & Package
OPA693IDG4 is packaged in an SO-8 (D) surface-mount package with exposed pad for thermal enhancement, rated for –40°C to +85°C operation. Pin 1 is marked with a dot; pin numbering follows standard SOIC convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DIS) | Disable control input | TTL-compatible digital input; open or HIGH enables operation; LOW disables output and cuts supply current to <170µA |
| 2 (+VS) | Positive supply | Accepts +5V to +12V single supply or +5V in dual-supply mode; decoupling required |
| 3 (Output) | Amplifier output | High-current, low-distortion output capable of ±120mA into 100Ω; high-Z when disabled |
| 4 (NC) | No connection | Internally unconnected; must be left floating or grounded per layout best practices |
| 5 (RF) | Internal feedback resistor terminal | Connected to internal 300Ω RF; used with RG to set fixed gain of +2 or ±1 without external parts |
| 6 (RG) | Internal gain-setting resistor terminal | Connected to internal 300Ω RG; open for G = +1, grounded for G = –1, or configured with RF for G = +2 |
| 7 (–IN) | Inverting input | Current-feedback input node; sets gain polarity and bandwidth; requires proper termination for stability |
| 8 (–VS) | Negative supply | Accepts –5V to –6V in dual-supply mode; tied to ground for single +5V operation |
Key Features
| Feature | Design Value |
|---|---|
| Fixed-gain configuration | Internally trimmed 300Ω RF/RG network enables G = +2, +1, or –1 without external resistors - eliminates gain-setting errors and layout sensitivity |
| Single-supply video operation | Delivers 2.5VPP swing with >500MHz bandwidth on +5V supply - supports compact RGB driver designs without negative rail |
| Low-distortion output stage | 0.03% differential gain / 0.01° differential phase (NTSC) - ensures color fidelity in broadcast and medical imaging systems |
| Fast enable/disable control | 25ns enable time and 3µs disable time - enables dynamic power gating in multi-channel video switchers |
| Thermally enhanced SO-8 | θJA = 125°C/W - sustains full output drive at ambient temperatures up to +85°C without derating |
Applications
| RGB Line Driver | ADC Input Driver |
|---|---|
Use Scenario: Driving three parallel 75Ω coaxial cables from GPU or video processor outputs in monitors and projectors. IC Role / Device Role / Timing Role: Fixed-gain +2 voltage buffer with DC coupling, providing impedance matching and level shifting between source and display interface. Use Value: Maintains <0.03% differential gain across 0–100MHz, preserving color accuracy without external tuning components. |
Use Scenario: Conditioning analog signals before undersampling by high-speed ADCs in spectrum analyzers and software-defined radios. IC Role / Device Role / Timing Role: Single-supply input buffer delivering 2VPP swing with 500MHz bandwidth into 100Ω ADC input, minimizing aperture jitter. Use Value: 2500V/µs slew rate and –69dBc 2nd-harmonic distortion ensure clean sampling of multi-tone RF signals up to 200MHz. |
| Portable Instrument Front-End | Component Video Distribution Amplifier |
Use Scenario: Battery-powered oscilloscope or logic analyzer input stage requiring low quiescent power and wide bandwidth. IC Role / Device Role / Timing Role: G = +1 unity-gain buffer with 13mA supply current, enabling >600MHz bandwidth while extending battery life. Use Value: 170µA disable current allows channel-level power gating during idle periods without PCB redesign. |
Use Scenario: Splitting one HDMI or component video source to multiple displays in AV distribution systems. IC Role / Device Role / Timing Role: Dual-output DA implementation using two OPA693IDG4s per channel, each configured as G = +2 video buffer. Use Value: 700MHz bandwidth and 70dB off-isolation at 5MHz prevent crosstalk between outputs in multi-display setups. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar video buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA695ID | Higher bandwidth (900MHz), no internal RF/RG - requires external gain-setting resistors; 20mA supply current | Used where variable gain or higher full-power bandwidth is needed; not drop-in for fixed-gain layouts | Select OPA695ID only when design requires >700MHz bandwidth and can accommodate external resistor layout |
| OPA690U | Voltage-feedback architecture; unity-gain stable; 1900V/µs slew rate; 12mA supply current; lower noise (1.6nV/√Hz) | Better DC precision and lower noise but limited to ≤200MHz bandwidth at G = +2 - unsuitable for HD video | Choose OPA690U for precision instrumentation amplifiers where bandwidth <200MHz suffices and voltage feedback stability is critical |
Compared with OPA695ID and OPA690U, the OPA693IDG4 uniquely balances fixed-gain simplicity, 700MHz bandwidth, and single-supply usability - making it optimal for cost-sensitive, space-constrained video line drivers where external resistor count and layout area must be minimized.
Availability
OPA693IDG4 is available at Aetrix Electronics and suitable for RGB line drivers, ADC input conditioning, portable test equipment, and component video distribution amplifiers requiring stable component supply across industrial temperature ranges.
Supply support for OPA693IDG4 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 high-speed op amps and precision signal chain solutions.
The OPA693IDG4 belongs to TI's ultra-wideband current-feedback video buffer product line, designed specifically for broadcast-quality video signal distribution, high-speed data acquisition front-ends, and single-supply ADC interface applications.
FAQ
What gain configurations does the OPA693IDG4 support?
The OPA693IDG4 supports three fixed gain configurations via internal 300Ω RF and RG resistors: +2 (standard configuration with –IN grounded), +1 (RG left open), and –1 (RG grounded). No external resistors are required for any of these gains, simplifying layout and eliminating gain-setting tolerance errors. Each configuration is validated across –40°C to +85°C with guaranteed bandwidth and distortion performance.
Can the OPA693IDG4 operate from a single +5V supply?
Yes, the OPA693IDG4 is fully specified for single +5V operation. It delivers 2.5VPP output swing with >500MHz bandwidth into 100Ω while sourcing/sinking ±90mA. Input common-mode range extends from 1.6V to 3.4V, and output swings from 0.9V to 4.1V - enabling direct interfacing with 2.5V-biased video sources and ADC inputs without level-shifting circuitry.
How does the DIS pin function on the OPA693IDG4?
The DIS pin on the OPA693IDG4 provides TTL-compatible power-down control: pulling it LOW (<1.8V) reduces supply current to <170µA and places the output in high-impedance state; leaving it open or HIGH (>3.3V) enables normal operation. Enable time is 25ns and disable time is 3µs, supporting dynamic channel gating in multi-buffer video systems without layout changes.
What is the thermal performance of the OPA693IDG4 in SO-8 package?
The OPA693IDG4 in SO-8 (D) package has a junction-to-ambient thermal resistance (θJA) of 125°C/W. At maximum 13mA quiescent current and full ±120mA output drive into 100Ω, power dissipation remains below 1W under typical conditions. This allows continuous operation at +85°C ambient without derating when mounted on 2oz copper with standard thermal vias.
Is the OPA693IDG4 suitable for NTSC/PAL video signal conditioning?
Yes, the OPA693IDG4 is explicitly characterized for broadcast video: differential gain is 0.03% and differential phase is 0.01° (NTSC, RL = 150Ω), meeting SMPTE 253M and ITU-R BT.601 standards. Its 700MHz bandwidth and low harmonic distortion (–69dBc 2nd-harmonic @10MHz) preserve luminance/chrominance separation and color fidelity across full baseband video spectrum.
OPA693IDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Buffer
- Output Type:
- -
- Number of Circuits:
- 1
- -3db Bandwidth:
- 1.4 GHz
- Slew Rate:
- 2500V/µs
- Current - Supply:
- 13 mA
- Current - Output / Channel:
- 120 mA
- Voltage - Supply, Single/Dual (±):
- 5V ~ 12V, ±2.5V ~ 6V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
OPA693IDG4 FAQ
1.How can I place an order for OPA693IDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA693IDG4 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 OPA693IDG4 reliable?
The price and inventory of OPA693IDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA693IDG4 is usually 5 days.
3.What payment methods are accepted for OPA693IDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA693IDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA693IDG4?
OPA693IDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA693IDG4 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 OPA693IDG4?
For technical support, including OPA693IDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA693IDG4 requirements.
6.How does Aetrix verify that OPA693IDG4 is sourced from the original manufacturer or authorized distributors?
All OPA693IDG4 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 OPA693IDG4 meets industry standards.
7.What is the process for return or replacement of OPA693IDG4?
All OPA693IDG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA693IDG4, 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 OPA693IDG4 part is unused and in its original packaging.
Return procedure for OPA693IDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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