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Texas Instruments OPA3692IDG4
- Part No.:
- OPA3692IDG4
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA3692IDG4.pdf
- Description:
- IC AMP BUFFER 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,303
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Product details
Overview
OPA3692IDG4 from Texas Instruments is a triple, wideband, fixed-gain video buffer amplifier with disable control, designed for RGB line driving and ADC buffering. It delivers 225MHz bandwidth at G = +2, ±4.0V output swing, 190mA output current, and operates on ±5V dual or +5V to +12V single supply - enabling high-fidelity analog video signal conditioning in compact portable instrumentation and broadcast-grade systems.
For engineers reviewing the OPA3692IDG4 datasheet, OPA3692IDG4 pinout, OPA3692IDG4 application, or OPA3692IDG4 equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed application use cases, and two rigorously cross-checked alternative parts - all grounded in TI's SBOS228E production data sheet and official ordering documentation.
Technical Context
The OPA3692IDG4 integrates three identical current-feedback op amps with internally trimmed 402Ω RF/RG resistor networks, supporting fixed gains of +2 (–IN grounded), +1 (–IN open), or –1 (inverting configuration). Its improved high-frequency pinout minimizes parasitic coupling and enables clean signal flow-through PCB layout for RGB video routing.
Each channel features independent disable control (DIS A/B/C), reducing supply current to <150µA/ch while placing the output in high-impedance state. The output stage delivers >160mA into 100Ω loads with minimal crossover distortion and <1.9ns rise/fall time at G = +2, making it suitable for DC-coupled or AC-coupled video paths up to 220MHz large-signal bandwidth.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (G = +2) | 225MHz min - supports full NTSC/PAL video bandwidth with margin for filter roll-off and PCB trace loss. |
| Output Current | ±190mA min - drives three 75Ω coaxial video lines simultaneously without external buffers. |
| Supply Current (per ch) | 5.1mA typ at +25°C - enables low-power portable instruments; trim ensures stable max current across temperature. |
| Disable Current (per ch) | 150µA max - reduces total system quiescent draw to <500µA when all channels disabled. |
| Output Swing (100Ω load) | ±3.9V min on ±5V supply - delivers 7.8Vpp headroom for 1V–4V RGB signal range with >120mA drive. |
| Differential Gain/Phase | 0.07% / 0.02° typ (NTSC, 150Ω) - meets broadcast video fidelity requirements without post-compensation. |
| Slew Rate (G = +2) | 1350V/µs min - preserves edge integrity in fast-switching video sync pulses and digital waveform reconstruction. |
Pinout & Package
OPA3692IDG4 is packaged in SO-16 (D package), rated for –40°C to +85°C operation. Pin numbering follows standard SOIC top-view convention with pin 1 at bottom-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (–IN A) | Inverting input, Channel A | Grounded for G = +2; left open for G = +1; connected to feedback for G = –1. |
| 2 (+IN A) | Noninverting input, Channel A | Main signal input node; high-impedance (100kΩ || 2pF) for minimal loading. |
| 3 (DIS B) | Disable control, Channel B | Pull LOW to disable Channel B; open or HIGH for normal operation. |
| 4 (–IN B) | Inverting input, Channel B | Same function as Pin 1, for Channel B. |
| 5 (+IN B) | Noninverting input, Channel B | Same function as Pin 2, for Channel B. |
| 6 (DIS C) | Disable control, Channel C | Same function as Pin 3, for Channel C. |
| 7 (–IN C) | Inverting input, Channel C | Same function as Pin 1, for Channel C. |
| 8 (+IN C) | Noninverting input, Channel C | Same function as Pin 2, for Channel C. |
| 9 (DIS A) | Disable control, Channel A | Independent enable/disable for Channel A; critical for multiplexed ADC driver timing. |
| 10 (+VS) | Positive power supply | Accepts +5V to +12V single or ±2.5V to ±6V dual; decoupling required per TI layout guidelines. |
| 11 (OUT A) | Output, Channel A | High-current, low-impedance output; capable of 190mA sourcing/sinking into 75Ω loads. |
| 12 (–VS) | Negative power supply | Required for dual-supply operation; tied to ground for single-supply +5V mode. |
| 13 (OUT B) | Output, Channel B | Signal flow-through layout compatible; matched delay and drive strength to OUT A/C. |
| 14 (+VS) | Positive power supply (redundant) | Second +VS connection for improved PSRR and thermal distribution in SO-16 package. |
| 15 (OUT C) | Output, Channel C | Identical performance to OUT A/B; supports simultaneous RGB or triple-ADC buffering. |
| 16 (–VS) | Negative power supply (redundant) | Second –VS connection for symmetric decoupling and reduced ground bounce. |
Key Features
| Feature | Design Value |
|---|---|
| Internally fixed gain network | 402Ω RF/RG resistors trimmed to ±0.3% gain error at G = +2 - eliminates external resistor matching and board space. |
| Improved high-frequency pinout | Input-output signal flow-through arrangement (e.g., +IN A → OUT A → +IN B → OUT B) minimizes crosstalk and layout-induced peaking. |
| Low-disable glitch | ±20mV turn-off / ±50mV turn-on glitch (RL = 150Ω) - prevents visible artifacts during video channel switching. |
| Single-supply video optimization | 1.0V to 4.0V output swing on +5V supply with >120mA drive - matches standard RGB DAC output ranges without level-shifting. |
| Channel-to-channel crosstalk | –82dBc at 5MHz (input-referred, all hostile) - ensures isolated RGB channel integrity in high-density video routing. |
Applications
| RGB Video Line Driver | Triple ADC Input Buffer |
|---|---|
|
Use Scenario: Driving three 75Ω coaxial cables carrying R/G/B analog video signals from a graphics processor to display hardware. IC Role / Device Role / Timing Role: Fixed-gain +2 video buffer with DC-coupled output, providing impedance matching, level translation, and drive strength. Use Value: Eliminates need for external gain-setting resistors and discrete output transistors; maintains <0.07% differential gain error for broadcast compliance. |
Use Scenario: Conditioning analog outputs from three parallel video DACs before sampling by a triple-input ADC (e.g., ADS826). IC Role / Device Role / Timing Role: Synchronized triple buffer with independent disable control, enabling time-multiplexed channel acquisition. Use Value: 25ns enable time and make-before-break disable ensure glitch-free switching between video channels during retrace intervals. |
| Portable Instrumentation Front-End | Wideband Differential Receiver |
|
Use Scenario: Signal conditioning stage in handheld oscilloscopes or spectrum analyzers requiring low-power, high-bandwidth analog path. IC Role / Device Role / Timing Role: Low-quiescent-current (5.1mA/ch) buffer with ±4V swing, supporting single +5V rail operation and battery longevity. Use Value: Delivers >200MHz bandwidth on +5V supply with <1.9ns rise time - enables accurate capture of fast transient waveforms. |
Use Scenario: Converting balanced video or RF signals (e.g., from transformer-coupled sources) to single-ended outputs for digitization. IC Role / Device Role / Timing Role: Configured as G = –1 inverter per channel, providing precise amplitude inversion and common-mode rejection. Use Value: 0.02° differential phase error and –82dBc crosstalk preserve signal integrity in high-resolution differential measurement systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple video buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA3682IDBQ | Lower bandwidth (190MHz G = +2), higher supply current (6.5mA/ch), no disable function. | Lacks channel disable - unsuitable for power-gated or multiplexed systems. | Select OPA3682IDBQ only if disable control is unnecessary and cost is prioritized over bandwidth/power. |
| OPA3691IDBQ | Current-feedback architecture, same pinout, but dual-channel only; requires external gain resistors. | Not pin-compatible - needs PCB redesign; lacks third channel and internal gain network. | Choose OPA3691IDBQ only when dual-channel operation suffices and external resistor tuning is acceptable. |
Compared with OPA3682IDBQ and OPA3691IDBQ, the OPA3692IDG4 uniquely combines triple-channel integration, internal fixed gain, per-channel disable, and 225MHz bandwidth - making it the only option that satisfies simultaneous RGB drive, low-power portability, and multiplexed ADC buffering without layout or bill-of-materials compromise.
Availability
OPA3692IDG4 is available at Aetrix Electronics and suitable for RGB video line drivers, triple analog-to-digital converter (ADC) input buffers, and portable instrumentation front-ends requiring stable component supply, long-term lifecycle support, and guaranteed authentic TI sourcing.
Supply support for OPA3692IDG4 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-speed amplifiers and precision signal chain solutions.
The OPA3692IDG4 belongs to TI's OPA36xx video buffer family, engineered specifically for broadcast-quality analog video signal conditioning - emphasizing bandwidth, differential gain/phase accuracy, low distortion, and robust single-supply operation.
FAQ
What supply voltage ranges does the OPA3692IDG4 support?
The OPA3692IDG4 supports ±2.5V to ±6V dual supplies or +5V to +12V single supply operation. At ±5V, it delivers 225MHz bandwidth and ±3.9V output swing into 100Ω; on +5V single supply, it achieves >200MHz bandwidth with 1V–4V output range. Absolute maximum ratings cap at ±6.5V, so +12V operation must remain within specified derating limits.
How does the OPA3692IDG4 achieve its low 150µA disable current?
The OPA3692IDG4 uses a dedicated internal bias shutdown circuit activated when the DIS pin is pulled LOW. This disables the input stage, output stage, and internal gain network while maintaining high-impedance output. Measured at <150µA per channel (max) under VS = ±5V, the total disabled current is <450µA for all three channels - verified in TI's SBOS228E datasheet Section 6.5.
Can the OPA3692IDG4 be used in AC-coupled RGB video applications?
Yes - the OPA3692IDG4 is explicitly characterized for AC-coupled operation in Figure 2 of the SBOS228E datasheet. With an input bias divider (e.g., dual 806Ω resistors to +5V), it supports 3Vpp output swing and >150MHz bandwidth on single +5V supply. Its internal gain network and low input bias current (<45µA) minimize DC offset drift across temperature in such configurations.
What is the purpose of the redundant +VS and –VS pins on the OPA3692IDG4 SO-16 package?
The OPA3692IDG4 SO-16 package includes two +VS (Pins 10 and 14) and two –VS (Pins 12 and 16) connections to reduce power supply impedance and improve PSRR. TI's layout guidelines recommend separate 0.1µF ceramic decoupling capacitors from each +VS and –VS pair to ground, minimizing high-frequency noise coupling between channels and enhancing stability in multi-channel video routing.
Does the OPA3692IDG4 require external gain-setting resistors?
No - the OPA3692IDG4 integrates precision-trimmed 402Ω RF and RG resistors internally. For G = +2, ground the –IN pin; for G = +1, leave –IN open; for G = –1, connect –IN to the output. This eliminates external resistor placement, matching tolerance errors, and board area - confirmed in the "WIDEBAND BUFFER OPERATION" section of SBOS228E.
OPA3692IDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- Buffer
- Output Type:
- -
- Number of Circuits:
- 3
- -3db Bandwidth:
- 280 MHz
- Slew Rate:
- 2000V/µs
- Current - Supply:
- 15.3 mA
- Current - Output / Channel:
- 190 mA
- Voltage - Supply, Single/Dual (±):
- 5V ~ 12V, ±2.5V ~ 6V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-SOIC
OPA3692IDG4 FAQ
1.How can I place an order for OPA3692IDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA3692IDG4 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 OPA3692IDG4 reliable?
The price and inventory of OPA3692IDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA3692IDG4 is usually 5 days.
3.What payment methods are accepted for OPA3692IDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA3692IDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA3692IDG4?
OPA3692IDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA3692IDG4 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 OPA3692IDG4?
For technical support, including OPA3692IDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA3692IDG4 requirements.
6.How does Aetrix verify that OPA3692IDG4 is sourced from the original manufacturer or authorized distributors?
All OPA3692IDG4 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 OPA3692IDG4 meets industry standards.
7.What is the process for return or replacement of OPA3692IDG4?
All OPA3692IDG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA3692IDG4, 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 OPA3692IDG4 part is unused and in its original packaging.
Return procedure for OPA3692IDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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