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Texas Instruments OPA2683ID
- Part No.:
- OPA2683ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2683ID.pdf
- Description:
- IC OPAMP CFA 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:300
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Product details
Overview
OPA2683ID from Texas Instruments is a dual, very low-power, current-feedback operational amplifier in SO-8 package, delivering 150MHz bandwidth at G = +2, 110mA output drive, and 1.9mA total quiescent current. It operates from ±2.5V to ±6V or +5V to +12V single supply and targets low-power broadcast video drivers and differential ADC input stages.
For engineers reviewing the OPA2683ID datasheet, OPA2683ID pinout, OPA2683ID application, or OPA2683ID equivalent, this page provides verified specifications, SO-8 pin mapping, real-world use cases in video and DSL line driving, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The OPA2683ID implements CFBPLUS architecture with an internally closed-loop input buffer stage, yielding linearized inverting-input impedance (~5Ω) and exceptional gain-bandwidth stability - bandwidth remains >80MHz up to G = +10. This architecture decouples feedback resistor selection from bandwidth degradation, enabling flexible peaking and summing configurations without sacrificing flatness.
It supports both bipolar (±2.5V to ±6V) and single-supply (+5V to +12V) operation, with rail-to-rail input common-mode range (±3.6V min) and output swing of ±4.0V into 1kΩ. Shutdown functionality is not available in the SO-8 variant - only MSOP-10 (OPA2683IDGST) includes DIS pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (G = +2) | 150MHz typical - enables high-fidelity NTSC/PAL video amplification with minimal phase distortion |
| Output Current | 110mA min sourcing - drives ±4VPP into 100Ω loads, sufficient for doubly-terminated 50Ω video lines |
| Supply Current | 1.9mA total max at ±5V - ultra-low power enables multi-channel designs without thermal penalty |
| Harmonic Distortion | <–65dBc 2nd/3rd at 5MHz - meets broadcast-grade differential gain/phase specs (0.13%/0.06°) |
| Input Impedance (Inverting) | 5.0Ω typical - near-ideal current-feedback node enables stable gain-setting with minimal interaction |
| Operating Voltage | ±2.5V to ±6V or +5V to +12V - supports legacy bipolar systems and modern single-supply embedded interfaces |
| Temperature Range | –40°C to +85°C - qualified for industrial and professional video equipment environments |
Pinout & Package
OPA2683ID is housed in an 8-pin SOIC (SO-8) package with standard JEDEC MS-012AC outline, 1.27mm pitch, and 4.9mm × 6.0mm body size. Thermal resistance θJA is 125°C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +In A | Noninverting input of Channel A - high-impedance node (50kΩ || 2pF), DC-coupled capable |
| 2 | –In A | Inverting input of Channel A - ultra-low, linearized impedance (~5Ω) for current-feedback operation |
| 3 | Out A | Amplified output of Channel A - delivers ±4.0V swing into 1kΩ, 110mA sourcing capability |
| 4 | –VS | Negative supply rail - accepts –2.5V to –6V; also serves as reference for input common-mode range |
| 5 | +VS | Positive supply rail - accepts +2.5V to +6V (bipolar) or +5V to +12V (single-supply) |
| 6 | –In B | Inverting input of Channel B - identical low-impedance node to Pin 2, enabling independent dual-channel feedback |
| 7 | +In B | Noninverting input of Channel B - matched to Pin 1, supports DC-coupled differential input configurations |
| 8 | Out B | Amplified output of Channel B - fully independent channel with same AC/DC performance as Out A |
Key Features
| Feature | Design Value |
|---|---|
| CFBPLUS architecture | Internally buffered inverting input yields <5Ω impedance and bandwidth retention up to G=+10 |
| Low distortion at high frequency | –65dBc 2nd/3rd harmonic at 5MHz ensures broadcast video compliance (dG/dP ≤ 0.13%/0.06°) |
| Dual-channel independence | 70dB channel-to-channel isolation at 5MHz prevents crosstalk in multi-channel summing or ADC driver arrays |
| Rail-compatible input/output | Input CM range extends to ±3.6V; output swings to within 1.0V of rails - enables ±5V operation with full dynamic range |
| Flexible supply support | Operates identically across ±2.5V to ±6V or +5V to +12V - simplifies migration between legacy and new power domains |
Applications
| Professional Broadcast Video Drivers | Differential ADC Input Drivers |
|---|---|
Use Scenario: Driving composite NTSC/PAL signals over 150Ω coaxial cables in ENG cameras and studio routers. IC Role / Device Role / Timing Role: Dual-channel voltage buffer with DC-coupled gain of +2, preserving signal integrity across 0–5.5MHz baseband. Use Value: 0.13% differential gain and 0.06° phase error meet SMPTE 253M requirements without external trimming. |
Use Scenario: Conditioning single-ended sensor outputs into balanced inputs of 12–16-bit SAR or sigma-delta ADCs. IC Role / Device Role / Timing Role: Dual-channel, matched-gain current-feedback amplifier providing low-noise, low-distortion differential drive. Use Value: 4.4nV/√Hz input voltage noise and –65dBc harmonics preserve ENOB in high-resolution data acquisition. |
| Short-Loop ADSL CO Line Drivers | Multi-Channel Summing Amplifiers |
Use Scenario: Transmitting upstream/downstream DSL signals (up to 2.2MHz) from central office line cards into twisted-pair copper. IC Role / Device Role / Timing Role: Dual-channel, high-output-current driver operating from ±5V, configured as noninverting G=+2 with 953Ω feedback. Use Value: 110mA output current sustains >12dBm line power into 100Ω while maintaining spectral purity per ITU-T G.992.1. |
Use Scenario: Summing multiple analog sensor channels (e.g., temperature, pressure, vibration) prior to multiplexed ADC sampling. IC Role / Device Role / Timing Role: Dual-channel inverting summing amplifier with programmable gain via RG, leveraging low inverting-input impedance for stable summation. Use Value: Bandwidth independence from gain allows consistent 150MHz response across all summed channels without compensation redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2684ID | Higher 200MHz bandwidth at G=+2, 2.5mA supply current, no shutdown - same SO-8 footprint | Better suited for >10MHz video reconstruction or faster DSL variants (VDSL2); less optimal for battery-powered systems | Select when bandwidth >180MHz is required and 0.6mA higher quiescent current is acceptable |
| OPA2691ID | 450V/µs slew rate, 350MHz bandwidth at G=+2, 5.5mA supply current - SO-8 package | Targeted at high-slew applications like pulse amplification or wideband IF stages; overqualified for video line driving | Choose only if large-signal transient fidelity (e.g., radar pulse shaping) dominates power budget concerns |
Compared with OPA2684ID and OPA2691ID, the OPA2683ID uniquely balances 150MHz bandwidth, <2mA supply current, and broadcast-grade distortion - making it the optimal choice for power-constrained, multi-channel video and DSL line driver designs where thermal density and EMI are critical.
Availability
OPA2683ID is available at Aetrix Electronics and suitable for professional broadcast video drivers, differential ADC input stages, and short-loop ADSL CO line drivers requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for OPA2683ID 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 OPA2683ID belongs to TI's CFBPLUS current-feedback op amp product line, engineered specifically for low-power, wideband applications demanding high output drive, excellent distortion performance, and gain-stable bandwidth - especially in video, communications, and precision instrumentation.
FAQ
What is the maximum small-signal bandwidth of the OPA2683ID at G = +2?
The OPA2683ID achieves 150MHz typical small-signal bandwidth at G = +2 with RF = 953Ω and VO = 0.5VPP under ±5V supply conditions. Minimum guaranteed bandwidth is 124MHz across temperature and process variation. This performance enables accurate amplification of NTSC/PAL baseband video and ADSL upstream signals without phase roll-off.
Does the OPA2683ID support single-supply operation?
Yes, the OPA2683ID supports true single-supply operation from +5V to +12V. At +5V, it delivers 119MHz bandwidth (G = +2, RF = 1.2kΩ), ±4.0V output swing into 1kΩ, and maintains 0.24% differential gain - validated in TI's Figure 3 test circuit. Input common-mode range extends from 1.1V to 3.9V, allowing direct coupling to 2.5V-biased sources.
What is the inverting input impedance of the OPA2683ID, and why does it matter?
The OPA2683ID has a typical inverting input resistance of 5.0Ω - a defining trait of its CFBPLUS architecture. This ultra-low, linearized impedance isolates bandwidth and distortion from feedback resistor value, enabling stable gain configurations from +1 to +20 without recompensation. It directly enables high-fidelity multi-channel summing and peaking filter integration.
Is shutdown functionality available on the OPA2683ID?
No, shutdown functionality is exclusive to the MSOP-10 variant (OPA2683IDGST). The OPA2683ID in SO-8 package has no DIS pins. Power-down capability requires selecting the DGS suffix part; the D-suffix SO-8 device draws 1.9mA continuously and must be powered down externally via supply sequencing.
How does the OPA2683ID compare to the OPA2677 in video driver applications?
The OPA2683ID offers lower power (1.9mA vs. 4.5mA), better distortion (–65dBc vs. –60dBc at 5MHz), and tighter differential gain/phase (0.13%/0.06° vs. 0.25%/0.15°) than the OPA2677 - making it superior for broadcast video. However, the OPA2677 provides higher output current (200mA) and is preferred for driving unterminated 75Ω coaxial runs over longer distances.
OPA2683ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 2
- Output Type:
- Differential
- Slew Rate:
- 540V/µs
- Gain Bandwidth Product:
- 200 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3 µA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 1.88mA (x2 Channels)
- Current - Output / Channel:
- 150 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA2683ID FAQ
1.How can I place an order for OPA2683ID through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2683ID 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 OPA2683ID reliable?
The price and inventory of OPA2683ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2683ID is usually 5 days.
3.What payment methods are accepted for OPA2683ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2683ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2683ID?
OPA2683ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2683ID 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 OPA2683ID?
For technical support, including OPA2683ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2683ID requirements.
6.How does Aetrix verify that OPA2683ID is sourced from the original manufacturer or authorized distributors?
All OPA2683ID 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 OPA2683ID meets industry standards.
7.What is the process for return or replacement of OPA2683ID?
All OPA2683ID units undergo pre-shipment inspection (PSI). If there is an issue with OPA2683ID, 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 OPA2683ID part is unused and in its original packaging.
Return procedure for OPA2683ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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