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Texas Instruments OPA2674IDR
- Part No.:
- OPA2674IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2674IDR.pdf
- Description:
- IC OPAMP CFA 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,350
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Product details
Overview
OPA2674IDR from Texas Instruments is a dual wideband current-feedback operational amplifier optimized for high-output-current line driver applications. It delivers 500mA output current, 220MHz bandwidth at G = +4, 2000V/µs slew rate, and ±10VPP output swing on ±6V supplies - enabling ADSL/VDSL upstream drivers, matched I/Q video amplifiers, and broadband cable modem outputs.
For engineers reviewing the OPA2674IDR datasheet, OPA2674IDR pinout, OPA2674IDR application, or OPA2674IDR equivalent, key selection criteria include its SO-8 package, dual-channel current-feedback architecture, ±800mA short-circuit current limit, power-supply-independent biasing for single +5V operation, and differential distortion performance below −85dBc at full-rate ADSL peak power.
Technical Context
The OPA2674IDR uses a current-feedback topology with transimpedance gain of 135kΩ (±6V), enabling stable unity-gain operation up to 250MHz and maintaining >160MHz large-signal bandwidth across −40°C to +85°C. Its input stage supports ±4.5V common-mode range and exhibits 55dB CMRR, while the output stage features rail-to-rail swing capability (±4.7V into 100Ω) and programmable quiescent current via external logic only in SO-14 variants - not applicable to the SO-8 OPA2674IDR.
Unlike voltage-feedback op amps, the OPA2674IDR's bandwidth remains largely independent of closed-loop gain, supporting fixed RF resistor networks (e.g., 402Ω at G = +4) and delivering <0.1%/0.1° dG/dP nonlinearity when driving 10 parallel 15Ω video loads. Its low 2nV/√Hz input voltage noise and 16pA/√Hz noninverting input current noise support high-fidelity signal integrity in xDSL and composite video paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (G = +4) | 220MHz min at ±6V - enables full-rate ADSL upstream transmission with >380mA drive into twisted-pair lines. |
| Slew Rate | 2000V/µs min - supports fast transient response for multi-tone upstream signals without slewing-induced distortion. |
| Output Current | ±500mA min at +25°C - meets ADSL CPE minimum requirement and drives 10× 15Ω video loads simultaneously. |
| Supply Voltage | ±6V specified, supports +5V single supply - allows flexible integration into legacy telecom and video systems. |
| Harmonic Distortion | −72dBc 2nd-harmonic, −81dBc 3rd-harmonic at 5MHz/2VPP/100Ω - ensures compliance with ITU-T G.992.1 upstream spectral mask. |
| Input Voltage Noise | 2.0nV/√Hz typ - preserves SNR in high-gain, wideband front-end stages of line drivers. |
| Quiescent Current | 18mA max (both channels, ±6V) - balances performance and thermal management in compact DSLAM modules. |
Pinout & Package
OPA2674IDR is housed in an SO-8 surface-mount package (JEDEC MS-012AC, 150mil width), with exposed pad for thermal enhancement. Pinout follows standard dual op amp configuration with independent inputs and outputs per channel, no power control pins (unlike SO-14 variant).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input A | Current-feedback inverting input node; requires matched RF feedback resistor (e.g., 402Ω) for stable G = +4 operation. |
| 2 | Noninverting Input A | High-impedance input (250kΩ || 2pF); referenced to system ground or common-mode bias in single-supply configurations. |
| 3 | Output A | High-current output capable of ±500mA; designed for direct connection to 100Ω twisted-pair or 75Ω coaxial video lines. |
| 4 | Negative Supply (−VS) | Ground reference for dual-supply operation; tied to 0V in single +5V mode with appropriate level-shifting. |
| 5 | Positive Supply (+VS) | Accepts ±6V or +5V; internal biasing ensures rail-to-rail output swing independent of supply voltage. |
| 6 | Noninverting Input B | Second channel input; identical electrical characteristics to Pin 2 - enables matched I/Q channel implementation. |
| 7 | Inverting Input B | Second channel inverting input; used with matched RF network for differential gain consistency. |
| 8 | Output B | Independent high-current output; supports dual-line driver or stereo video applications without crosstalk degradation (−92dB at 5MHz). |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables constant bandwidth vs. gain - simplifies layout with fixed RF values and eliminates gain-dependent compensation. |
| High output current (±500mA) | Drives demanding ADSL line impedances (e.g., 82.5Ω + 2kΩ hybrid) while maintaining <−85dBc distortion at peak upstream power. |
| Rail-to-rail output swing (±4.7V into 100Ω) | Maximizes dynamic range on ±6V supplies - delivers 10VPP differential output for VDSL2 profile 30a compliance. |
| Low input voltage noise (2.0nV/√Hz) | Maintains signal fidelity in high-gain, wideband stages - critical for multi-tone upstream power ratio (MPR) margin in DSL systems. |
| Channel-to-channel crosstalk (−92dB) | Preserves I/Q phase orthogonality in quadrature modulators - essential for QAM-64/256 constellations in cable modems. |
Applications
| ADSL/VDSL Upstream Line Driver | Matched I/Q Channel Amplifier |
|---|---|
Use Scenario: Driving twisted-pair telephone lines in customer premises equipment (CPE) for ADSL2+ and VDSL2 upstream transmission up to 30MHz. IC Role / Device Role / Timing Role: Final-stage current-feedback line driver providing differential output, high slew rate, and harmonic suppression. Use Value: Delivers >380mA output current with <−85dBc 3rd-harmonic distortion at 5MHz, meeting ITU-T G.992.5 spectral emission limits. | Use Scenario: Amplifying in-phase (I) and quadrature (Q) baseband signals prior to upconversion in broadband cable modems. IC Role / Device Role / Timing Role: Dual-channel matched gain block ensuring amplitude/phase tracking between I and Q paths. Use Value: −92dB channel crosstalk and <0.01° differential phase error enable QAM-256 constellation stability under temperature variation. |
| Broadband Video Line Driver | Power Line Modem Signal Amplifier |
Use Scenario: Driving multiple 75Ω video loads (e.g., security camera distribution) with minimal differential gain/phase error. IC Role / Device Role / Timing Role: High-current buffer amplifying NTSC/PAL composite video with DC restoration. Use Value: 0.03% differential gain and 0.01° differential phase error at 150Ω load ensure broadcast-grade color fidelity across 10 parallel outputs. | Use Scenario: Transmitting OFDM signals over AC power lines in smart grid and home automation PLC systems. IC Role / Device Role / Timing Role: Robust line driver handling high-impedance, noisy power-line coupling networks. Use Value: ±800mA short-circuit current limit and 220MHz bandwidth support CENELEC A/B/C/D band modulation up to 30MHz with low THD. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-output-current line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2677IDR | Single-channel, same SO-8 package, 250MHz bandwidth, 500mA output, but lacks dual-channel integration. | Requires two devices for dual-path designs; higher board area and inter-channel matching tolerance. | Select when space permits discrete channel optimization or when single-channel redundancy is preferred. |
| THS6042CD | SO-14 dual op amp, ±15V operation, 220MHz bandwidth, but 350mA output and higher 24mA quiescent current. | Targeted at professional video and test equipment; less suitable for low-voltage ADSL CPE due to supply constraints. | Choose for ±15V systems requiring higher output voltage swing (>±12V) and lower distortion at 10MHz+. |
Compared with OPA2674IDR, OPA2677IDR offers identical per-channel specs but doubles component count for dual-path use, while THS6042CD trades lower current drive and higher power for wider supply range - making OPA2674IDR optimal for space-constrained, +5V/+12V ADSL/VDSL line cards.
Availability
OPA2674IDR is available at Aetrix Electronics and suitable for ADSL/VDSL line driver design, broadband video distribution, and power line communication systems requiring stable component supply, consistent parametric performance across temperature, and long-term industrial lifecycle support.
Supply support for OPA2674IDR 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 communications infrastructure ICs.
The OPA2674IDR belongs to TI's OPA high-output-current op amp family, engineered specifically for broadband line driver applications in DSL, cable, and video systems where distortion, bandwidth, and drive strength are critical.
FAQ
What is the maximum operating supply voltage for OPA2674IDR?
The OPA2674IDR has a maximum operating supply voltage of ±6.3V for dual-supply operation and up to +12.6V for single-supply mode. This allows safe operation on standard ±6V rails or +5V/+12V systems commonly found in DSL CPE and video equipment. The device is characterized and guaranteed over ±6V, with performance validated down to ±4.5V common-mode input range and rail-to-rail output swing capability.
Does OPA2674IDR support single +5V supply operation?
Yes, OPA2674IDR supports single +5V supply operation with verified performance: 168MHz small-signal bandwidth, 900V/µs slew rate, and ±260mA output current at +25°C. Its supply-voltage-independent biasing and rail-to-rail output stage enable full functionality without level-shifting circuitry, making it ideal for cost-sensitive, low-voltage ADSL and video applications where space and power efficiency are critical.
What is the harmonic distortion performance of OPA2674IDR at 5MHz?
At 5MHz, 2VPP output, and 100Ω load, OPA2674IDR achieves −72dBc 2nd-harmonic and −81dBc 3rd-harmonic distortion under ±6V supplies. This meets stringent upstream spectral mask requirements for ADSL2+ (ITU-T G.992.5) and ensures clean multi-tone transmission in VDSL2 and PLC systems. Performance degrades slightly at higher temperatures but remains within −66dBc/−77dBc limits across −40°C to +85°C.
How does OPA2674IDR differ from the SO-14 version OPA2674I-14DR?
The OPA2674IDR (SO-8) lacks the A0/A1 power-control logic pins present in the SO-14 variant (OPA2674I-14DR). As a result, OPA2674IDR operates only at full power (18mA quiescent current), while the SO-14 version supports four power states: full, cutback, idle, and shutdown. Both share identical core amplifier specs - 500mA output, 220MHz bandwidth, and −85dBc distortion - but OPA2674IDR is optimized for simplicity and density in fixed-power line cards.
Can OPA2674IDR drive 75Ω video loads directly?
Yes, OPA2674IDR can drive 75Ω video loads directly with verified performance: 0.03% differential gain and 0.01° differential phase error at 150Ω, scaling favorably to 75Ω. Its 500mA output current supports up to 10 parallel 75Ω loads (15Ω effective) with <0.1%/0.1° dG/dP nonlinearity, satisfying SMPTE 253M and EIA/TIA-770B broadcast video standards without external buffering.
OPA2674IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 2000V/µs
- Gain Bandwidth Product:
- 250 MHz
- -3db Bandwidth:
- 260 MHz
- Current - Input Bias:
- 10 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 18mA (x2 Channels)
- Current - Output / Channel:
- 500 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
OPA2674IDR FAQ
1.How can I place an order for OPA2674IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2674IDR 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 OPA2674IDR reliable?
The price and inventory of OPA2674IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2674IDR is usually 5 days.
3.What payment methods are accepted for OPA2674IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2674IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2674IDR?
OPA2674IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2674IDR 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 OPA2674IDR?
For technical support, including OPA2674IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2674IDR requirements.
6.How does Aetrix verify that OPA2674IDR is sourced from the original manufacturer or authorized distributors?
All OPA2674IDR 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 OPA2674IDR meets industry standards.
7.What is the process for return or replacement of OPA2674IDR?
All OPA2674IDR units undergo pre-shipment inspection (PSI). If there is an issue with OPA2674IDR, 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 OPA2674IDR part is unused and in its original packaging.
Return procedure for OPA2674IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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