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Texas Instruments OPA2674IDG4
- Part No.:
- OPA2674IDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2674IDG4.pdf
- Description:
- IC OPAMP CFA 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,137
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Product details
Overview
OPA2674IDG4 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 full-rate ADSL upstream drivers and broadband video line drivers with < −85dBc distortion.
For engineers reviewing the OPA2674IDG4 datasheet, OPA2674IDG4 pinout, OPA2674IDG4 application, or OPA2674IDG4 equivalent, key selection criteria include its SO-8 package, dual-channel current-limiting architecture, flexible power control (SO-14 only), ±800mA short-circuit protection, and verified performance in xDSL, cable modem, and composite video load-driving circuits.
Technical Context
The OPA2674IDG4 employs a current-feedback topology with transimpedance gain of 135kΩ (min) and low input bias current drift (±10nA/°C). Its differential input stage supports rail-to-rail common-mode input range (±4.5V) and achieves 55dB CMRR, enabling stable operation in high-gain, high-frequency configurations up to 250MHz (G = +1).
Designed for single-supply +5V or dual ±6V operation, it maintains 168MHz bandwidth and 900V/µs slew rate at +5V, while delivering 260mA output current into 100Ω - making it suitable for 15Ω video loads (up to 10 parallel) with < 0.1%/0.1° dG/dP nonlinearity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 220MHz at G = +4 (±6V), supports VDSL line driver requirements |
| Slew Rate | 2000V/µs (±6V), enables fast transient response in ARB and video drivers |
| Output Current | ±500mA min (±6V), meets >380mA ADSL CPE minimum spec at +25°C |
| Harmonic Distortion | −81dBc 3rd-harmonic (5MHz, 2VPP, RL ≥ 500Ω), critical for upstream signal integrity |
| Supply Voltage Range | ±6V (spec), supports +5V single-supply and +12V operation via ±6V rails |
| Input Voltage Noise | 2nV/√Hz (f > 1MHz), preserves SNR in high-gain broadband amplification |
| Power Supply Rejection | 56dB PSRR at 100kHz, ensures stability against supply ripple in noisy DSL environments |
Pinout & Package
OPA2674IDG4 is housed in an SO-8 package (8-pin small-outline integrated circuit) with exposed pad for thermal dissipation. Pinout follows standard dual op-amp configuration with independent inverting/non-inverting inputs and outputs per channel.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input A (−In A) | High-impedance current-feedback input node for Channel A |
| 2 | Non-inverting Input A (+In A) | High-impedance input referenced to ground or common-mode voltage |
| 3 | Output A (Out A) | High-current output capable of ±500mA into 100Ω load |
| 4 | Negative Supply (−VS) | Return path for dual-supply operation; connects to −6V rail |
| 5 | Positive Supply (+VS) | Power rail connection for +6V (or +5V single-supply bias point) |
| 6 | Inverting Input B (−In B) | Current-feedback input for Channel B, electrically isolated from Channel A |
| 7 | Non-inverting Input B (+In B) | Independent high-Z input for differential or I/Q pair configuration |
| 8 | Output B (Out B) | Second high-output-current channel supporting matched I/Q amplification |
Key Features
| Feature | Design Value |
|---|---|
| Current-limit protection | ±800mA short-circuit current limit prevents latch-up during line fault conditions |
| Rail-to-rail output swing | ±5.0V min into 100Ω (±6V), enabling 10VPP signal delivery without clipping |
| Low quiescent current | 18mA total (both channels, ±6V), reduces thermal load in dense line card designs |
| High channel isolation | −92dB crosstalk at 5MHz ensures clean I/Q signal separation in modems |
| Video-optimized linearity | 0.03% NTSC differential gain error supports broadcast-quality composite video driving |
Applications
| ADSL Upstream Driver | xDSL Line Driver |
|---|---|
Use Scenario: Full-rate ADSL CPE transmitter driving twisted-pair telephone lines with peak upstream power. IC Role / Device Role / Timing Role: Final-stage current-boosting amplifier delivering >380mA into 82.5Ω line impedance with < −85dBc distortion. Use Value: Meets ITU-T G.992.1 spectral mask compliance without external boost stages. | Use Scenario: High-speed VDSL2 line card requiring >150MHz bandwidth and low harmonic distortion. IC Role / Device Role / Timing Role: Dual-channel line driver supporting simultaneous upstream/downstream paths or MIMO configurations. Use Value: 220MHz bandwidth at G = +4 enables 30MHz+ downstream channel support. |
| Cable Modem Driver | Broadband Video Distribution |
Use Scenario: DOCSIS-compliant cable modem RF front-end driving 75Ω coaxial distribution networks. IC Role / Device Role / Timing Role: Wideband current-feedback amplifier providing 10VPP output into 75Ω with flat gain to 100MHz. Use Value: Harmonic distortion < −72dBc at 5MHz ensures DOCSIS spectral purity across QAM64/256 constellations. | Use Scenario: Broadcast video equipment distributing NTSC/PAL signals to multiple monitors or encoders. IC Role / Device Role / Timing Role: Dual-channel video line driver supporting up to 10 parallel 15Ω video loads (75Ω terminated). Use Value: 0.03% dG/dP error preserves color fidelity and sync integrity across all loads. |
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 |
|---|---|---|---|
| OPA2677ID | Single-channel, same SO-8 package, 250MHz GBW, ±400mA output current | Lacks dual-channel integration; requires two devices for I/Q or differential drive | Select when space-constrained single-channel design or lower power (12mA) is prioritized over dual functionality |
| THS6042CD | Dual-channel, SO-14, ±15V operation, 200MHz bandwidth, ±350mA output | Higher supply voltage requirement; no power control logic; higher quiescent current (24mA) | Choose for legacy ±15V systems or where wider supply margin outweighs efficiency trade-offs |
Compared with OPA2674IDG4, OPA2677ID offers lower power but requires duplication for dual-path designs, while THS6042CD supports higher voltage rails but lacks power-state flexibility and delivers 30% less output current - making OPA2674IDG4 optimal for modern +5V/+12V xDSL and video infrastructure.
Availability
OPA2674IDG4 is available at Aetrix Electronics and suitable for xDSL line drivers, cable modem transmitters, ADSL CPE hardware, and broadband video distribution systems requiring stable component supply and long-term industrial availability.
Supply support for OPA2674IDG4 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 communications ICs.
The OPA2674IDG4 belongs to TI's OPA high-speed line driver family, engineered specifically for xDSL, Power Line Modem, and broadband video applications demanding high output current, low distortion, and robust thermal performance.
FAQ
What supply voltages does the OPA2674IDG4 support?
The OPA2674IDG4 is specified for ±6V dual-supply operation but supports +5V single-supply and +12V operation via split ±6V rails. At +5V, it delivers 168MHz bandwidth and ±260mA output current. Absolute maximum supply is ±6.5V. The OPA2674IDG4 must not be operated beyond these limits to ensure reliability and avoid damage.
Does the OPA2674IDG4 include power control features like the SO-14 version?
No - power control logic (A0/A1 pins) is exclusive to the SO-14 package variant (OPA2674I-14D). The OPA2674IDG4 uses the SO-8 footprint and operates only in full-power mode with fixed 18mA quiescent current. This simplifies layout for applications where dynamic power scaling is unnecessary, such as fixed-line ADSL CPE or video distribution cards.
What is the maximum capacitive load the OPA2674IDG4 can drive stably?
The OPA2674IDG4 can drive up to 100pF capacitively without external compensation, provided series resistance (RS) ≥ 60Ω is used. For larger loads (e.g., 47pF), RS = 133Ω is recommended per the datasheet's RS vs. CL curve. Stability is confirmed down to 10pF with RS = 90Ω. Exceeding these values risks peaking or oscillation in high-gain configurations.
How does the OPA2674IDG4 perform in differential I/Q amplifier configurations?
The OPA2674IDG4 supports matched I/Q channel amplification with −92dB channel-to-channel crosstalk at 5MHz and < −85dBc distortion in differential driver topologies. When configured as a differential pair (e.g., G = +9, RL = 70Ω), it achieves 220MHz large-signal bandwidth and < −90dBc 3rd-harmonic distortion at 500kHz - meeting stringent spectral mask requirements for FDD-LTE and WiMAX baseband interfaces.
Is the OPA2674IDG4 pin-compatible with other TI dual op-amps like the OPA2691?
No - the OPA2674IDG4 has a unique SO-8 pinout optimized for current-feedback operation (e.g., dedicated −VS/+VS pins, no enable or shutdown functions). The OPA2691 uses different internal architecture and pin mapping (e.g., different power and input arrangements). Direct replacement is not possible without PCB redesign. Always verify pin functions using the OPA2674IDG4 datasheet before substitution.
OPA2674IDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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
OPA2674IDG4 FAQ
1.How can I place an order for OPA2674IDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2674IDG4 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 OPA2674IDG4 reliable?
The price and inventory of OPA2674IDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2674IDG4 is usually 5 days.
3.What payment methods are accepted for OPA2674IDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2674IDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2674IDG4?
OPA2674IDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2674IDG4 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 OPA2674IDG4?
For technical support, including OPA2674IDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2674IDG4 requirements.
6.How does Aetrix verify that OPA2674IDG4 is sourced from the original manufacturer or authorized distributors?
All OPA2674IDG4 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 OPA2674IDG4 meets industry standards.
7.What is the process for return or replacement of OPA2674IDG4?
All OPA2674IDG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2674IDG4, 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 OPA2674IDG4 part is unused and in its original packaging.
Return procedure for OPA2674IDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA2674IDG4 Tags
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