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Texas Instruments OPA2674IDRG4
- Part No.:
- OPA2674IDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2674IDRG4.pdf
- Description:
- IC OPAMP CFA 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,621
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Product details
Overview
OPA2674IDRG4 from Texas Instruments is a dual wideband current-feedback operational amplifier optimized for high-output-current line driver applications. It delivers 500mA output current per channel, 220MHz bandwidth at G = +4, 2000V/µs slew rate, and ±10VPP output swing on ±6V supplies - enabling ADSL/VDSL upstream drivers, broadband video line drivers, and matched I/Q channel amplifiers in single- or dual-supply systems.
For engineers reviewing the OPA2674IDRG4 datasheet, OPA2674IDRG4 pinout, OPA2674IDRG4 application, or OPA2674IDRG4 equivalent, key selection criteria include its SO-8 package, current-limiting protection (±800mA), flexible power control (SO-14 only), differential distortion performance (< −85dBc at ADSL peak power), and support for +5V, ±5V, or ±6V operation with guaranteed 380mA minimum output current at +25°C.
Technical Context
The OPA2674IDRG4 employs a current-feedback architecture with transimpedance gain of 135kΩ (typ) and low input impedance (22–25Ω at inverting node), enabling stable high-gain, high-bandwidth operation without phase compensation. Its output stage supports rail-to-rail voltage swing within 1V of supply rails and maintains linear performance into heavy capacitive and resistive loads (e.g., 15Ω video loads or 100Ω twisted-pair lines).
Unlike voltage-feedback op amps, the OPA2674IDRG4's bandwidth remains largely independent of closed-loop gain - delivering 220MHz at G = +4 and 250MHz at G = +1 - while maintaining < 0.1%/0.1° dG/dP nonlinearity across 10 parallel video loads. Its internal current limiting and thermal shutdown protect against sustained overload conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (G = +4) | 220MHz min - supports full-rate VDSL line driver requirements up to 12MHz upstream spectrum. |
| Slew Rate | 2000V/µs min - enables clean 10VPP large-signal response at >100MHz without slewing distortion. |
| Output Current | ±500mA min per channel - drives 100Ω twisted-pair lines or 15Ω video loads with >380mA guaranteed at +25°C. |
| Harmonic Distortion | −81dBc 3rd-harmonic (RL ≥ 500Ω, 5MHz, 2VPP) - meets ADSL spectral mask requirements for upstream transmission. |
| Supply Range | ±6V (spec), +5V or ±5V supported - operates from single +5V supply with 3.9V max positive output swing (RL = 100Ω). |
| Input Voltage Noise | 2.0nV/√Hz typ - preserves SNR in high-gain, wideband signal chains such as cable modem receivers. |
| Power Supply Rejection | 56dB min (±6V, 100kHz) - suppresses supply ripple in mixed-signal DSL front-ends with shared analog/digital rails. |
Pinout & Package
OPA2674IDRG4 is housed in an SO-8 surface-mount package (JEDEC MS-012AC, 150mil width), with exposed pad for thermal enhancement. Pinout matches industry-standard dual op amp configuration and is fully compatible with PCB footprints for OPA2674ID and similar TI dual CFB amplifiers.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input B | Current-summing node for Channel B; low impedance (~22Ω) enables stable high-frequency feedback. |
| 2 | Noninverting Input B | High-impedance input (250kΩ || 2pF); referenced to common-mode voltage range of ±4.5V (±6V supply). |
| 3 | Output B | Class-AB output stage capable of ±500mA sourcing/sinking; short-circuit protected to ±800mA. |
| 4 | −VS | Negative supply rail connection; must be decoupled with 0.1µF ceramic capacitor near pin. |
| 5 | +VS | Positive supply rail connection; supports ±6V, ±5V, or +5V operation with internal biasing independence. |
| 6 | Noninverting Input A | High-impedance input for Channel A; identical CMIR and noise specs to Pin 2. |
| 7 | Inverting Input A | Current-summing node for Channel A; matched to Pin 1 for differential pair stability. |
| 8 | Output A | Independent high-current output; no crosstalk coupling - −92dB channel-to-channel isolation at 5MHz. |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable | 250MHz bandwidth at G = +1 - eliminates need for external compensation in buffer or gain-of-one configurations. |
| Current-limit protection | ±800mA short-circuit current limit - prevents latch-up and thermal runaway during line fault conditions. |
| Low quiescent current | 18mA total (±6V) - enables high-density line card designs with minimal thermal load and power budget impact. |
| Video-optimized linearity | 0.03% NTSC differential gain error (RL = 150Ω) - supports broadcast-quality composite video distribution over coax. |
| Wide supply flexibility | Operates from +5V, ±5V, or ±6V - simplifies system-level power architecture in multi-rail DSLAM or CPE platforms. |
Applications
| ADSL/VDSL Upstream Driver | Broadband Video Line Driver |
|---|---|
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: High-current, low-distortion line driver amplifying baseband I/Q signals before DAC and hybrid interface. Use Value: Delivers >380mA output current with < −85dBc 3rd-harmonic distortion at peak upstream power, meeting ITU-T G.992.5 spectral masks. | Use Scenario: Driving multiple 75Ω coaxial video outputs from a single source in broadcast infrastructure or set-top box design. IC Role / Device Role / Timing Role: Composite video buffer amplifier supporting NTSC/PAL standards with minimal dG/dP degradation. Use Value: Maintains 0.03% differential gain and 0.01° differential phase error into 150Ω loads, enabling 10 parallel video outputs with <0.1%/0.1° nonlinearity. |
| Matched I/Q Channel Amplifier | ARB Signal Generator Output Stage |
Use Scenario: Amplifying quadrature-modulated RF baseband signals in software-defined radio (SDR) transceivers and vector signal analyzers. IC Role / Device Role / Timing Role: Dual-channel, matched-gain amplifier ensuring precise amplitude and phase tracking between I and Q paths. Use Value: −92dB input-referred channel-to-channel crosstalk and <0.5dB gain matching between channels enable <−60dBc image rejection. | Use Scenario: Final-stage amplification of arbitrary waveform generator outputs requiring fast settling, high slew, and low harmonic content. IC Role / Device Role / Timing Role: Wideband output driver for precision AWG systems generating complex modulated waveforms up to 100MHz. Use Value: 2000V/µs slew rate and 220MHz bandwidth preserve edge fidelity in pulsed RF and radar test signals; ±500mA drive supports 50Ω termination with minimal droop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-output-current, wideband amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2677ID | Single-channel, same SO-8 package; 220MHz bandwidth, 500mA output, but no power control logic inputs. | Used where dual-channel integration is unnecessary and board space allows two singles instead of one dual. | Select OPA2677ID when only one channel is needed and layout simplicity outweighs dual-channel crosstalk advantage. |
| THS6042CD | SO-14 dual CFB amp; ±15V rated, 200MHz bandwidth, 400mA output; lacks current limit and power control features. | Preferred in industrial instrumentation or legacy ±15V systems where higher supply headroom is available. | Choose THS6042CD for ±15V applications requiring wider dynamic range but accepting higher quiescent current (24mA) and no integrated current limiting. |
Compared with OPA2674IDRG4, OPA2677ID offers identical per-channel performance in a single-channel footprint but requires duplication for dual-path designs, while THS6042CD provides higher supply tolerance at the cost of reduced output current, missing power control, and no built-in current limiting - making OPA2674IDRG4 optimal for space-constrained, power-aware DSL and video line driver implementations.
Availability
OPA2674IDRG4 is available at Aetrix Electronics and suitable for xDSL line drivers, broadband video distribution systems, and matched I/Q channel amplifiers requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for OPA2674IDRG4 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, embedded processing, and connectivity technologies with over 50 years of innovation in high-performance amplifiers and data converters.
The OPA2674IDRG4 belongs to TI's OPA high-speed operational amplifier product line, engineered specifically for demanding line driver, communications infrastructure, and video signal conditioning applications requiring wide bandwidth, high output current, and low distortion.
FAQ
What supply voltages does the OPA2674IDRG4 support?
The OPA2674IDRG4 is specified for ±6V operation but supports +5V single-supply, ±5V dual-supply, and even +12V single-supply configurations (with appropriate external biasing). At +5V, it delivers ±260mA output current and 168MHz bandwidth (G = +4); at ±6V, it achieves ±500mA and 220MHz. The device uses supply-independent biasing, enabling robust performance across these ranges without recalibration.
Does the OPA2674IDRG4 include power control features?
No - power control (A0/A1 logic inputs for full power, cutback, idle, and shutdown modes) is exclusive to the SO-14 variant (OPA2674I-14D). The OPA2674IDRG4 is the SO-8 version and operates only in full-power mode with fixed 18mA quiescent current at ±6V. This simplifies design for applications where dynamic power scaling is not required.
What is the maximum capacitive load the OPA2674IDRG4 can drive stably?
The OPA2674IDRG4 can drive up to 100pF capacitively without external compensation, provided a series resistor (RS) of ≥60Ω is used in the feedback path. For larger loads (e.g., 470pF), RS ≥ 133Ω is recommended. Stability is verified via frequency response plots showing <0.2dB peaking up to 100pF in typical configurations - critical for driving long PCB traces or coaxial cables in video and DSL applications.
How does the OPA2674IDRG4 handle differential distortion in I/Q applications?
In differential configurations (e.g., matched I/Q drivers), the OPA2674IDRG4 achieves <−85dBc 3rd-harmonic distortion at 500kHz and 4VPP output into 70Ω, with <−90dBc at lower frequencies. Its matched channel characteristics - including −92dB crosstalk and <0.5dB gain mismatch - ensure image rejection >60dB in quadrature modulation systems, directly supporting DOCSIS 3.1 and LTE FDD transmitter linearity requirements.
Is the OPA2674IDRG4 RoHS-compliant and lead-free?
Yes - the OPA2674IDRG4 is RoHS-compliant and lead-free, with a matte tin finish on its SO-8 package leads. It meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL-3) and is qualified for reflow soldering per IPC/JEDEC J-STD-020. TI's official packaging documentation confirms Pb-free status and halogen-free construction for this part number.
OPA2674IDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
OPA2674IDRG4 FAQ
1.How can I place an order for OPA2674IDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2674IDRG4 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 OPA2674IDRG4 reliable?
The price and inventory of OPA2674IDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2674IDRG4 is usually 5 days.
3.What payment methods are accepted for OPA2674IDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2674IDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2674IDRG4?
OPA2674IDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2674IDRG4 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 OPA2674IDRG4?
For technical support, including OPA2674IDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2674IDRG4 requirements.
6.How does Aetrix verify that OPA2674IDRG4 is sourced from the original manufacturer or authorized distributors?
All OPA2674IDRG4 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 OPA2674IDRG4 meets industry standards.
7.What is the process for return or replacement of OPA2674IDRG4?
All OPA2674IDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2674IDRG4, 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 OPA2674IDRG4 part is unused and in its original packaging.
Return procedure for OPA2674IDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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