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Texas Instruments OPA2674I-14DRG4
- Part No.:
- OPA2674I-14DRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2674I-14DRG4.pdf
- Description:
- IC OPAMP CFA 2 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,376
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Product details
Overview
OPA2674I-14DRG4 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 small-signal bandwidth (G = +4), 2000V/µs slew rate, and 10VPP output swing on ±6V supplies - enabling full-rate ADSL upstream drivers, xDSL line drivers, and broadband video loads up to 10×15Ω with <0.1%/0.1° dG/dP nonlinearity.
For engineers reviewing the OPA2674I-14DRG4 datasheet, OPA2674I-14DRG4 pinout, OPA2674I-14DRG4 application, or OPA2674I-14DRG4 equivalent, this page provides verified package mapping (SO-14), power-control logic interface details (A0/A1), differential I/Q channel capability, thermal resistance (100°C/W), and real-world distortion performance (−85dBc at ADSL peak power).
Technical Context
The OPA2674I-14DRG4 uses a current-feedback architecture with transimpedance gain of 135kΩ (±6V), supporting stable operation at gains ≥ +1 and delivering >160MHz large-signal bandwidth (G = +4, 5VPP). Its dual-channel layout enables matched I/Q amplification with −92dB channel-to-channel crosstalk at 5MHz.
SO-14–specific power control logic (A0/A1) enables four quiescent states: full power (18mA), power cutback (14.4mA), idle (5.1mA), and shutdown (1.4mA), with output impedance shifting from 0.01Ω (full) to 100kΩ||4pF (shutdown) and shutdown isolation of 85dB at 1MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 220MHz at G = +4 (±6V); supports VDSL line driver requirements up to 30MHz signal content with margin. |
| Slew Rate | 2000V/µs (±6V); enables clean 5VPP step response in <1.6ns without slewing distortion. |
| Output Current | ±500mA min (±6V, +25°C); drives 82.5Ω twisted-pair lines at ADSL full-rate upstream power with >380mA guaranteed minimum. |
| Harmonic Distortion | −81dBc 3rd-harmonic (±6V, 5MHz, 2VPP, RL ≥ 500Ω); meets stringent ADSL spectral mask requirements. |
| Power Control Logic | A0/A1 inputs support four discrete supply current states (1.4–19.2mA); enables dynamic power scaling without external circuitry. |
| Input Voltage Noise | 2.0nV/√Hz (>1MHz); preserves SNR in high-gain, wideband receive-path amplification stages. |
| Common-Mode Rejection | 55dB min (±6V); maintains accuracy in single-ended input configurations with shared reference. |
Pinout & Package
OPA2674I-14DRG4 is housed in a 14-pin SOIC (SO-14) package with exposed pad (thermal resistance θJA = 100°C/W), rated for −40°C to +85°C operation. Pin functions are validated per TI SBOS270C datasheet Figure "PIN CONFIGURATIONS".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (−In A) | Inverting input, Channel A | Current-feedback input node; requires matched feedback resistor (e.g., 402Ω at G = +4) for stability. |
| 2 (+In A) | Noninverting input, Channel A | High-impedance input (250kΩ||2pF); sets common-mode range (±4.5V on ±6V). |
| 3 (A0) | Power control logic, LSB | CMOS-compatible digital input; defines power state with A1 (pin 5) per datasheet Table "Power Control". |
| 4 (−VS) | Negative supply rail | Accepts −6V (max −6.5V); supports single +12V operation when tied to ground. |
| 5 (A1) | Power control logic, MSB | Paired with A0 (pin 3); selects full power (11), power cutback (10), idle (01), or shutdown (00). |
| 6 (+In B) | Noninverting input, Channel B | Independent high-Z input; enables true differential I/Q pair with matched gain and phase. |
| 7 (−In B) | Inverting input, Channel B | Current-feedback node for Channel B; identical AC/DC specs to Channel A. |
| 8 (Out A) | Output, Channel A | Capable of ±500mA drive into 25Ω; includes ±800mA short-circuit current limit. |
| 9 (NC) | No connection | Internally unconnected; must be left floating or grounded per layout best practices. |
| 10 (NC) | No connection | Internally unconnected; no routing or loading required. |
| 11 (+VS) | Positive supply rail | Accepts +6V (max +6.5V); operates from single +5V or dual ±5V with derated performance. |
| 12 (NC) | No connection | Internally unconnected; leave unconnected. |
| 13 (NC) | No connection | Internally unconnected; no electrical function. |
| 14 (Out B) | Output, Channel B | Fully independent output; supports simultaneous high-current drive with Channel A. |
Key Features
| Feature | Design Value |
|---|---|
| Four-state power control | Hardware-selectable quiescent current (1.4–19.2mA) via A0/A1 pins eliminates need for external enable sequencing. |
| Matched dual-channel topology | −92dB channel-to-channel crosstalk at 5MHz enables precise I/Q amplitude/phase matching for quadrature modulation. |
| High-current output stage | ±500mA output with ±800mA current limiting protects against line faults while maintaining ADSL CPE compliance. |
| Low distortion at high frequency | −85dBc 3rd-harmonic at 5MHz (RL ≥ 500Ω) ensures clean upstream transmission in multi-tone ADSL environments. |
| Single-supply flexibility | Operates from +5V (12.6V max) with 168MHz bandwidth and 900V/µs slew rate - suitable for compact CPE designs. |
Applications
| ADSL Upstream Driver | xDSL Line Driver |
|---|---|
|
Use Scenario: Full-rate ADSL CPE transmitting upstream data over twisted-pair telephone lines at up to 1.1MHz. IC Role / Device Role / Timing Role: Final-stage line driver amplifying differential I/Q signals to meet ITU-T G.992.1 spectral masks. Use Value: Delivers >380mA minimum output current with <−85dBc distortion at peak upstream power, ensuring regulatory compliance and noise margin. |
Use Scenario: VDSL2 line card driving 30MHz+ signals over short-loop (<500m) copper pairs. IC Role / Device Role / Timing Role: High-bandwidth, high-slew-rate buffer amplifying DAC outputs to line interface transformers. Use Value: 220MHz bandwidth and 2000V/µs slew rate preserve signal integrity across full VDSL2 frequency band without group delay distortion. |
| Cable Modem DOCSIS Driver | Broadband Video Distribution |
|
Use Scenario: DOCSIS 3.1 upstream transmitter driving 5–85MHz RF signals into 75Ω coaxial plant. IC Role / Device Role / Timing Role: Wideband current-feedback amplifier providing gain, drive strength, and harmonic suppression before upconversion. Use Value: −72dBc 2nd-harmonic (RL = 100Ω) and 100MHz 0.1dB flatness ensure clean spectrum for QAM256 upstream channels. |
Use Scenario: Driving multiple parallel 15Ω video loads (e.g., security camera matrix switchers) with NTSC/PAL signals. IC Role / Device Role / Timing Role: Composite video line driver delivering low dG/dP error across DC–6MHz bandwidth. Use Value: 0.03% differential gain and 0.01° differential phase error at 150Ω load guarantee broadcast-grade color fidelity. |
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, SO-8; same ±6V operation but no power control logic; 250MHz GBW, ±400mA output. | Lacks A0/A1 power states and dual-channel integration; suited for space-constrained single-channel designs. | Select when only one high-current channel is needed and PCB area is limited; verify thermal dissipation (θJA = 125°C/W). |
| THS6042CD | Dual-channel, SO-14; ±15V capable; 210MHz BW, ±350mA output; no integrated power control. | Higher supply voltage range supports legacy analog infrastructure; lower output current limits ADSL/VDSL use. | Choose for ±15V systems requiring dual-channel drive where power scaling is managed externally; not drop-in compatible. |
Compared with OPA2674I-14DRG4, OPA2677ID offers smaller footprint but sacrifices dual-channel matching and power-state flexibility, while THS6042CD supports higher voltage rails but lacks on-chip power control and delivers 30% less output current - making OPA2674I-14DRG4 optimal for modern low-voltage, power-aware xDSL CPE.
Availability
OPA2674I-14DRG4 is available at Aetrix Electronics and suitable for xDSL line drivers, ADSL CPE upstream transmitters, and broadband video distribution systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for OPA2674I-14DRG4 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 op amps and communications infrastructure ICs.
The OPA2674I-14DRG4 belongs to TI's OPA high-output-current amplifier family, designed specifically for DSL, cable modem, and video line driver applications demanding wide bandwidth, high drive strength, and low distortion.
FAQ
What supply voltages does the OPA2674I-14DRG4 support?
The OPA2674I-14DRG4 is specified for ±6V operation (supporting +12V single-supply configuration), but also operates from +5V or dual ±5V supplies. At +5V, it delivers 168MHz bandwidth and 900V/µs slew rate - sufficient for many ADSL and video applications with reduced power consumption.
How does the A0/A1 power control logic work on the OPA2674I-14DRG4?
The A0 (pin 3) and A1 (pin 5) inputs on the OPA2674I-14DRG4 select four discrete quiescent states: full power (A1=1, A0=1; 19.2mA), power cutback (A1=1, A0=0; 14.8mA), idle (A1=0, A0=1; 5.3mA), and shutdown (A1=0, A0=0; 1.5mA). Each state adjusts output current capability and output impedance accordingly.
Is the OPA2674I-14DRG4 unity-gain stable?
Yes, the OPA2674I-14DRG4 is unity-gain stable with 250MHz small-signal bandwidth at G = +1. Its current-feedback architecture ensures stability across gains ≥ +1 without external compensation, unlike many voltage-feedback op amps requiring gain-setting resistors.
What is the maximum capacitive load the OPA2674I-14DRG4 can drive without oscillation?
The OPA2674I-14DRG4 can safely drive up to 100pF with appropriate series resistance (RS ≈ 40Ω–90Ω depending on load), as shown in the "RECOMMENDED RS vs CAPACITIVE LOAD" plot (Figure 10). For >100pF, external isolation or active compensation is recommended to maintain phase margin.
Does the OPA2674I-14DRG4 support differential I/Q signal paths?
Yes - the OPA2674I-14DRG4's matched dual-channel architecture, −92dB channel-to-channel crosstalk at 5MHz, and identical AC/DC specifications per channel make it ideal for differential I/Q amplification in quadrature modulators and ADSL transceivers.
OPA2674I-14DRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-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:
- 14-SOIC
OPA2674I-14DRG4 FAQ
1.How can I place an order for OPA2674I-14DRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2674I-14DRG4 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 OPA2674I-14DRG4 reliable?
The price and inventory of OPA2674I-14DRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2674I-14DRG4 is usually 5 days.
3.What payment methods are accepted for OPA2674I-14DRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2674I-14DRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2674I-14DRG4?
OPA2674I-14DRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2674I-14DRG4 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 OPA2674I-14DRG4?
For technical support, including OPA2674I-14DRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2674I-14DRG4 requirements.
6.How does Aetrix verify that OPA2674I-14DRG4 is sourced from the original manufacturer or authorized distributors?
All OPA2674I-14DRG4 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 OPA2674I-14DRG4 meets industry standards.
7.What is the process for return or replacement of OPA2674I-14DRG4?
All OPA2674I-14DRG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2674I-14DRG4, 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 OPA2674I-14DRG4 part is unused and in its original packaging.
Return procedure for OPA2674I-14DRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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