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Texas Instruments OPA2677IRGVR
- Part No.:
- OPA2677IRGVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
OPA2677IRGVR.pdf
- Description:
- IC OPAMP CFA 2 CIRCUIT 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,269
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Product details
Overview
OPA2677IRGVR from Texas Instruments is a dual, wideband current-feedback operational amplifier designed for high-output-current line driver applications. It delivers 500mA output current, 200MHz bandwidth at G = +4, ±5V output swing into 100Ω, 1800V/µs slew rate, and operates on ±2.5V to ±6V or +5V to +12V supplies - enabling xDSL and broadband video line driving with low harmonic distortion.
For engineers reviewing the OPA2677IRGVR datasheet, OPA2677IRGVR pinout, OPA2677IRGVR application, or OPA2677IRGVR equivalent, key selection considerations include its QFN-16 package thermal performance (θJA = 50°C/W), differential I/Q channel matching capability, high-current drive into capacitive loads, and single-supply +5V operation with >100MHz large-signal bandwidth.
Technical Context
The OPA2677IRGVR uses a current-feedback architecture where bandwidth and distortion remain stable across gains (+1 to +8), unlike voltage-feedback op amps. Its transimpedance gain of 135kΩ and low input impedance (250kΩ || 2pF) enable fast settling and minimal gain-dependent peaking.
It features a thermally enhanced QFN-16 package with exposed thermal pad tied to –VS, supporting continuous 500mA sourcing/sinking per channel while maintaining junction temperature below 150°C under typical ADSL CPE load conditions. Input common-mode range extends to ±4.5V on ±6V supplies, and output swing reaches ±4.7V into 100Ω.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (G = +4) | 200MHz - supports full-rate VDSL line driver requirements with flat gain response up to 80MHz (0.1dB flatness). |
| Output Current | ±500mA min - drives demanding ADSL CPE loads (>380mA @ +25°C) and 10 parallel 15Ω video loads. |
| Slew Rate | 1800V/µs - enables clean 5VPP step response with <1.75ns rise/fall time, critical for high-fidelity video and arb waveform fidelity. |
| Supply Range | +5V to +12V single or ±2.5V to ±6V dual - supports legacy +5V systems and high-headroom +12V xDSL designs without level-shifting. |
| Harmonic Distortion | –82dBc (2nd), –93dBc (3rd) @ 5MHz, 2VPP, RL ≥ 500Ω - meets stringent NTSC dG/dφ (<0.05%/0.04°) and upstream ADSL spectral mask requirements. |
| Thermal Resistance θJA | 50°C/W - achieved via soldered exposed thermal pad to –VS plane, enabling sustained 1W/channel dissipation in compact layouts. |
| Input Voltage Noise | 2nV/√Hz @ f > 1MHz - preserves SNR in wideband receiver front-ends and I/Q demodulator chains. |
Pinout & Package
OPA2677IRGVR is housed in a 4mm × 4mm, 16-pin QFN package (RGV) with wettable flanks and an exposed thermal pad that must be connected to the –VS plane for thermal and electrical integrity. Pin 1 is marked by a dot; the thermal pad is electrically tied to –VS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 5, 12, 16 | No Connect (NC) | Not internally bonded; must be left floating or grounded per layout best practices - no signal routing required. |
| 2, 11 | Inverting Input (A & B) | Differential input nodes for each amplifier; high-impedance current-input node in CFB topology. |
| 3, 10 | Noninverting Input (A & B) | High-impedance voltage-sensing node; common-mode range extends to ±4.5V on ±6V supplies. |
| 6, 15 | Output (A & B) | Capable of ±500mA continuous output; requires external series resistor (e.g., 133Ω) for 50Ω source termination in RF line drivers. |
| 7 | +VS | Positive supply pin - accepts +5V to +12V (single) or +6V (dual); decoupling capacitor required within 2mm. |
| 8 | –VS | Negative supply pin - connects to ground (single-supply) or –6V (dual); also ties thermal pad for optimal θJA. |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable CFB architecture | 220MHz bandwidth at G = +1 - eliminates need for external compensation in gain-setting networks across 1–8× range. |
| High-output-current linear stage | Delivers >380mA @ +25°C with <–85dBc distortion at ADSL peak upstream power - avoids external boost stages. |
| Single-supply +5V operation | Supports >100MHz large-signal bandwidth and 3VPP output swing - enables cost-sensitive consumer broadband modems. |
| Matched dual-channel performance | Channel-to-channel crosstalk <–92dB @ 5MHz - ensures precise I/Q amplitude/phase tracking in quadrature modulators. |
| Low quiescent current | 18mA total (9mA/ch) @ ±6V - reduces system power budget while sustaining high dynamic performance. |
Applications
| xDSL Line Driver | Cable Modem Upstream Driver |
|---|---|
Use Scenario: Driving twisted-pair copper lines in ADSL2+/VDSL2 CPE equipment with >380mA peak current and spectral compliance to ITU-T G.992.5/G.993.2. IC Role / Device Role / Timing Role: Final-stage line driver amplifier delivering differential analog signals to line interface unit (LIU) transformers. Use Value: Eliminates discrete MOSFET output stage; achieves <–85dBc upstream distortion at full-rate ADSL without external current boosting. |
Use Scenario: Transmitting DOCSIS-compliant upstream RF signals (5–65MHz) into 75Ω coaxial plant with high SFDR and low group delay variation. IC Role / Device Role / Timing Role: High-linearity, wideband current-feedback driver for DAC output buffering before upconversion. Use Value: Delivers >150MHz bandwidth and –71dBc 2nd-harmonic @ 5MHz into 500Ω - meets DOCSIS 3.1 upstream spectral mask requirements. |
| Broadband Video Line Driver | Matched I/Q Channel Amplifier |
Use Scenario: Driving multiple parallel 15Ω composite video loads (e.g., security DVR outputs) with broadcast-grade NTSC/PAL fidelity. IC Role / Device Role / Timing Role: Dual-channel buffer amplifier providing simultaneous drive to multiple downstream video paths. Use Value: Achieves <0.05% differential gain and <0.04° differential phase error into 37.5Ω - exceeds SMPTE RP 168 specification. |
Use Scenario: Amplifying in-phase (I) and quadrature (Q) baseband signals in direct-conversion transceivers for WiMAX/LTE small cells. IC Role / Device Role / Timing Role: Matched dual op amp providing identical gain, phase, and distortion characteristics to both I and Q paths. Use Value: <–92dB channel crosstalk and <0.1° inter-channel phase mismatch preserve EVM <2.5% in 20MHz LTE signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-output-current, wideband operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2691IDGKR | Higher 270MHz bandwidth at G = +2, but lower 350mA output current and no +5V operation support. | Preferred for >200MHz RF IF amplification where output current <300mA suffices; not suitable for ADSL CPE peak-current demands. | Select when bandwidth priority outweighs output current; verify thermal margin with θJA = 65°C/W (MSOP-8). |
| THS6042CD | ±15V capable, 400mA output, but only 120MHz bandwidth at G = +2 and higher 24mA quiescent current. | Used in legacy ±12V video infrastructure; lacks +5V compatibility and fails ADSL distortion specs above 2MHz. | Choose for industrial analog systems requiring rail-to-rail input and ±15V headroom - not for modern broadband modem designs. |
Compared with OPA2677IRGVR, OPA2691IDGKR trades output current for bandwidth and thermal efficiency, while THS6042CD offers wider supply range at the expense of speed and distortion performance - making OPA2677IRGVR the optimal choice for space-constrained, +5V/+12V broadband line drivers needing >380mA and <–82dBc distortion.
Availability
OPA2677IRGVR is available at Aetrix Electronics and suitable for xDSL line driver, cable modem upstream transmitter, and broadband video distribution applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized channels.
Supply support for OPA2677IRGVR 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 decades of innovation in high-speed amplifiers and signal chain solutions.
The OPA2677IRGVR belongs to TI's high-output-current current-feedback op amp product line, engineered specifically for broadband communications infrastructure - including DSL, cable, and video line drivers where high slew rate, low distortion, and thermal robustness are critical.
FAQ
What is the maximum continuous output current specification for OPA2677IRGVR?
The OPA2677IRGVR is specified for ±500mA minimum continuous output current per channel at +25°C with ±6V supplies and RL = 100Ω. At elevated temperatures (+85°C), it maintains ±320mA minimum. Peak sourcing/sinking currents reach +1.2A/–1.6A for short durations, provided junction temperature remains ≤150°C. This rating is validated in the SO-8, HSOP-8, and QFN-16 packages per SBOS126I datasheet Section 6.5.
Does OPA2677IRGVR support true single-supply operation from +5V?
Yes, OPA2677IRGVR supports +5V single-supply operation with verified performance: >100MHz large-signal bandwidth (G = +4, VO = 2VPP), 3VPP output swing, and 200mA output current into 100Ω. Input common-mode range extends from 1.3V to 3.7V, allowing use with simple resistive biasing (e.g., 806Ω dividers). All +5V specifications are fully characterized in Section 4 of the SBOS126I datasheet.
What is the recommended thermal pad connection for OPA2677IRGVR in QFN-16 (RGV) package?
The exposed thermal pad of the OPA2677IRGVR QFN-16 package must be soldered directly to the –VS (negative supply) copper plane on the PCB to achieve the specified θJA = 50°C/W. Leaving the pad unconnected raises thermal resistance to 75°C/W, risking thermal shutdown under sustained 500mA load. The pad is electrically connected to –VS internally - no isolation is permitted.
Can OPA2677IRGVR be used in differential I/Q amplifier configurations?
Yes, OPA2677IRGVR is explicitly designed for matched dual-channel differential applications. Figure 5 in the SBOS126I datasheet shows a noninverting differential configuration achieving AD = 1 + 2·RF/RG, with <0.1° inter-channel phase mismatch and <–92dB crosstalk at 5MHz. Its current-feedback architecture ensures consistent bandwidth across I and Q paths without gain-dependent tuning.
What are the absolute maximum supply voltage ratings for OPA2677IRGVR?
The absolute maximum supply voltage for OPA2677IRGVR is ±6.5V DC across +VS and –VS pins. Operation beyond this risks permanent damage. The device is specified for normal operation from ±2.5V to ±6V (dual) or +5V to +12V (single), with maximum operating voltage of ±6.3V or +12.6V respectively - all values confirmed in Section 6.1 (Absolute Maximum Ratings) of SBOS126I.
OPA2677IRGVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-VQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 2000V/µs
- Gain Bandwidth Product:
- 220 MHz
- -3db Bandwidth:
- 250 MHz
- Current - Input Bias:
- 10 µA
- Voltage - Input Offset:
- 800 µV
- 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:
- 16-VQFN (4x4)
OPA2677IRGVR FAQ
1.How can I place an order for OPA2677IRGVR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2677IRGVR 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 OPA2677IRGVR reliable?
The price and inventory of OPA2677IRGVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2677IRGVR is usually 5 days.
3.What payment methods are accepted for OPA2677IRGVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2677IRGVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2677IRGVR?
OPA2677IRGVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2677IRGVR 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 OPA2677IRGVR?
For technical support, including OPA2677IRGVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2677IRGVR requirements.
6.How does Aetrix verify that OPA2677IRGVR is sourced from the original manufacturer or authorized distributors?
All OPA2677IRGVR 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 OPA2677IRGVR meets industry standards.
7.What is the process for return or replacement of OPA2677IRGVR?
All OPA2677IRGVR units undergo pre-shipment inspection (PSI). If there is an issue with OPA2677IRGVR, 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 OPA2677IRGVR part is unused and in its original packaging.
Return procedure for OPA2677IRGVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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