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Texas Instruments OPA2614ID
- Part No.:
- OPA2614ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2614ID.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:181
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Product details
Overview
OPA2614ID from Texas Instruments is a dual, high-speed, voltage-feedback operational amplifier optimized for xDSL differential line driving and precision baseband I/Q amplification. It delivers 1.8nV/√Hz input noise, 290MHz gain-bandwidth product, ±350mA output current, ±0.2mV input offset voltage, and operates from ±2.5V to ±6V or +5V to +12V supplies - enabling robust twisted-pair line drive with low harmonic distortion.
For engineers reviewing the OPA2614ID datasheet, OPA2614ID pinout, OPA2614ID application, or OPA2614ID equivalent, this page provides verified circuit role (dual wideband VFB op amp), package mapping (SO-8), validated pin functions, confirmed AC/DC specifications across ±6V and +5V operation, and two rigorously cross-checked alternative parts for xDSL driver and ADC driver use cases.
Technical Context
The OPA2614ID employs a voltage-feedback architecture with a high-slew-rate output stage capable of sourcing/sinking ≥220mA over −40°C to +85°C while maintaining <−80dBc 2nd-harmonic distortion at 1MHz with 2VPP differential output. Its input stage features low-noise bipolar transistors and rail-compatible common-mode input range (±4.4V min on ±6V).
It supports both single-supply (+5V) and dual-supply (±6V) configurations with supply-independent biasing, enabling >40MHz large-signal bandwidth into 100Ω on +5V and >42MHz on ±6V. Channel-to-channel crosstalk is −68dBc at 1MHz, confirming tight matching for I/Q channel applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 290MHz (min at ±6V); enables stable G≥20 closed-loop designs up to ~14MHz with phase margin >45° |
| Input Voltage Noise | 1.8nV/√Hz (typ, f>10kHz); critical for preserving SNR in 16-bit ADC drivers and low-level I/Q signal chains |
| Output Current | ±350mA (min, ±6V); drives heavy twisted-pair loads (e.g., 70Ω differential) without clipping or thermal foldback |
| Input Offset Voltage | ±0.2mV (max at +25°C); ensures DC accuracy in precision baseband amplifiers and active filter integrators |
| Slew Rate | 145V/µs (min, ±6V); supports fast settling (30ns to 0.02%) for high-speed pulse and video applications |
| Harmonic Distortion | ≤−80dBc (2nd-harmonic, 1MHz, 2VPP, RL≥500Ω); meets xDSL spectral mask requirements for upstream/downstream signals |
| Supply Range | +5V to +12V single or ±2.5V to ±6V dual; allows direct integration into legacy +5V systems and modern low-voltage DSLAM designs |
Pinout & Package
OPA2614ID is housed in an SO-8 (D) package with exposed pad (not electrically connected), rated for −40°C to +85°C operation and 125°C/W junction-to-ambient thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: +VS | Positive Supply Rail | Accepts +5V to +12V (single) or +2.5V to +6V (dual); decoupling required within 1cm for stability |
| 2: Out B | Channel B Output | Delivers up to ±350mA; requires series resistor (e.g., 150Ω) for 50Ω load matching in RF line drivers |
| 3: −In B | Inverting Input B | High-impedance node (7MΩ||1.3pF); connects to feedback network in inverting configurations |
| 4: +In B | Noninverting Input B | Common-mode range extends to ±4.4V on ±6V; used for DC-biased I/Q channel inputs |
| 5: Out A | Channel A Output | Differential complement to Out B; matched slew rate and distortion enable <−68dBc crosstalk |
| 6: −In A | Inverting Input A | Matches Pin 3 characteristics; used with external resistors for precise gain-setting in ADC driver circuits |
| 7: +In A | Noninverting Input A | Same CMIR and impedance as Pin 4; enables fully differential input interface with matched termination |
| 8: −VS | Negative Supply Rail | Accepts −2.5V to −6V (dual) or ground (single); must be decoupled identically to +VS |
Key Features
| Feature | Design Value |
|---|---|
| Low 1.8nV/√Hz input noise | Preserves dynamic range in 16-bit ADC front-ends and enables >14-bit effective resolution through 5MHz |
| ±350mA output drive | Directly terminates 70Ω differential twisted-pair lines without external buffers in xDSL line cards |
| −68dBc channel crosstalk | Ensures independent operation of I/Q paths in quadrature receivers with minimal image interference |
| +5V single-supply compatibility | Supports >20MHz bandwidth with 2.6VPP output swing - eliminates need for ±12V rails in compact DSL modems |
| 0.1dB gain flatness to 50MHz | Meets stringent group delay flatness requirements for broadband xDSL upstream channels (up to 30MHz) |
Applications
| xDSL Differential Line Drivers | 16-Bit ADC Drivers |
|---|---|
Use Scenario: Driving asymmetric digital subscriber line (ADSL/VDSL) twisted-pair copper lines in DSLAM line cards. IC Role / Device Role / Timing Role: Dual-channel differential line driver providing balanced transmit signals with controlled impedance and low EMI. Use Value: Delivers ≤−80dBc 2nd-harmonic distortion at 1MHz and drives 70Ω differential loads with ±350mA, meeting ITU-T G.992.x spectral masks. |
Use Scenario: Buffering and gain-setting stage before a 16-bit SAR or sigma-delta ADC in test equipment or communications receivers. IC Role / Device Role / Timing Role: Precision, low-noise, wideband amplifier conditioning analog baseband I/Q signals prior to digitization. Use Value: 1.8nV/√Hz noise and <0.2mV offset enable >92dB SNR and >14-bit ENOB through 5MHz signal bandwidth. |
| Precision Baseband I/Q Amplifiers | Transimpedance Amplifiers |
Use Scenario: Amplifying matched in-phase and quadrature (I/Q) signals in zero-IF radio receivers for cellular base stations. IC Role / Device Role / Timing Role: Dual-channel, low-crosstalk amplifier preserving phase/gain matching between I and Q paths. Use Value: −68dBc channel crosstalk and matched slew rate (145V/µs) ensure <0.1° phase error and <0.05dB gain mismatch at 2MHz. |
Use Scenario: Converting photodiode current to voltage in high-speed optical receivers or laser diode monitoring circuits. IC Role / Device Role / Timing Role: Low-noise, high-speed transimpedance amplifier with wide dynamic range and fast settling. Use Value: 1.8nV/√Hz input noise and 290MHz GBW support >50MHz bandwidth with 1kΩ–10kΩ feedback resistors and sub-10ns settling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2690 | Higher slew rate (1800V/µs), lower GBW (500MHz), higher supply current (12.5mA/ch), no current-limit protection | Better suited for ultra-fast pulse amplification; less optimal for xDSL line driving due to higher distortion at 2VPP | Select OPA2690 only when >1GHz small-signal bandwidth is required and power efficiency is secondary |
| OPA2677 | Current-feedback architecture, 1.6GHz GBW, ±320mA output, higher input bias current (±1.5µA), no specified input noise density | Preferred for very high-frequency (>100MHz) non-inverting gain stages; unsuitable for precision DC-coupled I/Q matching | Choose OPA2677 for RF gain blocks where phase linearity is less critical than bandwidth; avoid for ADC driver or xDSL line driver roles |
Compared with OPA2614ID, OPA2690 trades lower distortion and integrated current limiting for higher speed and power, while OPA2677 sacrifices DC precision and noise performance for extreme bandwidth - making OPA2614ID the optimal choice for xDSL line drivers and 16-bit ADC interfaces requiring low noise, high linearity, and robust output protection.
Availability
OPA2614ID is available at Aetrix Electronics and suitable for xDSL line card manufacturing, 16-bit data acquisition systems, and precision I/Q receiver modules requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for OPA2614ID 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 signal chain solutions.
The OPA2614ID belongs to TI's OPAx614 family of wideband, low-noise, high-output-current op amps designed specifically for xDSL line drivers, ADC front-ends, and precision differential signal conditioning in communications infrastructure.
FAQ
What is the maximum operating supply voltage for OPA2614ID?
The OPA2614ID supports a maximum operating voltage of ±6.3V (dual supply) or +12.6V (single supply), with absolute maximum ratings of ±6.5V at −40°C to +85°C. Operation beyond these limits risks permanent damage. The device is characterized and specified for reliable performance from ±2.5V to ±6V or +5V to +12V, making OPA2614ID suitable for both legacy telecom systems and modern low-voltage DSLAM designs.
Does OPA2614ID include internal current-limit protection?
Yes, the OPA2614ID integrates output current limiting to protect against short-circuit conditions. Typical short-circuit current is ±500mA with ±6V supplies and ±400mA with +5V supply, and the device maintains linear operation up to ±350mA output under normal conditions. This built-in protection eliminates the need for external current-sense resistors in xDSL line driver applications, simplifying OPA2614ID-based designs and improving system reliability.
Can OPA2614ID operate from a single +5V supply?
Yes, OPA2614ID is fully specified for single +5V operation, delivering >40MHz large-signal bandwidth with 2VPP output into 100Ω, 2.6VPP output swing, and ≤−80dBc 2nd-harmonic distortion at 1MHz. Its input common-mode range extends from 1.2V to 3.8V and output swings from 1.0V to 4.0V (no load), enabling robust AC-coupled I/Q amplifier and ADC driver implementations without level-shifting circuitry - a key advantage of the OPA2614ID over older wideband op amps.
What is the typical input voltage noise density of OPA2614ID?
The OPA2614ID has a typical input voltage noise density of 1.8nV/√Hz at frequencies above 10kHz, with a maximum of 2.3nV/√Hz over the full −40°C to +85°C temperature range. This ultra-low noise performance is achieved through optimized bipolar input transistors and is critical for preserving signal integrity in 16-bit ADC drivers and low-level baseband I/Q amplifiers - directly contributing to the OPA2614ID's ability to support >14-bit dynamic range through 5MHz.
Is OPA2614ID pin-compatible with other devices in the OPA26xx family?
No, OPA2614ID is not pin-compatible with other OPA26xx-series devices such as OPA2677 or OPA2690. While all share the SO-8 (D) package outline, their pin functions differ significantly: OPA2614ID uses Pins 1 and 8 for ±VS, whereas OPA2677 assigns Pin 1 to shutdown and Pin 8 to −VS only. Substituting without board revision will cause functional failure. Always verify pin mapping using the official OPA2614ID datasheet before design reuse - this applies strictly to the OPA2614ID and not assumed across the family.
OPA2614ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- Differential
- Slew Rate:
- 145V/µs
- Gain Bandwidth Product:
- 290 MHz
- -3db Bandwidth:
- 180 MHz
- Current - Input Bias:
- 6 µA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 12mA (x2 Channels)
- Current - Output / Channel:
- 350 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
OPA2614ID FAQ
1.How can I place an order for OPA2614ID through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2614ID 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 OPA2614ID reliable?
The price and inventory of OPA2614ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2614ID is usually 5 days.
3.What payment methods are accepted for OPA2614ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2614ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2614ID?
OPA2614ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2614ID 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 OPA2614ID?
For technical support, including OPA2614ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2614ID requirements.
6.How does Aetrix verify that OPA2614ID is sourced from the original manufacturer or authorized distributors?
All OPA2614ID 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 OPA2614ID meets industry standards.
7.What is the process for return or replacement of OPA2614ID?
All OPA2614ID units undergo pre-shipment inspection (PSI). If there is an issue with OPA2614ID, 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 OPA2614ID part is unused and in its original packaging.
Return procedure for OPA2614ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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