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Texas Instruments OPA2652U/2K5
- Part No.:
- OPA2652U/2K5
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2652U/2K5.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,005
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Product details
Overview
OPA2652U/2K5 from Texas Instruments is a dual, wideband voltage-feedback operational amplifier optimized for high-speed differential ADC driving, video line driving, and active filter applications. It delivers 700MHz unity-gain bandwidth, 335V/µs slew rate, ±140mA output current, and 0.05%/0.03° differential gain/phase error - enabling precision NTSC video and 53MHz ADC interface (e.g., ADS807) with minimal distortion.
For engineers reviewing the OPA2652U/2K5 datasheet, OPA2652U/2K5 pinout, OPA2652U/2K5 application, or OPA2652U/2K5 equivalent, key selection criteria include its SO-8 package compatibility, ±5V supply operation, 5.5mA/channel quiescent current, and verified performance in G = +2 differential ADC driver configurations per TI SBOS125A.
Technical Context
The OPA2652U/2K5 employs classical voltage-feedback architecture with fully differential, symmetrical inputs - minimizing input offset errors and supporting accurate DC-coupled designs. Its internal unity-gain compensation ensures stability at G = +1 while delivering 700MHz small-signal bandwidth and <0.1dB flatness to 50MHz.
It operates on ±3V to ±6V supplies, supports single-supply use from +6V to +12V, and maintains 140mA sourcing/sinking capability across –40°C to +85°C. Input common-mode range extends to ±4.0V at 25°C, and closed-loop output impedance remains ≤0.06Ω below 100kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 700MHz - enables stable G = +1 buffer operation for high-fidelity signal routing without peaking (0dB typ). |
| Slew Rate | 335V/µs - supports clean 4VPP pulse response with 2.0ns rise/fall time at 200mV step. |
| Output Current | ±140mA - drives 100Ω loads to ±2.5V and 50Ω loads to ±2.2V while staying within 1W internal power limit. |
| Supply Current | 11mA total (5.5mA/channel) - low quiescent draw suitable for multi-channel, space-constrained systems. |
| Differential Gain/Phase | 0.05%/0.03° @ NTSC - meets broadcast-grade video linearity requirements without external trimming. |
| Input Offset Voltage | ±1.5mV max - ensures <1LSB error when driving 12-bit ADCs like ADS807 with DC-coupled inputs. |
| Gain Bandwidth Product | 200MHz - predicts usable bandwidth at higher gains (e.g., 45MHz at G = +5). |
Pinout & Package
OPA2652U/2K5 is packaged in an SO-8 (D package), surface-mount plastic small-outline integrated circuit with exposed pad not present. Pin 1 is marked via laser trim or mold index; top-view orientation follows standard SO-8 convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (+In A) | Noninverting input, Channel A | DC-coupled high-impedance node; requires bias current cancellation resistor (e.g., 205Ω to ground) for optimal offset performance. |
| 2 (–In A) | Inverting input, Channel A | Primary feedback node; connects to RF/RG network; parasitic capacitance must be minimized for >200MHz stability. |
| 3 (Out A) | Output, Channel A | Capable of ±140mA drive; requires local 0.1µF VS+–VS– decoupling and series isolation resistor for >2pF capacitive loads. |
| 4 (–VS) | Negative supply rail | Connects to –5V (or –3V to –6V); shares return path with other channels; must be low-inductance. |
| 5 (+VS) | Positive supply rail | Connects to +5V (or +3V to +6V); decoupled to –VS with 0.1µF ceramic capacitor per TI layout guidelines. |
| 6 (–In B) | Inverting input, Channel B | Independent second channel input; identical electrical behavior to Pin 2; supports dual-path signal conditioning. |
| 7 (+In B) | Noninverting input, Channel B | Independent second channel noninverting input; matches Pin 1 functionality and layout requirements. |
| 8 (Out B) | Output, Channel B | Independent second channel output; electrically isolated from Out A; supports simultaneous dual ADC channel driving. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-wide unity-gain bandwidth | 700MHz enables direct buffering of IF/RF signals up to UHF without gain-stage cascading. |
| Low distortion at video frequencies | 0.05%/0.03° dG/dφ and –100dBc crosstalk support studio-grade composite video distribution. |
| High-output-current dual architecture | ±140mA per channel allows driving matched 50Ω or 75Ω transmission lines without external buffers. |
| Optimized for differential ADC interfaces | Verified G = +2 performance with ADS807; AC-coupled outputs accommodate supply-voltage mismatch between analog and digital domains. |
| Thermally robust SO-8 package | θJA = 125°C/W enables sustained operation at full output into 100Ω loads at +85°C ambient. |
Applications
| Differential ADC Driver | Consumer Video Line Driver |
|---|---|
Use Scenario: Driving the ADS807 12-bit, 53MHz sampling ADC differentially with ±5V analog supply and 3.3V digital domain. IC Role / Device Role / Timing Role: Dual-channel voltage-feedback op amp configured as G = +2 differential driver; provides balanced, low-noise analog input to ADC front-end. Use Value: Enables full 12-bit ENOB by maintaining <0.05% differential gain error and suppressing even-order harmonics via true differential topology. | Use Scenario: Transmitting NTSC composite video over 75Ω coaxial cable in set-top boxes or DVRs. IC Role / Device Role / Timing Role: Single-channel video line driver operating at G = +1 with 75Ω source/load termination. Use Value: Meets SMPTE 253M broadcast linearity specs with 0.03° phase error and supports >500k-hour MTBF in consumer temperature range. |
| Active Bandpass Filter | Pulse Delay Circuit |
Use Scenario: Implementing a sixth-order bandpass filter (450kHz–11MHz) for IF signal conditioning in software-defined radio receivers. IC Role / Device Role / Timing Role: Dual op amp used in cascaded Sallen-Key and double-pole sections; one channel per stage. Use Value: Achieves 0.3dB passband ripple and –23dB stopband rejection without external trimming, leveraging 700MHz GBW for sharp roll-off control. | Use Scenario: Generating precise, temperature-stable time delays (e.g., 2 × 2RC = 40ns) in high-speed test equipment clock alignment paths. IC Role / Device Role / Timing Role: Dual op amp configured as cascaded single-pole all-pass filters; each channel contributes one delay stage. Use Value: Delivers group delay flatness <±0.5ns over 10MHz–100MHz due to ultra-low phase nonlinearity (0.03° dφ). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wideband voltage-feedback op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2650U | Lower 350MHz unity-gain bandwidth; same SO-8 package and ±5V operation. | Not suitable for >40MHz ADC drivers or NTSC video; acceptable for lower-frequency active filters. | Select OPA2650U only if bandwidth demand is ≤350MHz and cost reduction is critical. |
| AD8056ARZ | Higher 300mA output current but 500MHz unity-gain bandwidth; requires ±5V, not single-supply capable. | Better for heavy capacitive loads (>100pF); less optimal for low-distortion video due to 0.1%/0.1° dG/dφ. | Choose AD8056ARZ when driving long cables or multiple loads where current >140mA is mandatory. |
Compared with OPA2652U/2K5, OPA2650U trades 350MHz bandwidth for lower cost in non-critical speed applications, while AD8056ARZ offers higher drive strength at the expense of video-grade linearity and reduced unity-gain stability margin.
Availability
OPA2652U/2K5 is available at Aetrix Electronics and suitable for differential ADC driver, consumer video line driver, active bandpass filter, pulse delay circuit, and high-speed instrumentation requiring stable component supply across industrial temperature range.
Supply support for OPA2652U/2K5 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 heritage in high-performance op amps and data converters.
The OPA2652U/2K5 belongs to TI's OPAx652 family of wideband voltage-feedback op amps, designed specifically for cost-sensitive, high-speed signal conditioning in ADC interfaces, video infrastructure, and communications systems.
FAQ
What supply voltages does the OPA2652U/2K5 support?
The OPA2652U/2K5 operates from ±3V to ±6V dual supplies and supports single-supply operation from +6V to +12V. At ±5V, it delivers full 700MHz unity-gain bandwidth and ±140mA output current. Operation outside these ranges risks violating absolute maximum ratings and degrading AC performance per TI SBOS125A Section 6.1.
Can the OPA2652U/2K5 drive 75Ω video loads directly?
Yes - the OPA2652U/2K5 can drive 75Ω video loads directly in G = +1 configuration with 402Ω feedback and gain-setting resistors, achieving 0.05%/0.03° differential gain/phase error per NTSC testing. TI Application Note SBOS125A Figure 32 confirms this topology, and the ±140mA output current ensures compliance with SMPTE 253M load transient requirements.
Is the OPA2652U/2K5 pin-compatible with the OPA2650U?
Yes - the OPA2652U/2K5 and OPA2650U share identical SO-8 (D) package footprints, pin assignments, and supply pin locations. However, OPA2650U has lower 350MHz unity-gain bandwidth and reduced slew rate (220V/µs), so functional substitution requires verification of signal bandwidth and settling time in the target application.
How does the OPA2652U/2K5 handle capacitive loads?
The OPA2652U/2K5 becomes unstable with >2pF direct capacitive loads. TI recommends inserting a series isolation resistor (RS) between the output and load - values from 5Ω to 40Ω depending on capacitance (see SBOS125A Figure 17). For 22pF loads, RS ≈ 15Ω restores >45° phase margin while preserving pulse fidelity and bandwidth.
What is the thermal resistance of the OPA2652U/2K5 in SO-8 package?
The OPA2652U/2K5 in SO-8 (D) package has a junction-to-ambient thermal resistance (θJA) of 125°C/W under standard JEDEC 2-layer board conditions. This value assumes 1in² copper pour on both top and bottom layers; reducing copper area increases θJA, potentially limiting continuous 140mA output at +85°C ambient.
OPA2652U/2K5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SpeedPlus™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 335V/µs
- Gain Bandwidth Product:
- 200 MHz
- -3db Bandwidth:
- 700 MHz
- Current - Input Bias:
- 4 µA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 11mA (x2 Channels)
- Current - Output / Channel:
- 140 mA
- Voltage - Supply Span (Min):
- 6 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA2652U/2K5 FAQ
1.How can I place an order for OPA2652U/2K5 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2652U/2K5 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 OPA2652U/2K5 reliable?
The price and inventory of OPA2652U/2K5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2652U/2K5 is usually 5 days.
3.What payment methods are accepted for OPA2652U/2K5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2652U/2K5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2652U/2K5?
OPA2652U/2K5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2652U/2K5 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 OPA2652U/2K5?
For technical support, including OPA2652U/2K5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2652U/2K5 requirements.
6.How does Aetrix verify that OPA2652U/2K5 is sourced from the original manufacturer or authorized distributors?
All OPA2652U/2K5 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 OPA2652U/2K5 meets industry standards.
7.What is the process for return or replacement of OPA2652U/2K5?
All OPA2652U/2K5 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2652U/2K5, 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 OPA2652U/2K5 part is unused and in its original packaging.
Return procedure for OPA2652U/2K5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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