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Texas Instruments OPA2652U
- Part No.:
- OPA2652U
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2652U.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,689
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Product details
Overview
OPA2652U from Texas Instruments is a dual, voltage-feedback operational amplifier optimized for high-speed signal conditioning in ADC driver, video line driver, and active filter applications. It delivers 700MHz unity-gain bandwidth, 335V/µs slew rate, ±140mA output current, and ±1.5mV input offset voltage across –40°C to +85°C, operating on ±3V to ±6V supplies.
For engineers reviewing the OPA2652U datasheet, OPA2652U pinout, OPA2652U application, or OPA2652U equivalent, key selection criteria include its differential gain error (0.05%), phase error (0.03°), channel-to-channel crosstalk (–100dBc at 5MHz), and SO-8 package compatibility with ±5V bipolar or +6V to +12V single-supply operation.
Technical Context
The OPA2652U implements classical voltage-feedback architecture with fully differential, symmetrical inputs-enabling precise DC accuracy and low even-order distortion in differential ADC driving topologies. Its internal unity-gain compensation ensures stability without external components while supporting noninverting gains up to +10 and inverting gains down to –1.
Designed for wideband analog signal paths, it maintains 50MHz 0.1dB flatness and 66dB SFDR at 5MHz into 100Ω, with input voltage noise of 8nV/√Hz and current noise of 1.4pA/√Hz above 1MHz-making it suitable for high-fidelity composite video and medium-speed data acquisition systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 700MHz - enables stable buffer operation for >100MHz baseband signals without peaking (0dB typ) |
| Slew Rate | 335V/µs - supports clean 4VPP pulse response with 2.0ns rise/fall time |
| Output Current | ±140mA - drives 50Ω loads to ±2.2V or 100Ω to ±2.5V while staying within 1W internal power limit |
| Input Offset Voltage | ±1.5mV max - ensures <0.1% gain error in precision gain stages with 1kΩ feedback networks |
| Differential Gain/Phase Error | 0.05%/0.03° - meets NTSC broadcast video linearity requirements into 150Ω loads |
| Supply Range | ±3V to ±6V - operates from ±5V standard rails or extended ±6V for headroom-critical designs |
| Quiescent Current | 5.5mA per channel - achieves 200MHz gain-bandwidth product at low power for dual-channel space-constrained layouts |
Pinout & Package
OPA2652U is housed in an SO-8 (D) surface-mount package with exposed pad not electrically connected. Pin 1 is marked with a dot; top-view pin numbering follows standard SOIC convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (+VS) | Positive supply rail | Connects to +5V (or +6V max); requires local 0.1µF decoupling to –VS pin |
| 2 (Out B) | Channel B output | Capable of sourcing/sinking ±140mA; isolate capacitive loads with series resistor ≤20Ω |
| 3 (–In B) | Inverting input B | DC-coupled node; bias current cancellation requires matched resistance to +In B |
| 4 (+In B) | Noninverting input B | High-impedance differential pair input; common-mode range extends to ±4.0V at +25°C |
| 5 (Out A) | Channel A output | Electrically identical to Out B; independent output stage with no shared thermal path |
| 6 (–In A) | Inverting input A | Used in inverting configurations; gain set by RF/RG ratio; parasitic capacitance limits bandwidth if RG >1.5kΩ |
| 7 (+In A) | Noninverting input A | Primary input for unity-gain buffer; 25Ω series resistor recommended for optimal AC response |
| 8 (–VS) | Negative supply rail | Connects to –5V (or –6V max); 0.1µF capacitor between +VS and –VS improves 2nd-harmonic distortion by 3–6dB |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-wideband unity-gain buffer | 700MHz bandwidth with <0.1dB peaking enables direct connection to high-speed ADC front-ends without added filtering |
| Low-distortion video driver | 0.05%/0.03° dG/dφ meets NTSC studio-grade linearity specs into 150Ω, eliminating post-compensation circuitry |
| High-output-current dual channel | ±140mA per channel allows simultaneous driving of multiple 50Ω transmission lines or active filter stages |
| Optimized for ±5V operation | Specified performance at ±5V with 5.5mA/channel quiescent current-ideal for legacy analog video and data acquisition systems |
| SO-8 thermal performance | 125°C/W junction-to-ambient thermal resistance enables continuous operation at full output swing up to +85°C ambient |
Applications
| Differential ADC Driver | Consumer Video Line Driver |
|---|---|
Use Scenario: Driving ADS807 12-bit, 53MHz ADC differentially with AC-coupled outputs to match supply domain differences. IC Role / Device Role / Timing Role: Dual-channel voltage-feedback op amp configured as G = +2 noninverting amplifier with 133Ω bias resistors minimizing DC offset. Use Value: Achieves 66dB SFDR at 5MHz and preserves ADC ENOB by suppressing second-harmonic distortion via differential topology. | Use Scenario: Transmitting composite NTSC video over 75Ω coaxial cable in DVD players or set-top boxes. IC Role / Device Role / Timing Role: Single-channel video line driver with 402Ω feedback network and 75Ω source/load termination. Use Value: Delivers 0.05% differential gain and 0.03° phase error-meeting SMPTE RP-168 broadcast compliance without external calibration. |
| Active Bandpass Filter | Pulse Delay Circuit |
Use Scenario: Implementing sixth-order bandpass filter (450kHz–11MHz) with 0.3dB ripple for IF signal conditioning in SDR receivers. IC Role / Device Role / Timing Role: Dual op amp used in cascaded Sallen-Key and double-pole sections; 20Ω isolation resistor prevents capacitive loading instability. Use Value: Maintains flat group delay and <2.0ns pulse fidelity across passband due to 700MHz open-loop bandwidth and low input capacitance. | Use Scenario: Generating precise time-delayed replicas of TTL/CMOS pulses in test equipment or digital timing alignment circuits. IC Role / Device Role / Timing Role: Two-stage all-pass filter using both OPA2652U channels; total delay tGD = 2 × (2RC) with RC = 10ns. Use Value: Provides 40ns group delay with <5% delay variation over 0–85°C and minimal overshoot due to 335V/µs slew rate limiting edge artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual wideband op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2650U | Lower 500MHz unity-gain bandwidth; same SO-8 package and ±5V supply compatibility | Reduced large-signal bandwidth (35MHz vs 50MHz) limits use in >40Msps ADC drivers | Select when cost sensitivity outweighs need for >600MHz small-signal bandwidth |
| AD8056ARZ | Higher 300MHz gain-bandwidth product but only 120mA output current; requires ±5V, not ±6V capable | Lower output drive restricts use in 50Ω video line driving; superior DC accuracy (0.5mV VOS) benefits precision instrumentation | Prefer for low-offset, moderate-bandwidth applications where output current <130mA suffices |
Compared with OPA2652U, OPA2650U trades 200MHz bandwidth for lower cost and power, while AD8056ARZ offers better DC specs but reduced drive strength-making OPA2652U the optimal balance of speed, output capability, and video-grade linearity in ±5V systems.
Availability
OPA2652U is available at Aetrix Electronics and suitable for differential ADC driver, consumer video line driver, and active bandpass filter applications requiring stable component supply across industrial temperature ranges.
Supply support for OPA2652U 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 amp design.
The OPA2652U belongs to TI's OPAx65x family of wideband voltage-feedback op amps, engineered specifically for cost-sensitive, high-speed signal conditioning in video, communications, and data acquisition systems.
FAQ
What is the maximum supply voltage rating for the OPA2652U?
The OPA2652U has an absolute maximum supply voltage rating of ±6.5V, but its specified operating range is ±3V to ±6V. Operation at ±6V is supported with full AC/DC performance including 700MHz unity-gain bandwidth and ±140mA output current. Exceeding ±6V risks permanent damage per TI's Absolute Maximum Ratings table.
Can the OPA2652U drive a 50Ω load effectively?
Yes, the OPA2652U can drive a 50Ω load to ±2.2V with ±140mA output current while remaining within its 1W internal power dissipation limit. The datasheet confirms this capability in the Output Voltage Swing and Output Current specifications under ±5V supply conditions, making it suitable for video line driving and RF signal chain interfacing.
Does the OPA2652U require external compensation for unity-gain stability?
No, the OPA2652U is internally compensated for unity-gain stability. Its voltage-feedback architecture is designed to operate stably with closed-loop gains ≥ +1 without external compensation components. This is verified by the 700MHz small-signal bandwidth and 0dB typical peaking at G = +1 shown in the Electrical Characteristics table.
What is the purpose of the 0.1µF capacitor between +VS and –VS pins on the OPA2652U?
The 0.1µF capacitor between +VS and –VS pins improves second-harmonic distortion performance by 3–6dB in practical PCB layouts. As documented in the Applications Information section, this capacitor stabilizes the internal power rails during fast transient events, reducing inter-rail coupling that contributes to even-order distortion-critical for video and high-fidelity signal paths.
How does the OPA2652U compare to the OPA2652E variant?
The OPA2652U (SO-8) and OPA2652E (SOT23-8) share identical electrical specifications and operating temperature range (–40°C to +85°C), but differ in package thermal performance: OPA2652U has θJA = 125°C/W versus 150°C/W for OPA2652E. This makes OPA2652U preferable for high-output-power applications where board-level heat dissipation is constrained.
OPA2652U Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SpeedPlus™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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 FAQ
1.How can I place an order for OPA2652U through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2652U 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 reliable?
The price and inventory of OPA2652U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2652U is usually 5 days.
3.What payment methods are accepted for OPA2652U?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2652U transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2652U?
OPA2652U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2652U 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?
For technical support, including OPA2652U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2652U requirements.
6.How does Aetrix verify that OPA2652U is sourced from the original manufacturer or authorized distributors?
All OPA2652U 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 meets industry standards.
7.What is the process for return or replacement of OPA2652U?
All OPA2652U units undergo pre-shipment inspection (PSI). If there is an issue with OPA2652U, 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 part is unused and in its original packaging.
Return procedure for OPA2652U:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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