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Texas Instruments OPA2652UG4
- Part No.:
- OPA2652UG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2652UG4.pdf
- Description:
- IC VOLTAGE FEEDBACK 2 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,356
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Product details
Overview
OPA2652UG4 from Texas Instruments is a dual, wideband voltage-feedback operational amplifier optimized for high-speed signal conditioning in ±5V systems. It delivers 700MHz unity-gain bandwidth, 335V/µs slew rate, and 140mA output current per channel, with 1.5mV input offset voltage and ±6V maximum supply range. It serves as a differential ADC driver (e.g., ADS807), video line driver, and active filter building block in precision analog front-ends.
For engineers reviewing the OPA2652UG4 datasheet, OPA2652UG4 pinout, OPA2652UG4 application, or OPA2652UG4 equivalent, this page provides verified electrical parameters, SO-8 package mapping, real-world use cases in ADC driving and composite video, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The OPA2652UG4 uses classical voltage-feedback architecture with fully differential, symmetrical inputs-enabling low DC error and high common-mode rejection (95dB min). Its internal unity-gain compensation ensures stability at G = +1 while delivering 700MHz small-signal bandwidth and 50MHz 0.1dB flatness.
It supports both bipolar (±3V to ±6V) and single-supply operation (up to +12V), with rail-to-rail output swing limited by load: ±2.5V into 100Ω and ±3.0V into 1kΩ. Input bias current is 4–25µA max, and closed-loop output impedance remains below 0.06Ω below 100kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth (G = +1) | 700MHz - enables direct buffering of >300MHz baseband signals without gain peaking |
| Slew Rate | 335V/µs - supports clean reproduction of fast-edged pulses up to ~10ns rise time |
| Output Current (sourcing/sinking) | 140mA per channel - drives 50Ω loads at ±2.2V or 100Ω at ±2.5V within safe operating area |
| Input Offset Voltage | ±1.5mV max - maintains <0.03% gain error in 50V full-scale differential ADC interfaces |
| Supply Voltage Range | ±3V to ±6V - compatible with standard ±5V data acquisition rails and industrial ±3.3V/±5V systems |
| Differential Gain/Phase Error | 0.05%/0.03° (NTSC) - meets broadcast-grade video line driver requirements |
| Gain Bandwidth Product | 200MHz - defines usable bandwidth vs. closed-loop gain (e.g., 45MHz at G = +5) |
Pinout & Package
OPA2652UG4 is packaged in an SO-8 (D package) surface-mount outline with exposed pad thermal enhancement. Pin 1 is marked via laser top-side indentation; device orientation follows JEDEC MS-012 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (+VS) | Positive supply rail | Accepts +3V to +6V; requires 0.1µF decoupling to –VS pin and local ground |
| 2 (Out B) | Channel B output | Capable of sourcing/sinking 140mA; must be isolated with series resistor when driving >2pF capacitive loads |
| 3 (–In B) | Inverting input B | DC-coupled node; bias current cancellation requires matched resistance to +In B (e.g., 205Ω to ground) |
| 4 (+In B) | Non-inverting input B | Differential pair input; common-mode range extends to ±4.0V at TA = +25°C |
| 5 (Out A) | Channel A output | Electrically identical to Out B; independent output stage with shared supply pins |
| 6 (–In A) | Inverting input A | Used in inverting configurations; gain set by RF/RG ratio; noise gain includes source impedance |
| 7 (+In A) | Non-inverting input A | High-impedance input (18MΩ||1pF); referenced to system common-mode voltage |
| 8 (–VS) | Negative supply rail | Accepts –3V to –6V; 0.1µF capacitor between +VS and –VS improves 2nd-harmonic distortion by 3–6dB |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable voltage feedback | Enables direct G = +1 buffer configuration without external compensation, achieving 0dB peaking and 700MHz bandwidth |
| Low input offset drift | ±5µV/°C max ensures <±0.35mV total offset shift across –40°C to +85°C industrial temperature range |
| High channel isolation | –100dBc crosstalk at 5MHz allows simultaneous processing of independent high-frequency signals on same die |
| Optimized for ADC driving | Combines 50MHz 0.1dB flatness and 66dB SFDR at 5MHz to meet ENOB >10.5 bits for 12-bit ADCs like ADS807 |
| Ultra-low dG/dφ | 0.05%/0.03° NTSC performance supports studio-grade composite video transmission without external calibration |
Applications
| Differential ADC Driver | Composite Video Line Driver |
|---|---|
Use Scenario: Driving the differential inputs of the ADS807 12-bit, 53MHz sampling ADC in high-speed data acquisition systems. IC Role / Device Role / Timing Role: Dual-channel wideband amplifier configured as gain-of-two differential driver with AC-coupled outputs to match ADC input common-mode range. Use Value: Enables full utilization of ADS807's 53MHz bandwidth while maintaining <0.05% differential gain error and preserving SNR through low 8nV/√Hz input voltage noise. | Use Scenario: Transmitting NTSC/PAL composite video signals over 75Ω coaxial cable in broadcast equipment and consumer set-top boxes. IC Role / Device Role / Timing Role: Single-channel noninverting line driver with 75Ω output termination and precise DC restoration via clamping diodes. Use Value: Delivers broadcast-compliant 0.05%/0.03° dG/dφ performance at 4.43MHz color subcarrier, eliminating need for external phase correction circuitry. |
| Active Bandpass Filter | Pulse Delay Circuit |
Use Scenario: Implementing a sixth-order bandpass filter (450kHz–11MHz passband) 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 with 1% resistors and 5% capacitors. Use Value: Achieves 0.3dB passband ripple and –23dB stopband rejection using only one OPA2652UG4, reducing component count versus discrete solutions. | Use Scenario: Generating precise, temperature-stable time delays (e.g., 2 × 2RC = 40ns) in high-speed test instrumentation and timing alignment circuits. IC Role / Device Role / Timing Role: Two-stage active all-pass filter where each OPA2652UG4 channel contributes one pole with unity gain and linear phase response. Use Value: Provides group delay flatness within ±0.5ns over 10MHz bandwidth, critical for skew-matched signal paths in multi-channel digitizers. |
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 G=+1 bandwidth; 220V/µs slew rate; same SO-8 package and pinout | Insufficient for >400MHz ADC front-ends or NTSC video; suitable for cost-sensitive 100–200MHz filter designs | Select when bandwidth headroom <300MHz is acceptable and quiescent current <4.5mA/ch is required |
| OPA2680U | Higher 1.5GHz G=+1 bandwidth; 1000V/µs slew rate; ±12V supply capable; SO-8 package | Overqualified for ±5V systems; higher power (12mA/ch) and cost; requires tighter layout for stability | Select only when >1GHz small-signal bandwidth or >±6V supplies are mandatory |
Compared with OPA2652UG4, OPA2650U trades 350MHz bandwidth for lower power and cost, while OPA2680U delivers 1.5GHz bandwidth at doubled supply range and current-making OPA2652UG4 the optimal balance for ±5V, 500MHz-class ADC drivers and video line stages.
Availability
OPA2652UG4 is available at Aetrix Electronics and suitable for high-speed data acquisition, broadcast video infrastructure, and RF receiver front-end designs requiring stable component supply across extended temperature ranges.
Supply support for OPA2652UG4 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 converter interface solutions.
The OPA2652UG4 belongs to TI's OPAx65x family of wideband voltage-feedback amplifiers, designed specifically for cost-sensitive, high-fidelity signal conditioning in ADC driving, video, and communications infrastructure.
FAQ
What is the maximum capacitive load the OPA2652UG4 can drive without external isolation?
The OPA2652UG4 begins exhibiting frequency response degradation with parasitic capacitive loads exceeding 2pF. For stable operation into >10pF loads (e.g., long PCB traces or multiple IC inputs), a series isolation resistor (RS) must be placed directly at the output pin. Recommended RS values range from 5Ω for 10pF to 47Ω for 100pF, per TI's Figure 17. Without this resistor, phase margin erosion may cause peaking or oscillation. The OPA2652UG4 itself does not include internal isolation.
Does the OPA2652UG4 support single-supply operation, and what is the minimum recommended supply voltage?
Yes, the OPA2652UG4 supports single-supply operation from +6V to +12V, with full 140mA output current capability at +12V. However, its specified operating range starts at ±3V (i.e., ±3V = 6V total), and it is not characterized for operation below +6V single-ended. At +6V, output swing is reduced to ±2.0V into 100Ω. For reliable performance matching the datasheet specifications, ±5V (10V total) is the recommended minimum dual-supply configuration for OPA2652UG4.
How does the OPA2652UG4 achieve low differential gain and phase error in video applications?
The OPA2652UG4 achieves 0.05%/0.03° NTSC dG/dφ through precision trimming of input transistor pairs and symmetrical voltage-feedback architecture that minimizes even-order harmonic distortion. Its 700MHz bandwidth ensures flat gain response across the 4.43MHz color subcarrier and luminance sidebands, while low 8nV/√Hz input voltage noise prevents SNR degradation. These characteristics are measured under RL = 150Ω load per TI SBOS125A, confirming suitability for broadcast video line driving without external correction networks.
Can the OPA2652UG4 be used in inverting configurations with 50Ω source matching, and what resistor values are recommended?
Yes, the OPA2652UG4 supports inverting configurations with 50Ω source matching. To maintain bandwidth and minimize distortion, set RG = 50Ω (input termination), RF = 50Ω (gain-of–1), and add RM = 57.6Ω from +In to ground to cancel input bias current errors. This yields a noise gain of ~1.94 and preserves >200MHz bandwidth. Feedback network impedance (RF || RG) should remain <300Ω to avoid parasitic-induced poles; values outside 200Ω–1.5kΩ degrade harmonic distortion or bandwidth. All resistors must be placed close to the device pins.
What thermal considerations apply to the OPA2652UG4 in continuous high-output-current operation?
The OPA2652UG4 has a thermal resistance θJA of 125°C/W in SO-8 (U) package. At maximum 140mA output into 50Ω with ±5V supplies, power dissipation per channel reaches ~350mW, raising junction temperature by ~44°C above ambient. To stay within the +175°C absolute max junction rating, ambient must remain ≤+130°C-impractical in most designs. Derating is required: sustained 140mA operation demands heatsinking, airflow, or reduced duty cycle. The 1W internal power limit (500mW/channel) defines the safe operating area boundary shown in Figure 22.
OPA2652UG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SpeedPlus™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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
OPA2652UG4 FAQ
1.How can I place an order for OPA2652UG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2652UG4 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 OPA2652UG4 reliable?
The price and inventory of OPA2652UG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2652UG4 is usually 5 days.
3.What payment methods are accepted for OPA2652UG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2652UG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2652UG4?
OPA2652UG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2652UG4 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 OPA2652UG4?
For technical support, including OPA2652UG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2652UG4 requirements.
6.How does Aetrix verify that OPA2652UG4 is sourced from the original manufacturer or authorized distributors?
All OPA2652UG4 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 OPA2652UG4 meets industry standards.
7.What is the process for return or replacement of OPA2652UG4?
All OPA2652UG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2652UG4, 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 OPA2652UG4 part is unused and in its original packaging.
Return procedure for OPA2652UG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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