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Texas Instruments OPA2658E1250
- Part No.:
- OPA2658E1250
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2658E1250.pdf
- Description:
- OPERATIONAL AMPLIFIER, 2 FUNC, 1
- Quantity:
- Payment:
- Shipping:
Inventory:2,250
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Product details
Overview
OPA2658E1250 from Texas Instruments (formerly Burr-Brown) is a dual, ultra-wideband, low-power current feedback operational amplifier optimized for high-resolution video, medical imaging, and high-speed signal processing. It delivers 800MHz unity-gain bandwidth, 1700V/µs slew rate, and <0.01% differential gain / 0.03° differential phase error at NTSC conditions with ±5V supplies.
For engineers reviewing the OPA2658E1250 datasheet, OPA2658E1250 pinout, OPA2658E1250 application, or OPA2658E1250 equivalent, this page provides verified technical context, package-specific performance data, real-world application mappings, and validated alternative options for video amplification, ADC/DAC gain stages, and CCD imaging chains.
Technical Context
The OPA2658E1250 implements a current feedback architecture with low-impedance inverting input (≈50Ω) and high-impedance non-inverting input (500kΩ || 1pF), enabling superior large-signal bandwidth retention across gains. Its open-loop transimpedance is 150–200kΩ, and closed-loop bandwidth varies by gain setting: 800MHz at G = +1, 500MHz at G = +2, and 210MHz at G = +5.
It operates on ±4.5V to ±5.5V supplies, draws ±10–15.5mA per channel (±10–17mA over temperature), and supports rail-to-rail output swing of ±2.2V into 100Ω. The MSOP-8 package (E-grade) has θJA = 150°C/W and is rated for –40°C to +85°C operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 800MHz - enables stable video amplification up to 1080p60 without external compensation |
| Slew Rate | 1700V/µs - supports full-scale 2V step response in ≤15ns (0.01% settling), critical for pulse and transient fidelity |
| Differential Gain/Phase Error | 0.01%/0.03° at NTSC - meets broadcast-grade video linearity requirements without post-correction |
| Input Voltage Noise | 3.2nV/√Hz above 1MHz - preserves SNR in wideband signal chains such as RF IF buffers and DAC reconstruction |
| Quiescent Current | ±10–15.5mA per channel - enables dual-channel high-speed amplification within 50mW/channel power budget |
| Output Drive | ±2.2V into 100Ω - directly drives 75Ω/100Ω video lines, ADC inputs, and coaxial transmission lines without buffer stages |
| Crosstalk | –78dB (input-referred, 5MHz) - ensures channel isolation in dual-path imaging and stereo video systems |
Pinout & Package
OPA2658E1250 is housed in an 8-pin MSOP-8 package (3.0mm × 3.0mm × 1.0mm body, 0.65mm pitch), optimized for high-density PCB layouts and thermal performance in portable and medical imaging equipment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +VS (Channel 1) | Positive supply pin for both amplifiers; requires local 0.1µF + 2.2µF decoupling |
| 2 | –Input 2 | Inverting input (low-Z ≈50Ω); sensitive to parasitic capacitance - place feedback resistor adjacent |
| 3 | +Input 2 | Non-inverting input (high-Z 500kΩ || 1pF); keep trace short and free of ground plane overlap |
| 4 | –VS | Negative supply pin; symmetric layout with +VS required for optimal PSRR (>55dB) |
| 5 | +Input 1 | Non-inverting input for Channel 1; electrically isolated from Channel 2 except via substrate coupling |
| 6 | –Input 1 | Inverting input for Channel 1; shares same low-Z architecture and layout rules as Pin 2 |
| 7 | Output 1 | High-current output (±120mA sourcing, ±80mA sinking); series RISO needed for >5pF capacitive loads |
| 8 | Output 2 | Independent output stage; crosstalk measured at –78dB ensures minimal inter-channel interference |
Key Features
| Feature | Design Value |
|---|---|
| Current Feedback Architecture | Enables flat frequency response up to 800MHz at G = +1 while maintaining >62° phase margin - eliminates gain-bandwidth trade-off typical of voltage-feedback op amps |
| Low Differential Gain/Phase Error | 0.01%/0.03° at NTSC 3.58MHz ensures broadcast-compliant color fidelity in monitor preamplifiers and video distribution systems |
| High Output Drive into 100Ω | Delivers ±2.2V into 100Ω load without clipping - eliminates need for external buffer stages in CCD imaging and ADC gain amplifier applications |
| MSOP-8 Thermal Performance | θJA = 150°C/W allows continuous dual-channel operation at +85°C ambient without heatsinking in space-constrained medical enclosures |
| Input-Referred Crosstalk | –78dB at 5MHz guarantees independent channel operation in dual-path ultrasound beamforming and stereo video processing |
Applications
| Medical Imaging | High-Resolution Video |
|---|---|
Use Scenario: Amplifying analog outputs from CT/MRI detector arrays before digitization. IC Role / Device Role / Timing Role: Dual-channel gain amplifier with matched DC offset and AC response for differential signal conditioning. Use Value: 0.01% differential gain error preserves contrast resolution across 16-bit dynamic range; 800MHz bandwidth supports multi-line parallel readout. |
Use Scenario: Driving RGB signals in 4K/UHD broadcast monitors with minimal group delay distortion. IC Role / Device Role / Timing Role: Monitor preamplifier with back-terminated 75Ω output interface. Use Value: 0.03° differential phase error prevents hue shift between luminance/chrominance paths; 1700V/µs slew rate avoids edge ringing on 100MHz pixel clocks. |
| ADC/DAC Gain Amplifier | CCD Imaging Amplifier |
Use Scenario: Buffering and scaling DAC output prior to RF upconversion in software-defined radio transceivers. IC Role / Device Role / Timing Role: Wideband gain stage with low output impedance (<0.06Ω) for driving flash ADC sample-and-hold inputs. Use Value: 3.2nV/√Hz input noise minimizes added quantization uncertainty; 100Ω drive capability matches typical ADC input termination. |
Use Scenario: Pixel-level signal amplification in scientific CCD cameras used for astronomy and microscopy. IC Role / Device Role / Timing Role: Low-noise, low-distortion charge-to-voltage converter with precise DC offset control. Use Value: ±3mV input offset voltage and <45µVrms integrated noise (100Hz–200MHz) preserve sub-electron read noise performance in cooled sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual wideband current feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6702MA/NOPB | Higher power (125mW/channel), wider bandwidth (1.8GHz), but higher differential gain error (0.03%) and no MSOP-8 option | Better suited for RF IF gain stages requiring >1GHz small-signal BW; less optimal for NTSC/PAL video due to higher dG | Select LMH6702MA/NOPB when bandwidth >1GHz is mandatory and video linearity is secondary |
| THS3202D | Lower power (32mW/channel), lower slew rate (3000V/µs), but only available in SO-8; differential phase error unspecified | Preferred for battery-powered portable imaging where quiescent current is critical; lacks published dG/dP for broadcast compliance | Choose THS3202D for ultra-low-power dual-channel amplification where video standard compliance is not required |
Compared with OPA2658E1250, LMH6702MA/NOPB trades video linearity for raw bandwidth and power, while THS3202D prioritizes efficiency over documented broadcast-grade performance - making OPA2658E1250 the only option among the three with verified 0.01%/0.03° NTSC compliance in MSOP-8.
Availability
OPA2658E1250 is available at Aetrix Electronics and suitable for medical imaging systems, broadcast video infrastructure, and high-speed data acquisition requiring stable component supply, long-term lifecycle support, and guaranteed MSOP-8 packaging consistency.
Supply support for OPA2658E1250 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 acquired Burr-Brown in 2000 and maintains full legacy support for precision high-speed analog products. TI is a global leader in analog IC design with decades of expertise in video, medical, and instrumentation signal chains.
The OPA2658E1250 belongs to TI's OPAxx658 family of current feedback op amps, engineered specifically for broadcast video, medical imaging, and high-fidelity data conversion applications demanding simultaneous wide bandwidth, low distortion, and low power.
FAQ
What is the maximum closed-loop bandwidth of OPA2658E1250 at G = +1?
The OPA2658E1250 achieves 800MHz closed-loop bandwidth at G = +1 with ±5V supplies and 402Ω feedback resistor (SO-8/MSOP-8). Measured bandwidth drops to 600MHz in MSOP-8 configuration with 560Ω feedback, as confirmed in Typical Performance Curves. This bandwidth supports full HD video signal integrity without peaking or phase distortion.
Does OPA2658E1250 support single-supply operation?
Yes, OPA2658E1250 supports single-supply operation provided common-mode input and output headroom constraints are met: input range is ±2.9V and output swing reaches ±2.2V into 100Ω. For 5V single supply, bias the non-inverting input at VCC/2 using precision resistors and AC-couple the signal to maintain DC stability and avoid clipping.
What is the recommended feedback resistor for OPA2658E1250 in MSOP-8 package?
The recommended feedback resistor for OPA2658E1250 in MSOP-8 is 560Ω for unity-gain buffer configurations and 402Ω for G = +2 applications. Using 402Ω in MSOP-8 yields 600MHz bandwidth; reducing it extends bandwidth at higher gains but risks reduced phase margin. Layout parasitics must be minimized to maintain specified performance.
How does OPA2658E1250 handle capacitive loads?
OPA2658E1250 requires series isolation resistance (RISO = 10–35Ω) when driving capacitive loads >5pF, such as flash ADC inputs or long PCB traces. This isolates the output stage from reactive loading and prevents peaking or oscillation. The device is internally compensated for 2pF parasitic capacitance, making RISO essential for stability beyond that threshold.
Is OPA2658E1250 pin-compatible with other variants like OPA2658U or OPA2658P?
No, OPA2658E1250 is not pin-compatible with OPA2658U (SO-8) or OPA2658P (DIP) despite identical pin numbering - MSOP-8 has 0.65mm pitch versus 1.27mm for SO-8 and 2.54mm for DIP. PCB layout, thermal vias, and decoupling must be redesigned for MSOP-8; footprint conversion requires mechanical redesign, not just land pattern adjustment.
OPA2658E1250 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 1700V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- -
- Current - Input Bias:
- 30 µA
- Voltage - Input Offset:
- -
- Current - Supply:
- 10mA (x2 Channels)
- Current - Output / Channel:
- 120 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
OPA2658E1250 FAQ
1.How can I place an order for OPA2658E1250 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2658E1250 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 OPA2658E1250 reliable?
The price and inventory of OPA2658E1250 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2658E1250 is usually 5 days.
3.What payment methods are accepted for OPA2658E1250?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2658E1250 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2658E1250?
OPA2658E1250 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2658E1250 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 OPA2658E1250?
For technical support, including OPA2658E1250 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2658E1250 requirements.
6.How does Aetrix verify that OPA2658E1250 is sourced from the original manufacturer or authorized distributors?
All OPA2658E1250 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 OPA2658E1250 meets industry standards.
7.What is the process for return or replacement of OPA2658E1250?
All OPA2658E1250 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2658E1250, 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 OPA2658E1250 part is unused and in its original packaging.
Return procedure for OPA2658E1250:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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