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Product InformationFeatures
All trademarks are the property of their respective owners. Description
The VCA2615 is a dual-channel, variable gain amplifier consisting of a Low-Noise Preamplifier (LNP) and a Variable-Gain Amplifier (VGA). This combination along with the device features makes it well-suited for a variety of ultrasound systems. The LNP offers a high level of flexibility to adapt to a wide range of systems and probes. The LNP gain can be programmed to one of four settings (3dB, 12dB, 18dB, 22dB), while maintaining excellent noise and signal handling characteristics. The input impedance of the LNP can be controlled by selecting one of the built-in feedback resistors. This active termination allows the user to closely match the LNP to a given source impedance, resulting in optimized overall system noise performance. The differential LNP outputs are provided either as buffered outputs for further CW processing, or fed directly into the variable-gain amplifier (VGA). Alternatively, an external signal can be applied to the differential VGA inputs through a programmable switch. Following a linear-in-dB response, the gain of the VGA can be varied over a 52dB range with a 0.2V to 2.5V control voltage common to both channels of the VCA2615. In addition, the overall gain can be switched between a 0dB and +6dB postgain, allowing the user to optimize the output swing of VCA2615 for a variety of high-speed Analog-to-Digital Converters (ADCs). As a means to improve system overload recovery time, the VCA2615 provides an internal clipping function where an externally applied voltage sets the desired clipping level. The VCA2615 operates on a single +5V supply and is available in a small QFN-48 (7×7mm) or TQFP package. |
| Price | Packaging | CAD Design Tools | Samples | |||||
| Device | Status | Temp (oC) | Price | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Samples |
| VCA2615PFBR | ACTIVE | -40 to 85 | 8.05 | 1ku | TQFP (PFB) | 48 | View | 1000 | LARGE T&R | ||
| VCA2615PFBT | ACTIVE | -40 to 85 | 8.90 | 1ku | TQFP (PFB) | 48 | View | 250 | SMALL T&R | Purchase Samples | |
| VCA2615RGZR | ACTIVE | -40 to 85 | 8.05 | 1ku | QFN (RGZ) | 48 | View | 2500 | LARGE T&R | Purchase Samples | |
| VCA2615RGZRG4 | ACTIVE | -40 to 85 | 8.05 | 1ku | QFN (RGZ) | 48 | View | 2500 | LARGE T&R | Purchase Samples | |
| VCA2615RGZT | ACTIVE | -40 to 85 | 8.90 | 1ku | QFN (RGZ) | 48 | View | 250 | SMALL T&R | ||
| VCA2615RGZTG4 | ACTIVE | -40 to 85 | 8.90 | 1ku | QFN (RGZ) | 48 | View | 250 | SMALL T&R | ||
* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.
| TI Inventory Status | Reported Distributor Inventory | |||||
| VCA2615PFBR | As of 8:00 AM GMT, 03 Jul 2009 | As of 8:00 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 8 Weeks | Americas | DigiKey | >1k | |||
| VCA2615PFBT | As of 8:00 AM GMT, 03 Jul 2009 | As of 8:00 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 8 Weeks | Americas | DigiKey | Available | |||
| VCA2615RGZR | As of 8:00 AM GMT, 03 Jul 2009 | As of 8:00 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 8 Weeks | Americas | DigiKey | Available | |||
| VCA2615RGZRG4 | As of 8:00 AM GMT, 03 Jul 2009 | As of 8:00 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 8 Weeks | Americas | DigiKey | Available | |||
| VCA2615RGZT | As of 8:00 AM GMT, 03 Jul 2009 | As of 8:00 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 6 Weeks | Americas | DigiKey | >1k | |||
| Mouser Electronics | 250 | |||||
| Asia | WPI | 126 | ||||
| Europe | Avnet-SILICA | 167 | ||||
| EBV Elektronik | 40 | |||||
| VCA2615RGZTG4 | As of 8:00 AM GMT, 03 Jul 2009 | As of 8:00 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 6 Weeks | Americas | DigiKey | Available | |||
** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.
| Product Content | DPPM / MTBF / FIT Rate | ||||
| Device | Eco Plan* | Lead / Ball Finish | MSL Rating / Peak Reflow | Details | Details |
VCA2615PFBR  | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| VCA2615PFBT | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| VCA2615RGZR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | View | View |
| VCA2615RGZRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | View | View |
| VCA2615RGZT | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | View | View |
| VCA2615RGZTG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | View | View |
* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.
If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.
Most useful technical documents for VCA2615 
| Name | Part # | Company | Tool / Software Type |
| Ultrasound Receive Chain Evaluation Module | TI-TUS5000EVM | Texas Instruments | Development Boards/EVMs |
| VCA2615EVM Evaluation Module | VCA2615EVM | Texas Instruments | Development Boards/EVMs |
| Part # | Name | Product Family | Comments |
| VCA2617 | 2-Channel Variable Gain Amplifier | The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. | |
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