| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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2,147 pcs
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2147 pcs | On Request | 1 | On Request | On Request | 07+ | On Request | On Request |
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The VCA8613YT from Texas Instruments is an 8-channel variable gain amplifier (VGA) specifically designed for portable ultrasound systems. Each channel integrates a low-noise pre-amplifier (LNA) and a variable gain amplifier (VGA). The LNA offers low input noise density of 1.2nV/√Hz at 5MHz, making it suitable for sensitive signal acquisition.
The VGA stage consists of a Voltage Controlled Attenuator (VCA) and a Programmable Gain Amplifier (PGA). The PGA gain can be digitally configured to discrete settings of 21dB or 26dB. The VCA provides programmable maximum attenuation settings of 29dB, 33dB, 36.5dB, and 40dB, or continuous attenuation from 0dB up to these maximums via a control voltage.
This device features an integrated 2-pole, low-pass filter with a 14MHz bandwidth, allowing direct connection to differential input Analog-to-Digital Converters (ADCs). The VCA8613YT operates with a supply voltage range of 2.85V to 3.15V and has a typical power consumption of 75mW per channel at 3V. It is available in a 64-TQFP package and is designed for surface mounting.
Applications for the VCA8613YT include medical and industrial ultrasound systems. Its excellent dynamic performance and low power operation make it ideal for high-performance portable applications.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.92 | $1.92 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input noise density is 1.2nV/√Hz at 5MHz.
The bandwidth is 14MHz.
The typical power consumption is 75mW/channel at 3V.
The operating temperature range is -40°C to 85°C.
The VCA8613YT is available in a 64-TQFP package.
The supply voltage range is 2.85V to 3.15V.