|
|
Partname: | VCA8500 |
Description: | 8-Channel, Ultralow-Power, Variable Gain Amplifier with Low-Noise Pre-Amp |
Manufacturer: | Texas Instruments |
Datasheet: | PDF (991K). Click here to download *) |
The VCA8500 is an 8-channel variable gain amplifier consisting of a low-noise pre-amplifier (LNP) and a variable-gain amplifier (VGA). This combination, along with the device features, makes it ideal for a variety of ultrasound systems. The LNP gain is fixed at 20dB, and has excellent noise and signal handling characteristics. The gain of the voltage-controlled attenuator can vary over a 46dB range with a 0V to 1.2V control voltage common to all channels of the VCA8500. The post-gain amplifier (PGA) can be programmed for four gain settings: 20dB, 25dB, 27dB, or 30dB gain. As a means to improve system overload recovery time, the VCA8500 provides an internal clamping function. The PGA settings as well the clamp levels are controlled through the serial interface. |
|
*)Datasheets downloading from ChipDocs is only for our members (paid service). REGISTER NOW for your membership. |
|
|
|