Datasheet

3.4 OPA695 and THS3091/5
4 Software Installation
4.1 DAC5682Z USB Control Software Installation
www.ti.com Software Installation
These both provide the differential-to-single-ended conversion for the DAC5682Z output. The OPA695 is a
wide bandwidth (1400 MHz) high-performance operational amplifier (see data sheet SBOS693 ). The
THS3095 is high-performance operational amplifier capable of driving large voltages (20+ Volts). Data
sheet SLOS423 provides more information about the THS3091/5 device.
Both DAC outputs have optional transformer outputs to bypass the operational amplifiers, if needed. There
are also options to bypass the onboard supplies to use higher external operational amplifier supplies.
The amplifier circuits can be further optimized by following the guidelines in the application report
SBAA135 . This optimization can be performed once the final filter and gain components have been
selected.
The enclosed CD-ROM contains all of the necessary software that is needed for the host personal
computer (PC) to control the DAC5682Z and CDCM7005 on the TSW3070EVM. The interface software is
a graphical user interface (GUI) that allows all the registers to be programmed in the CDCM7005 and the
DAC5682Z. Once the software is installed, the GUI is accessible from the Start → All Programs → Texas
Instruments DACs → DAC5682z EVM Control. This GUI was originally used for the TSW3082
(DAC5682+RF modulator) but is also applicable for the TSW3070EVM.
Copy the DAC5682z software from the provide CD to a local drive on a PC. Execute the setup.exe file.
This starts the DAC5682Z control software installation.
The destination directory for the installer is displayed. It is recommended to leave the default folder
location. Any necessary folders are created by the installation if they do not exist. Click Next
SLWU055 – May 2008 TSW3070EVM: Amplifier Interface to Current Sink DAC - Arbitrary Waveform Generator Demonstration 5
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