TIDA-00075

Wide-Bandwidth and High-Voltage Arbitrary Waveform Generator Front End

TIDA-00075

Design files

Overview

This design shows how to use an active interface with the current sink output of the DAC5682Z - typical applications for this include front ends for arbitrary waveform generators. The EVM includes the DAC5682Z for digital-to-analog conversion, an OPA695 to demonstrate an active interface implementation using a wide bandwidth operational amplifier and a THS3091 and THS3095 to showcase an operational amplifier with large voltage swing. Also included on board are a CDCM7005, VCXO and Reference for clock generation, and linear regulators for voltage regulation. Communication to the EVM is accomplished via a USB interface and GUI software.

Features
  1. Example of a high performance arbitrary waveform generator front end
  2. Wideband signal generation using DAC5682z
  3. Provide 1 wideband high performance output capable of driving 50 ohm loads using OPA695
  4. Provide a high voltage output using the THS3095 with a maximum of 30Vpp
  5. Easy evaluation platform using TSW1400 and HSDC Pro pattern generator software

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU129.PDF (1360 K)

Reference design overview and verified performance test data

TIDR608.PDF (180 K)

Detailed schematic diagram for design layout and components

TIDR609.PDF (57 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDR610.ZIP (3997 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

TPS54305.5V to 36V Input, 3A, 500kHz Step-Down Converter

Data sheet document-pdfAcrobat PDF open-in-new HTML
Clock jitter cleaners & synchronizers

CDCM7005High performance, low phase noise, low skew clock synchronizer that synchronizes ref clock to VCXO

Data sheet document-pdfAcrobat PDF open-in-new HTML
High-speed DACs (>10MSPS)

DAC5682ZDual-Channel, 16-Bit, 1.0-GSPS, 1x-4x Interpolating Digital-to-Analog Converter (DAC)

Data sheet document-pdfAcrobat PDF open-in-new HTML
High-speed op amps (GBW>=50MHz)

OPA695Ultra-Wideband, Current-Feedback Operational Amplifier with Disable

Data sheet document-pdfAcrobat PDF open-in-new HTML
High-speed op amps (GBW>=50MHz)

THS3091Single- High-Voltage, Low Distortion, Current-Feedback Operational Amplifier

Data sheet document-pdfAcrobat PDF open-in-new HTML
High-speed op amps (GBW>=50MHz)

THS3095Single- High-Voltage, Low Distortion, Current-Feedback Operational Amplifier with Power-down

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TPS7671-A, 10-V, low-dropout voltage regulator with enable & RESET with delay

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

UCC284500-mA, negative, adjustable low-dropout voltage regulator from -40°C to +85°C

Data sheet document-pdfAcrobat PDF

Technical documentation

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Type Title Date
Design guide Wide-Bandwidth and High-Voltage Arbitrary Waveform Generator Front End Sep. 03, 2013

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