Texas Instruments DAC7741EVM - Manuals

Page 5 - Preface; Read This First; About This Manual; Information About Cautions and Warnings; This is an example of a caution statement.

Information About Cautions and Warnings iii Preface Read This First About This Manual This user’s guide describes the characteristics, operation, and the use of theDA7741 evaluation module. It covers all pertinent areas involved to properlyuse this EVM board along with the devices that it supports. ...

Page 6 - Related Documentation From Texas Instruments; FCC Warning

Trademarks iv Related Documentation From Texas Instruments To obtain a copy of any of the following TI documents, call the Texas Instru-ments Literature Response Center at (800) 477 – 8924 or the Product Informa-tion Center (PIC) at (972) 644 – 5580. When ordering, identify this manual byits title a...

Page 7 - Contents; EVM Overview; Figures

Contents v Contents 1 EVM Overview 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Features 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 8 - Tables

Contents vi Tables 2-1 Parts List 2-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Factory Default Jumper Setting 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 9 - Topic; Chapter 1

1-1 EVM Overview EVM Overview This chapter gives a general overview of the DAC7741 evaluation module(EVM), and describes some of the factors that must be considered in using thismodule. Topic Page 1.1 Features 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 10 - Supply Voltage; Reference Voltage

Features 1-2 1.1 Features This EVM features the DAC7741 digital-to-analog converter. The DAC7741EVM is a simple evaluation module designed for a quick and easy way toevaluate the functionality of the high resolution, single-channel, and parallelinput DAC. This EVM features a parallel interface to co...

Page 11 - EVM Basic Functions

EVM Basic Functions 1-3 EVM Overview The REF102 precision reference derives its power of ± 15-V supply through J10 or J7 terminal. The (plus) 15 V connects through J10-1 or J7-2 terminals,while the (minus) -15 V connects through J10-3 or J7-4 terminals. They areboth referenced to analog ground throu...

Page 13 - Physical Description; Chapter 2

2-1 Physical Description Physical Description This chapter describes the physical characteristics and PCB layout of the EVMand lists the components used on the module. Topic Page 2.1 PCB Layout 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2....

Page 19 - Bill of Materials

Bill of Materials 2-7 Physical Description 2.2 Bill of Materials Table 2-1. Parts List Item # Qty Designator Manufacturer Part Number Description 1 1 C8 Panasonic ECJ3VB1C105K 1 µ F, 1206 multilayer ceramic capacitor 2 2 C9 C10 Panasonic ECUV1H103KBM 0.01 µ F, 1206 multilayer ceramic capacitor 3 5 C...

Page 21 - EVM Operation; Chapter 3

3-1 EVM Operation EVM Operation This chapter covers in detail the operation of the EVM to provide guidance tothe user in evaluating the onboard DAC and how to interface the EVM to aspecific host processor. Refer to the DAC7741 data sheet, SBAS248, for information about its parallelinterface and othe...

Page 22 - Table 3-1. Factory Default Jumper Setting

Factory Default Setting 3-2 3.1 Factory Default Setting The EVM board is set to its default configuration from factory as described onthe table below to operate in bipolar ± 10V mode of operation using the internal reference. Table 3-1. Factory Default Jumper Setting Reference Jumper Position Functi...

Page 23 - Host Processor Operation; Unity Gain Output; Table 3-2. Unity Gain Output Jumper Settings

Host Processor Operation 3-3 EVM Operation 3.2 Host Processor Operation The host processor basically drives the DAC, so the DACs proper operationdepends on the successful configuration between the host processor and theEVM board. In addition, a properly written code is also required to operate theDA...

Page 24 - Output Gain of Two; Table 3-3. Gain of Two Output Jumper Settings; Capacitive Load Drive; Table 3-4. Capacitive Load Drive Output Jumper Settings

Host Processor Operation 3-4 3.2.2 Output Gain of Two This configuration allows the DAC output with a gain of two, but is limited tothe effective rails of the operational amplifier. When the DAC7741 isconfigured to operate in bipolar mode, the DAC output must be within therange of 12 V P- P or less....

Page 27 - Schematic

Schematic 3-7 EVM Operation 3.4 Schematic A schematic of the DAC7741 is found on the following page.

Page 28 - ti

1 2 3 4 5 6 A B C D 6 5 4 3 2 1 D C B A ti 12500 TI Boulevard. Dallas, Texas 75243 Title: SHEET: OF: FILE: SIZE: DATE: REV: 27-Sep-2002 Drawn By: Engineer: Revision History REV ECN Number Approved DAC7741.Sch DOCUMENTCONTROL # C1 0.1µF C7 0.1µF C2 0.1µF D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 ...