Texas Instruments DAC8718 Evaluation Module DAC8718EVM DAC8718EVM Datenbogen
Produktcode
DAC8718EVM
EVM Overview
Contents
1
EVM Overview
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2
Analog Interface
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3
Digital Interface
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4
Power Supplies
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5
Voltage Reference
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6
EVM Operation
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7
Schematics and Layout
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List of Figures
1
Reference Test Points
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2
DAC8718EVM Default Jumper Locations for Bipolar Mode
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3
DAC8718EVM Default Jumper Locations for Unipolar Mode
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List of Tables
1
J1: Analog Interface Pinout
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2
J4: Analog AIN Interface Pinout
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3
J2: Serial Interface Pins
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4
J3 Configuration: Power-Supply Input
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5
DAC8718EVM Jumpers
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6
DAC8718EVM Bill of Materials
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1
EVM Overview
1.1
Features
DAC8718EVM:
•
Full-featured evaluation board for the DAC8718, a 16-bit, serial input, octal output digital-to-analog
converter
converter
•
Onboard or external reference selection
•
Configurable for single- or dual-supply operation
•
Wide selection of digital and I/O voltages
•
Hardware or software control of control logic
1.2
Introduction
The DAC8718 is a 16-bit, low-power, octal DAC that operates from independent AV
DD
, AV
SS
, and DV
DD
supplies. It uses a high-speed serial peripheral interface, or SPI
™
(up to 50MHz), to communicate with a
DSP or a microprocessor using a compatible serial interface.
The DAC control logic can be controlled using onboard jumpers, or digitally through the J2 header.
The DAC8718EVM is designed for unipolar and bipolar (default) modes of operation. This flexibility allows
for a wide range of supply voltages. Unipolar operation requires only a single analog voltage supply and
bipolar operation requires two analog supplies.
for a wide range of supply voltages. Unipolar operation requires only a single analog voltage supply and
bipolar operation requires two analog supplies.
The DAC8718EVM is an evaluation module built to the TI Modular EVM System specification. It can be
connected to any modular EVM system interface card. The EVM ships in the TQFP-64 pin package.
connected to any modular EVM system interface card. The EVM ships in the TQFP-64 pin package.
Note that the DAC8718EVM has no microprocessor and cannot run software. To connect it to a computer,
some type of interface is required.
some type of interface is required.
2
DAC8718EVM
SBAU158A
–
February 2010
–
Revised May 2011
Copyright
©
2010
–
2011, Texas Instruments Incorporated