Texas Instruments DAC8218EVM - DAC8218 Evaluation Module DAC8218EVM DAC8218EVM Ficha De Dados
Códigos do produto
DAC8218EVM
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
DAC8218EVM Default Jumper Locations for Bipolar Mode
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3
DAC8218EVM 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
DAC8218EVM Jumpers
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6
DAC8218EVM Bill of Materials
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1
EVM Overview
1.1
Features
DAC8218EVM:
•
Full-featured evaluation board for the DAC8218, a 14-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 DAC8218 is a 14-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 DAC8218EVM 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 DAC8218EVM 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 DAC8218EVM 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
DAC8218EVM
SBAU166A
–
February 2010
–
Revised May 2011
Copyright
©
2010
–
2011, Texas Instruments Incorporated