MR-MINI-12BIT-DAC Gravitech, MR-MINI-12BIT-DAC Datasheet - Page 2

• Manufacturer Part Number: MR-MINI-12BIT-DAC
• Description: Data Conversion IC Development Tools MINI 12-BIT DIGITAL-ANALOG CONV
• Manufacturer: Gravitech
• Type: DACr

Specifications of MR-MINI-12BIT-DAC

• Rohs: yes
• Product: Development Boards
• Tool Is For Evaluation Of: MCP4922
• Interface Type: SPI
• Operating Supply Voltage: 2.7 V to 5.5 V
• Description/function: Mini 12-bit digital-to-analog converter
• Dimensions: 2.2 in x 1.7 in

MR-MINI-12BIT-DAC
The MR-MINI-12BIT-DAC is a dual channel
12-Bit Digital-to-Analog Converters with
optional 2x buffered output and SPI
interface. There are no external components
required. This makes it perfect for embedded
systems that require digital-to-analog
converter.
This board features innovations that set it
apart from other digital-to-analog converter
module. Innovations feature like on-board
variable
voltages, enable/disable jumpers, pull-up
resistors, output terminal block and power
LED. The module can be quickly connected
discrete wires or header pins. The board is
small and compact in size 2.20 x 1.70
inches.
The MR-MINI-12BIT-DAC is designed base
on MCP4922 IC. They are DACs that
provide high accuracy and low noise
performance for industrial applications where
calibration or compensation of signal (such
as temperature, pressure and humidity) is
required.
The devices utilize resistive string
architecture, with its inherent advantages of
low DNL error, low ratio metric temperature
coefficient and fast settling time. These
devices are specified over the extended
temperature range. Also, include double
buffered inputs, allowing simultaneous
updates using the LDAC pin. These devices
also incorporate a Power-On Reset (POR)
circuit to ensure reliable power-up.
Please take a look at MCP4922 datasheet
for more detail.
resistors
Description
Copyright © 2007 MicroResearch
GRAVITECH GROUP
for
setup
TM
Mini 12-BIT Digital-to-Analog Converter
reference
User Manual
WWW.GRAVITECH.US
• 12-Bit resolution
• Dual channel output and selectable
• Rail-to-rail output
• Fast settling time of 4.5uS
• Reference voltages VrefA and VrefB
• 2.7V to 5.5V single-supply operation
• SPI
• Small and compact in size
• Four mounting holes on each corner
• Female and male header connector.
FIG 1: MCP4922 block diagram
output gain 1x or 2x
can be adjust from 0 to VCC via on-
board potentiometer
support
TM
interface with 20MHz clock
Features