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National Semiconductor - 10-Bit Micro Power DUAL Digital-to-Analog Converter with Rail-to-Rail Output

Numéro de référence DAC102S085
Description 10-Bit Micro Power DUAL Digital-to-Analog Converter with Rail-to-Rail Output
Fabricant National Semiconductor 
Logo National Semiconductor 





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DAC102S085 fiche technique
www.DataSheet4U.com
June 2006
DAC102S085
10-Bit Micro Power DUAL Digital-to-Analog Converter
with Rail-to-Rail Output
General Description
Features
The DAC102S085 is a full-featured, general purpose DUAL n Guaranteed Monotonicity
10-bit voltage-output digital-to-analog converter (DAC) that n Low Power Operation
can operate from a single +2.7V to 5.5V supply and uses
210 µA at 3V and 320 µA at 5V. The DAC102S085 is
packaged in a 10-lead MSOP package. The on-chip output
amplifier allows rail-to-rail output swing and the three wire
serial interface operates at clock rates up to 40 MHz over the
entire supply voltage range. Competitive devices are limited
n Rail-to-Rail Voltage Output
n Power-on Reset to 0V
n Simultaneous Output Updating
n Wide power supply range (+2.7V to +5.5V)
n Power Down Modes
to 25 MHz clock rates at supply voltages in the 2.7V to 3.6V
range. The serial interface is compatible with standard
Key Specifications
SPI, QSPI, MICROWIRE and DSP interfaces.
n Resolution
10 bits
The reference for the DAC102S085 serves both channels n INL
±2 LSB (max)
and can vary in voltage between 1V and VA, providing the
widest possible output dynamic range. The DAC102S085
has a 16-bit input shift register that controls the outputs to be
updated, the mode of operation, the powerdown condition,
and the binary input data. Both outputs can be updated
simultaneously or individually depending on the setting of
the two mode of operation bits.
A power-on reset circuit ensures that the DAC output powers
n DNL
n Settling Time
n Zero Code Error
n Full-Scale Error
n Supply Current
— Normal
— Pwr Down
+0.35 / −0.25 LSB (max)
6 µs (max)
+15 mV (max)
−0.75 %FS (max)
270 µA (3.6V) / 410 µA (5.5V) max
20 nA (3.6V) / 30 nA (5.5V) typ
up
to
to zero volts and remains there until there is
the device. A power-down feature reduces
apovwaDleidrawctaoriSnte-heeAt4pU.pcolimcations
sumption to less than a microWatt with three different termi- n Battery-Powered Instruments
nation options.
n Digital Gain and Offset Adjustment
The low power consumption and small packages of the n Programmable Voltage & Current Sources
DAC102S085 make it an excellent choice for use in battery n Programmable Attenuators
operated equipment.
The DAC102S085 is one of a family of pin compatible DACs,
including the 8-bit DAC084S085 and the 12-bit
DAC122S085. The DAC102S085 operates over the ex-
tended industrial temperature range of −40˚C to +105˚C.
Pin Configuration
DataShee
20195502
DataSheet4U.coSmPIis a trademark of Motorola, Inc.
© 2006 National Semiconductor Corporation
DS201955
www.national.com

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