DAC081S101 Datasheet, PDF (1/19 Pages) National Semiconductor (TI) – 8-Bit Micro Power Digital-to-Analog Converter with Rail-to-Rail Output

June 2005
DAC081S101
8-Bit Micro Power Digital-to-Analog Converter with
Rail-to-Rail Output
General Description
The DAC081S101 is a full-featured, general purpose 8-bit
voltage-output digital-to-analog converter (DAC) that can
operate from a single +2.7V to 5.5V supply and consumes
just 175 µA of current at 3.6 Volts. The on-chip output
amplifier allows rail-to-rail output swing and the three wire
serial interface operates at clock rates up to 30 MHz over the
specified supply voltage range and is compatible with stan-
dard SPI™, QSPI, MICROWIRE and DSP interfaces. Com-
petitive devices are limited to 20 MHz clock rates at supply
voltages in the 2.7V to 3.6V range.
The supply voltage for the DAC081S101 serves as its volt-
age reference, providing the widest possible output dynamic
range. A power-on reset circuit ensures that the DAC output
powers up to zero volts and remains there until there is a
valid write to the device. A power-down feature reduces
power consumption to less than a microWatt.
The low power consumption and small packages of the
DAC081S101 make it an excellent choice for use in battery
operated equipment.
The DAC081S101 is a direct replacement for the AD5300
and is one of a family of pin compatible DACs, including the
10-bit DAC101S101 and the 12-bit DAC121S101. The
DAC081S101 operates over the extended industrial tem-
perature range of −40˚C to +105˚C.
Features
n Guaranteed Monotonicity
n Low Power Operation
n Rail-to-Rail Voltage Output
n Power-on Reset to Zero Volts Output
n SYNC Interrupt Facility
n Wide power supply range (+2.7V to +5.5V)
n Small Packages
n Power Down Feature
Key Specifications
n Resolution
8 bits
n DNL
+0.04, -0.02 LSB (typ)
n Output Settling Time
3 µs (typ)
n Zero Code Error
3.8 mV (typ)
n Full-Scale Error
−0.07 %FS (typ)
n Power Consumption
— Normal Mode 0.63 mW (3.6V) / 1.41 mW (5.5V) typ
— Pwr Down Mode 0.14 µW (3.6V) / 0.33 µW (5.5V) typ
Applications
n Battery-Powered Instruments
n Digital Gain and Offset Adjustment
n Programmable Voltage & Current Sources
n Programmable Attenuators
Pin Configuration
20155101
Ordering Information
Order Numbers
DAC081S101CIMM
DAC081S101CIMMX
DAC081S101CIMK
DAC081S101CIMKX
DAC081S101EVAL
Temperature Range
−40˚C ≤ T_A ≤ +105˚C
−40˚C ≤ T_A ≤ +105˚C
−40˚C ≤ T_A ≤ +105˚C
−40˚C ≤ T_A ≤ +105˚C
SPI™ is a trademark of Motorola, Inc.
© 2005 National Semiconductor Corporation DS201551
20155102
Package
MSOP
MSOP Tape-and-Reel
TSOT
TSOT Tape-and-Reel
Evaluation Board
Top Mark
X64C
X64C
X65C
X65C
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