LMC7111中文资料德州仪器数据手册PDF规格书

1FEATURES

23• Guaranteed Monotonicity

• Low Power Operation

• Rail-to-Rail Voltage Output

• Power-on Reset to Zero Volts Output

• SYNC Interrupt Facility

• Wide Power Supply Range (+2.7V to +5.5V)

• Small Packages

• Power Down Feature

APPLICATIONS

• Battery-Powered Instruments

• Digital Gain and Offset Adjustment

• Programmable Voltage & Current Sources

• Programmable Attenuators

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 standard SPI™,

QSPI, MICROWIRE and DSP interfaces. Competitive

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

voltage 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 temperature range of −40°C

to +105°C.