OBSOLETE PRODUCT — AD8303:  +3 V, Dual, Serial Input Complete 12-Bit DAC

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The AD8303 is a complete (includes internal reference) dual, 12-bit, voltage output digital-to-analog converter designed to operate from a single +3 volt supply. Built using a CBCMOS process, this monolithic DAC offers the user low cost and ease-of-use in single-supply +3 volt systems. Operation is guaranteed over the supply voltage range of +2.7 V to +5.5 V making this device ideal for battery operated applications.

The 2.0475 V full-scale voltage output is laser-trimmed to maintain accuracy over the operating temperature range of the device. The binary input data format provides an easy-to-use one-half millivolt-per-bit software programmability. The voltage outputs are capable of sourcing 3 mA.

A double buffered serial data interface offers high speed, three-wire, DSP and SPI microcontroller compatible inputs using data in (SDI), clock (CLK) and load strobe (LDA + LDB) pins. A chip-select (CS) pin simplifies connection of multiple DAC packages by enabling the clock input when active low. Additionally, an RS input sets the output to zero scale or to 1/2 scale based on the level applied to the MSB pin. A power shutdown feature reduces power dissipation to less than 3 µW.

The AD8303 is specified over the extended industrial (-40°C to +85°C) temperature range. AD8303s are available in plastic DIP and low profile 1.75 mm height SO-14 surface mount packages. For single-channel DAC applications, see the AD8300 which is offered in the 8-lead DIP and SO-8 packages.

AD8303:  +3 V, Dual, Serial Input Complete 12-Bit DAC

Product Description

The AD8303 is a complete (includes internal reference) dual, 12-bit, voltage output digital-to-analog converter designed to operate from a single +3 volt supply. Built using a CBCMOS process, this monolithic DAC offers the user low cost and ease-of-use in single-supply +3 volt systems. Operation is guaranteed over the supply voltage range of +2.7 V to +5.5 V making this device ideal for battery operated applications.

The 2.0475 V full-scale voltage output is laser-trimmed to maintain accuracy over the operating temperature range of the device. The binary input data format provides an easy-to-use one-half millivolt-per-bit software programmability. The voltage outputs are capable of sourcing 3 mA.

A double buffered serial data interface offers high speed, three-wire, DSP and SPI microcontroller compatible inputs using data in (SDI), clock (CLK) and load strobe (LDA + LDB) pins. A chip-select (CS) pin simplifies connection of multiple DAC packages by enabling the clock input when active low. Additionally, an RS input sets the output to zero scale or to 1/2 scale based on the level applied to the MSB pin. A power shutdown feature reduces power dissipation to less than 3 µW.

The AD8303 is specified over the extended industrial (-40°C to +85°C) temperature range. AD8303s are available in plastic DIP and low profile 1.75 mm height SO-14 surface mount packages. For single-channel DAC applications, see the AD8300 which is offered in the 8-lead DIP and SO-8 packages.

REPLACEMENT PARTS

Rochester Electronics is the only authorized source of Analog Devices' products that have previously been discontinued or have become obsolete. Product availability should be checked directly with Rochester Electronics.



Specifications

Resolution (Bits) 12bit
# of DACs 2
Single-Supply Yes
Max Pos Supply (V) +5.5V
Package DIP,SOIC
DAC Type Voltage Out
DAC Input Data Format Ser,SPI
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