
Linear Technology
DESCRIPTION
The LTC®1595/LTC1596/LTC1596-1 are serial input, 16-bit multiplying current output DACs. The LTC1595 is pin and hardware compatible with the 12-bit DAC8043 and comes in 8-pin PDIP and SO packages. The LTC1596 is pin and hardware compatible with the 12-bit DAC8143/AD7543 and comes in 16-pin PDIP and SO wide packages.
Both are specified over the industrial temperature range. Sensitivity of INL to op amp VOS is reduced by five times compared to the industry standard 12-bit DACs, so most systems can be easily upgraded to true 16-bit resolution and linearity without requiring more precise op amps.
FEATURES
■ SO-8 Package (LTC1595)
■ DNL and INL: 1LSB Max
■ Low Glitch Impulse: 1nV-s Typ
■ Fast Settling to 1LSB: 2µs (with LT1468)
■ Pin Compatible with Industry Standard 12-Bit DACs: DAC8043 and DAC8143/AD7543
■ 4-Quadrant Multiplication
■ Low Supply Current: 10µA Max
■ Power-On Reset
LTC1595/LTC1596: Resets to Zero Scale
LTC1596-1: Resets to Midscale
■ 3-Wire SPI and MICROWIRETM Compatible Serial Interface
■ Daisy-Chain Serial Output (LTC1596)
■ Asynchronous Clear Input
LTC1596: Clears to Zero Scale
LTC1596-1: Clears to Midscale
APPLICATIONS
■ Process Control and Industrial Automation
■ Software Controlled Gain Adjustment
■ Digitally Controlled Filter and Power Supplies
■ Automatic Test Equipment