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 MICROWIRE™ Compatible
  Serial Interface
• Daisy-Chain Serial Output (LTC1596)
• Asynchronous Clear Input
  LTC1596: Clears to Zero Scale
  LTC1596-1: Clears to Midscale

Typical Application

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 the 16-pin SO wide package.

Both are specified over the industrial temperature range. Sensitivity of INL to op amp V_OS 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.

These DACs include an internal deglitching circuit that reduces the glitch impulse by more than ten times to less than 1nV-s typ.

The DACs have a clear input and a power-on reset. The LTC1595 and LTC1596 reset to zero-scale. The LTC1596‑1 is a version of the LTC1596 that resets to mid-scale.