Catalog
Serial 16-Bit Multiplying DACs
Key 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:DAC8043DAC8143/AD7543
• DAC8043
• DAC8143/AD7543
• 4-Quadrant Multiplication
• Low Supply Current: 10µA Max
• Power-On ResetLTC1595/LTC1596: Resets to Zero ScaleLTC1596-1: Resets to Midscale
• 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 InputLTC1596: Clears to Zero ScaleLTC1596-1: Clears to Midscale
• LTC1596: Clears to Zero Scale
• LTC1596-1: Clears to Midscale
Description
AI
The LTC1595/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 VOSis 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.ApplicationsProcess Control and Industrial AutomationSoftware Controlled Gain AdjustmentDigitally Controlled Filter and Power SuppliesAutomatic Test Equipment
