14-Bit Parallel Low Glitch Multiplying DAC with 4-Quadrant Resistors

The LTC1591/LTC1597 are pin compatible, parallel input 14-bit and 16-bit multiplying current output DACs that operate from a single 5V supply. INL and DNL are accurate to 1LSB over the industrial temperature range in both 2- and 4-quadrant multiplying modes. True 16-bit 4-quadrant multiplication is achieved with on-chip 4-quadrant multiplication resistors.

These DACs include an internal deglitcher circuit that reduces the glitch impulse to less than 2nV-s (typ). The asynchronous CLR pin resets the LTC1591/LTC1597 to zero scale and LTC1591-1/LTC1597-1 to mid-scale.

The LTC1591/LTC1597 are available in 28-pin SSOP and PDIP packages and are specified over the industrial temperature range.

For serial interface 16-bit current output DACs refer to the LTC1595/LTC1596 data sheet.

Applications

* Process Control and Industrial Automation

* Direct Digital Waveform Generation

* Software-Controlled Gain Adjustment

* Automatic Test Equipment

* True 14-Bit Performance Over Industrial Temperature Range

* DNL and INL: 1LSB Max

* On-Chip 4-Quadrant Resistors Allow Precise 0V to 10V, 0V to −10V or ±10V Outputs

* Pin Compatible 14- and 16-Bit Parts

* Asynchronous Clear Pin

* LTC1591/LTC1597: Reset to Zero Scale

* LTC1591-1/LTC1597-1: Reset to Midscale

* Glitch Impulse < 2nV-s

* 28-Lead SSOP Package

* Low Power Consumption: 10µW Typ

* Power-On Reset