Features

• Integrated Precision Reference
  2.5V Full Scale 10ppm/°C (LTC2630-L)
  4.096V Full Scale 10ppm/°C (LTC2630-H)
• Maximum INL Error: 1 LSB (LTC2630A-12)
• Low Noise: 0.7mV_P-P, 0.1Hz to 200kHz
• Guaranteed Monotonic over Temperature
• Selectable Internal Reference or Supply as Reference
• 2.7V to 5.5V Supply Range (LTC2630-L)
• Low Power Operation: 180µA at 3V
• Power Down to 1.8µA Maximum (C and I Grades)
• Power-on Reset to Zero or Midscale Options
• SPI Serial Interface
• Double-Buffered Data Latches
• Tiny 6-Lead SC70 Package

Typical Application

Description

The LTC2630 is a family of 12-, 10-, and 8-bit voltage output DACs with an integrated, high-accuracy, low-drift reference in a 6-lead SC70 package. It has a rail-to-rail output buffer and is guaranteed monotonic.

The LTC2630-L has a full-scale output of 2.5V, and operates from a single 2.7V to 5.5V supply. The LTC2630-H has a full-scale output of 4.096V, and operates from a 4.5V to 5.5V supply. Each DAC can also operate in supply as reference mode, which sets the full-scale output to the supply voltage.

The parts use a simple SPI/MICROWIRE™ compatible 3-wire serial interface which operates at clock rates up to 50MHz.

The LTC2630 incorporates a power-on reset circuit. Options are available for reset to zero or reset to midscale after power-up.