Features

• Smallest Pin Compatible Octal DACs:
  LTC2600: 16 Bits
  LTC2610: 14 Bits
  LTC2620: 12 Bits
• Guaranteed 16-Bit Monotonic Over Temperature
• Wide 2.5V to 5.5V Supply Range
• Low Power Operation: 250μA per DAC at 3V
• Individual Channel Power-Down to 1μA, Max
• Ultralow Crosstalk Between DACs (<10μV)
• High Rail-to-Rail Output Drive (±15mA, Min)
• Double-Buffered Digital Inputs
• Pin Compatible 10-/8-Bit Versions (LTC1660/LTC1665)
• Tiny 16-Lead Narrow SSOP and 20-Lead 4mm × 5mm QFN Packages

Typical Application

Description

The LTC2600/LTC2610/LTC2620 are octal 16-, 14- and 12-bit, 2.5V-to-5.5V rail-to-rail voltage-output DACs in 16-lead narrow SSOP and 20-lead 4mm × 5mm QFN packages. They have built-in high performance output buffers and are guaranteed monotonic.

These parts establish new board-density benchmarks for 16- and 14-bit DACs and advance performance standards for output drive, crosstalk and load regulation in single-supply, voltage-output multiples.

The parts use a simple SPI/MICROWIRE compatible 3-wire serial interface which can be operated at clock rates up to 50MHz. Daisy-chain capability and a hardware CLR function are included.

The LTC2600/LTC2610/LTC2620 incorporate a power-on reset circuit. During power-up, the voltage outputs rise less than 10mV above zero-scale; and after power-up, they stay at zero-scale until a valid write and update take place.