LTC2624 Datasheet

• Smallest Pin Compatible Quad 16-Bit DAC:
  • LTC2624: 12-Bits
• Guaranteed 16-Bit Monotonic Over Temperature
• Separate Reference Inputs for each DAC
• Wide 2.5V to 5.5V Supply Range
• Low Power Operation: 250µA per DAC at 3V
• Individual DAC Power-Down to 1µA, Max
• Ultralow Crosstalk Between DACs (<5µV)
• High Rail-to-Rail Output Drive (±15mA)
• Double Buffered Digital Inputs
• LTC2624-1: Power-On Reset to Midscale
• 16-Lead Narrow SSOP Package

• Mobile Communications
• Process Control and Industrial Automation
• Instrumentation
• Automatic Test Equipment

The LTC2624 are quad 12-bit 2.5V to 5.5V rail-to-rail voltage output DACs in 16-lead narrow SSOP packages. These parts have separate reference inputs for each DAC. They have built-in high performance output buffers and are guaranteed monotonic.

These parts establish advanced 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 LTC2624 incorporate a poweron 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. The power-on reset circuit resets the LTC2624-1 to midscale. The voltage outputs stay at midscale until a valid write and update take place.