Octal 16-Bit Rail-to-Rail DACs in 16-Lead SSOP

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. Daisychain 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.

Applications

* Mobile Communications

* Process Control and Industrial Automation

* Instrumentation

* Automatic Test Equipment

* 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