Analog Devices Inc. LTC2672 12- & 16-Bit Digital-to-Analog Converter

Analog Devices Inc. LTC2672 12- & 16-Bit Digital-to-Analog Converter is a five-channel, current-source output DAC, with selectable output ranges, precision reference, and a multiplexer for surveying the channel output voltages and currents. The eight current ranges are programmable per channel with full-scale outputs of up to 300mA. The channels can be paralleled to allow either ultrafine adjustments of large currents or combined outputs of up to 1.5A. A dedicated supply pin is provided for each output channel. Each channel can be operated from 2.1V to VCC, and internal switches allow any output to be pulled to the optional negative supply. 

The LTC2672 includes a precision integrated 1.25V reference (10 ppm/°C maximum), with the option to use an external reference. The Serial Peripheral Interface (SPI) compatible, 3-wire serial interface operates on logic levels as low as 1.71V and at clock rates as high as 50MHz.

The Analog Devices Inc. LTC2672 ADC is offered in a 5mm x 5mm Lead Frame Chip Scale Package (LFCSP) with an exposed pad for enhanced thermal performance.


  • Per-channel programmable output current ranges: 300mA, 200mA, 100mA, 0mA, 25mA, 12.5mA, 6.25mA, and 3.125mA
  • Flexible 2.1V to VCC output supply voltages
  • Flexible single- or dual-supply operation
  • 0.6V maximum dropout voltage guaranteed
  • Separate voltage supply per output channel
  • Internal switches to an optional negative supply
  • Precision internal reference (10ppm/°C maximum VREF temperature coefficient) or external reference
  • Full 12- & 16-bit resolution at all ranges
  • Analog multiplexer monitors voltages and currents
  • A/B toggle via SPI or dedicated pin
  • 1.71V to VCC digital I/O supply
  • Operating temperature range
    • LTC2672CUH: 0°C to +70°C
    • LTC2672IUH: -40°C to +85°C
    • LTC2672HUH: -40°C to +125°C
  • 5mm x 5mm LFCSP32 package


  • Tunable lasers
  • Semiconductor optical amplifier biasing
  • Resistive heaters
  • Current mode biasing

Block Diagram

Block Diagram - Analog Devices Inc. LTC2672 12- & 16-Bit Digital-to-Analog Converter

Package Outline

Mechanical Drawing - Analog Devices Inc. LTC2672 12- & 16-Bit Digital-to-Analog Converter
Published: 2021-03-18 | Updated: 2022-03-11