The FMS3818 is a low-cost triple D/A converter, tailored to fit graphics and video applications where speed is critical.

CMOS-level inputs are converted to analog current outputs that can drive 25-37.5W loads corresponding to doubly-terminated 50-75W loads. A sync current following SYNC input timing is added to the I_OG output. BLANK# will override RGB inputs, setting I_OG, I_OB and I_OR currents to zero when BLANK# = L. Although appropriate for many applications the internal 1.25V reference voltage can be overridden by the V_REF input.

Few external components are required, just the current reference resistor, current output load resistors, bypass capacitors and decoupling capacitors.

Package is a 48-lead LQFP. Fabrication technology is CMOS. Performance is guaranteed from 0 to 70°C.

• ± 2.5% gain matching
• ± 0.5 LSB linearity error
• Internal bandgap voltage reference
• Low glitch energy
• Single 3.3 Volt power supply

• PC Graphics
• Video signal conversion
  • RGB
  • YC_BC_R
  • Composite, Y, C