DAC 2-CH Segment 8-bit 40-Pin TQFN EP

The MAX5851 dual, 8-bit, 80Msps, digital-to-analog converter (DAC) provides superior dynamic performance in wideband communication systems. The device integrates two 8-bit DAC cores, and a 1.24V reference. The converter supports single-ended and differential modes of operation. The MAX5851 dynamic performance is maintained over the entire 2.7V to 3.6V power-supply operating range. The analog outputs support a -1.0V to +1.25V compliance voltage. The MAX5851 can also operate in interleave data mode to reduce the I/O pin count. This allows the converter to be updated on a single, 8-bit bus. The MAX5851 features digital control of channel gain matching to within ±0.4dB in sixteen 0.05dB steps. Channel matching improves sideband suppression in analog quadrature modulation applications. The onchip 1.24V bandgap reference includes a control amplifier that allows external full-scale adjustments of both channels through a single resistor. The internal reference can be disabled and an external reference may be applied for high-accuracy applications. The MAX5851 features full-scale current outputs of 2mA to 20mA and operates from a 2.7V to 3.6V single supply. The DAC supports three modes of power-control operation: normal, low-power standby, and complete powerdown. In power-down mode, the operating current is reduced to 1µA. The MAX5851 is packaged in a 40-pin thin QFN with exposed paddle (EP) and is specified for the extended (-40°C to +85°C) temperature range.

• 8-Bit, 80Msps Dual DAC
• Low Power
  • 58mW with I_FS = 2mA at f_CLK = 80MHz
• 2.7V to 3.6V Single Supply
• Full Output Swing and Dynamic Performance at 2.7V Supply
• Superior Dynamic Performance
  • 66dBc SFDR at f_OUT = 20MHz
• Programmable Channel Gain Matching
• Integrated 1.24V Low-Noise Bandgap Reference
• Single-Resistor Gain Control
• Interleaved Data Mode
• Single-Ended and Differential Clock Input Modes
• Miniature 40-Pin Thin QFN Package, 6mm x 6mm
• EV Kit Available-MAX5852 EV Kit