1 Features

• Ensured Monotonicity
• Low-Power Operation
• Rail-to-Rail Voltage Output
• Power-On Reset to 0 V
• Simultaneous Output Updating
• Wide Power Supply Range (2.7 V to 5.5 V)
• Industry's Smallest Package
• Power Down Modes
• Key Specifications
  • Resolution: 8 Bits
  • INL: ±0.5 LSB (Maximum)
  • DNL: +0.18 / −0.13 LSB (Maximum)
  • Setting Time: 4.5 µs (Maximum)
  • Zero Code Error: +15 mV (Maximum)
  • Full-Scale Error: −0.75 %FS (Maximum)
  • Supply Power:
    • Normal: 1.1 mW (3 V) / 2.5 mW (5 V) Typical
    • Power Down: 0.3 µW (3 V) / 0.8 µW (5 V) Typical

2 Applications

• Battery-Powered Instruments
• Digital Gain and Offset Adjustment
• Programmable Voltage and Current Sources
• Programmable Attenuators

3 Description

The DAC084S085 is a full-featured, general-purpose QUAD 8-bit voltage-output digital-to-analog converter (DAC) that can operate from a single 2.7-V to 5.5-V supply and consumes 1.1 mW at 3 V and 2.5 mW at 5 V. The DAC084S085 is packaged in 10-pin SON and VSSOP packages. The 10-pin SON package makes the DAC084S085 the smallest QUAD DAC in its class. The on-chip output amplifier allows rail-to-rail output swing and the three wire serial interface operates at clock rates up to 40 MHz over the entire supply voltage range. Competitive devices are limited to 25-MHz clock rates at supply voltages in the 2.7-V to 3.6-V range. The serial interface is compatible with standard SPI, QSPI, MICROWIRE, and DSP interfaces.

The reference for the DAC084S085 serves all four channels and can vary in voltage between 1 V and V_A, providing the widest possible output dynamic range. The DAC084S085 has a 16-bit input shift register that controls the outputs to be updated, the mode of operation, the power-down condition, and the binary input data. All four outputs can be updated simultaneously or individually depending on the setting of the two mode of operation bits.

1. For all available packages, see the orderable addendum at the end of the data sheet.

DNL vs Code at V_A = 3 V