AD5560 1.2 A Programmable Power Supply with 16-Bit

By Analog Devices Inc 65

AD5560 1.2 A Programmable Power Supply with 16-Bit

ADI’s AD5560 is a 1.2 A programmable power supply with integrated 16-bit level setting DAC. This device includes the required DAC levels to set the programmable inputs for the drive amplifier, as well as clamping and comparator circuitry. Offset and gain correction is included on-chip for DAC functions. Five internal programmable measure current ranges fixed ranges and two external customer-selectable ranges (EXTFORCE1 and EXTFORCE2) that can supply currents up to ±1.2 A and ±500 mA, respectively, are available.

Headroom and the maximum power dissipation limit the voltage range possible at this high current level. Paralleling or ganging multiple device power supply (DPS) devices can achieve current ranges of more than ±1.2 A or at high current and high voltage combinations. Open-drain alarm outputs are provided in the event of overcurrent, overtemperature, or Kelvin alarm on either the SENSE or DUTGND line. A simple 3-wire serial interface compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards running at clock speeds of up to 50 MHz control the DPS functions. The AD5560 is ideal for automatic test equipment and power supplies.

Features
  • Programmable DPS
    • FV, MI, MV, FNMV functions
  • 5 internal current ranges (on-chip RSENSE)
    • ±5 μA, ±25 μA, ±250 μA, ±2.5 mA, ±25 mA
  • 2 external high current ranges (external RSENSE)
    • EXTFORCE1: ±1.2 A (max)
    • EXTFORCE2: ±500 mA (max)
  • Integrated programmable levels
    • All 16-bit DACs: force DAC, comparator DACs, clamp DACs, offset DAC, OSD DAC, DGS DAC
  • Programmable Kelvin clamp and alarm
  • Offset and gain correction registers on-chip
  • Open-drain alarm flags (temperature, current clamp, Kelvin alarm)
  • SPI-/MICROWIRE-/DSP-compatible interface
  • Package/case: 64-TQFP-EP, 72-CSPBGA
Applications
  • Automatic test equipment
  • Power supplies

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