AD5755 / AD5755-1 / AD5757 DACs

By Analog Devices Inc 117

AD5755 / AD5755-1 / AD5757 DACs

Analog Devices' AD5755, AD5755-1, and AD5757 are quad, voltage and current output DACs that operate with a power supply range from −26.4 V to +33 V. On-chip dynamic power control minimizes package power dissipation in current mode. This is achieved by regulating the voltage on the output driver from 7.4 V to 29.5 V using a DC-to-DC boost converter optimized for minimum on chip power dissipation.

The part uses a versatile 3-wire serial interface that operates at clock rates of up to 30 MHz and is compatible with standard SPI, QSPI™, MICROWIRE™, DSP, and microcontroller inter-face standards. The interface also features optional CRC-8 packet error checking, as well as a watchdog timer that monitors activity on the interface.

Features
  • Dynamic power control for thermal management
  • Current output ranges: 0 mA to 20 mA, 4 mA to 20 mA, or 0 mA to 24 mA ±0.05% total unadjusted error (TUE) maximum
  • Voltage output ranges (with 20% over range): 0 V to 5 V, 0 V to 10 V, ±5 V, and ±10 V (AD5755 and AD5755-1 only)
  • ±0.04% total unadjusted error (TUE) maximum
  • On-chip reference (±10 ppm/°C maximum)
  • Current and voltage output pins connectable to a single terminal
  • 16-bit resolution and monotonicity
  • HART connectivity (AD5755-1 ONLY)
  • User programmable offset and gain
  • On-chip diagnostics
  • −40°C to +105°C temperature range

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