Digital to Analog Converter ICs
Volume 9, Issue 3 YOUR SEMICONDUCTOR SOLUTIONS RESOURCE

Precision DACs Offer Up to 60 V Output Range

Designers of high voltage systems typically utilize low voltage DACs, coupled with a discrete amplifier solution, to attain the high voltage output drive capability required in applications such as high voltage test equipment, programmable voltage/current sources, precision HV biasing, and receiver bias in optical communications. This approach involves multiple elements: time spent for layout and interface considerations, additional component count, added costs, and increased power consumption.

Solution

ADI's newest family of high voltage DACs addresses these concerns with the introduction of the AD5501 (single) and AD5504 (quad) devices, which integrate a 12-bit DAC, an on-chip high voltage output amplifier, and a precision reference. In addition, a temperature sensor with alarm function and power saving features are also incorporated on chip. The AD5501/AD5504 provide a pin-selectable 0 V to 30 V or 0 V to 60 V output range and the on-chip output amplifiers allow an output swing within the range of AGND +0.5 V and VDD of –0.5 V. The low power, high speed serial interface with readback capability can handle clock speeds up to 30 MHz. The AD5501/AD5504 operate over a wide temperature range of -40°C to +105°C and are available in a 16-lead TSSOP package. The AD5502 is a single channel DAC and offers 16-bit resolution with software-programmable output ranges up to 40 V. The AD5502 includes an integrated 5 ppm/°C internal reference and is available in a 24-lead TSSOP package.

AD550x

AD550x Features

  • Resolution: 12-bit and 16-bit options
  • Output range: 30 V, 40 V, or 60 V
  • Integrated precision reference
  • SPI interface with readback
Part
Number
Number of
Channels
Resolution
(Bits)
INL
(LSB)
Max
Outputs (V)
Temperature
Range (°C)
Package Price
($U.S.)
AD5501 1 12 1 30, 60 –40 to +105 16-lead
TSSOP
4.58
AD5502 1 16 4 5, 10, 40,
±5, ±10
–40 to +85 24-lead
TSSOP
9.92
AD5504 4 12 1 30, 60 –40 to +105 16-lead
TSSOP
8.12

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