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AD8600:  16-Channel, 8-Bit Multiplying DAC

Product Details


Newer Alternatives: NEW DESIGNS:
-- AD5391 16-Channel 12-Bit 3V/5V Single-Supply Voltage-Output DAC
-- AD5516 16-Channel 12-Bit Bipolar Voltage-Output DAC with 14-Bit Increment Mode

The AD8600 contains 16 independent voltage output digital-to-analog converters that share a common external reference input voltage. Each DAC has its own DAC register and input register to allow double buffering. An 8-bit parallel data input, four address pins, a CS select, a LD, EN, R/W, and RS provide the digital interface.

The AD8600 is constructed in a monolithic CBCMOS process which optimizes use of CMOS for logic and bipolar for speed and precision. The digital-to-analog converter design uses voltage mode operation ideally suited to single supply operation. The internal DAC voltage range is fixed at DACGND to VREF. The voltage buffers provide an output voltage range that approaches ground and extends to 1.0 V below VCC. Changes in reference voltage values and digital inputs will settle within ±1 LSB in 2µs.

Data is preloaded into the input registers one at a time after the internal address decoder selects the input register. In the write mode (R/W low) data is latched into the input register during the positive edge of the EN pulse. Pulses as short as 40 ns can be used to load the data. After changes have been submitted to the input registers, the DAC registers are simultaneously updated by a common load EN x LD strobe. The new analog output voltages simultaneously appear on all 16 outputs.

At system power up or during fault recovery the reset (RS) pin forces all DAC registers into the zero state which places zero volts at all DAC outputs.

The AD8600 is offered in the PLCC-44 package. The device is designed and tested for operation over the extended industrial temperature range of -40°C to +85°C.

FEATURES and BENEFITS

  • 16 Independently Addressable Voltage Outputs
  • Full-Scale Set by External Reference
  • 2 µs Settling Time
  • Double Buffered 8-Bit Parallel Input
  • High Speed Data Load Rate
  • Data Readback
  • Operates from Single +5 V
  • Operation ±6 V Supply
    Extends Output Range

Functional Block Diagram for AD8600

Similar Products

  • AD5590 16 Input/16 Output Analog I/O Port With Integrated Amplifiers
  • AD5391 16-Channel 12-Bit 3V/5V Single-Supply Voltage-Output DAC
  • AD5516 16-Channel 12-Bit Bipolar Voltage-Output DAC with 14-Bit Increment Mode

Documentation

Title Content Type File Type
AD8600: 16-Channel, 8-Bit Multiplying DAC Data Sheet  (Rev 0, 07/1994) (pdf, 236 kB) Data Sheets PDF
AN-214: Ground Rules for High Speed Circuits  (pdf, 356 kB)
Layout and Wiring Are Critical in Video Converter Circuits.
Application Notes PDF
Choosing High-Speed Signal Processing Components for Ultrasound Systems
(Analog Dialogue, Vol. 29, No. 2, 1995)
Analog Dialogue HTML
Digital to Analog Converters ICs Solutions Bulletin  (pdf) Solutions Bulletins PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.


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