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ICL7134 - 14-Bit Multiplying Microprocessor-Compatible D/A Converter

General Description

The ICL7134 combines a four-quadrant multiplying DAC using thin film resistor and CMOS circuitry with an on-chip PROM-controlled correction circuit to achieve true 14-bit linearity without laser trimming.

Key Features

  • 14-Bit Linearity (0.003% FSR).
  • No Gain Adjustment Necessary.
  • Microprocessor-Compatible with Double Buffered Inputs.
  • Bipolar.

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Full PDF Text Transcription for ICL7134 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for ICL7134. For precise diagrams, and layout, please refer to the original PDF.

® December 1997 NO CO T RE N MME FO DED RN E N ESIG WD S ICL7134 14-Bit Multiplying Microprocessor-Compatible D/A Converter Description The ICL7134 combines a four-quadra...

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ompatible D/A Converter Description The ICL7134 combines a four-quadrant multiplying DAC using thin film resistor and CMOS circuitry with an on-chip PROM-controlled correction circuit to achieve true 14-bit linearity without laser trimming. Microprocessor bus interfacing is eased using standard memory WRITE cycle timing and control signal use. Two input buffer registers are separately loaded with the 8 least significant bits (LS register) and the 6 most significant bits (MS register). Their contents are then transferred to the 14-bit DAC register, which controls the current switches.

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