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兼容微处理器的 12 位数模转换器
Resolution (Bits) 12
Number of DAC channels (#) 1
Interface type Parallel
Output type Buffered Voltage
Settling time (μs) 4
Reference type Ext, Int
Architecture R-2R
Rating Catalog
Output range (Max) (mA/V) 10
Output range (Min) (mA/V) -10
Operating temperature range (C) -40 to 85, 0 to 70
  • ±1/2LSB NONLINEARITY OVER TEMPERATURE
  • GUARANTEED MONOTONIC OVER TEMPERATURE
  • LOW POWER: 270mW typ
  • DIGITAL INTERFACE DOUBLE BUFFERED: 12 AND 8 + 4 BITS
  • SPECIFIED AT ±12V AND ±15V POWER SUPPLIES
  • RESET FUNCTION TO BIPOLAR ZERO
  • 0.3" WIDE DIP AND SO PACKAGES

Note: Recommended Voltage Reference: REF02 and REF102

The DAC813 is a complete monolithic 12-bit digital-to-analog converter with a flexible digital interface. It includes a precision +10V reference, interface control logic, double-buffered latch and a 12-bit D/A converter with voltage output operational amplifier. Fast current switches and laser-trimmed thin-film resistors provide a highly accurate, fast D/A converter.

Digital interfacing is facilitated by a double buffered latch. The input latch consists of one 8-bit byte and one 4-bit nibble to allow interfacing to 8-bit (right justified format) or 16-bit data buses. Input gating logic is designed so that the last nibble or byte to be loaded can be loaded simultaneously with the transfer of data to the D/A latch saving computer instructions.

A reset control allows the DAC813 D/A latch to asynchronously reset the D/A output to bipolar zero, a feature useful for power-up reset, recalibration, or for system re-initialization upon system failure.

The DAC813 is specified to ±1/2LSB maximum linearity error (J, A grades) and ±1/4LSB (K grade). It is packaged in 28-pin 0.3" wide plastic DIP and 28-lead plastic SOIC.