DAC7800 Dual Monolithic CMOS 12-Bit Multiplying Digital-to-Analog Converter | TI.com

DAC7800 (ACTIVE) Dual Monolithic CMOS 12-Bit Multiplying Digital-to-Analog Converter

 

Description

The DAC7800,DAC7801 and DAC7802 are members of a new family of monolithic dual 12-bit CMOS multiplying Digital-to-Analog Converters (DACs). The digital interface speed and the AC multiplying performance are achieved by using an advanced CMOS process optimized for data conversion circuits. High stability on-chip resistors provide true 12-bit integral and differential linearity over the wide industrial temperature range of –40°C to +85°C.

The DAC7800 features a serial interface capable of clocking-in data at a rate of at least 10MHz. Serial data is clocked (edge triggered) MSB first into a 24-bit shift register and then latched into each DAC separately or simultaneously as required by the application. An asynchronous CLEAR control is provided for power-on reset or system calibration functions. It is packaged in a 16-pin 0.3" wide plastic DIP.

The DAC7801 has a 2-byte (8 + 4) double-buffered interface. Data is first loaded (level transferred) into the input registers in two steps for each DAC. Then both DACs are updated simultaneously. The DAC7801 features an asynchronous CLEAR control. The DAC7801 is packaged in a 24-pin 0.3" wide plastic DIP. The DAC7802 has a single-buffered 12-bit data word interface. Parallel data is loaded (edge triggered) into the single DAC register for each DAC. The DAC7802 is packaged in a 24-pin 0.3" wide plastic DIP.

Features

  • TWO DACs IN A 0.3" WIDE PACKAGE
  • SINGLE +5V SUPPLY
  • HIGH SPEED DIGITAL INTERFACE:
      Serial—DAC7800
      8 + 4-Bit Parallel—DAC7801
      12-Bit Parallel—DAC7802
  • MONOTONIC OVER TEMPERATURE
  • LOW CROSSTALK: –94dB min
  • FULLY SPECIFIED OVER –40°C TO +85°C
  • APPLICATIONS
    • PROCESS CONTROL OUTPUTS
    • ATE PIN ELECTRONICS LEVEL SETTING
    • PROGRAMMABLE FILTERS
    • PROGRAMMABLE GAIN CIRCUITS
    • AUTO-CALIBRATION CIRCUITS

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Parametrics

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Part number Order Resolution (Bits) Architecture DAC channels Interface Output range (Max) (mA/V) Output range (Min) (mA/V) Settling time (µs) Output type Reference: type Rating Operating temperature range (C) Features
DAC7800 Order now 12     Multiplying DAC     2     SPI     2     -2     0.8     Unbuffered Current     Ext     Catalog     -40 to 85        
DAC7615 Samples not available 12     R-2R     4     SPI     2.5     -2.5     10     Buffered Voltage     Ext     Catalog     -40 to 85        
DAC7811 Order now 12     Multiplying DAC     1     SPI     1     0     0.2     Unbuffered Current     Ext     Catalog     -40 to 125     SDO    
DAC8043 Order now 12     Multiplying DAC     1     SPI     2     -2     1     Unbuffered Current     Ext     Catalog     -40 to 85        
DAC8811 Order now 16     Multiplying DAC     1     SPI     2     0     0.5     Unbuffered Current     Ext     Catalog     -40 to 105     Small Size