The DAC7811 is a CMOS, 12-bit, current output digital-to-analog converter (DAC). This device operates from a 2.7-V to 5.5-V power supply, making it suitable for battery-powered and many other applications.
This DAC uses a double-buffered 3-wire serial interface that is compatible with SPI, QSPI™, MICROWIRE, and most DSP interface standards. In addition, a serial data out pin (SDO) allows for daisy-chaining when multiple devices are used. Data readback allows the user to read the contents of the DAC register via the SDO pin. On power-up, the internal shift register and latches are filled with zeroes and the DAC outputs are at zero scale.
The DAC7811 offers excellent 4-quadrant multiplication characteristics, with large signal multiplying bandwidth of 10 MHz. The applied external reference input voltage (VREF) determines the full-scale output current. An integrated feedback resistor (RFB) provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier.
The DAC7811 is available in a 10-lead VSSOP package.
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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|
||12||Multiplying DAC||1||SPI||1||0||0.2||Unbuffered Current||Ext||Catalog||-40 to 125||SDO|
|DAC7615||Samples not available||12||R-2R||4||SPI||2.5||-2.5||10||Buffered Voltage||Ext||Catalog||-40 to 85|
|DAC7800||Samples not available||12||Multiplying DAC||2||SPI||2||-2||0.8||Unbuffered Current||Ext||Catalog||-40 to 85|
||12||Multiplying DAC||1||SPI||2||-2||1||Unbuffered Current||Ext||Catalog||-40 to 85|
||16||Multiplying DAC||1||SPI||2||0||0.5||Unbuffered Current||Ext||Catalog||-40 to 105||Small Size|