DAC8805 Series

14-Bit, Dual Channel, Parallel Interface, Multiplying Digital-to-Analog Converter

Catalog

14-Bit, Dual Channel, Parallel Interface, Multiplying Digital-to-Analog Converter

Part	INL/DNL (LSB)	Mounting Type	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Output Type	Data Interface	Reference Type	Number of Bits	Architecture	Differential Output	Settling Time	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Package / Case [custom]	Package / Case [custom]	Package / Case
Texas Instruments DAC8805QDBT	0.5 LSB	Surface Mount	38-TSSOP	125 °C	-40 °C	2.7 V	5.5 V	Current - Unbuffered	Parallel	External	14	Multiplying DAC		500 ns	5.5 V	2.7 V	4.4 mm	0.173 in	38-TFSOP

Catalog

14-Bit, Dual Channel, Parallel Interface, Multiplying Digital-to-Analog Converter

Key Features

• ±0.5LSB DNL±0.5LSB INLLow Noise: 12nV/HzLow Power: IDD= 1µA per channel at 2.7V2mA Full-Scale Current, with VREF= 10VSettling Time: 0.5µs14-Bit Monotonic4-Quadrant Multiplying Reference InputsReference Bandwidth: 10MHzReference Input: ±18VReference Dynamics: -105 THDMidscale or Zero Scale ResetAnalog Power Supply: +2.7V to +5.5VTSSOP-38 PackageIndustry-Standard Pin ConfigurationPin Compatible with the 16-Bit DAC8822Temperature Range: -40°C to +125°CAPPLICATIONSAutomatic Test EquipmentInstrumentationDigitally Controlled CalibrationIndustrial Control PLCsAll trademarks are the property of their respective owners±0.5LSB DNL±0.5LSB INLLow Noise: 12nV/HzLow Power: IDD= 1µA per channel at 2.7V2mA Full-Scale Current, with VREF= 10VSettling Time: 0.5µs14-Bit Monotonic4-Quadrant Multiplying Reference InputsReference Bandwidth: 10MHzReference Input: ±18VReference Dynamics: -105 THDMidscale or Zero Scale ResetAnalog Power Supply: +2.7V to +5.5VTSSOP-38 PackageIndustry-Standard Pin ConfigurationPin Compatible with the 16-Bit DAC8822Temperature Range: -40°C to +125°CAPPLICATIONSAutomatic Test EquipmentInstrumentationDigitally Controlled CalibrationIndustrial Control PLCsAll trademarks are the property of their respective owners

Description

The DAC8805 dual, multiplying digital-to-analog converter (DAC) is designed to operate from a single 2.7V to 5.5V supply. The applied external reference input voltage VREFdetermines the full-scale output current. An internal feedback resistor (RFB) provides temperature tracking for the full-scale output when combined with an external, current-to-voltage (I/V) precision amplifier. A RSTSEL pin allows system reset assertion (RS) to force all registers to zero code when RSTSEL = '0', or to mid-scale code when RSTSEL = '1'. Additionally, an internal power-on reset forces all registers to zero or mid-scale code at power-up, depending on the state of the RSTSEL pin. A parallel interface offers high-speed communications. The DAC8805 is packaged in a space-saving TSSOP-38 package and has an industry-standard pinout. The device is specified from -40°C to +125°C. For a 16-bit, pin-compatible version, see the DAC8822. The DAC8805 dual, multiplying digital-to-analog converter (DAC) is designed to operate from a single 2.7V to 5.5V supply. The applied external reference input voltage VREFdetermines the full-scale output current. An internal feedback resistor (RFB) provides temperature tracking for the full-scale output when combined with an external, current-to-voltage (I/V) precision amplifier. A RSTSEL pin allows system reset assertion (RS) to force all registers to zero code when RSTSEL = '0', or to mid-scale code when RSTSEL = '1'. Additionally, an internal power-on reset forces all registers to zero or mid-scale code at power-up, depending on the state of the RSTSEL pin. A parallel interface offers high-speed communications. The DAC8805 is packaged in a space-saving TSSOP-38 package and has an industry-standard pinout. The device is specified from -40°C to +125°C. For a 16-bit, pin-compatible version, see the DAC8822.