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DAC8802

DAC8802 Series

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

Manufacturer: Texas Instruments

Catalog

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

Key Features

Relative Accuracy: 1 LSB MaxDifferential Nonlinearity: 1 LSB Max2-mA Full-Scale Current ±20%, with VREF= ±10 V0.5 µs Settling TimeMidscale or Zero-Scale ResetSeparate 4Q Multiplying Reference InputsReference Bandwidth: 10 MHzReference Dynamics: -105 dB THDSPI™-Compatible 3-Wire Interface: 50 MHzDouble Buffered Registers to Enable Simultaneous Multichannel UpdateInternal Power-On ResetIndustry-Standard Pin ConfigurationAPPLICATIONSAutomatic Test EquipmentInstrumentationDigitally Controlled CalibrationSPI is a trademark of Motorola, Inc.All other trademarks are the property of their respective owners.Relative Accuracy: 1 LSB MaxDifferential Nonlinearity: 1 LSB Max2-mA Full-Scale Current ±20%, with VREF= ±10 V0.5 µs Settling TimeMidscale or Zero-Scale ResetSeparate 4Q Multiplying Reference InputsReference Bandwidth: 10 MHzReference Dynamics: -105 dB THDSPI™-Compatible 3-Wire Interface: 50 MHzDouble Buffered Registers to Enable Simultaneous Multichannel UpdateInternal Power-On ResetIndustry-Standard Pin ConfigurationAPPLICATIONSAutomatic Test EquipmentInstrumentationDigitally Controlled CalibrationSPI is a trademark of Motorola, Inc.All other trademarks are the property of their respective owners.

Description

AI
The DAC8802 is a dual, 14-bit, current-output digital-to-analog converter (DAC) designed to operate from a single 2.7 V to 5.5 V 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 I-to-V precision amplifier. A doubled-buffered, serial data interface offers high-speed, 3-wire, SPI and microcontroller compatible inputs using serial data in (SDI), clock (CLK), and a chip-select (CS). A common level-sensitive load DAC strobe (LDAC) input allows simultaneous update of all DAC outputs from previously loaded input registers. Additionally, an internal power-on reset forces the output voltage to zero at system turn-on. An MSB pin allows system reset assertion (RS) to force all registers to zero code when MSB = 0, or to half-scale code when MSB = 1. The DAC8802 is available in an TSSOP-16 package. The DAC8802 is a dual, 14-bit, current-output digital-to-analog converter (DAC) designed to operate from a single 2.7 V to 5.5 V 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 I-to-V precision amplifier. A doubled-buffered, serial data interface offers high-speed, 3-wire, SPI and microcontroller compatible inputs using serial data in (SDI), clock (CLK), and a chip-select (CS). A common level-sensitive load DAC strobe (LDAC) input allows simultaneous update of all DAC outputs from previously loaded input registers. Additionally, an internal power-on reset forces the output voltage to zero at system turn-on. An MSB pin allows system reset assertion (RS) to force all registers to zero code when MSB = 0, or to half-scale code when MSB = 1. The DAC8802 is available in an TSSOP-16 package.