DAC61408 Series

8-channel 12-bit high-voltage output DAC with integrated internal reference

Catalog

8-channel 12-bit high-voltage output DAC with integrated internal reference

Part	Supplier Device Package	Number of Bits	Architecture	Settling Time	Reference Type	Package / Case	Number of D/A Converters	Operating Temperature [Max]	Operating Temperature [Min]	Differential Output	Mounting Type	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]	Output Type	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Data Interface	INL/DNL (LSB)
Texas Instruments DAC61408RHAR	40-VQFN (6x6)	12 bits	R-2R	12 µs	Internal	40-VFQFN Exposed Pad	8	125 °C	-40 °C		Surface Mount	5.5 V	4.5 V	Voltage - Buffered	5.5 V	4.5 V	DSP SPI	0.5 LSB
Texas Instruments DAC61408RHAT	40-VQFN (6x6)	12 bits	R-2R	12 µs	Internal	40-VFQFN Exposed Pad	8	125 °C	-40 °C		Surface Mount	5.5 V	4.5 V	Voltage - Buffered	5.5 V	4.5 V	DSP SPI	0.5 LSB

Catalog

8-channel 12-bit high-voltage output DAC with integrated internal reference

Key Features

• PerformanceSpecified Monotonic at 16-Bit ResolutionINL: ±1 LSB Maximum at 16-Bit ResolutionTUE: ±0.1% of FSR MaximumIntegrated 2.5-V Precision Internal ReferenceInitial Accuracy: ±2.5 mV MaximumLow Drift: 5 ppm/˚C TypicalFlexible Output ConfigurationOutput Range: ±2.5 V, ±5 V, ±10 V, ±20 V0 to 5 V, 0 to 10 V, 0 to 20 V, 0 to 40 VDifferential Output ModeHigh Drive Capability: ±25 mA with 1.5 V from Supply RailsThree Dedicated A-B Toggle Pins for Dither Signal GenerationAnalog Temperature OutputSensor Gain of –4 mV/˚C50-MHz SPI Compatible Serial Interface4-Wire Mode, 1.7-V to 5.5-V OperationDaisy Chain OperationCRC Error CheckTemperature Range: –40˚C to +125˚CSmall Package6 mm × 6 mm, 40-Pin VQFNPerformanceSpecified Monotonic at 16-Bit ResolutionINL: ±1 LSB Maximum at 16-Bit ResolutionTUE: ±0.1% of FSR MaximumIntegrated 2.5-V Precision Internal ReferenceInitial Accuracy: ±2.5 mV MaximumLow Drift: 5 ppm/˚C TypicalFlexible Output ConfigurationOutput Range: ±2.5 V, ±5 V, ±10 V, ±20 V0 to 5 V, 0 to 10 V, 0 to 20 V, 0 to 40 VDifferential Output ModeHigh Drive Capability: ±25 mA with 1.5 V from Supply RailsThree Dedicated A-B Toggle Pins for Dither Signal GenerationAnalog Temperature OutputSensor Gain of –4 mV/˚C50-MHz SPI Compatible Serial Interface4-Wire Mode, 1.7-V to 5.5-V OperationDaisy Chain OperationCRC Error CheckTemperature Range: –40˚C to +125˚CSmall Package6 mm × 6 mm, 40-Pin VQFN

Description

The DAC81408, DAC71408, and DAC61408 (DACx1408) are a pin-compatible family of 8-channel, buffered, high-voltage output digital-to-analog converters (DACs) with 16-, 14- and 12-bit resolution. The DACx1408 includes a low drift, 2.5-V internal reference, eliminating the need for an external precision reference in most applications. These devices are specified monotonic and provide high linearity of ±1 LSB INL. A user selectable output configuration enables full-scale bipolar output voltages: ±20 V, ±10 V, ±5 V or ±2.5 V and full-scale unipolar output voltages: 40 V, 20 V, 10 V or 5 V. The full-scale output range for each DAC channel is independently programmable. The integrated DAC output buffers can sink or source up to 25 mA thus limiting the need of additional operational amplifiers. Each pair of channels can be configured to provide a differential output with offset calibration. The three dedicated A-B toggle pins enable dither signal generation with up to three possible frequencies. The DACx1408 incorporates a power-on-reset circuit that connects the DAC outputs to ground at power-up. The outputs remain at this state until the device registers are properly configured for operation. Communication to the DACx1408 is performed through a 4-wire serial interface that supports operation from 1.7 V to 5.5 V. The DAC81408, DAC71408, and DAC61408 (DACx1408) are a pin-compatible family of 8-channel, buffered, high-voltage output digital-to-analog converters (DACs) with 16-, 14- and 12-bit resolution. The DACx1408 includes a low drift, 2.5-V internal reference, eliminating the need for an external precision reference in most applications. These devices are specified monotonic and provide high linearity of ±1 LSB INL. A user selectable output configuration enables full-scale bipolar output voltages: ±20 V, ±10 V, ±5 V or ±2.5 V and full-scale unipolar output voltages: 40 V, 20 V, 10 V or 5 V. The full-scale output range for each DAC channel is independently programmable. The integrated DAC output buffers can sink or source up to 25 mA thus limiting the need of additional operational amplifiers. Each pair of channels can be configured to provide a differential output with offset calibration. The three dedicated A-B toggle pins enable dither signal generation with up to three possible frequencies. The DACx1408 incorporates a power-on-reset circuit that connects the DAC outputs to ground at power-up. The outputs remain at this state until the device registers are properly configured for operation. Communication to the DACx1408 is performed through a 4-wire serial interface that supports operation from 1.7 V to 5.5 V.