DAC60504 Texas instruments

DAC60504

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DAC60504

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Описание

The DAC80504, DAC70504, and DAC60504 (DACx0504) are a pin-compatible family of low-power, four-channel, buffered voltage-output, digital-to-analog converters (DACs) with 16-, 14-, and 12-bit resolution. The DACx0504 includes a low drift, 2.5-V internal reference, eliminating the need for an external precision reference in most applications. A user-selectable gain configuration provides full-scale output voltages of 1.25 V (gain = ½), 2.5 V (gain = 1), or 5 V (gain = 2). These devices operate from a single 2.7-V to 5.5-V supply, are specified monotonic, and provide high linearity of ±1 LSB INL.Communication to the DACx0504 is performed through a 4-wire serial interface that operates at clock rates of up to 50 MHz. The VIO pin enables serial interface operation from 1.7 V to 5.5 V. The DACx0504 flexible interface enables operation with a wide range of industry-standard microprocessors and microcontrollers.The DACx0504 incorporate a power-on-reset circuit that powers up and maintains the DAC outputs at either zero scale or midscale until a valid code is written to the device. These device consume a low current of 0.7 mA/channel at 5.5 V, making these devices an excellent choice for battery-operated equipment. A per-channel power-down feature reduces the device current consumption to 15 µA.The DACx0504 is characterized for operation over the temperature range of –40°C to +125°C, and is available in a small, 3-mm × 3-mm QFN package.

Performance
- INL: ±1 LSB Maximum at 16-Bit Resolution
- TUE: ±0.1% of FSR Maximum
Integrated 2.5 V Precision Internal Reference
- Initial Accuracy: ±5 mV, Maximum
- Low Drift: 2 ppm/°C Typical
High Drive Capability: 20 mA With 0.5 V From Supply Rails
Flexible Output Configuration
- User Selectable Gain: 2, 1 or ½
- Reset to Zero Scale or Midscale
Wide Operating Range
- Power Supply: 2.7 V to 5.5 V
- Temperature: –40˚C to +125˚C
50-MHz, SPI-Compatible Serial Interface
- 4-Wire Mode, 1.7 V to 5.5 V Operation
- Daisy-Chain Operation
- CRC Error Check
Low Power: 0.7 mA/Channel at 5.5 V
Small Package: 3-mm × 3-mm, 16-Pin WQFN

Resolution (Bits)	12
Number of DAC channels	4
Interface type	SPI
Output type	Buffered Voltage
Settling time (µs)	2
Features	Reset to Mid-Scale
Reference type	Ext, Int
Architecture	R-2R
Rating	Catalog
Output range (max) (mA/V)	5
Output range (min) (mA/V)	0
Power consumption (typ) (mW)	17
Operating temperature range (°C)	-40 to 125