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The DAC2932 is a dual 12-bit, current-output digital-to-analog converter (DAC) designed to combine the features of high dynamic range and very low power consumption. The DAC2932 converter supports update rates of up to 40MSPS. In addition, the DAC2932 features four 12-bit voltage output DACs, which can be used to perform system control functions.
The advanced segmentation architecture of the DAC2932 is optimized to provide a high spurious-free dynamic range (SFDR).
The DAC2932 has a high impedance (> 200k
) differential current output with a nominal range of 2mA and a compliance voltage of up to 0.8V. The differential outputs allow for either a differential or single-ended analog signal interface. The close matching of the current outputs ensures superior dynamic performance in the differential configuration, which can be implemented with a transformer. Using a small geometry CMOS process, the monolithic DAC2932 is designed to operate within a single-supply range of 2.7V to 3.3V. Low power consumption makes it ideal for portable and battery-operated systems. Further optimization by lowering the output current can be realized with the adjustable full-scale option. The full-scale output current can be adjusted over a span of 0.5mA to 2mA.
For noncontinuous operation of the DAC2932, a full power-down mode can reduce the power dissipation to as little as 25µW.
The DAC2932 is designed to operate with a single parallel data port. While it alternates the loading of the input data into separate input latches for both current output DACs (I-DACs), the updating of the analog output signal occurs simultaneously. The DAC2932 integrates a temperature compensated 1.22V bandgap reference. The DAC2932 also allows for additional flexibility of using an external reference.
The DAC2932 is available in a TQFP-48 package.
| Typ | Titel | Datum | ||
|---|---|---|---|---|
| * | Data sheet | Dual, 12-Bit, 40MSPS, Digital-to-Analog Converter datasheet (Rev. D) | 11 Jul 2005 | |
| Application note | Design for a Wideband Differential Transimpedance DAC Output (Rev. A) | 17 Okt 2016 | ||
| Application note | Wideband Complementary Current Output DAC Single-Ended Interface (Rev. A) | 08 Mai 2015 | ||
| Application note | Design for a Wideband Differential Transimpedance DAC Output | 18 Apr 2008 | ||
| EVM User's guide | DAC2932 12-Bit Dual Channel DAC EVM | 13 Jul 2005 |
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This EVM helps users evaluate TI's DAC2932, a dual 12-bit, current-output digital-to-analog converter (DAC) designed to combine the features of high dynamic range and very low power consumption.
The DAC2932 converter supports update rates of up to 40MSPS. In addition, the DAC2932 features four (...)
High-speed digital-to-analog converters (DACs) most often use a (...)
| Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
|---|---|---|
| TQFP (PFB) | 48 | Ultra Librarian |
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