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Part Number: DAC2932
Description: The DAC2932 is a dual 12-bit, current-output digital-to-analog converter (DAC) designed to combine the...
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DAC2932
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DataSheet
General Description
DAC2932 General Description
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 25W.
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.
DAC2932 Maximum Ratings
+VA to AGND .......................................................−0.3 to +4 V
+VD to DGND ......................................................−0.3 to +4 V
AGND to DGND .................................................−0.2 to +0.2 V
+VA to +VD ......................................................−0.7 to +0.7 V
CLK, PD, STBY, CS to DGND........................ −0.3 to VD + 0.3 V
D0−D11 to DGND .......................................−0.3 to VD + 0.3 V
IOUT, IOUT to AGND ...................................−0.5 to VA + 0.3 V
REFV to AGNDV .........................................−0.3 to VAV + 0.3 V
GSET, REFIN, FSA to AGND ..........................−0.3 to VA + 0.3 V
VOUTx to AGNDV ......................................−0.3 to VAV + 0.3 V
DIN to DGNDV ...........................................−0.3 to VDV + 0.3 V
Junction temperature ................................................+150 °C
Case temperature .....................................................+100 °C
Storage temperature range ...........................−40 to +150 °C
+VD to DGND ......................................................−0.3 to +4 V
AGND to DGND .................................................−0.2 to +0.2 V
+VA to +VD ......................................................−0.7 to +0.7 V
CLK, PD, STBY, CS to DGND........................ −0.3 to VD + 0.3 V
D0−D11 to DGND .......................................−0.3 to VD + 0.3 V
IOUT, IOUT to AGND ...................................−0.5 to VA + 0.3 V
REFV to AGNDV .........................................−0.3 to VAV + 0.3 V
GSET, REFIN, FSA to AGND ..........................−0.3 to VA + 0.3 V
VOUTx to AGNDV ......................................−0.3 to VAV + 0.3 V
DIN to DGNDV ...........................................−0.3 to VDV + 0.3 V
Junction temperature ................................................+150 °C
Case temperature .....................................................+100 °C
Storage temperature range ...........................−40 to +150 °C
DAC2932 Features
Dual, 12-Bit, 40MSPS Current Output DAC
Four 12-Bit Voltage Output DACs-for Transmit Control
Single +3V Operation
Very Low Power: 29mW
High SFDR: 75dB at fOUT = 5MHz
Low-Current Standby or Full Power-Down Modes
Internal Reference
Optional External Reference
Adjustable Full-Scale Range: 0.5mA to 2mA
Four 12-Bit Voltage Output DACs-for Transmit Control
Single +3V Operation
Very Low Power: 29mW
High SFDR: 75dB at fOUT = 5MHz
Low-Current Standby or Full Power-Down Modes
Internal Reference
Optional External Reference
Adjustable Full-Scale Range: 0.5mA to 2mA
DAC2932 Typical Application
Transmit Channels
− I and Q
− PC Card Modems: GPRS, CDMA
− Wireless Network Cards (NICs)
Signal Synthesis (DDS)
Portable Medical Instumentation
Arbitrary Waveform Generation (AWG)
− I and Q
− PC Card Modems: GPRS, CDMA
− Wireless Network Cards (NICs)
Signal Synthesis (DDS)
Portable Medical Instumentation
Arbitrary Waveform Generation (AWG)
DAC2932
PDF/DataSheet Download
- Datasheet: DAC2932
- File Size: 351729 KB
- Manufacturer: BURR-BROWN [Burr-Brown Corporation]
- Click here to Download
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