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參數資料
| 型號： | DAC2932PFBTG4 |
| 元件分類： | DAC |
| 英文描述： | DUAL 12-BIT 40MSPS DIGITAL TO ANALOG CONVERTER |
| 中文描述： | 雙通道12位40MSPS數模轉換器 |
| 文件頁數： | 1/24頁 |
| 文件大小： | 343K |
| 代理商： | DAC2932PFBTG4 |
SBAS279C AUGUST 2003 REVISED OCTOBER 2004
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 f
OUT
= 5MHz
Low-Current Standby or Full Power-Down
Modes
Internal Reference
Optional External Reference
Adjustable Full-Scale Range: 0.5mA to 2mA
APPLICATIONS
Transmit Channels
I and Q
PC Card Modems: GPRS, CDMA
Wireless Network Cards (NICs)
Signal Synthesis (DDS)
Portable Medical Instumentation
Arbitrary Waveform Generation (AWG)
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
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 25
μ
W.
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 ref-
erence.
The DAC2932 is available in a TQFP-48 package.
ideal
for
portable
and
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www.ti.com
Copyright
20032004, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
相關PDF資料 |
PDF描述 |
|---|---|
| DAC2932 | DUAL 12-BIT 40MSPS DIGITAL TO ANALOG CONVERTER |
| DAC2932PFBR | DUAL 12-BIT 40MSPS DIGITAL TO ANALOG CONVERTER |
| DAC2932PFBT | DUAL 12-BIT 40MSPS DIGITAL TO ANALOG CONVERTER |
| DAC312BR | 12-Bit Digital-to-Analog Converter |
| DAC312GBC | 12-Bit Digital-to-Analog Converter |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DAC-2-CG | 制造商:Thomas & Betts 功能描述: |
| DAC2K5G4 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:20-Bit, Low-Power Digital-to-Analog Converter |
| DAC2KY | 制造商:BB 制造商全稱:BB 功能描述:Dual, 12-Bit, 125MSPS DIGITAL-TO-ANALOG CONVERTER |
| DAC312 | 制造商:AD 制造商全稱:Analog Devices 功能描述:12-Bit High Speed Multiplying D/A Converter |
| DAC312BR | 制造商:Rochester Electronics LLC 功能描述:12-BIT HIGH-SPEED MULTIPL - Bulk |
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