概览
优势和特点
- +2.5 V to +5.5 V Supply Operation
- 50 MHz Serial Interface
- 10 MHz Multiplying Bandwidth
- 2.5 MSPS update rate
- ±10 V reference input
- Low glitch energy < 2 nV-s
- Pin Compatible 8- (AD5426), 10- (AD5432) Current Output DACs
- Guaranteed Monotonic
- Four Quadrant Multiplication
- Power On reset with brownout detection
- Daisy Chain Mode
- Readback Function
- 0.4 μA typical power consumption
- Pin Compatible 12-Bit (AD5443) Current Output DACs
产品详情
The AD5426 / AD5432 / AD5443 are CMOS 8-, 10-, and 12-bit current output digital-to-analog converters (DACs), respectively. These devices operate from a 2.5 V to 5.5 V power supply, making them suitable for battery-powered applications and many other applications.
These DACs use a double buffered, 3-wire serial interface that is compatible with SPI, QSPI™, MICROWIRE™, and most DSP interface standards. In addition, a serial data out pin (SDO) allows for daisy-chaining when multiple packages are used. Data readback allows the user to read the contents of the DAC register via the SDO pin. On power-up, the internal shift register and latches are filled with 0s and the DAC outputs are at zero scale.
As a result of manufacturing on a CMOS submicron process, the parts offer excellent 4-quadrant multiplication characteristics with large signal multiplying bandwidths of 10 MHz. The applied external reference input voltage, VREF, determines the full-scale output current. An integrated feedback resistor, RFB, provides temperature tracking and full-scale voltage output when combined with an external current to voltage precision amplifier.
The AD5426 / AD5432 / AD5443 DACs are available in small, 10-lead MSOP packages.
The EVAL-AD5443SDZ / EVAL-AD5446SDZ / EVAL-AD5453SDZ evaluation board is available for evaluating DAC performance. For more information, see the UG-327 evaluation board user guide.
APPLICATIONS
- Portable battery-powered applications
- Waveform generators
- Instrumentation
- Programmable amplifiers and attenuators
- Digitally controlled calibration
- Programmable filters and oscillators
- Composite video
- Ultrasound
- Gain, offset, and voltage trimming
产品生命周期
量产
该产品系列中至少有一个型号已量产并可供采购。该产品适合用于新设计，但也可能有更新的替代产品。
参考资料
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AN-1496: Unipolar, Precision, DC Digital-to-Analog Conversion Using the AD5426/AD5432/AD5443 8-Bit to12-Bit DACs (Rev. B)11/29/2017
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AN-1498: Programmable Gain Element Using the AD5426/AD5432/AD5443 Current Output DACs (Rev. B)11/17/2017
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AN-1497: Precision, Bipolar Configuration for the AD5426/AD5432/AD5443 8-Bit to 12-Bit DACs (Rev. B)11/17/2017
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AN-1231: AC Signal Processing Using the AD5426/AD5432/AD5443 Current Output DACs (Rev. B)5/8/2013
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Multiplying DACs Flexible Building Blocks11/30/2015
软件代码及系统需求
工具及仿真模型
精密DAC误差预算工具
精密DAC误差预算工具是一种Web应用程序，用于计算精密DAC信号链的直流精度。它可显示整个信号链中的静态误差状况，以快速评估设计利弊。可计算由基准电压源、运算放大器和精密DAC引起的直流误差。
设计资源
ADI始终把满足您可靠性水平的产品放在首要位置。我们通过在所有产品、工艺设计和制造过程中引入高质量和可靠性检查实践这一承诺。发运的产品实现“零缺陷”始终是我们的目标。
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| AD5426YRMZ | 材料声明 | 质量和可靠性 | 10-Lead MSOP | |
| AD5426YRMZ-REEL | 材料声明 | 质量和可靠性 | 10-Lead MSOP | |
| AD5426YRMZ-REEL7 | 材料声明 | 质量和可靠性 | 10-Lead MSOP | |
| Wafer Fabrication Data |
PCN-PDN信息
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