AD5732:完整的双通道、14位、串行输入、单极性/双极性、电压输出DAC

AD5732: 完整的双通道、14位、串行输入、单极性/双极性、电压输出DAC

AD5732 功能框图 AD5722/AD5732/AD5752分别是双通道、12/14/16位、串行输入、电压输出数模转换器(DAC)，采用+4.5 V至+16.5 V单电源或±4.5 V至±16.5 V双电源供电。标称满量程输出范围可通过软件选择，选项有+5 V、+10 V、+10.8 V、±5 V、±10 V和±10.8 V。同时还内置输出放大器、基准电压缓冲器以及专有上电/省电控制电路。这些器件可保证单调性，最大积分非线性(INL)误差为±16 LSB，噪声很低，典型建立时间为10 μs。AD5722/AD5732/AD5752采用串行接口，能够以最高30 MHz的时钟速率工作，并且与DSP和微控制器接口标准兼容。利用双缓冲，所有DAC可实现同时更新。对于双极性输出，输入编码方式为用户可选的二进制补码或偏移二进制（取决于BIN/2sComp引脚的状态）；对于单极性输出，输入编码方式为标准二进制。利用异步清零功能，可将所有DAC寄存器清零至用户可选的零电平或中量程输出。这些器件均采用24引脚TSSOP封装，额定温度范围为−40°C至+85°C工业温度范围。AD5722/AD5732/AD5752与AD5724/AD5734/AD5754引脚兼容，后者是完整的四通道、12/14/16位、串行输入、单极性/双极性电压输出DAC。

The AD5722/AD5732/AD5752 are dual, 12-/14-/16-bit, serial input, voltage output, digital-to-analog converters. They operate from single-supply voltages from +4.5 V up to +16.5 V or dual-supply voltages from ±4.5 V up to ±16.5 V. Nominal full-scale output range is software-selectable from +5 V, +10 V, +10.8 V, ±5 V, ±10 V, or ±10.8 V. Integrated output amplifiers, reference buffers, and proprietary power-up/power-down control circuitry are also provided.The parts offer guaranteed monotonicity, integral nonlinearity (INL) of ±16 LSB maximum, low noise, and 10 μs typical settling time.The AD5722/AD5732/AD5752 use a serial interface that operates at clock rates up to 30 MHz and are compatible with DSP and microcontroller interface standards. Double buffering allows the simultaneous updating of all DACs. The input coding is user-selectable twos complement or offset binary for a bipolar output (depending on the state of Pin BIN/2sComp), and straight binary for a unipolar output. The asynchronous clear function clears all DAC registers to a user-selectable zero-scale or midscale output. The parts are available in a 24-lead TSSOP and offer guaranteed specifications over the −40°C to +85°C industrial temperature range.The AD5722/AD5732/AD5752 are pin compatible with the AD5724/AD5734/AD5754, which are complete, quad, 12-/14-/ 16-bit, serial input, unipolar/bipolar voltage output DACs

AD5732 特点

完整的双通道、14位数模转换器(DAC)
采用单电源或双电源供电
软件可编程输出范围：
+5 V, +10 V, +10.8 V, ±5 V, ±10 V, ±10.8 V
积分非线性(INL)误差：±16 LSB（最大值）；微分非线性(DNL)误差：±1 LSB（最大值）
总非调整误差(TUE)：0.1% FSR（最大值）
建立时间：10 μs（典型值）
集成基准电压缓冲
欲了解更多特性，请参考数据手册

AD5732 技术指标

Resolution (Bits): 14bit
DAC Update Rate: 1MSPS
DAC Settling Time: 10µs
Positive Supply (max): +16.5V
Single-Supply: Yes
DAC Type: Voltage Out
DAC Input Format: Ser,SPI

AD5732 应用领域

工业自动化
闭环伺服控制、过程控制
汽车测试与测量
可编程逻辑控制器

AD5732 芯片订购指南

产品型号	封装	引脚	温度范围	包装和数量	报价*(100-499)	报价*1000 pcs
AD5732AREZ 产品状态: 量产	24 ld TSSOP-EP(EP=3.2mm)	24	待定	Tube, 62	$ 6.71	$ 5.50
AD5732AREZ-REEL7 产品状态: 量产	24 ld TSSOP-EP(EP=3.2mm)	24	待定	Reel, 1000	-	$ 5.50