AD5025/AD5045/AD5065分别是低功耗、双通道、12/14/16位缓冲电压输出nanoDAC(R) DAC,相对精度特性为±1 LSB INL(积分非线性),具有独立的参考电压引脚,可以采用4.5 V至5.5 V单电源供电。此外还提供±1 LSB的差分精度特性。这些DAC采用多功能三线式、低功耗、施密特触发串行接口,能够以最高50 MHz的时钟速率工作,并与标准SPI(R)、QSPITM、MICROWIRETM、DSP接口标准兼容。基准电压源由外部引脚提供,同时片内集成基准电压缓冲。AD5025/AD5045/AD5065均内置一个上电复位电路,确保DAC输出上电至零电平或中间电平,并保持该电平,直到该器件执行一次有效的写操作为止。这些器件还具有省电特性,在省电模式下,器件在5 V时的典型功耗降至400 nA,并提供软件可选输出负载。可通过串行接口进入省电模式。总非调整误差小于2.5 mV。上电时毛刺非常低。利用LDAC 功能可以同时更新所有DAC的输出,用户也能选择要同时更新的DAC通道。另外还有一个异步 CLR功能,可以将所有DAC清零至软件可选码:0 V、中量程或满量程。这些器件还有一个省电闭锁引脚PDL, 利用该引脚,DAC在任何情况下均无法通过串行接口进入省电模式。
The AD5025/AD5045/AD5065 are low power, dual 12-/14-/16-bit buffered voltage output nanoDAC(R) DACs offering relative accuracy specifications of ±1 LSB INL with individual reference pins, and can operate from a single 4.5 V to 5.5 V supply. The AD5025/ AD5045/AD5065 also offer a differential accuracy specification of ±1 LSB. The parts use a versatile 3-wire, low power Schmitt trigger serial interface that operates at clock rates up to 50 MHz and is compatible with standard SPI(R), QSPITM, MICROWIRETM, and DSP interface standards. The reference for the AD5025/ AD5045/AD5065 are supplied from an external pin and a reference buffer is provided on chip. The AD5025/AD5045/AD5065 incorporate a power-on reset circuit that ensures the DAC output powers up zero scale or midscale and remains there until a validwrite takes place to the device. The AD5025/AD5045/AD5065 contain a power-down feature that reduces the current consumption of the device to typically 400 nA at 5 V and provides software selectable output loads while in power-down mode. The parts are put into power-down mode over the serial interface. Total unadjusted error for the parts is <2.5 mV. The parts exhibit very low glitch on power-up. The outputs of all DACs can be updated simultaneously using the LDAC function, with the added functionality of user-selectable DAC channels to simultaneously update. There is also an asynchronous CLR that clears all DACs to a software-selectable code-0 V, midscale, or full scale. The parts also feature a power-down lockout pin, PDL, which can be used to prevent the DAC from entering power-down under any circumstances over the serial interface.
AD5065 特点
AD5065 建议配套产品 |
AD5065 技术指标
AD5065 亮点
AD5065 应用领域
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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 |
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AD5065ARUZ 产品状态: 量产 | 14 ld TSSOP | 14 | 工业 | Tube, 96 | $ 10.07 | $ 8.56 |
AD5065ARUZ-REEL7 产品状态: 量产 | 14 ld TSSOP | 14 | 工业 | Reel, 1000 | - | $ 8.56 |
AD5065BRUZ 产品状态: 量产 | 14 ld TSSOP | 14 | 工业 | Tube, 96 | $ 11.58 | $ 9.84 |
AD5065BRUZ-REEL7 产品状态: 量产 | 14 ld TSSOP | 14 | 工业 | Reel, 1000 | - | $ 9.84 |