• Product Introduction

LTC2641-16

LTC2641-16 - 16-bit Vout DAC in a 3mm x 3mm DFN package

peculiarity

• 纤巧型 3mm x 3mm 8 引脚 DFN 封装
• 16位INL 误差最大值：在整个温度范围内为 ±1LSB
• 低电源电流：120μA
• 在整个温度范围内保证单调
• 低 0.5nV • sec 干扰脉冲
• 2.7V 至 5.5V 单电源操作
• 1μs 的快速稳定时间至 16 位
• 无缓冲电压输出直接驱动 60k 负载
• 50MHz SPI^TM/QSPI^TM/MICROWIRE^TM 兼容型串行接口
• 上电复位将 DAC 输出清至零标度 (LTC2641) 或中间标度 (LTC2642)
• 直接光耦合器接口的施密特触发器 (Schmitt-Trigger) 输入
• 异步 CLR 引脚
• 8 引脚 MSOP、3mm x 3mm DFN 和 8 引脚 SO 封装 (LTC2641) 
• 10 引脚 MSOP 和 3mm x 3mm DFN 封装 (LTC2642)

description

The LTC®2641/LTC2642 is a family of 16, 14, and 12-bit unbuffered voltage output DACs. These DACs operate from a 2.7V to 5.5V single-operating supply and are guaranteed monotonic over the entire temperature range. The LTC2641A-16/LTC2642A-16 provide 16-bit performance ((±1LSB INL and ±1LSB DNL) over the entire temperature range. The unbuffered DAC output produces a low supply current of 120μA and a low offset error of ±1LSB. Both LTC2641 and LTC2642 have a reference input range of 2V to VDD. VOUT swings from 0V to VREF. For bipolar operation, the LTC2642 includes a matching regulator for an external precision op amplifier (e.g., LT1678) and generates a ± VREF output swing on the RFB. The LTC2641/LTC2642 features a simple SPI/MICROWIRE-compatible three-wire serial interface that can operate at clock rates up to 50MHz and can be connected directly to optocouplers for applications that require isolation. When initially powered up, the power-on reset circuit clears the DAC output of LTC2641 to zero scale and the output of LTC2642 DAC to intermediate scale. A logic low level on the CLR pin will asynchronously clear the DAC to either zero scale (LTC2641) or intermediate scale (LTC2642). These DACs are available in both commercial and industrial specifications.

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