LTC2657-12

• Product Introduction

LTC2657-12

peculiarity

• 集成 10ppm/ºC 最大值基准
• 最大 INL 误差：±4LSB
• 在整个温度范围内保证单调
• 可选择内部或外部基准
• 2.7V 至 5.5V 电源范围 (LTC2657-L)
• 集成基准缓冲器
• DAC 之间的超低串扰 (0.8nV•s)
• 上电复位至零标度/中间标度
• 400kHz I²C 接口
• 纤巧型 20 引脚 4mm x 5mm QFN 封装和 20 引脚耐热性能增强型 TSSOP 封装

• description

  The LTC®2657 is an 8-channel I2C 16-bit / 12-bit rail-to-rail DAC family with an integrated 10ppm/ºC maximum reference. These DACs have built-in high-performance, rail-to-rail output buffers and are guaranteed to be monotonous. The LTC2657-L has a 2.5V full-scale output and integrated reference and is available from a 2.7V to 5.5V single-operation supply. The LTC2657-H features a 4.096V full-scale output and integrated reference and is available from a 4.5V to 5.5V single-operating supply. Each DAC can also operate with an external reference that is responsible for setting the full-scale output to twice the external reference voltage.

  The devices feature a two-wire I2C-compatible serial interface. LTC2657 operates in standard mode (maximum clock frequency of 100kHz) and fast mode (maximum clock frequency of 400kHz). LTC2657 includes a power-on reset circuit controlled by the PORSEL pin. If the PORSEL pin is connected to GND, the DAC is reset to zero scale on power-up. If the PORSEL pin is connected to the VCC, the DAC will be reset to the intermediate scale on power-up.

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