• Product introduction

LTC2655B-16

LTC2655 - 具10ppm/ºC 最大值基准的四通道、I2C、16 位 / 12 位、轨至轨 DAC

peculiarity

• Integrated 10ppm/ºC maximum reference
• Maximum INL error: ±4LSB (at 16 bits)
• Monotony is guaranteed over the entire temperature range
• Selectable internal or external references
• 2.7V to 5.5V Supply Range (LTC2655-L)
• Integrated reference buffer
• Ultra-low crosstalk between DACs (
• Power-on reset to zero/midscale
• Asynchronous DAC update pins
• Tiny 20-pin 4mm × 4mm QFN package and 16-pin narrow SSOP package

description

LTC^®The 2655 is a 4-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 monotonic. The LTC2655-L features a 2.5V full-scale output and integrated reference and operates from a single 2.7V to 5.5V supply. The LTC2655-H has a full-scale output of 4.096V and an integrated reference and operates from a single 4.5V to 5.5V supply. Each DAC can also operate with an external reference that sets the DAC full-scale output to twice the external reference voltage.

These devices feature a 2-wire I2C-compatible serial interface. The LTC2655 operates in standard mode (maximum clock frequency of 100kHz) and fast mode (maximum clock frequency of 400kHz). The LTC2655 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 at power-up. If the PORSEL pin is connected to V_CC, the DAC will be reset to the midscale at power-up.

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