LTC2657-12

• Product introduction

LTC2657-12

peculiarity

• Integrated 10ppm/ºC maximum reference
• Maximum INL error: ±4LSB
• Monotony is guaranteed over the entire temperature range
• You can choose an internal or external reference
• 2.7V to 5.5V Supply Range (LTC2657-L)
• Integrated reference buffer
• Ultra-low crosstalk between DACs (0.8nV•s)
• Power-on reset to zero/midscale
• 400kHz I²C interface
• Slim 20-pin 4mm × 5mm QFN package and 20-pin thermally enhanced TSSOP package

• description

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

  These devices use a 2-wire I²C-compatible serial interface. The LTC2657 operates in standard mode (maximum clock frequency of 100kHz) and fast mode (maximum clock frequency of 400kHz). The 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 at power-up. If the PORSEL pin is connected to V_CC, ЦАП будет сброшен на средний уровень при включении питания.

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