• Product introduction

LTC2656-16 - Octal, 16-bit, rail-to-rail DAC with 10ppm/ºC maximum reference

peculiarity

• Accurate 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 (LTC2656-L)
• Integrated reference buffer
• Ultra-low crosstalk between DACs (
• Power-on reset to zero scale / middle scale
• Asynchronous LDAC update pins
• Slim 20-pin 4mm × 5mm QFN package and 20-pin thermally enhanced TSSOP package

description

LTC^®The 2656 is an 8-channel 16-bit/12-bit rail-to-rail DAC family with a precise integrated reference. These DACs have built-in high performance, rail-to-rail output buffers and are guaranteed monotonic. The LTC2656-L features a 2.5V full-scale output and integrated 10ppm/ºC reference and operates from a 2.7V to 5.5V supply. The LTC2656-H features a 4.096V full-scale output and 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 DCs go through an spi/microwire^TMCommunication is carried out by a compatible 4-wire serial interface that operates at clock frequencies up to 50MHz. The LTC2656 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. If the PORSEL pin is connected to V_CC, the DAC is reset to the intermediate scale

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