ANALOG DEVICES LTC2656IUFD-L12#PBF Digital to Analogue Converter, Rail-to-Rail Output, 12 bit, 4 Wire, Microwire, Serial, SPI

LTC2656IUFD-L12#PBF is an octal, 16bit, rail-to-rail DAC with a precision integrated reference. These DACs have built-in high-performance, rail-to-rail, output buffers and are guaranteed monotonic. The LTC2656-L has a full-scale output of 2.5V with the integrated 10ppm/°C reference and operates from a single 2.7V to 5.5V supply. These DACs can also operate with an external reference, which sets the DAC full-scale output to two times the external reference voltage. These DACs communicate via a SPI/MICROWIRE� compatible 4-wire serial interface which operates at clock rates up to 50MHz. The LTC2656 incorporates a power-on reset circuit controlled by the PORSEL pin. If PORSEL is tied to GND the DACs reset to zero-scale. If PORSEL is tied to VCC, the DACs reset to mid-scale. Applications include mobile communications, process control and industrial automation, instrumentation, automatic test equipment, and automotive.

• Guaranteed monotonic over temperature, integrated reference buffers
• Power-on-reset to zero-scale/mid-scale, asynchronous LDAC update pin
• Differential nonlinearity is ±0.1 LSB typical at (TA = 25°C, VCC = 2.7V to 5.5V)
• Multiplying bandwidth is 150KHz typical at (TA = 25°C, VCC = 2.7V to 5.5V)
• Voltage output slew rate is 1.8V/µs typical at (TA = 25°C, VCC = 2.7V to 5.5V)
• Output voltage noise density is 85nV/?Hz typical at (f = 1KHz, TA = 25°C, VCC = 2.7V to 5.5V)
• Supply current in shutdown mode is 3µA maximum at (VCC = 5V, TA = 25°C)
• Power supply rejection ratio is -80dB typical at (VCC = 3V ±10% or 5V ±10%)
• 2.5V full scale voltage, internal reference mode
• Industrial temperature range from -40°C to 85°C, 20-lead plastic QFN package

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party