LTC2621CDD#PBF

LTC2621 is a 12bit rail-to-rail voltage output DAC. This has built-in high performance output buffers and is guaranteed monotonic. This part establishes new board-density benchmarks for 16bit and 14bit DAC and advance performance standards for output drive and load regulation in single-supply, voltage-output DACs. The parts use a simple SPI/MICROWIRE compatible 3-wire serial interface which can be operated at clock rates up to 50MHz. Daisy-chain capability, hardware CLR (active high) and asynchronous DAC update (LDAC) (active high) pins are included. It incorporates a power-on reset circuit. During power-up, the voltage outputs rise less than 10mV above zero scale until a valid write and update take place. The power-on reset circuit resets the to midscale. The voltage outputs stay at midscale until a valid write and update take place. Application includes mobile communications, process control and industrial automation, instrumentation, automatic test equipment.

• Guaranteed monotonic over temperature, high Rail-to-Rail output drive
• Double-buffered data latches, asynchronous DAC update pin
• 12bits minimum monotonicity (TA = 25°C, REF = 4.096V (VCC = 5V))
• Maximum differential nonlinearity is ±0.5LSB (TA = 25°C, REF = 4.096V (VCC = 5V))
• Typical integral nonlinearity is ±0.8LSB (TA = 25°C, REF = 4.096V (VCC = 5V))
• Typical offset error is ±1.5mV (TA = 25°C, REF = 4.096V (VCC = 5V))
• Typical gain error is ±0.03%FSR (TA = 25°C, REF = 4.096V (VCC = 5V))
• Typical power supply rejection is -80dB (VCC = 5V ±10%, TA = 25°C)
• Positive supply voltage range from 2.5 to 5.5V (TA = 25°C)
• 10 lead plastic DFN package, operating temperature range from 0°C to 70°C

注释

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