LTC1458CG#PBF

LTC1458CG#PBF is a complete single supply, quad rail-to-rail voltage output, 12bit digital-to-analogue converter (DAC). LTC1458 includes an output buffer amplifier with variable gain (×1 or ×2) and an easy-to-use 3-wire cascadable serial interface. The LTC1458 has an onboard reference of 2.048V and a full-scale output of 4.095V in a ×2 gain configuration. It operates from a single 4.5V to 5.5V supply dissipating only 5.5mW (ICC = 1.1mA typ). Excellent DNL, low supply current and a wide range of built-in functions allow these parts to be used in a host of applications when flexibility, power and single supply operation are important. Applications include digital calibration, industrial process control, automatic test equipment, and low-power systems.

• Quad 12bit DAC, buffered true rail-to-rail voltage output
• Schmitt trigger on clock input allows direct optocoupler interface
• Power-on reset and active-low CLR pin, low cost
• 3-wire cascadable serial interface with 250KHz update rate
• Integral nonlinearity is ±1.75LSB typical at (VCC = 4.5V to 5.5V, TA = 25°C)
• Offset error is ±3.0mV typical at (VCC = 4.5V to 5.5V, TA = 25°C)
• Supply current is 1100µA typical at (4.5V ≤ VCC ≤ 5.5V)
• Signal-to-noise + distortion is 85dB typical at (REFHI = 1KHz, 2VP-P, 4.5V ≤ VCC ≤ 5.5V)
• Short-circuit current is 45mA typical at (4.5V ≤ VCC ≤ 5.5V)
• Operating temperature range from 0°C to 70°C, 28-lead plastic SSOP package

附註

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