AD7224KRZ-18REEL

AD7224KRZ-18REEL is an LC²MOS 8-bit DAC with an output amplifier. It is a precision 8-bit voltage-output, digital-to-analogue converter, with an output amplifier and double-buffered interface logic on a monolithic CMOS chip. No external trims are required to achieve full specified performance for the part. The double-buffered interface logic consists of two 8-bit registers–an input register and a DAC register. Only the data held in the DAC registers determines the analogue output of the converter. The double buffering allows simultaneous updates in a system containing multiple AD7224s. Both registers may be made transparent under the control of three external lines, (active-low)CS, (active-low)WR, and (active-low)LDAC. With both registers transparent, the active-low RESET line functions like a zero override; a useful function for system calibration cycles. All logic inputs are TTL and CMOS (5 V) level compatible and the control logic is speed-compatible with most 8-bit microprocessors.

• 8-bit CMOS DAC with output amplifiers, operates with single or dual supplies
• Extended temperature range operation, MP-compatible with double buffered input
• Total unadjusted error is ±2LSB maximum at (VDD = 11.4V to 16.5V, VSS = -5V ±10%)
• Relative accuracy is ±1LSB maximum at (VDD = 11.4V to 16.5V, VSS = -5V ±10%)
• Differential nonlinearity is ±1LSB maximum at (VDD = 11.4V to 16.5V, VSS = -5V ±10%)
• Full-scale temperature coefficient is ±20ppm/°C maximum at (VDD = 14V to 16.5V, VREF = +10V)
• Input leakage current is ±1µA maximum at (VIN = 0V or VDD, VDD = 14V to 16.5V, VREF = +10V)
• Voltage output slew rate is 2.5V/µs minimum at (VDD = 11.4V to 16.5V, VSS = -5V ±10%)
• Voltage output settling time is 5µs maximum at (VREF = +10V; settling time to ±1/2LSB)
• Operating temperature range from -40°C to +85°C, 18-lead SOIC 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