Product Summary

The AD7542AD is a precision 12-bit CMOS multiplying DAC designed for direct interface to 4- or 8-bit microprocessors. The functional diagram shows the AD7542AD to consist of three 4-bit data registers, a 12-bit DAC register, address decoding logic and a 12-bit CMOS multiplying DAC. Data is loaded into the data registers in three 4-bit bytes, and subsequendy transferred to the 12-bit DAC register. All data loading or data transfer operations are identical to the WRITE cycle of a static RAM. A clear input allows the DAC register to be easily reset to all zeros when powering up the device.

Parametrics

AD7542AD absolute maximum ratings: (1)Vdd to AGND: OV, +7V; (2)VDD to DGND: 0V, +7V; (3)AGND to DGND: VDD +0.3V; (4)DGND to AGND: VDD +0.3V; (5)Digital Input Voltage to GND: -0.3V, VDD +0.3V; (6)Vouti> Vqut2 to AGND: -0.3V, VDD +0.3V; (7)Vrbf to AGND: + 25V; (8)Vrfb to AGND: + 25 V; (9)Operating Temperature Range Commercial (J, K, GK Versions): -40℃ to +85℃; (10)Operating Temperature Industrial (A, B, GB Versions): -40℃ to +85℃; (11)Operating Temperature Extended (S, T, GT Versions): - 55℃ to + 125℃; (12)Storage Temperature: -65℃ to + 150℃; (13)Lead Temperature (Soldering, lOsecs): 300℃.


Features

AD7542AD features: (1)Nonlinearity: ± 1/2LSB Tmin to Tmax; (2)Low Gain Drift: 2ppm/℃ typ, 5ppm/℃ max; (3)Microprocessor Compatible; (4)Full 4-Quadrant Multiplication; (5)Fast Interface Timing; (6)Low Power Dissipation: 40mW max; (7)Low Cost; (8)Small Size: 16-pin DIP and 20-Terminal Surface Mount Package Latch Free (Protection Schottky Not Required).

Diagrams

AD7542AD pin connection

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Data Sheet

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Data Sheet

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