AD7542AD

Product Summary

The AD7542AD is a D/A converter. The functional diagram shows the AD7542 to consist of three 4-bit data registers, a 12-bit DAC register, address decoding logic and a 12-bit CMOSmultiplying DAC. Data is loaded into the data registers in three 4-bit bytes, and subsequently 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 DACregister to beeasily reset to all zeros when powering up the device. The AD7542AD is manufactured using an advanced thin-film on monolithic CMOSfabrication process. Multiplying capability, low power dissipation, +5V operation, small size (l6-pin DIP and 20 terminal surface mount packages) and easy IJ.P interface make the AD7542AD ideal for many instrumentation, industrial control and avionics applications.

Parametrics

AD7542AD absolute maximum ratings : (1) VDD to AGND : 0V, +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) VOUT1, VOUT2 to AGND : -0.3V, VDD +0.3V; (7) VREF to AGND : ±25V; (8) VRFB to AGND : ±25V; (9) Power Dissipation (Package) Plastic To +70℃ : 670mW; (10) Derates above + 70℃ by : 8.3mW/℃; (11) Ceramic To +75℃ : 450mW; (12) Derates above + 75℃ by : 6mW/℃; (13) Operating Temperature Range Commercial (J, K, GK Versions) : -40 to +85℃; (14) Industrial (A, B, GB Versions) : -40 to +85℃; (15) Extended (S, T, GT Versions) : -55 to +125℃; (16) Storage Temperature : -65 to +150℃; (17) Lead Temperature (Soldering, lOsecs) : +300℃.

Features

AD7542AD features: (1)Resolution: 12 Bits; (2)Nonlinearity: ±1/2LSB Tmin to Tmax; (3)Low Gain Drift: 2ppm/℃ typ, 5ppm/℃ max; (4)Microprocessor Compatible; (5)Full 4-Quadrant Multiplication; (6)Fast Interface Timing; (7)Low Power Dissipation: 40mW max; (8)Low Cost; (9)Small Size: 16-pin DIP and 20-Terminal Surface Mount Package; (10)Latch free (Protection Schottky Not Required).

Diagrams