AD7524 データシートの表示（PDF） - Analog Devices

部品番号

コンポーネント説明

メーカー

AD7524

CMOS 8-Bit Buffered Multiplying DAC

Analog Devices 

ANALOG CIRCUIT CONNECTIONS

AD7524

AD7524

AD7524

Figure 4. Unipolar Binary Operation

(2-Quadrant Multiplication)

Table I. Unipolar Binary Code Table

Digital Input

MSB LSB

Analog Output

1111 1111

1000 0001

1000 0000

0111 1111

0000 0001

0000 0000

–VREF (255/256)

–VREF (129/256)

–VREF (128/256) = –VREF/2

–VREF (127/256)

–VREF (1/256)

–VREF (0/256) = 0

Note: 1 LSB = (2–8)(VREF) = 1/256 (VREF)

MICROPROCESSOR INTERFACE

Figure 5. Bipolar (4-Quadrant) Operation

Table II. Bipolar (Offset Binary) Code Table

Digital Input

MSB LSB

Analog Output

1111 1111

1000 0001

1000 0000

0111 1111

0000 0001

0000 0000

Note: 1 LSB = (2–7)(VREF) = 1/128 (VREF)

+VREF (127/128)

+VREF (1/128 )

0

–VREF (1/128)

–VREF (127/128)

–VREF (128/128)

Figure 6. AD7524/8085A Interface

Figure 7. AD7524/MC6800 Interface

REV. B

–5–

Share Link: