參數(shù)資料
型號: PM7524
廠商: Analog Devices, Inc.
英文描述: CMOS 8-Bit Buffered Multiplying DAC
中文描述: 的CMOS 8位緩沖乘法DAC
文件頁數(shù): 5/8頁
文件大?。?/td> 175K
代理商: PM7524
AD7524
REV. B
–5–
ANALOG CIRCUIT CONNE CT IONS
Figure 4. Unipolar Binary Operation
(2-Quadrant Multiplication)
T able I. Unipolar Binary Code T able
Digital Input
MSB LSB
Analog Output
1111 1111
1000 0001
1000 0000
0111 1111
0000 0001
0000 0000
–V
REF
(255/256)
–V
REF
(129/256)
–V
REF
(128/256) = –V
REF
/2
–V
REF
(127/256)
–V
REF
(1/256)
–V
REF
(0/256) = 0
Note: 1 LSB = (2
–8
)(V
REF
) = 1/256 (V
REF
)
MICROPROCE SSOR INT E RFACE
Figure 6. AD7524/8085A Interface
Figure 5. Bipolar (4-Quadrant) Operation
T able II. Bipolar (Offset Binary) Code T able
Digital Input
MSB LSB
Analog Output
1111 1111
1000 0001
1000 0000
0111 1111
0000 0001
0000 0000
+V
REF
(127/128)
+V
REF
(1/128 )
0
–V
REF
(1/128)
–V
REF
(127/128)
–V
REF
(128/128)
Note: 1 LSB = (2
–7
)(V
REF
) = 1/128 (V
REF
)
Figure 7. AD7524/MC6800 Interface
AD7524
AD7524
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