AD7524 Analog Devices, AD7524 Datasheet - Page 5

• Manufacturer Part Number: AD7524
• Description: CMOS 8-Bit Buffered Multiplying DAC
• Manufacturer: Analog Devices

Specifications of AD7524

• Resolution (bits): 8bit
• Dac Update Rate: 4MSPS
• Dac Settling Time: 250ns
• Max Pos Supply (v): +15V
• Single-supply: Yes
• Dac Type: Current Out
• Dac Input Format: Par

REV. B
ANALOG CIRCUIT CONNECTIONS
Digital Input
MSB
1111 1111
1000 0001
1000 0000
0111 1111
0000 0001
0000 0000
Note: 1 LSB = (2
MICROPROCESSOR INTERFACE
Figure 4. Unipolar Binary Operation
(2-Quadrant Multiplication)
LSB
Table I. Unipolar Binary Code Table
Figure 6. AD7524/8085A Interface
–8
)(V
REF
) = 1/256 (V
AD7524
Analog Output
–V
–V
–V
–V
–V
–V
REF
REF
REF
REF
REF
REF
REF
)
(255/256)
(128/256) = –V
(127/256)
(1/256)
(0/256) = 0
(129/256)
REF
/2
–5–
Digital Input
MSB
1111 1111
1000 0001
1000 0000
0111 1111
0000 0001
0000 0000
Note: 1 LSB = (2
Table II. Bipolar (Offset Binary) Code Table
LSB
Figure 5. Bipolar (4-Quadrant) Operation
Figure 7. AD7524/MC6800 Interface
–7
)(V
AD7524
REF
) = 1/128 (V
REF
)
Analog Output
+V
+V
0
–V
–V
–V
REF
REF
REF
REF
REF
AD7524
(1/128)
(127/128)
(128/128)
(127/128)
(1/128 )