AD7533_01 데이터 시트보기 (PDF) - Intersil
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AD7533_01 Datasheet PDF : 9 Pages
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AD7523, AD7533
DIGITAL
INPUT
MAGNITUDE
BITS
SIGN BIT
±10V
BIPOLAR
ANALOG INPUT
V+
VREF
MSB
LSB
15 14
4
16
AD7533 1
13 3
2
GND
RFEEDBACK
OUT1
-
OUT2 6
+
10K
10K
-
5K 6
+
1/2 IH5140
FIGURE 4. 10-BIT AND SIGN MULTIPLYING DAC
VOUT
DIGITAL FREQUENCY
CONTROL WORD
CALIBRATE
10K
6.8V
(2)
+15V
VDD NC
MSB
LSB
15 14 16
4
AD7523/
AD7533 1
13 3 2
OUT1
OUT2
1K
-
A26
+
10K 1%
4.7K
10K 1%
SQUARE
WAVE
C1
-
6A1
+
TRIANGULAR
WAVE
FIGURE 5. PROGRAMMABLE FUNCTION GENERATOR
+15V
VIN
RFB
OUT2
OUT1
16
14
2
4
AD7523/
AD7533
1
11
3
15
BIT 1
MSB
LSB
DIGITAL
INPUT
“D”
BIT 8 (10) (AD7533)
VREF
-
6
VOUT
+
VOUT = -VIN/D
Where:
D = B----2-i--t-1---1-- + B----2-i--t-2---2-- + … B----2-i--t-2---8--
0 ≤ D ≤ 22----55---56--
FIGURE 6. DIVIDER (DIGITALLY CONTROLLED GAIN)
VREF
+15V
BIT 1
15 14 16
MSB 4
DIGITAL
INPUT
AD7523/
AD7533 1
-
“D” LSB
6
13 3 2
+
BIT 8
(10) (AD7533)
R1
-
6
+
R2
VOUT
VOUT
=
VREF
R-----1---R--+--2---R----2--
–
R-----1R-----1+----D-R----2--
Where D = B---2--i-t-1--1-- + B---2--i-t-2--2-- + … B---2--i-t-8--8--
0 ≤ D ≤ 22----55---56--
FIGURE 7. MODIFIED SCALE FACTOR AND OFFSET
7
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