AD7533_04 Ver la hoja de datos (PDF) - Intersil
Número de pieza
componentes Descripción
Fabricante
AD7533_04 Datasheet PDF : 8 Pages
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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
AD7533 1 OUT1
13 3
OUT2
2
1K
-
A2 6
+
10K 1%
4.7K
10K 1%
SQUARE
WAVE
C1
-
6 A1
+
TRIANGULAR
WAVE
FIGURE 5. PROGRAMMABLE FUNCTION GENERATOR
+15V
VIN
RFB
16
OUT2 2
14
4
OUT1
AD7533
1
13
3
15
BIT 1
MSB
LSB
DIGITAL
INPUT
“D”
BIT 10
VREF
-
6
VOUT
+
VOUT = -VIN/D
Where:
D
=
-B----i--t----1--
21
+
B-----i--t----2--
22
+
…
-B----i--t----8--
22
0
≤
D
≤
22----55---56--
FIGURE 6. DIVIDER (DIGITALLY CONTROLLED GAIN)
VREF
+15V
BIT 1
15 14 16
MSB 4
DIGITAL
INPUT
AD7533 1
-
“D” LSB
6
13 3 2
+
BIT 10
R1
-
6
+
R2
VOUT
VOUT
=
VREF
R-----1---R--+--2---R----2--
–
R-----1R-----1+----D-R----2--
Where D
=
B-----i-t---1--
21
+
B-----i-t---2--
22
+
…
B-----i-t---8--
28
0 ≤ D ≤ 22----55---56--
FIGURE 7. MODIFIED SCALE FACTOR AND OFFSET
6
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