Datasheet

AD7533
Rev. C | Page 9 of 12
APPLICATIONS
3
14
1
16
2
15
4
13
AD7533
OP97
OP97
MAGNITUDE
BITS
SIGN BIT
DIGITAL
INPUT
MSB
V
DD
V
REF
I
OUT
1
V
OUT
I
OUT
2
R
FB
GND
BIPOLAR
ANALOG INPUT
±10V
10kΩ
10kΩ
5kΩ
1/2 AD7512DIJN
LSB
01134-012
Figure 13. 10-Bit and Sign Multiplying DAC
3
14
1
16
2
15
4
13
AD7533
OP97
OP97
DIGITAL
FREQUENCY
CONTROL
WORD
MSB
+15V
V
DD
NC
V
REF
I
OUT
1
6.8V
(2)
SQUARE
WAVE
TRIANGULAR
WAVE
I
OUT
2
C
t
GND
CALIBRATE
10V
1kΩ
4.7kΩ
LSB
01134-013
10kΩ
1%
10kΩ
1%
f = N ( )
R
t
= 10kΩ
0 < N ≤ (1 2
10
)
1
8
R
t
C
t
Figure 14. Programmable Function Generator
3
16
2
1
14
15
4
13
AD7533
DIGITAL
INPUT
“D”
BIT 1
BIT 10
MSB
V
REF
I
OUT
2
V
OUT
V
IN
I
OUT
1
R
FB
GND
+15
V
LSB
01134-014
V
OUT
=
D= +
where:
–V
IN
D
0 < D ≤
BIT 1
2
1
BIT 2
2
2
+…
BIT 10
2
10
1023
1024
Figure 15. Divider (Digitally Controlled Gain)
3
14
1
16
2
15
4
13
AD7533
DIGITAL
INPUT
“D”
MSB
+15V
V
REF
–V
REFD
V
OU
T
R
FB
GND
R1
R2
LSB
01134
-
015
BIT 1
BIT 10
V
OUT
= V
REF
= –
D= +
where:
R
2
R
1
+ R
2
0 < D ≤
BIT 1
2
1
BIT 2
2
2
+…
BIT 10
2
10
1023
1024
R
1
D
R
1
+ R
2
I
OUT
1
I
OUT
2
Figure 16. Modified Scale Factor and Offset
3
14
1
16
2
15
4
13
AD7533
AD790
COMPARATOR
DIGITAL
INPUT
(TEST LIMIT)
MSB
+15V
TEST INPUT
(0 TO – V
REF
)
I
OUT
1
FAIL/PASS
TEST
I
OUT
2
GND
V
REF
LSB
01134-016
Figure 17. Digitally Programmable Limit Detector
.