AD534 Analog Devices, AD534 Datasheet - Page 8

• Manufacturer Part Number: AD534
• Description: Internally Trimmed Precision IC Multiplier
• Manufacturer: Analog Devices

AD534–Applications Section
The versatility of the AD534 allows the creative designer to
implement a variety of circuits such as wattmeters, frequency
doublers and automatic gain controls to name but a few.
0 TO +10V
INPUT, E
NOTES:
E
–V
CONTROL INPUT,
C
S
SIGNAL INPUT,
4) BANDWITH IS DC TO 20kHz, –3dB, INDEPENDENT OF GAIN
, ZERO TO
1) GAIN IS X 10 PER-VOLT OF E
2) WIDEBAND (10Hz – 30kHz) OUTPUT NOISE IS 3mV RMS, TYP
3) NOISE REFERRED TO SIGNAL INPUT, WITH E
USING CLOSE TOLERANCE RESISTORS AND AD534L, ACCURACY
OF FIT IS WITHIN
B
10k
A
CORRESPONDING TO A.F.S. S/N RATIO OF 70dB
E
S
GAIN
1k
SET
,
Figure 9. Voltage-Controlled Amplifier
5V PK
Figure 10. Sine-Function Generator
A – B
A + B
Figure 8. Difference-of-Squares
5V
2
2
18k
2k
SF
X
X
Y
Y
0.5% AT ALL POINTS.
1
2
X
X
SF
1
2
Y
Y
AD534
SF
X
X
Y
Y
1
2
1
2
AD534
1
2
1
2
AD534
OUT
+V
–V
OUT
Z
Z
+V
–V
OUT
C
1
2
+V
–V
Z
S
S
Z
, ZERO TO X 50
Z
Z
2
S
1
S
2
S
1
S
+15V
–15V
–15V
+15V
4.3k
–15V
4.7k
+15V
10k
39k
1k
30k
IS IN RADIANS.
C
3k
=
OUTPUT =
0.005 F
5V, IS 60 V RMS, TYP
OUTPUT = (10V) sin
WHERE
OUTPUT,
=
E
0.1V
C
A
E
2
10V
S
– B
=
12V PK
2
2
10V
E
–8–
MODULATION
THE SF PIN OR A Z-ATTENUATOR CAN BE USED TO PROVIDE OVERALL
SIGNAL AMPLIFICATION, OPERATION FROM A SINGLE SUPPLY POSSIBLE;
BIAS Y
(+V
INPUT, Y
CARRIER
INPUT,
E
C
B INPUT
E
INPUT
sin
ONLY)
2
TO V
t
OTHER SCALES, FROM 10% PER VOLT TO 0.1% PER VOLT
CAN BE OBTAINED BY ALTERING THE FEEDBACK RATIO.
Figure 13. Bridge-Linearization Function
1k
E
9k
10V FS
M
S
/2.
Figure 11. Linear AM Modulator
Figure 12. Percentage Computer
SF
X
X
Y
Y
SF
X
X
Y
Y
1
2
1
2
1
2
1
2
AD534
AD534
SF
X
X
Y
Y
1
2
1
2
OUT
AD534
+V
–V
OUT
+V
–V
Z
Z
Z
Z
1
2
S
S
1
S
2
S
OUT
+V
–V
+15V
–15V
+15V
Z
Z
–15V
S
S
1
2
+15V
–15V
OUTPUT = 1
OUTPUT = (100V)
(1% PER VOLT)
A INPUT
( )
OUTPUT,
= (10V)
WHERE y =
10V
E
M
1 + y
E
y
C
5V/PK
sin
(10V)
A – B
Y
B
t