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AD534SCHIPS Fiches technique(PDF) 8 Page - Analog Devices

No de pièce AD534SCHIPS
Description  Internally Trimmed Precision IC Multiplier
Download  12 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD534SCHIPS Fiches technique(HTML) 8 Page - Analog Devices

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AD534–Applications Section
–8–
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.
X1
X2
Y1
Y2
Z1
Z2
AD534
OUTPUT =
A2 – B2
10V
OUT
–VS
+VS
SF
+15V
–15V
A – B
2
A
B
A + B
2
30k
10k
Figure 8. Difference-of-Squares
X1
X2
Y1
Y2
Z1
Z2
AD534
OUTPUT,
12V PK
=
EC ES
0.1V
OUT
–VS
+VS
SF
+15V
–15V
SIGNAL INPUT,
ES, 5V PK
39k
1k
0.005 F
–VS
CONTROL INPUT,
EC, ZERO TO 5V
SET
GAIN
1k
2k
NOTES:
1) GAIN IS X 10 PER-VOLT OF EC, ZERO TO X 50
2) WIDEBAND (10Hz – 30kHz) OUTPUT NOISE IS 3mV RMS, TYP
CORRESPONDING TO A.F.S. S/N RATIO OF 70dB
3) NOISE REFERRED TO SIGNAL INPUT, WITH EC = 5V, IS 60 V RMS, TYP
4) BANDWITH IS DC TO 20kHz, –3dB, INDEPENDENT OF GAIN
Figure 9. Voltage-Controlled Amplifier
X1
X2
Y1
Y2
Z1
Z2
AD534
OUTPUT = (10V) sin
OUT
–VS
+VS
SF
+15V
–15V
4.7k
4.3k
18k
10k
USING CLOSE TOLERANCE RESISTORS AND AD534L, ACCURACY
OF FIT IS WITHIN
0.5% AT ALL POINTS.
IS IN RADIANS.
INPUT, E
0 TO +10V
WHERE
=
E
2
10V
3k
Figure 10. Sine-Function Generator
X1
X2
Y1
Y2
Z1
Z2
OUTPUT = 1
EC sin t
10V
EM
OUT
–VS
+VS
SF
+15V
–15V
THE SF PIN OR A Z-ATTENUATOR CAN BE USED TO PROVIDE OVERALL
SIGNAL AMPLIFICATION, OPERATION FROM A SINGLE SUPPLY POSSIBLE;
BIAS Y2 TO VS/2.
CARRIER
INPUT
EC sin t
MODULATION
INPUT,
EM
AD534
Figure 11. Linear AM Modulator
9k
1k
X1
X2
Y1
Y2
Z2
Z1
AD534
OUTPUT = (100V)
B
A – B
(1% PER VOLT)
OUT
–VS
+VS
SF
+15V
–15V
OTHER SCALES, FROM 10% PER VOLT TO 0.1% PER VOLT
CAN BE OBTAINED BY ALTERING THE FEEDBACK RATIO.
B INPUT
(+VE ONLY)
A INPUT
( )
Figure 12. Percentage Computer
X1
X2
Y1
Y2
Z1
Z2
OUTPUT,
5V/PK
= (10V)
1 + y
y
(10V)
Y
WHERE y =
OUT
–VS
+VS
SF
+15V
–15V
INPUT, Y
10V FS
AD534
Figure 13. Bridge-Linearization Function


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