AD534T(RevC) Просмотр технического описания (PDF) - Analog Devices
Номер в каталоге
Компоненты Описание
производитель
AD534T Datasheet PDF : 21 Pages
| |||
AD534
APPLICATIONS INFORMATION
The versatility of the AD534 allows the creative designer to implement a variety of circuits such as wattmeters, frequency doublers, and
automatic gain controls.
A
A – B X1
+VS
2
X2
OUT
AD534
SF
Z1
B
A + B Y1
Z2
2
Y2
–VS
+15V
30kΩ
OUTPUT =
A2 – B2
10V
10kΩ
–15V
Figure 20. Difference of Squares
MODULATION
INPUT, ±EM
CARRIER INPUT
EC sin ωt
X1
+VS
X2
OUT
AD534
SF
Z1
Y1
Z2
Y2
–VS
+15V
OUTPUT = 1 ± EM
10V
EC sin ωt
–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.
Figure 23. Linear AM Modulator
CONTROL INPUT,
EC, 0V TO ±5V
SET GAIN
1kΩ
2kΩ
–VS
X1
+VS
X2
OUT
AD534
SF
Z1
+15V
OUTPUT,
±12V
PK =
EC ES
0.1V
39kΩ
1kΩ
0.005µF
SIGNAL INPUT,
ES, ±5V PK
Y1
Z2
Y2
–VS
–15V
NOTES
1. GAIN IS × 10 PER VOLT OF EC, ZERO TO × 50.
2. WIDEBAND (10Hz TO 30kHz) OUTPUT NOISE IS 3mV rms,
TYP CORRESPONDING TO A.F.S. SNR OF 70dB.
3. NOISE REFERRED TO SIGNAL INPUT, WITH EC = ±5V, IS
60µV rms, TYP.
4. BANDWIDTH IS DC TO 20kHz, –3dB, INDEPENDENT OF GAIN.
Figure 21. Voltage-Controlled Amplifier
9kΩ
1kΩ
B INPUT,
(+VE ONLY)
X1
+VS
X2
OUT
AD534
SF
Z1
Y1
Z2
Y2
–VS
+15V
–15V
OUTPUT = (100V) A – B
(1% PER VOLT) B
A INPUT (±)
OTHER SCALES, FROM 10% PER VOLT TO 0.1% PER VOLT
CAN BE OBTAINED BY ALTERING THE FEEDBACK RATIO.
Figure 24. Percentage Computer
10kΩ
INPUT, Eθ
0V TO +10V
X1
+VS
X2
OUT
18kΩ AD534
SF
Z1
Y1
Z2
Y2
–VS
+15V
4.7kΩ
4.3kΩ
OUTPUT = (10V) sin θ
WHERE θ =
π
2
×
Eθ
10V
3kΩ
–15V
USING CLOSE TOLERANCE RESISTORS AND AD543L,
ACCURACY OF FIT IS WITHIN ±0.5% AT ALL POINTS.
θ IS IN RADIANS.
Figure 22. Sine Function Generator
INPUT, Y ±10V FS
X1
+VS
X2
OUT
AD534
SF
Z1
Y1
Z2
Y2
–VS
+15V
–15V
OUTPUT, ±5V/PK =
y
(10V) 1 + y
WHERE y =
Y
(10V)
Figure 25. Bridge Linearization Function
Rev. C | Page 15 of 20
Share Link: 