поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

AD526BD датащи(PDF) 8 Page - Analog Devices

номер детали AD526BD
подробное описание детали  Software Programmable Gain Amplifier
Download  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD526BD датащи(HTML) 8 Page - Analog Devices

Back Button AD526BD Datasheet HTML 4Page - Analog Devices AD526BD Datasheet HTML 5Page - Analog Devices AD526BD Datasheet HTML 6Page - Analog Devices AD526BD Datasheet HTML 7Page - Analog Devices AD526BD Datasheet HTML 8Page - Analog Devices AD526BD Datasheet HTML 9Page - Analog Devices AD526BD Datasheet HTML 10Page - Analog Devices AD526BD Datasheet HTML 11Page - Analog Devices AD526BD Datasheet HTML 12Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 14 page
background image
AD526
REV. D
–8–
THEORY OF OPERATION
The AD526 is a complete software programmable gain amplifier
(SPGA) implemented monolithically with a drift-trimmed
BiFET amplifier, a laser wafer trimmed resistor network, JFET
analog switches and TTL compatible gain code latches.
A particular gain is selected by applying the appropriate gain
code (see Table I) to the control logic. The control logic turns
on the JFET switch that connects the correct tap on the gain
network to the inverting input of the amplifier; all unselected
JFET gain switches are off (open). The “on” resistance of the
gain switches causes negligible gain error since only the
amplifier’s input bias current, which is less than 150 pA, actu-
ally flows through these switches.
The AD526 is capable of storing the gain code, (latched mode),
B, A0, A1, A2, under the direction of control inputs
CLK and
CS. Alternatively, the AD526 can respond directly to gain code
changes if the control inputs are tied low (transparent mode).
For gains of 8 and 16, a fraction of the frequency compensation
capacitance (C1 in Figure 32) is automatically switched out of
the circuit. This increases the amplifier’s bandwidth and im-
proves its signal settling time and slew rate.
AMPLIFIER
+VS
VIN
N1
N2
C1
C2
OUT
FORCE
OUT
SENSE
–VS
A0
A1
A2
B
CLK
CS
DIGITAL
GND
L
A
T
C
H
E
S
C
O
N
T
R
O
L
L
O
G
I
C
G = 8
G = 16
ANALOG
GND2
ANALOG
GND1
1k
1.7k
G = 2
G = 4
1.7k
3.4k
1k
14k
RESISTOR
NETWORK
Figure 32. Simplified Schematic of the AD526
TRANSPARENT MODE OF OPERATION
In the transparent mode of operation, the AD526 will respond
directly to level changes at the gain code inputs (A0, A1, A2) if
B is tied high and both
CS and CLK are allowed to float low.
After the gain codes are changed, the AD526’s output voltage
typically requires 5.5
µs to settle to within 0.01% of the final
value. Figures 26 to 29 show the performance of the AD526 for
positive gain code changes.
16
15
14
13
12
11
10
9
12
34
56
78
+
OUT
FORCE
OUT
SENSE
VOUT
0.1 F
AD526
16
84
21
GAIN NETWORK
A1
A0
CS CLK
A2
B
LOGIC AND LATCHES
–VS
0.1 F
+VS
+5V
A2
A1
A0
VIN
Figure 33. Transparent Mode
LATCHED MODE OF OPERATION
The latched mode of operation is shown in Figure 34. When
either
CS or CLK go to a Logic “1,” the gain code (A0, A1, A2,
B) signals are latched into the registers and held until both
CS
and
CLK return to “0.” Unused CS or CLK inputs should be tied
to ground . The
CS and CLK inputs are functionally and electri-
cally equivalent.
OUT
FORCE
OUT
SENSE
VOUT
0.1 F
–VS
0.1 F
+VS
+5V
A2
A1
A0
VIN
TIMING SIGNAL
16
15
14
13
12
11
10
9
12
34
56
78
+
AD526
16
84
21
GAIN NETWORK
A1
A0
CS CLK
A2
B
LOGIC AND LATCHES
Figure 34. Latched Mode


Аналогичный номер детали - AD526BD

производительномер деталидатащиподробное описание детали
logo
Analog Devices
AD526BD AD-AD526BD Datasheet
464Kb / 14P
   Software Programmable Gain Amplifier
REV. D
AD526BD AD-AD526BD Datasheet
447Kb / 14P
   Software Programmable Gain Amplifier
REV. D
AD526BD AD-AD526BD Datasheet
560Kb / 15P
   Software Programmable Gain Amplifier
AD526BD AD-AD526BD Datasheet
498Kb / 15P
   Software Programmable Gain Amplifier
More results

Аналогичное описание - AD526BD

производительномер деталидатащиподробное описание детали
logo
Analog Devices
AD526 AD-AD526_15 Datasheet
466Kb / 14P
   Software Programmable Gain Amplifier
REV. D
AD526JNZ AD-AD526JNZ Datasheet
447Kb / 14P
   Software Programmable Gain Amplifier
REV. D
AD526 AD-AD526_16 Datasheet
560Kb / 15P
   Software Programmable Gain Amplifier
AD526 AD-AD526_17 Datasheet
498Kb / 15P
   Software Programmable Gain Amplifier
AD526 AD-AD526 Datasheet
464Kb / 14P
   Software Programmable Gain Amplifier
REV. D
logo
Texas Instruments
PGA103 TI1-PGA103_09 Datasheet
134Kb / 9P
[Old version datasheet]   Programmable Gain AMPLIFIER
logo
ANADIGICS, Inc
ARA2017 ANADIGICS-ARA2017 Datasheet
531Kb / 15P
   Programmable Gain Amplifier
logo
Skyworks Solutions Inc.
ARA2017 SKYWORKS-ARA2017 Datasheet
1Mb / 15P
   Programmable Gain Amplifier
logo
National Semiconductor ...
LMP8100 NSC-LMP8100_08 Datasheet
1Mb / 30P
   Programmable Gain Amplifier
logo
ANADIGICS, Inc
ARA2017 ANADIGICS-ARA2017_12 Datasheet
520Kb / 17P
   Programmable Gain Amplifier
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com