參數(shù)資料
型號： AD8337-EVALZ-SS
廠商： Analog Devices Inc
文件頁數(shù)： 17/32頁
文件大?。?/td> 0K
描述： BOARD EVALUATION FOR AD8337 SS
標(biāo)準(zhǔn)包裝： 1
系列： X-AMP®
每 IC 通道數(shù)： 1 - 單
放大器類型： 電壓反饋
輸出類型： 單端
轉(zhuǎn)換速率： 625 V/µs
-3db帶寬： 280MHz
工作溫度： -40°C ~ 85°C
電流供應(yīng)（主 IC）： 18.5mA
電壓 - 電源，單路/雙路(±)： 5 V ~ 10 V
板類型： 完全填充
已供物品： 板
已用 IC / 零件： AD8337
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AD8337
Rev. C | Page 24 of
32
IN
1
8
7
6
5
4
3
2
VOUT
VCOM
INPP
VPOS
GAIN
VNEG
PRAO
INPN
U1
AD8337
TP1
VOUT
GND1 GND2
GND
GND3 GND4
R2
49.9
RVO1
453
RFB2
100
RFB1
100
R4
0
RPO2
453
PRAO
R1
49.9
GAIN
RVO3
0
L1
120nH
L2
120nH
J1
DO NOT INSTALL PARTS IN GRAY
C4
0.1F
+
CG
1nF
R5
100
C3
0.1F
C1
10F
C2
10F
+VS
–VS
+
05
57
5-
18
0
Figure 80. Schematic—AD8337-EVALZ - Noninverting Configuration
IN
1
8
7
6
5
4
3
2
VOUT
VCOM
INPP
VPOS
GAIN
VNEG
PRAO
INPN
TP1
VOUT
R2
49.9
RVO1
453
RFB2
100
RFB1
100
R4
0
RPO2
453
PRAO
R1
49.9
GAIN
RVO3
0
L1
120nH
L2
120nH
J1
DO NOT INSTALL PARTS IN GRAY
C4
0.1F
+
CG
1nF
R5
100
C3
0.1F
C1
10F
C2
10F
+VS
–VS
+
05
57
5-
1
81
U1
AD8337
GND1 GND2
GND
GND3 GND4
Figure 81. Schematic—AD8337-EVALZ-INV Inverting Configuration
CIRCUIT OPTIONS
Part numbers for fully assembled boards are listed in Table 4.
Table 4. AD8337 Evaluation Board Variations
Part Number
Configuration
AD8337-EVALZ
Dual-supply noninverting
AD8337-EVALZ-INV
Dual-supply inverting
AD8337-EVALZ-SS
Single-supply noninverting
Figure 80, Figure 81, and Figure 82 are schematics for the
various circuit configurations. Within limits, the AD8337
preamplifier gain is controlled by Resistor RFB1 and Resistor
RFB2. For simple guidelines applying to the current-feedback
preamplifier, see the Theory of Operation section.
OUTPUT PROTECTION
The AD8337 VGA output stage is specified for driving loads of
500 Ω or greater. To protect the stage from an accidental
overload, a 453 Ω resistor is provided, which when connected to
50 Ω test equipment inputs, enables safe operation. In certain
high load impedance situations, the value of this resistor can be
reduced. However, if load capacitance values greater than
approximately 20 pF are anticipated, such as a BNC cable, the
minimum series resistor value is not to be less than 20 Ω.
An alternate test pin is also provided for direct access to the
output of
the AD8337 VGA. The pin is typically used for a
probe, and a 0 Ω resistor is provided between the test loop and
the output pin. If the test loop is connected to loads ≤500 Ω,
then the 0 Ω resistor is to be changed to an appropriate value.
VOUT
INPP
3
2
1
6
4
7
8
INPN
PRAO
5
ADR391AUJZ-R2
GAIN
VCOM
+VS
1
2
5
4
3
AD8541AR
2
3
4
6
7
VNEG
VPOS
U1
AD8337
L1
120nH FB
GND1
VOUT
GAIN
U2
GND2 GND3 GND4
IN
GND
VIN
VOUT
SHDN
05
57
5-
18
2
C4
0.1F
C9
0.1F
C10
0.1F
C1
10F
10V
+
C3
0.1F
RVO1
453
CG
1nF
RFB1
100
RFB2
100
C5
0.1F
C2
1F
16V
C6
0.1F
R6
100
C7
0.1F
R1
49.9
R4
10k
C8
0.22F
U3
+
Figure 82. Evaluation Board Schematic—Single-Supply Version
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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