參數(shù)資料
型號(hào)： EVB-SHM12
廠商： Electronic Theatre Controls, Inc.
元件分類(lèi)： 運(yùn)動(dòng)控制電子
英文描述： Ultra-Fast, 12-Bit Linear Monolithic Sample-Hold Amplifiers
中文描述： 超快速，12位線性單片采樣保持放大器
文件頁(yè)數(shù)： 3/6頁(yè)
文件大?。?/td> 153K
代理商： EVB-SHM12
S HM-12
GROUNDING AND LAYOUT
Obtaining fully specified performance from the SHM-12 requires
careful attention to pc-board layout and power supply decoupling.
For optimal performance, tie all grounds directly to a large ana-
log ground plane beneath and around the package. Bypass all
power supplies to ground with 10μF tantalum capacitors in paral-
lel with 0.1μF ceramic capacitors.
–5V SUPPLY
–5V SUPPLY
–5V SUPPLY
INPUT
SAMPLE / HOLD
+5V SUPPLY
EXTERNAL HOLD
CAPACITOR
GROUND
+5V SUPPLY
OUTPUT
+5V SUPPLY
ANALOG
INPUT
ANALOG
OUTPUT
HOLD
SAMPLE
SHM-12
50
+
0.1μF
10μF
0.1μF
–5V
0.1μF
0.1μF
+5V
0.1μF
10μF
0.1μF
SAMPLE / HOLD
C
HOLD
–5V SUPPLY
–5V SUPPLY
–5V SUPPLY
+5V SUPPLY
50
50
R
Load
100
Refer to Table 1 for optional
HOLD capacitor value.
1
2
Pin 3 is not connected;
do not connect pins 6 and 8.
4
5
7
9
10
11
15
12
13
14, 16
17
18
19
20
0.1μF
SAMPLE
HOLD
SAMPLE
HOLD
ANALOG
INPUT
ANALOG
OUTPUT
-0.8 V
-1.8 V
-0.8 V
-1.8 V
+1 V
-1 V
+1 V
-1 V
Acquisition
Time to
±0.024%
Track-to-hold Settling
to ±0.024%
15ns typ.
7ns typ.
15ns typ.
7ns typ.
Feedthrough -80dB
HOLD
SAMPLE
Figure 2. SHM-12 Simplified Connection Diagram
Locate the bypass capacitors as close to the unit as possible.
For best performance, controlled impedance transmission line
techniques, such as microstrip, should be used. Mount all com-
ponents as close to the required pins as possible. It is strongly
recommended that the SHM-12 not be socket-mounted.
Figure 3. SHM-12 Control and Timing
3
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