参数资料
型号: TSH112
厂商: 意法半导体
英文描述: WIDE BAND, LOW NOISE OPERATIONAL AMPLIFIERS
中文描述: 宽带,低噪声运算放大器
文件页数: 15/19页
文件大小: 424K
代理商: TSH112
TSH110-TSH111-TSH112-TSH113-TSH114
15/19
The amplifier must be biased with a mid supply
(nominaly +Vcc/2), in order to maintain the DC
component of the signal at this value. Several op-
tions are possible to provide this bias supply (such
as a virtual ground using an operational amplifier),
or a two-resistance divider which is the cheapest
solution. A high resistance value is required to lim-
it the current consumption. On the other hand, the
current must be high enough to bias the non-in-
verting input of the amplifier. If we consider this
bias current (5
μ
A) as the 1% of the current
through the resistance divider (500
μ
A) to keep a
stable mid supply, two 5k
resistances can be
used.
The input provides a high pass filter with a break
frequency below 10Hz which is necessary to re-
move the original 0 volt DC component of the input
signal, and to hold it at 2.5V.
Video Multiplexing using the TSH113
(fig.35):
Circuit for switching 3 video signals with the tri-
ple TSH113.
Assuming a low level active onto the disable pins
(1,2,3) as described on page 7 of the datasheet,
any operator can be disable/enable independent-
ly. The two disabled operators will be in standby
mode featuring a high ouput impedance with a
high input/output isolation and a low quiescent
current.
(fig.36):
Typical output response in standby mode on/off
(fig.37):
Typical output response in standby mode off/on
+
_
680
IN1
R
fb,
680
C
fb,
2pF
TSH113
+
_
680
IN2
75
OUT
75
R
fb,
680
C
fb,
2pF
TSH113
+
_
680
IN3
R
fb,
680
C
fb,
2pF
TSH113
cable
ENABLE1
ENABLE2
ENABLE3
R
G
R
G
Common
R
G
75
100ns /div.
Output
Signal
+2.4V
-2.4V
Output
0
Disabled
Standby
Enabled
10μs /div.
Signal
+2.4V
-2.4V
Output
Output
0
Standby
Disabled
Enabled
相关PDF资料
PDF描述
TSH111ID Multiconductor Cable; Number of Conductors:2; Conductor Size AWG:16; No. Strands x Strand Size:19 x 29; Jacket Material:Polyvinylchloride (PVC); Features:Unshielded; Leaded Process Compatible:Yes; Voltage Nom.:150V RoHS Compliant: Yes
TSH113ID Hook-Up Wire; Conductor Size AWG:16; No. Strands x Strand Size:19 x 28; Jacket Color:Red; Approval Bodies:UL, CSA; Approval Categories:UL AWM Style 1061; CSA AWM; Conductor Material:Copper; Jacket Material:Polyvinylchloride (PVC) RoHS Compliant: Yes
TSH110 WIDE BAND, LOW NOISE OPERATIONAL AMPLIFIERS
TSH110ILT WIDE BAND, LOW NOISE OPERATIONAL AMPLIFIERS
TSH111 WIDE BAND, LOW NOISE OPERATIONAL AMPLIFIERS
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