參數(shù)資料
型號: LT1191CN8#PBF
廠商: Linear Technology
文件頁數(shù): 2/12頁
文件大?。?/td> 0K
描述: IC OP-AMP VIDEO HI-SPD SNGL 8DIP
標(biāo)準(zhǔn)包裝: 50
應(yīng)用: 通用
電路數(shù): 1
轉(zhuǎn)換速率: 450 V/µs
電流 - 電源: 32mA
電流 - 輸出 / 通道: 50mA
電壓 - 電源,單路/雙路(±): 4.75 V ~ 16 V,±2.38 V ~ 8 V
安裝類型: 通孔
封裝/外殼: 8-DIP(0.300",7.62mm)
供應(yīng)商設(shè)備封裝: 8-PDIP
包裝: 管件
10
LT1191
U
S
A
O
PPLICATI
WU
U
I FOR ATIO
An Unterminated Cable Is
A 1X Scope Probe Is a
A Scope Probe on the Inverting
a Large Capacitive Load
Large Capacitive Load
Input Reduces Phase Margin
Murphy Circuits
LT1191 TA13
COAX
5V
–5V
4
2
7
3
6
2
5V
7
–5V
4
3
6
SCOPE
PROBE
2
5V
7
–5V
4
3
6
1X SCOPE
PROBE
+
LT1191
+
LT1191
+
LT1191
The ability to maintain shutoff is shown on the curve
Shutdown Supply Current vs Temperature in the Typical
Performance Characteristics section. At very high
elevated temperatures it is important to hold the SHDN
pin close to the negative supply to keep the supply current
from increasing.
Murphy Circuits
There are several precautions the user should take when
using the LT1191 in order to realize its full capability.
Although the LT1191 can drive a 30pF load, isolating the
capacitance with 10
can be helpful. Precautions prima-
rily have to do with driving large capacitive loads.
Other precautions include:
1. Use a ground plane (see Design Note 50, High Fre-
quency Amplifier Evaluation Board).
2. Do not use high source impedances. The input
capacitance of 2pF and RS = 10k, for instance, will give
an 8MHz – 3dB bandwidth.
3. PC board socket may reduce stability.
4. A feedback resistor of 1k or lower reduces the effects
of stray capacitance at the inverting input. (For in-
stance, closed-loop gain of 2 can use RFB = 300 and
RG = 300.)
Driving Capacitive Load
LT1191 TA11
AV = –1, IN DEMO BOARD, CL = 30pF
LT1191 TA12
AV = –1, IN DEMO BOARD, CL = 30pF
WITH 10
ISOLATING RESISTOR
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