參數(shù)資料
型號: MAX4278EUK-T
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 運動控制電子
英文描述: 330MHz, Gain of !/Gain of @ Closed-Loop Buffers
中文描述: BUFFER AMPLIFIER, PDSO5
封裝: SOT-23, 5 PIN
文件頁數(shù): 7/12頁
文件大小: 201K
代理商: MAX4278EUK-T
_______________Detailed Desc ription
The MAX4178/MAX4278 are ±5V, wide-bandwidth,
fast-settling, closed-loop buffers featuring high slew
rate, high precision, high output current, low noise, and
low differential gain and phase errors. The MAX4178,
with a -3dB bandwidth of 330MHz, is preset for unity volt-
age gain (0dB). The MAX4278 is preset for a voltage gain
of +2 (6dB) and has a 310MHz -3dB bandwidth.
These devices have a unique input stage that com-
bines the benefits of a current-mode-feedback topolo-
gy (high slew rate and low power) with those of a
traditional voltage-feedback topology. This combination
of architectures results in low input offset voltage and
bias current, and high gain precision and power-supply
rejection.
Under short-circuit conditions, the output current is typ-
ically limited to 150mA. This is low enough that a short
to ground of any duration will not cause permanent
damage to the chip. However, a short to either supply
will create double the allowable power dissipation and
may cause permanent damage if allowed to exist for
longer than approximately 10 seconds. The high out-
put-current capability is an advantage in systems that
transmit a signal to several loads. See High-
Performance Video Distribution Amplifier in the
Applications Informationsection.
M
330MHz, Gain of +1/Gain of +2
Closed-Loop Buffers
_______________________________________________________________________________________
7
-50
OUTPUT VOLTAGE SWING
vs. TEMPERATURE
M
TEMPERATURE (C)
O
3.0
2.5
3.5
4.0
-25
0
25
50
75
125
100
R
L
=
R
L
= 100
R
L
= 50
8
-50
INPUT VOLTAGE RANGE
vs. TEMPERATURE
M
TEMPERATURE (C)
I
2.0
3.5
3.0
2.5
1.5
1.0
4.0
4.5
MAX4178
MAX4278
-25
0
25
50
75
125
100
____________________________Typic al Operating Charac teristic s (c ontinued)
(V
CC
= +5V, V
EE
= -5V, R
L
= 100
, C
L
= 0pF, T
A
= +25°C, unless otherwise noted.)
_____________________Pin Desc ription
1
5
2
3
4
Output
Positive Power Supply.
Connect to +5V.
6
7
Negative Power Supply.
Connect to -5V.
4
Input
3
Ground
2
No Connection
1, 5, 8
PIN
OUT
V
CC
V
EE
IN
GND
N.C.
NAME
SOT23
SO/μMAX/DIP
FUNCTION
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