参数资料
型号: MAX4278EUK+T
厂商: Maxim Integrated Products
文件页数: 10/12页
文件大小: 0K
描述: IC BUFFER CLOSE LOOP SOT23-5
标准包装: 2,500
放大器类型: 缓冲器
电路数: 1
转换速率: 1600 V/µs
-3db带宽: 310MHz
电流 - 输入偏压: 1µA
电压 - 输入偏移: 500µV
电流 - 电源: 8mA
电流 - 输出 / 通道: 100mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SC-74A,SOT-753
供应商设备封装: SOT-23-5
包装: 带卷 (TR)
MAX4178/MAX4278
330MHz, Gain of +1/Gain of +2
Closed-Loop Buffers
________________________________________________________________________________________
7
Detailed Description
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 the High-
Performance Video Distribution Amplifier section.
-50
OUTPUT VOLTAGE SWING
vs. TEMPERATURE
MAX4178/4278-28
TEMPERATURE (C)
OUTPUT
VOLTAGE
SWING
(±V)
3.0
2.5
3.5
4.0
-25
0
25
50
75
125
100
RL =
RL = 100
RL = 50
8
-50
INPUT VOLTAGE RANGE
vs. TEMPERATURE
MAX4178/4278-29
TEMPERATURE (C)
INPUT
VOLTAGE
RANGE
(±V)
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
Typical Operating Characteristics (continued)
(VCC = +5V, VEE = -5V, RL = 100
, CL = 0pF, TA = +25°C, unless otherwise noted.)
Pin Description
1
5
2
3
4
Output
6
Positive Power Supply.
Connect to +5V.
7
Negative Power Supply.
Connect to -5V.
4
Input
3
Ground
2
No Connection
1, 5, 8
PIN
OUT
VCC
VEE
IN
GND
N.C.
NAME
SOT23
SO/MAX/DIP
FUNCTION
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