MAX4178 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX4178 Datasheet PDF : 12 Pages
| |||
330MHz, Gain of +1/Gain of +2
Closed-Loop Buffers
____________________________Typical Operating Characteristics (continued)
(VCC = +5V, VEE = -5V, RL = 100Ω, CL = 0pF, TA = +25°C, unless otherwise noted.)
OUTPUT VOLTAGE SWING
vs. TEMPERATURE
RL =
4.0
3.5
RL = 100Ω
RL = 50Ω
3.0
2.5
-50 -25
0 25 50 75 100 125
TEMPERATURE (˚C)
INPUT VOLTAGE RANGE
vs. TEMPERATURE
4.5
4.0
3.5
MAX4178
3.0
2.5
2.0
1.5
MAX4278
1.0
-50 -25
0 25 50 75 100 125
TEMPERATURE (˚C)
_____________________Pin Description
PIN
SO/µMAX/DIP
1, 5, 8
2
3
4
6
7
SOT23
—
4
3
2
1
5
NAME
FUNCTION
N.C.
GND
IN
VEE
OUT
VCC
No Connection
Ground
Input
Negative Power Supply.
Connect to -5V.
Output
Positive Power Supply.
Connect to +5V.
_______________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 High-
Performance Video Distribution Amplifier in the
Applications Information section.
_______________________________________________________________________________________ 7
|
|
Share Link: 