參數(shù)資料
型號(hào)： EL5444CUZ-T7
廠商： INTERSIL CORP
元件分類(lèi)： 音頻／視頻放大
英文描述： 100MHz Single-Supply Rail-to-Rail Amplifiers
中文描述： 1 CHANNEL, VIDEO AMPLIFIER, PDSO16
封裝： ROHS COMPLIANT, QSOP-16
文件頁(yè)數(shù)： 7/20頁(yè)
文件大?。?/td> 945K
代理商： EL5444CUZ-T7
15
EL5144C, EL5146C, EL5244C, EL5246C,
EL5444C
100 MHz Single Supply Rail to Rail Amplifier
EL
5144C,
EL5146
C
,E
L
5244C,
EL
5246C,
EL5444C
Description of Operation and Applications Information
Product Description
The EL5144C series is a family of wide bandwidth, sin-
gle supply, low power, rail-to-rail output, voltage
feedback operational amplifiers. The family includes
single, dual, and quad configurations. The singles and
duals are available with a power down pin to reduce
power to 2.6A typically. All the amplifiers are inter-
nally compensated for closed loop feedback gains of +1
or greater. Larger gains are acceptable but bandwidth
will be reduced according to the familiar Gain-Band-
width Product.
Connected in voltage follower mode and driving a high
impedance load, the EL5144C series has a -3dB band-
width of 100 MHz. Driving a 150
load, they have a
-3dB bandwidth of 60 MHz while maintaining a 200
V/
S slew rate. The input common mode voltage range
includes ground while the output can swing rail to rail.
Power Supply Bypassing and Printed Circuit
Board Layout
As with any high-frequency device, good printed circuit
board layout is necessary for optimum performance.
Ground plane construction is highly recommended.
Lead lengths should be as short as possible. The power
supply pin must be well bypassed to reduce the risk of
oscillation For normal single supply operation, where
the GND pin is connected to the ground plane, a single
4.7
F tantalum capacitor in parallel with a 0.1 F
ceramic capacitor from VS to GND will suffice. This
same capacitor combination should be placed at each
supply pin to ground if split supplies are to be used. In
this case, the GND pin becomes the negative supply rail.
For good AC performance, parasitic capacitance should
be kept to a minimum. Use of wire wound resistors
should be avoided because of their additional series
inductance. Use of sockets, particularly for the SO pack-
age, should be avoided if possible. Sockets add parasitic
inductance and capacitance that can result in compro-
mised performance.
Input, Output, and Supply Voltage Range
The EL5144C series has been designed to operate with a
single supply voltage of 5V. Split supplies can be used
so long as their total range is 5V.
The amplifiers have an input common mode voltage
range that includes the negative supply (GND pin) and
extends to within 1.5V of the positive supply (VS pin).
They are specified over this range.
The output of the EL5144C series amplifiers can swing
rail to rail.
As the load resistance becomes lower in
value, the ability to drive close to each rail is reduced.
However, even with an effective 150
load resistor
connected to a voltage halfway between the supply rails,
the output will swing to within 150mV of either rail.
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