EL5144CW Intersil, EL5144CW Datasheet - Page 19

• Manufacturer Part Number: EL5144CW
• Description: IC AMP VFA SINGLE 100MH SOT23-5
• Manufacturer: Intersil

Specifications of EL5144CW

• Amplifier Type: Voltage Feedback
• Number Of Circuits: 1
• Output Type: Rail-to-Rail
• Slew Rate: 200 V/µs
• Gain Bandwidth Product: 60MHz
• -3db Bandwidth: 100MHz
• Current - Input Bias: 2nA
• Voltage - Input Offset: 25000µV
• Current - Supply: 7mA
• Current - Output / Channel: 120mA
• Voltage - Supply, Single/dual (±): 4.75 V ~ 5.25 V, ±2.38 V ~ 2.63 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Free Running Oscillator Application
Figure 54 is an EL5144 configured as a free running
oscillator. To first order, R
frequency of oscillation according to:
For rail to rail output swings, maximum frequency of
oscillation is around 15MHz. If reduced output swings are
acceptable, 25MHz can be achieved. Figure 55 shows the
oscillator for R
F
F
OSC
OSC
Sele
= 6MHz.
=
-------------------------------------- -
R
OSC
2.4V
3V
V
V
IN
IN
0.72
OSC
PP
PP
×
1
2
470K
470K
C
OSC
= 510Ω, C
1
2
3
1
2
3
4
5
6
7
FIGURE 52.
FIGURE 54.
OSC
EL5246
470K
+
+
-
-
19
OSC
and C
= 240pF and
EL5144, EL5146, EL5244, EL5246, EL5444
5
4
OSC
14
13
12
11
10
9
8
0.1µ
+5V
5V
0V
4.7µ
determine the
0.1µ
150
V
+5V
R
C
OUT
OS
OS
Ω
(EQ. 4)
FIGURE 56.
V
Selec
OUT
V
OUT
5V
0V
5V
0V
5V
0V
FIGURE 53.
FIGURE 55.
March 31, 2011
FN7177.2