ha2-5002-5 Intersil Corporation, ha2-5002-5 Datasheet - Page 6

• Manufacturer Part Number: ha2-5002-5
• Description: 110mhz, High Slew Rate, High Output Current Buffer
• Manufacturer: Intersil Corporation

larger valued capacitors since the impedance of the
capacitor is dependent on frequency.
It is also recommended that the bypass capacitors be
connected close to the HA-5002 (preferably directly to the
supply pins).
Operation at Reduced Supply Levels
The HA-5002 can operate at supply voltage levels as low as
±5V and lower. Output swing is directly affected as well as
slight reductions in slew rate and bandwidth.
Short Circuit Protection
The output current can be limited by using the following circuit:
R
LIM
=
------------------------- -
I
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
OUTMAX
V+
25
CAN
SOIC
=
PDIP
QUIESCENT POWER DISSIPATION
AT ±15V SUPPLIES
------------------------- -
I
OUTMAX
45
V-
PLCC
6
TEMPERATURE (°C)
65
IN
FIGURE 2. MAXIMUM POWER DISSIPATION vs TEMPERATURE
V
V
1
1
+
-
V+
V-
85
V
I
(CONTINUOUS)
V
R
OUTMAX
R
2
2
+
LIM
LIM
-
OUT
105
= 200mA
HA-5002
125
Capacitive Loading
The HA-5002 will drive large capacitive loads without oscillation
but peak current limits should not be exceeded. Following the
formula I = Cdv/dt implies that the slew rate or the capacitive
load must be controlled to keep peak current below the
maximum or use the current limiting approach as shown. The
HA-5002 can become unstable with small capacitive loads
(50pF) if certain precautions are not taken. Stability is
enhanced by any one of the following: a source resistance in
series with the input of 50Ω to 1kΩ; increasing capacitive load
to 150pF or greater; decreasing C
an output resistor of 10Ω to 50Ω; or adding feedback
capacitance of 50pF or greater. Adding source resistance
generally yields the best results.
Where: T
Device
T
θ
θ
θ
Graph is based on:
A
JC
CS
SA
= Ambient
P
= Junction to Case Thermal Resistance
= Heat Sink to Ambient Thermal Resistance
= Case to Heat Sink Thermal Resistance
DMAX
JMAX
=
------------------------------------------- -
θ
JC
= Maximum Junction Temperature of the
T
JMAX
+
θ
CS
P
DMAX
–
+
T
θ
A
SA
=
LOAD
T
------------------------------- -
JMAX
θ
JA
to 20pF or less; adding
–
T
A
March 8, 2006
FN2921.11