ISL28258FBZ Intersil, ISL28258FBZ Datasheet - Page 14

• Manufacturer Part Number: ISL28258FBZ
• Description: IC OPAMP RRIO PREC 68UA 8-SOIC
• Manufacturer: Intersil

Specifications of ISL28258FBZ

• Amplifier Type: General Purpose
• Number Of Circuits: 2
• Output Type: Rail-to-Rail
• Slew Rate: 0.1 V/µs
• Gain Bandwidth Product: 200kHz
• -3db Bandwidth: 420kHz
• Current - Input Bias: 1pA
• Voltage - Input Offset: 3.1µV
• Current - Supply: 68µA
• Current - Output / Channel: 30mA
• Voltage - Supply, Single/dual (±): 2.4 V ~ 5.5 V, ±1.2 V ~ 2.75 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Power Dissipation
It is possible to exceed the +125°C maximum junction
temperatures under certain load and power-supply
conditions. It is therefore important to calculate the
maximum junction temperature (T
to determine if power supply voltages, load conditions, or
package type need to be modified to remain in the safe
operating area. These parameters are related in Equation 1:
where:
• P
• PD
where:
• T
• θ
• PD
• V
• I
• V
• R
T
PD
JMAX
dissipation of each amplifier in the package (PD
Equation 2:
application
MAX
MAX
JA
MAX
DMAXTOTAL
S
OUTMAX
L
MAX
MAX
= Load resistance
= Supply voltage (Magnitude of V
= Thermal resistance of the package
=
= Maximum supply current of 1 amplifier
=
= Maximum ambient temperature
T
for each amplifier can be calculated using
= Maximum power dissipation of 1 amplifier
2*V
MAX
= Maximum output voltage swing of the
S
+
×
is the sum of the maximum power
(
I
θ
SMAX
JA
xPD
+
MAXTOTAL
(
V
S
14
- V
OUTMAX
JMAX
)
+
) for all applications
and V
)
×
V
--------------------------- -
OUTMAX
-
)
R
L
MAX
ISL28158, ISL28258
(EQ. 1)
(EQ. 2)
)
August 29, 2008
FN6377.3