ISL28272FAZ Intersil, ISL28272FAZ Datasheet - Page 13
![IC INSTR AMP RRIO SGL 16-QSOP](/photos/15/59/155958/16-qsop_sml.jpg)
ISL28272FAZ
Manufacturer Part Number
ISL28272FAZ
Description
IC INSTR AMP RRIO SGL 16-QSOP
Manufacturer
Intersil
Datasheet
1.ISL28271INEVAL1Z.pdf
(14 pages)
Specifications of ISL28272FAZ
Amplifier Type
Instrumentation
Number Of Circuits
2
Output Type
Rail-to-Rail
Slew Rate
0.5 V/µs
-3db Bandwidth
100kHz
Current - Input Bias
10pA
Voltage - Input Offset
35µV
Current - Supply
120µA
Current - Output / Channel
31mA
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
16-QSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Gain Bandwidth Product
-
Unused Channels
The ISL28271 and ISL28272 are Dual channel op amps. If
the application only requires one channel when using the
ISL28271 or ISL28272, the user must configure the unused
channel to prevent it from oscillating. The unused channel
will oscillate if the input and output pins are floating. This will
result in higher than expected supply currents and possible
noise injection into the channel being used. The proper way
to prevent this oscillation is to configure the feedback pins
(FB+, FB-) with the minimum gain stable values for the
amplifier with R
terminals to ground (as shown in Figure 40).
FIGURE 40. PREVENTING OSCILLATIONS IN UNUSED
CHANNELS
F
RG
and R
FB+
FB-
IN+
IN-
G
+
+
-
resistors and tieing the input
-
13
RF
ISL28271, ISL28272
August 17, 2007
FN6390.2