se5230 ON Semiconductor, se5230 Datasheet - Page 9

• Manufacturer Part Number: se5230
• Description: Low Voltage Operational Amplifier
• Manufacturer: ON Semiconductor

2.0 V, is above 40 kHz for the maximum bias current setting
and greater than 10 kHz at the minimum bias current setting.
low supply voltages, exclude the commonïmode crossover
point (V
be accomplished by proper bias selection or by using an
inverting amplifier configuration.
the op amp be biased between V
assure that the input signal swing is within the working
commonïmode range of the amplifier. This leads to another
helpful and unique property of the NE5230 that other CMOS
and bipolar low voltage parts cannot achieve. It is the simple
fact that the input commonïmode voltage can go beyond
either the positive or negative supply voltages. This benefit
is made very clear in a nonïinverting voltageïfollower
configuration. This is shown in Figure 5 where the input sine
wave allows an undistorted output sine wave which will
The full output power bandwidth range for V
If extremely low signal distortion (<0.05%) is required at
Most single supply designs necessitate that the inputs to
Figure 5. In a nonïinverting voltageïfollower configuration, the NE5230 will give full railïtoïrail swing.
B1
) from the commonïmode signal range. This can
Other low voltage amplifiers will not because they are limited by their input commonïmode
CC
V+
Vï
and ground. This is to
range and output swing capability.
NE5230, SA5230, SE5230
Vï
V+
Vï
V+
CC
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NE5230
swing less than 100 mV of either supply voltage. Many
competitive parts will show severe clipping caused by input
commonïmode limitations.
configuration offers more freedom for quiescent biasing of
the inputs close to the positive supply rail where similar op
amps would not allow signal processing.
with the NE5230 as with other devices. Since the NE5230
is internallyïcompensated and has a unity gainïbandwidth
of 600 kHz, board layout is not so stringent as for very high
frequency devices such as the NE5205. The output
capability of the NE5230 allows it to drive relatively high
capacitive loads and small resistive loads. The power supply
pins should be decoupled with a lowïpass RC network as
close to the supply pins as possible to eliminate 60 Hz and
other external power line noise, although the power supply
rejection ratio (PSRR) for the part is very high. The pinout
for the NE5230 is the same as the standard single op amp
pinout with the exception of the bias current adjusting pin.
There are not as many considerations when designing
OTHER
PARTS
+
ï
V+
Vï
The
NE5230
in
this