Product Overview

Product Overview
SE5230DR2G: Low Voltage Operational Amplifier
For complete documentation, see the data sheet
Product Description
The NE5230 is a very low voltage operational amplifier that can perform with a voltage supply as low as 1.8 V or as high as 15 V. In
addition, split or single supplies can be used, and the output will swing to ground when applying the latter. There is a bias adjusting
pin which controls the supply current required by the device and thereby controls its power consumption. If the part is operated at +/0.9 V supply voltages, the current required is only 110 uA when the current control pin is left open. Even with this low power
consumption, the device obtains a typical unity gain bandwidth of 250 kHz. When the bias adjusting pin is connected to the negative
supply, the unity gain bandwidth is typically 600 kHz while the supply current is increased to 600 uA. In this mode, the part will
supply full power output beyond the audio range.
The NE5230 also has a unique input stage that allows the common?mode input range to go above the positive and below the
negative supply voltages by 250 mV. This provides for the largest possible input voltages for low voltage applications. The part is
also internally?compensated to reduce external component count.
The NE5230 has a low input bias current of typically +/-40 nA, and a large open?loop gain of 125 dB. These two specifications are
beneficial when using the device in transducer applications. The large open?loop gain gives very accurate signal processing
because of the large "excess" loop gain in a closed?loop system.
The output stage is a class AB type that can swing to within 100 mV of the supply voltages for the largest dynamic range that is
needed in many applications. The NE5230 is ideal for portable audio equipment and remote transducers because of its low power
consumption, unity gain bandwidth, and 30 nV//Hz noise specification.
Works Down to 1.8 V Supply Voltages
Adjustable Supply Current
Low Noise
Common?mode Includes Both Rails
VOUT Within 100 mV of Both Rails
Remote Transducer Amplifier
Rail?to?Rail Comparators
Half?wave Rectification without Diodes
Remote Temperature Transducer with 4.0 to 20 mA Output
End Products
• Portable Precision Instruments
• Portable Audio Equipment
For more information please contact your local sales support at
Created on: 6/30/2016