
GeneralDescription
consistsoftwoindependent,highgain,in-
ternally frequency compensated operational amplifiers which
were designed specifically to operate from a single power
supply over a wide range of voltages. Operation from split
power supplies is also possible and the low power supply
current drain is independent of the magnitude of the power
supply voltage.
Application areas include transducer amplifiers, dc gain
blocks and all the conventional op amp circuits which now
can be more easily implemented in single power supply sys-
tems.Forexample,the
ated off of the standard +5V power supply voltage which is
used in digital systems and will easily provide the required
interface electronics without requiring the additional ±15V
power supplies.
Unique Characteristics
nIn the linear mode the input common-mode voltage
range includes ground and the output voltage can also
swing to ground, even though operated from only a
single power supply voltage.
nThe unity gain cross frequency is temperature
compensated.
nThe input bias current is also temperature compensated.
Advantages
nTwo internally compensated op amps
nEliminates need for dual supplies
nAllows direct sensing near GND and V
OUT
also goes to
GND
nCompatible with all forms of logic
nPower drain suitable for battery operation
nPin-out same as LM1558/LM1458 dual op amp
Features
nInternally frequency compensated for unity gain
nLarge dc voltage gain: 100 dB
nWide bandwidth (unity gain): 1 MHz
(temperature compensated)
nWide power supply range:
— Single supply: 3V to 32V
— or dual supplies: ±1.5V to ±16V
nVery low supply current drain (500 µA)—essentially
independent of supply voltage
nLow input offset voltage: 2 mV
nInput common-mode voltage range includes ground
nDifferential input voltage range equal to the power
supply voltage
nLarge output voltage swing: 0V to V
+
− 1.5V
Voltage Controlled Oscillator (VCO)
Wing Shing Computer Components Co., (H.K.)Ltd. Tel:(852)2341 9276 Fax:(852)2797 8153
Homepage: http://www.wingshing.com E-mail: wsccltd@hkstar.com
Dual Operation Amplifiers