SNOSBT5D – APRIL 1998 – REVISED MARCH 2013
lm392-N Low Power Operational Amplifier/Voltage Comparator
Check for Samples:
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FEATURES
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Wide Power Supply Voltage Range
– Single Supply: 3V to 32V
– Dual Supply: ±1.5V to ±16V
Low Supply Current Drain—Essentially
Independent of Supply Voltage: 600
μA
Low Input Biasing Current: 50 nA
Low Input Offset Voltage: 2 mV
Low Input Offset Current: 5 nA
Input Common-Mode Voltage Range Includes
Ground
Differential Input Voltage Range Equal to the
Power Supply Voltage
ADDITIONAL OP AMP FEATURES
– Internally Frequency Compensated for
Unity Gain
– Large DC Voltage Gain: 100 dB
– Wide Bandwidth (Unity Gain): 1 MHz
– Large Output Voltage Swing: 0V to V
+
−
1.5V
ADDITIONAL COMPARATOR FEATURES
– Low Output Saturation Voltage: 250 mV at 4
mA
– Output Voltage Compatible with all Types
of Logic Systems
DESCRIPTION
The lm392-N series consists of 2 independent
building block circuits. One is a high gain, internally
frequency compensated operational amplifier, and the
other is a precision voltage comparator. Both the
operational amplifier and the voltage comparator
have been specifically designed to operate from a
single power supply over a wide range of voltages.
Both circuits have input stages which will common-
mode input down to ground when operating from a
single power supply. Operation from split power
supplies is also possible and the low power supply
current is independent of the magnitude of the supply
voltage.
Application areas include transducer amplifier with
pulse shaper, DC gain block with level detector, VCO,
as well as all conventional operational amplifier or
voltage comparator circuits. Both circuits can be
operated directly from the standard 5 V
DC
power
supply voltage used in digital systems, and the output
of the comparator will interface directly with either
TTL or CMOS logic. In addition, the low power drain
makes the lm392-N extremely useful in the design of
portable equipment.
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ADVANTAGES
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Eliminates Need for Dual Power Supplies
An Internally Compensated Op Amp and a
Precision Comparator in the Same Package
Allows Sensing at or Near Ground
Power Drain Suitable for Battery Operation
Pin-Out is the Same as Both the LM358 Dual
Op Amp and the LM393 Dual Comparator
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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Copyright © 1998–2013, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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