Document
NEW PRODUCT
LM358
LOW POWER DUAL OPERATIONAL AMPLIFIERS
Description
Pin Assignments
The LM358 series consists of two independent, high gain, internally 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.
(TOP VIEW)
OUTPUT 1 1 INVERTING INPUT 1 2 NON-INVERTING INPUT 1 3
GND 4
LM358
8 V+ 7 OUTPUT 2 6 INVERTING INPUT 2 5 NON-INVERTING INPUT 2
SOP-8L
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 systems. For example, the LM358 series can be directly operated from the standard +5V power supply voltage which is used in digital systems and will easily provide the required interface electronics without requiring an additional ±15V power supply.
Applications
Features
• Internally frequency compensated for unity gain • Large dc voltage gain: 100 dB • Very low supply current drain (500μA); essentially
independent of supply voltage • Wide bandwidth (unity gain): 1MHz (temperature
compensated) • Input common-mode voltage range includes ground • Differential input voltage range equal to the power supply
voltage • Low input offset voltage: 2mV • Wide power supply range:
o Single supply: 3V to 32V o Dual supplies: ±1.5V to ±16V • Large output voltage swing: 0V to V+ - 1.5V • SOP-8L packaging • “Green” Molding Compound (No Br, Sb) • Lead Free Finish/ RoHS Compliant (Note 1)
• Eliminates the need for dual supplies • Compatible with all forms of logic • Two internally compensated op amps • Low power drain ideal for battery operation • Allows direct sensing near GND • VOUT can swing to GND
Unique Characteristics
• In the linear mode the input common-mode voltage range includes ground and the output voltage can also swing to ground, whilst operating from only a single power supply voltage.
• The unity gain crossing frequency is temperature compensated.
• The input bias current is temperature compensated.
Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html.
LM358
Document number: DS35167 Rev. 2 - 2
1 of 14 www.diodes.com
February 2011
© Diodes Incorporated
NEW PRODUCT VO (Volts)
LM358
LOW POWER DUAL OPERATIONAL AMPLIFIERS
Typical Single-Supply Circuit (V+=5.0VDC)
+V IN
*+
+V O
-
R2 1M
R1 10K
*R not needed due to temperature independent I IN
Non-Inverting DC Gain (0V Output)
R 100 K
+V1
+
+V2
R
R 100K 100 K
VO
R 100 K +V3 +V4
R 100 K
-
R 10 0K
W here: VO=V1+V2-V3-V4 (V1+V2) > (V3+V4) to keep VO > 0 VDC
DC Summing Amplifier (VIN'S > 0 VDC and VO > 0 VDC)
+5V
R2 GAIN=1+
R1
=101(as shown)
VIN (mV)
R1 91 0K
R2
100 K
V+
-
R3
91 K
VO
+VIN
+
RL
VO=0 VDC for VIN .