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LM258AST
Low Power Dual Operational Amplifiers
Rev 3
July 2005 1/16
LM158-LM258-LM358
LM158A-LM258A-LM358ALow Power Dual Operational Amplifiers Internally frequency compensated Large DC voltage gain: 100dB Wide bandwidth (unity gain): 1.1mHz
(temperature compensated) Very low supply current/op (500µA) essentially
independent of supply voltage Low input bias current: 20nA
(temperature compensated) Low input offset voltage: 2mV Low input offset current: 2nA Input common-mode voltage range includes
ground Differential input voltage range equal to the
power supply voltage Large output voltage swing 0V to (Vcc - 1.5V)
DescriptionThese circuits consist of two independent, high-
gain, internally frequency-compensated which
were designed specifically to operate from a
single power supply over a wide range of voltages.
The low power supply 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 systems. For
example, these circuits can be directly supplied
with the standard +5V which is used in logic
systems and will easily provide the required
interface electronics without requiring any
additional power supply.
In 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.
Pin Connections (top view)
LM158-LM258-LM358-LM158A-LM258A-LM358A2/16
Order Codes
LM158-LM258-LM358-LM158A-LM258A-LM358A Absolute Maximum Ratings3/16
Absolute Maximum Ratings
Table 1. Key parameters and their absolute maximum ratings Power dissipation must be considered to ensure maximum junction temperature (Tj) is not exceeded. Short-circuits from the output to VCC can cause excessive heating if VCC > 15V. The maximum output current
is approximately 40mA independent
of the magnitude of VCC. Destructive dissipation can result from simultaneous short-circuit on all amplifiers. This input current only exists when the voltage at any of the input leads is driven negative. It is due to the
collector-base junction of the input PNP
transistor becoming forward biased and thereby acting as input diodes clamps. In addition to this diode action,
there is also NPN parasitic action on
the IC chip. this transistor action can cause the output voltages of the Op-amps to go to the VCC voltage level
(or to ground for a large overdrive)
for the time duration than an input is driven negative.
This is not destructive and normal output will set up again for input voltage higher than -0.3V. Short-circuits can cause excessive heating. Destructive dissipation can result from simultaneous short-circuit
on all amplifiers Human body model, 100pF discharged through a 1.5kΩ resistor into pin of device. Machine model ESD, a 200pF cap is charged to the specified voltage, then discharged directly into the IC with
no external series resistor (internal resistor < 5Ω), into pin to pin of device.
Typical Application Schematic LM158-LM258-LM358-LM158A-LM258A-LM358A4/16
2 Typical Application Schematic
Figure 1. Schematic diagram (1/2 LM158)
LM158-LM258-LM358-LM158A-LM258A-LM358A Electrical Characteristics5/16
3 Electrical Characteristics
Table 2. Electrical characteristics for VCC + = +5V, VCC- = Ground, Vo = 1.4V, Tamb = +25°C (unless
otherwise specified)
Electrical Characteristics LM158-LM258-LM358-LM158A-LM258A-LM358A6/16 Vo = 1.4V, Rs = 0Ω, 5V < VCC+ < 30V, 0 < Vic < VCC+ - 1.5V The direction of the input current is out of the IC. This current is essentially constant, independent of the state of the output
so no loading change exists on the input lines. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V. The
upper end of the common-mode voltage range is VCC+ - 1.5V, but either or both inputs can go to +32V without damage. Due to the proximity of external components insure that coupling is not originating via stray capacitance between these
external parts. This typically can be detected as this type of capacitance increases at higher frequencies.
Table 2. Electrical characteristics for VCC + = +5V, VCC- = Ground, Vo = 1.4V, Tamb = +25°C (unless
otherwise specified)
LM158-LM258-LM358-LM158A-LM258A-LM358A Electrical Characteristics7/16
Figure 2. Open loop frequency response Figure 3. Large signal frequency response
Figure 4. Voltage follower pulse response Figure 5. Voltage follower pulse response
Figure 6. Input current Figure 7. Output characteristics
Electrical Characteristics LM158-LM258-LM358-LM158A-LM258A-LM358A8/16
Figure 8. Output characteristics Figure 9. Current limiting
Figure 10. Input voltage range Figure 11. Positive supply voltage
Figure 12. Input voltage range Figure 13. Supply current
