LM258P Integrated Circuit Chip LOW POWER DUAL OPERATIONAL AMPLIFIERS
electronics ic chip
,integrated circuit components
LM158,A
LM258,A
LM358,A
LOW 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)
DESCRIPTION
These 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.
Inthe 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)
SCHEMATIC DIAGRAM (1/2 LM158)
ABSOLUTE MAXIMUM RATINGS
| Symbol | Parameter | LM158,A | LM258,A | LM358,A | Unit |
|---|---|---|---|---|---|
| VCC | Supply voltage | +/-16 or 32 | V | ||
| VI | Input Voltage | -0.3 to +32 | V | ||
| Vid | Differential Input Voltage | +32 | V | ||
| Ptot | Power Dissipation 1) | 500 | mW | ||
| Output Short-circuit Duration 2) | Infinite | ||||
| Iin | Input Current 3) | 50 | mA | ||
| Toper | Opearting Free-air Temperature Range | -55 to +125 | -40 to +105 | 0 to +70 | °C |
| Tstg | Storage Temperature Range | -65 to +150 | °C | ||
1. Power dissipation must be considered to ensure maximum junction temperature (Tj) is not exceeded.
2. 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.
3. 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.
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