OP221 is a low power dual operational amplifier that can be used with a single or dual power supply. The OP221 has a wide supply voltage range, wide input voltage range and low supply current drain, making it well-suited for operation from batteries or unregulated power supplies. The excellent specifications of the individual amplifiers combined with the tight matching and temperature tracking between channels make the OP221 a very suitable amplifier for battery or unregulated power supply operation.
The document describes the OP221 as a monolithic dual operational amplifier suitable for use in either single or dual supply configurations. Key features include excellent temperature coefficient of input offset voltage match, maximum low input offset voltage, and maximum low supply current, making it ideal for battery or unregulated power supply applications.
The datasheet provides comprehensive electrical specifications, including input offset voltage, bias currents, common-mode rejection ratio, and power supply rejection ratio. It also includes typical performance characteristics graphs covering open-loop gain, phase margin, slew rate, noise density, and output swing versus frequency and temperature.
| Input Offset Voltage (Max) | 500 mV |
|---|---|
| Supply Current (Typ, ±15V No Load) | 850 mA |
| Supply Voltage Range (Single) | 5 V to 30 V |
| Open-Loop Gain (Min) | 1500 V/mV |
| Package Type | 8-Lead SOIC (S-Suffix) |
Yes, it is pin compatible with the LM158, LM2904, and 1458.
Yes, it supports single or dual supply operation.
The typical value is 500 mV, with a maximum of 700 mV for the OP221G version.