Analog Devices OP221
The OP221 is a monolithic dual operational amplifier that can be used either in single or dual supply operation. The wide supply voltage range, wide input voltage range, and low supply current drain of the OP221 make 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 provide high performance in instrumentation amplifier designs.| Part No. | OP221 |
|---|---|
| Datasheet | OP221 Download |
| Manufacturer |  Analog Devices |
| Description | Dual Low Power Operational Amplifier |
| Buy | Stock & Price |
FEATURES
Excellent TCVOS Match, 2●V/؇C Max Low Input Offset Voltage, 150
●V Max Low Supply Current, 550
●A Max Single Supply Operation, 5 V to 30 V Low Input Offset Voltage Drift, 0.75
●V/؇C High Open-Loop Gain, 1500 V/mV Min High PSRR, 3
●V/V Wide Common-Mode Voltage Range, V– to within 1.5 V of V+ Pin Compatible with 1458, LM158, LM2904 Available in Die Form Dual Low Power Operational Amplifier, Single or Dual Supply OP221 PIN CONNECTIONS 8-Lead SOIC (S-Suffix) +IN A 1 V– 2 +IN B 3 –IN B 4 8 –IN A 7 OUT A 6 V+ 5 OUT B NC = NO CONNECT
GENERAL DESCRIPTION
The individual amplifiers feature very low input offset voltage, low offset voltage drift, low noise voltage, and low bias current. They are fully compensated and protected. Matching between channels is provided on all critical parameters including input offset voltage, tracking of offset voltage vs. temperature, non-inverting bias currents, and common-mode rejection. SIMPLIFIED SCHEMATIC Q3 Q4 –IN Q1 +IN Q2 Q7 Q6 Q5 NULL* Q11 Q12 Q9 Q10 Q4 Q13 *ACCESSIBLE IN CHIP FORM ONLY V+ Q28 Q26 Q27 OUTPUT Q29 Q33 V– REV.
