OPA2277U/2K5 | Texas Instruments

Operational Amplifier, OPA2277U/2K5, Texas Instruments

The OPA2277U/2K5 precision operational amplifier replaces the industry standard OP-177. The OPA2277U/2K5 device offers improved noise, wider output voltage swing, and is twice as fast with half the quiescent current. Features include ultra-low offset voltage and drift, low bias current, high common-mode rejection, and high power supply rejection. The OPA2277U/2K5 operates from ±2-V to ±18-V supplies with excellent performance. Unlike most op amps that are specified at only one supply voltage, the OPA2277U/2K5 is specified for real-world applications; a single limit applies over the ±5-V (10-V) to ±15-V (30-V) supply range. High performance is maintained as the amplifier swings to the specified limits. Because the initial offset voltage (±20 μV, maximum) is so low, user adjustment is usually not required.

However, the OPA2277U/2K5 provides external trim pins for special applications. The OPA2277U/2K5 is easy to use and free from phase inversion and the overload problems found in some other op amp. This device is unity-gain stable and provides excellent dynamic behavior over a wide range of load conditions. The version features completely independent circuitry for lowest crosstalk and freedom from interaction, even when overdriven or overloaded.

Applications

• Analog input module
• Weigh scale
• Temperature transmitter
• Pressure transmitter
• Data acquisition (DAQ)
• Lab and field instrumentation
• Battery test