8.1 Application Information

The OPA202, OPA2202, and OPA4202 (OPAx202) are unity-gain stable operational amplifiers with low noise, low input bias current, and low input offset voltage. Applications with noisy or high-impedance power supplies require decoupling capacitors placed close to the device pins. In most cases, 0.1-µF capacitors are adequate. Designers can use the low output impedance and heavy capacitive load drive abilities to interface to modern, fast-acquisition, precision analog-to-digital converters (ADCs) and buffer precision voltage references and drive power supply decoupling capacitors.