Description: One of the most challenging selection criteria when selecting an operational amplifier (transport) in a circuit to achieve a particular function is the output current or load driving capability. Most performance parameters that are shipped are typically given in a data manual, performance chart, or application guide. The designer shall comply with the output current and other parameters of the operation to meet the product performance specified in the data manual. Between different device provided by the semiconductor manufacturers, and even the same manufacturer provided by the output current is a big difference between different devices, which makes the design and application of op-amp become more complicated. This article will through some examples to explain how to according to the operational parameters on the performance of the required to design the circuit of driver ability assessment, to help designers to ensure that their choice of products, in all cases have enough load driving ability.
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