The objective is to design a high-input impedance, high-dynamic range, signal-conditioning front-end. An example application for such a front-end circuit is the receive signal chain in an ultrasonic-based end equipment (EE) such as fish finders, printers and flow meters. Table 9-2 lists the design requirements for this application.
|Amplifier supply||±2.5 V|
|Input signal frequency||200 kHz|
|Minimum voltage||300 µVrms|
|Minimum SNR at 300 µVrms||40 dB|