AD641 - 250 MHz Demodulating Logarithmic Amplifier

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Analog Devices

Part number	AD641
Manufacturer	Analog Devices
File Size	371.74 KB
Description	250 MHz Demodulating Logarithmic Amplifier
Datasheet	AD641 Datasheet
Additional preview pages of the AD641 datasheet.

The AD641 is a 250 MHz, demodulating logarithmic amplifier with an accuracy of ± 2.0 dB and 44 dB dynamic range.

The AD641 uses a successive detection architecture to provide an output current that is logarithmically proportional to its input voltage.

Logarithmic Amplifier Performance Usable to 250 MHz 44 dB Dynamic Range ؎2.0 dB Log Conformance 37.5 mV/dB Voltage Output Stable Slope and Intercepts 2.0 nV/√Hz Input Noise Voltage 50 ␮V Input Offset Voltage Low Power ؎5 V Supply Operation 9 mA (+VS), 35 mA (.
VS) Quiescent Current Onboard Resistors Onboard 10؋ Attenuator Dual Polarity Current Outputs Direct Coupled Differential Signal Path.

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Published: Mar 23, 2005 |