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Partname: | MAX4207ETE |
Description: | +/-2.7 to +/-5.5 V, precision transimpedance logarithmic amplifier with over 5 decades of dynamic range |
Manufacturer: | Maxim Integrated Products |
Package: | QFN |
Pins: | 16 |
Oper. temp.: | -40 to 85 |
Datasheet: | PDF (386K). Click here to download *) |
The MAX4207 logarithmic amplifier computes the log ratio of an input current relative to a reference current (externally or internally generated) and provides a corresponding voltage output with a default -0.25V/decade scale factor. The device operates from dual 2.7V to 5.5V supplies and is capable of measuring five decades of input current across a 10nA to 1mA range. The MAX4207's uncommitted op amp can be used for a variety of functions, including filtering noise, adding offset, and adding additional gain. A 0.5V reference is also included to generate an optional precision current reference using an external resistor, which adjusts the log intercept of the MAX4207. The output-offset voltage and the adjustable scale factor are also set using external resistors. |
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Click here to download MAX4207ETE Datasheet*) |
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