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ANALOG DEVICES MAX4207ETE+

LOG AMP, 0.25, TQFN-16

Date/Lot Code
ANALOG DEVICES MAX4207ETE+
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Manufacturer Part No:
MAX4207ETE+
Newark Part No.:
73Y3965
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Technical Datasheet:
MAX4207ETE+   Datasheet
ECAD / MCAD
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Product Overview

The MAX4207ETE+ is a precision transimpedance logarithmic amplifier with over 5 decades of dynamic range in 16 pin TQFN package. It computes log ratio of an input current relative to a reference current (externally or internally generated) and provides a corresponding voltage output with 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 uncommitted op-amp of MAX4207 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 MAX4207. The output offset voltage and adjustable scale factor are also set using external resistors. The MAX4207 is used in photodiode current monitoring applications.
  • Input amplifiers summing nodes at ground
  • Operating temperature range from -40°C to 85°C
  • Internal 10nA to 10µA reference current source
  • Supply current of 5mA at TA = +25°C
  • Monotonic over 1nA to 1mA range
  • Adjustable output scale factor and adjustable output offset voltage
  • Log conformity error of ±2mV at TA = +25°C
  • Common mode voltage input range from 0V to 0.5V
  • Unity gain bandwidth of 5MHz and slew rate of 12V/µs (LOGV2 BUFFER)
  • Input offset voltage of 0.4mV at TA = +25°C and input bias current of 0.01nA

Applications

Signal Processing, Portable Devices, Medical

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Product Information

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5 Decades

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250mV / Decade

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0

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± 2.7V to ± 5.5V

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0

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0

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-40°C

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85°C

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MSL 1 - Unlimited

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Technical Documents (1)

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