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Data Sheet

FULL DATA SHEET (PDF, 424kB) Download   E-Mail

Description

The MAX4206 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 a single +2.7V to +11V supply or 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 MAX4206'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 MAX4206. The output-offset voltage and the adjustable scale factor are also set using external resistors. The MAX4206 is available in a space-saving 16-pin thin QFN package (4mm x 4mm x 0.8mm), and is specified for operation over the -40°C to +85°C extended temperature range.

Key Features		Applications/Uses
+2.7V to +11V Single-Supply Operation ±2.7V to ±5.5V Dual-Supply Operation 5 Decades of Dynamic Range (10nA to 1mA) Monotonic Over a 1nA to 1mA Range 0.25V/Decade Internally Trimmed Output Scale Factor Adjustable Output Scale Factor Adjustable Output Offset Voltage Internal 10nA to 10µ A Reference Current Source 0.5V Input Common-Mode Voltage Small 16-Pin Thin QFN Package (4mm x 4mm x 0.8mm) -40°C to +85°C Operating Temperature Range Evaluation Kit Available		Analog Signal Processing Medical Instrumentation Photodiode Current Monitoring Portable Instrumentation

Application Notes

Application Note 3611: Integrated DC Logarithmic Amplifiers - MAX4206

Evaluation Kits

MAX4206EVKIT

Design Guides

Amplifiers and Sensors (PDF) Fiber (PDF) Communications (PDF)

Reliability Reports

Show FIT data for: MAX4206 Request Reliability Report for: MAX4206

Software/Models

none

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices: 1-4 of 4
MAX4206	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4206ETE			TQFN;16 pin;17 mm² Outline Drawing: 21-0139 (PDF) Land Pattern: 90-0070 (PDF) Use pkgcode/variation: T1644-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4206ETE-T			TQFN;16 pin;17 mm² Outline Drawing: 21-0139 (PDF) Land Pattern: 90-0070 (PDF) Use pkgcode/variation: T1644-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4206ETE+			TQFN;16 pin;17 mm² Outline Drawing: 21-0139 (PDF) Land Pattern: 90-0070 (PDF) Use pkgcode/variation: T1644+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4206ETE+T			TQFN;16 pin;17 mm² Outline Drawing: 21-0139 (PDF) Land Pattern: 90-0070 (PDF) Use pkgcode/variation: T1644+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

Related Products

MAX4207 Precision Transimpedance Logarithmic Amplifier with Over 5 Decades of Dynamic Range

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