MAX4008EUT+T【PDF 1/10 页】IC CURRENT MONITOR 1% SOT23-6

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Sheet目录42

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General Description

The MAX4007/MAX4008 precision, high-side, high-volt-

age current monitors are specifically designed for mon-

itoring photodiode current in fiber applications. They

offer a connection point for the reference current and a

monitor output that produces a signal proportional to

the reference current. The monitor output of the

MAX4007 is a current proportional to the reference cur-

rent. The monitor output of the MAX4008 is a voltage

proportional to the reference current. The current moni-

tors have six decades of dynamic range and monitor

reference currents of 250nA to 2.5mA with better than

5% accuracy. The photodiode current can be moni-

tored from 10nA to 10mA with reduced accuracy.

The MAX4007/MAX4008 accept a supply voltage of

+2.7V to +76V, suitable for APD or PIN photodiode appli-

cations. Internal current limiting (20mA, typ) protects the

devices against short circuit to ground. A clamp diode

protects the monitor output from overvoltage. Additionally,

these devices feature thermal shutdown if the die temper-

ature reaches +150癈.

The MAX4007/MAX4008 are available in tiny, space-

saving 6-pin SOT23 packages, and operate over the

extended temperature range of -40癈 to +85癈.

Applications

Photodiode Current-Monitoring Systems

Portable Instrumentation

Medical Instrumentation

Laboratory Instrumentation

Consumer Electronics

Current-to-Voltage Conversion

Level Translation

Features

f Wide Reference Current Dynamic Range

Guaranteed 250nA to 2.5mA with 5% Monitor

Accuracy

Extended 10nA to 10mA with 10% Monitor

Accuracy

f Current (MAX4007) or Voltage (MAX4008) Monitor

Outputs

f Reference Current-Limit Protection (20mA, typ)

f Voltage Clamp Protects Subsequent Output

Circuitry

f +2.7V to +76V Wide Voltage Range Operation

f 6-Pin SOT23 Packages

High-Accuracy, 76V, High-Side

Current Monitors in SOT23

________________________________________________________________ Maxim Integrated Products 1

GND

REF

OUT

6 BIAS

5 N.C.

CLAMP

MAX4007

MAX4008

SOT23

TOP VIEW

Pin Configuration

Ordering Information

19-2743; Rev 3; 4/07

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxims website at www.maxim-ic.com.

Typical Operating Circuit appears at end of data sheet.

PART

PIN-PA KA E

T P MARK

PKG

CODE

MAX4 7E T-T 6 SOT23-6

ABNM

U6S-3

MAX4

E T-T

6 SOT23-6

ABNO

U6S-3

Selector Guide

PART

PIN-

PACKAGE

INTERNAL

RESISTOR

TYPICAL

RA Y

AX4 7E T-T 6 SOT23-6

None

AX4

E T-T 6 SOT23-6

10k?/DIV>

Note: All devices are specified over the -40?/SPAN>C to +85?/SPAN>C operating

temperature range.

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