MAX4208EVKIT+ Maxim Integrated Products, MAX4208EVKIT+ Datasheet

MAX4208EVKIT+

Manufacturer Part Number

MAX4208EVKIT+

Description

KIT EVAL FOR MAX4208

Manufacturer

Maxim Integrated Products

Datasheets

1.MAX4209EVKIT.pdf (17 pages)

2.MAX4208EVKIT.pdf (6 pages)

Specifications of MAX4208EVKIT+

Channels Per Ic

1 - Single

Amplifier Type

Instrumentation

Output Type

Single-Ended, Rail-to-Rail

Slew Rate

0.08 V/µs

Current - Output / Channel

25mA

Operating Temperature

-40°C ~ 125°C

Current - Supply (main Ic)

1.4mA

Voltage - Supply, Single/dual (±)

2.85 V ~ 5.5 V, ±1.425 V ~ 2.25 V

Board Type

Fully Populated

Utilized Ic / Part

MAX4208, MAX4209

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

-3db Bandwidth

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The MAX4208/MAX4209 ultra-low offset and drift instru-

mentation amplifiers feature exceptional precision specifi-

cations, low power consumption, rail-to-rail output,

excellent gain-bandwidth product, and buffered

REFIN/MODE input in a very small µMAX

These devices use a spread-spectrum, autozeroing

technique that constantly measures and corrects the

input offset, eliminating drift over time and temperature and

the effect of 1/f noise. This technique achieves less than

20µV offset voltage, allows ground-sensing capability, pro-

vides ultra-low CMOS input bias current and increased

common-mode rejection performance.

The MAX4208/MAX4209 provide high-impedance inputs

optimized for small-signal differential voltages (±100mV).

All devices provide a gain-bandwidth product of 750kHz.

The MAX4208 provides an adjustable gain with two

external resistors or unity gain with FB connected to OUT.

The MAX4209 is available with a fixed gain of 100V/V with

±0.03% (typ) accuracy. Both devices include a reference

input (REF) to level-shift the output, allowing for bipolar

signals in single-supply applications. In both devices,

REFIN/MODE is an input to a precision unity-gain buffer,

which sets the REF voltage to level-shift the output. The

internal REF buffer allows the reference to be set by a

simple resistive divider or an ADC reference without any

loading error.

The MAX4208/MAX4209 operate with a 2.85V to 5.5V

single-supply voltage and consume only 750µA

of quiescent current (when the internal buffer is off) and

only 1.4µA in shutdown mode. These amplifiers

also operate with ±2.5V dual supplies with REF

connected to ground and REFIN/MODE to V

The MAX4208/MAX4209 are available in space-saving

8-pin µMAX packages and are specified over the auto-

motive operating temperature range (-40°C to +125°C).

19-0924; Rev 1; 4/09

µMAX is a registered trademark of Maxim Integrated Products, Inc.

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Automotive Transducer Applications

Strain-Gauge Amplifiers

Industrial Process Control

Battery-Powered Medical Equipment

Precision Low-Side Current Sense

Notebook Computers

Differential Voltage Amplification

Instrumentation Amplifiers with REF Buffer

________________________________________________________________ Maxim Integrated Products

General Description

Applications

Ultra-Low Offset/Drift, Precision

package.

♦ Ultra-Low Input Offset Voltage

♦ ±0.25% (max) Gain Error

♦ Low 0.2µV/°C Offset Voltage Drift

♦ 1pA CMOS Input Bias Current

♦ True Ground Sensing with Rail-to-Rail Output

♦ Buffered REF Input for High Accuracy and

♦ 2.85V to 5.5V Single-Supply Operation

♦ 750µA Supply Current

♦ 1.4µA Shutdown Mode

♦ 750kHz Gain-Bandwidth Product

♦ Operate Over the -40°C to +125°C Automotive

♦ Tiny 8-Pin µMAX Package

Note: All 8-pin µMAX packages have package code U8-1.

+Denotes a lead(Pb)-free/RoHS-compliant package.

MAX4208AUA+T

MAX4209HAUA+T

Bipolar Operation

(or ±1.425V to ±2.75V Dual Supplies)

Temperature Range

±20µV (max) at +25°C

PART

G = 1 + R2

MAX4208

Typical Application Circuit

-40°C to +125°C

TEMP RANGE

Ordering Information

IN-

IN+

REFIN/MODE

REF

PIN-

PACKAGE

8 µMAX

Features

REF

OUT

BUFFER OUT =

GAIN

(V/V)

ADJ

100

Related parts for MAX4208EVKIT+

MAX4208EVKIT+ Summary of contents

Page 1

... Battery-Powered Medical Equipment Precision Low-Side Current Sense Notebook Computers Differential Voltage Amplification µMAX is a registered trademark of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Ultra-Low Offset/Drift, Precision ♦ ...

Page 2

Ultra-Low Offset/Drift, Precision Instrumentation Amplifiers with REF Buffer ABSOLUTE MAXIMUM RATINGS ...............................................................-0. All Other Pins ...................................(V SS OUT Short-Circuit Duration .......................................Continuous Current Into OUT and V .......................................±25mA DD SS Current Into ...

Page 3

Instrumentation Amplifiers with REF Buffer ELECTRICAL CHARACTERISTICS (continued 5V 0V REF 100V/V (R1 = 1kΩ 99kΩ), T = +25°C, unless otherwise noted.) (Note ...

Page 4

Ultra-Low Offset/Drift, Precision Instrumentation Amplifiers with REF Buffer ELECTRICAL CHARACTERISTICS (continued 5V 0V REF G = 100V/V (R1 = 1kΩ 99kΩ), T = +25°C, unless otherwise ...

Page 5

Instrumentation Amplifiers with REF Buffer ELECTRICAL CHARACTERISTICS (continued 5V 0V REF 100V/V (R1 = 1kΩ 99kΩ), T = -40°C to +125°C, unless otherwise ...

Page 6

Ultra-Low Offset/Drift, Precision Instrumentation Amplifiers with REF Buffer ELECTRICAL CHARACTERISTICS (continued 5V 0V REF G = 100V/V (R1 = 1kΩ 99kΩ), T = -40°C to +125°C, ...

Page 7

Instrumentation Amplifiers with REF Buffer ( REF 100V/V (R1 = 1kΩ 99kΩ), T = +25°C, unless otherwise noted.) A INPUT OFFSET VOLTAGE ...

Page 8

Ultra-Low Offset/Drift, Precision Instrumentation Amplifiers with REF Buffer ( REF G = 100V/V (R1 = 1kΩ 99kΩ), T = +25°C, unless otherwise noted.) A POWER-SUPPLY ...

Page 9

Instrumentation Amplifiers with REF Buffer ( REF 100V/V (R1 = 1kΩ 99kΩ), T = +25°C, unless otherwise noted.) A LARGE-SIGNAL PULSE RESPONSE ...

Page 10

Ultra-Low Offset/Drift, Precision Instrumentation Amplifiers with REF Buffer ( REF G = 100V/V (R1 = 1kΩ 99kΩ), T = +25°C, unless otherwise noted.) A 0.1% ...

Page 11

Instrumentation Amplifiers with REF Buffer V DD MAX4208 AMP IN IN+ SHDN Figure 1. MAX4208 Functional Diagram Detailed Description The MAX4208/MAX4209 family of instrumentation ampli- fiers implements a ...

Page 12

Ultra-Low Offset/Drift, Precision Instrumentation Amplifiers with REF Buffer Table 1. REFIN/MODE Pin Functions REFIN/MODE VOLTAGE* V (typically +5V) The entire SHDN mode and draws 1.4µA of supply current. DD Between V + 200mV and The internal REF ...

Page 13

Instrumentation Amplifiers with REF Buffer Applications Information Setting the Gain (MAX4208) Connect a resistive divider from OUT to REF with the cen- ter tap connected set the gain for the MAX4208 (see the Typical Application Circuit). Calculate ...

Page 14

Ultra-Low Offset/Drift, Precision Instrumentation Amplifiers with REF Buffer V CLASSIC THREE OP-AMP INA CM-MAX 3 1 1/2 V REF CC 1 Figure 3. Limited ...

Page 15

Instrumentation Amplifiers with REF Buffer The ultra-low V of the MAX4208/MAX4209 allows full- OS scale V of only 10mV to 20mV for minimally inva- SENSE sive current sensing using milliohm sense resistors to get high accuracy. Previous methods used the ...

Page 16

Ultra-Low Offset/Drift, Precision Instrumentation Amplifiers with REF Buffer TOP VIEW Chip Information TRANSISTOR COUNT: 2335 PROCESS: BiCMOS 16 ______________________________________________________________________________________ + REFIN/MODE IN OUT MAX4208 MAX4209 IN REF SS ...

Page 17

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 17 © 2009 Maxim Integrated Products ...

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