MAX44241 查看數據表（PDF） - Maxim Integrated

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MAX44241

36V, Low-Noise, Precision, Single/Quad/Dual Op Amps

Maxim Integrated 

EVALUATION KIT AVAILABLE

MAX44246

36V, Low-Noise, Precision, Dual Op Amp

General Description

The MAX44246 is a 36V, ultra-precision, low-noise, low-

drift, dual operational amplifier that offers near-zero DC

offset and drift through the use of patented chopper

stabilized and auto-zeroing techniques. This method

constantly measures and compensates the input offset,

eliminating drift over time and temperature and the effect

of 1/f noise. This dual device features rail-to-rail outputs,

operates from a single 2.7V to 36V supply or dual ±1.35V

to ±18V supplies, and consumes only 0.42mA per chan-

nel, with only 9nV/√Hz input-referred voltage noise.

The IC is unity-gain stable with a gain-bandwidth product

of 5MHz. With excellent specifications such as offset

voltage of 5FV (max), drift of 20nV/NC (max), and

117nVP-P noise in 0.1Hz to 10Hz, the IC is ideally

suited for applications requiring ultra-low noise, and DC

precision such as interfacing with pressure sensors,

strain gauges, precision weight scales, and medical

instrumentation.

The IC is available in 8-pin FMAXM or SO packages and

is rated over the -40NC to +125NC temperature range.

Applications

Transducer Amplifiers

Load Cell Amplifiers

Precision

Instrumentation

Battery-Powered

Equipment

PLC Analog I/O

Modules

Features

S 2.7V to 36V Power-Supply Range

S Ultra-Low Input VOS: 5µV (max)

S Low 20nV/°C (max) of Offset Drift

S Low 9nV/√Hz noise at 1kHz

S 1µs Fast Settling Time

S 5MHz Gain-Bandwidth Product

S Rail-to-Rail Output

S Integrated EMI Filter

S Low 0.55mA Per Channel (max) Quiescent Current

S 8-Pin µMAX/SO Package

Ordering Information appears at end of data sheet.

For related parts and recommended products to use with this part,

refer to www.maximintegrated.com/MAX44246.related.

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

Typical Operating Circuit

15V

3.3V

MAX44246

BUFFER

R

15V

-15V

50RG

R

15V

R1

3V VOUT

MAX6126

VDD

RG

50RG

BUFFER

R

VDD VREF

VIN+

MAX11211 OUTPUT

MICRO-

PROCESSOR

15V

-15V

R

MAX44246

VIN-

VSS

BUFFER

1.5V

C1

MAX44246

-15V

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

19-6375; Rev 3; 5/13

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