MAX9638 Ver la hoja de datos (PDF) - Maxim Integrated

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MAX9638

3V/5V Low-Power, Low-Noise, CMOS, Rail-to-Rail I/O Op Amps

Maxim Integrated 

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MAX9636/MAX9637/

MAX9638

EVALUATION KIT AVAILABLE

3V/5V Low-Power, Low-Noise, CMOS,

Rail-to-Rail I/O Op Amps

General Description

The MAX9636/MAX9637/MAX9638 are single-supply,

CMOS input op amps featuring wide bandwidth at low

quiescent current, making them suitable for a broad range

of battery-powered applications such as portable medical

instruments, portable media players, and smoke detec-

tors. A combination of extremely low input bias currents,

low input current noise and low input voltage noise allows

interface to high-impedance sources such as photodiode

and piezoelectric sensors.

The ICs feature a maximized ratio of gain bandwidth

(GBW) to supply current. The devices operate from a

single 2.1V to 5.5V supply at a typical quiescent supply

current of 36μA. For additional power conservation, the

MAX9636 and MAX9638 offer a low-power shutdown

mode that reduces supply current to 1μA and places the

amplifiers’ outputs into a high-impedance state.

The ICs are specified over the automotive operating tem-

perature range (-40°C to +125°C). The single is offered

in a space-saving, 6-pin SC70 package, while the dual is

offered in tiny, 8-pin SC70 and 10-pin UTQFN packages.

Applications

●● Portable Medical Instruments

●● Piezoelectric Transducer Amplifiers

●● Smoke Detectors

●● Battery-Powered Devices

●● Transimpedance Amplifiers

●● Tablets

Benefits and Features

●● Ideal for Precision Transimpedance Amplifier

Applications

• Ultra-Low 0.1pA Bias Current

• Wide 1.5MHz Bandwidth

• Low Input Current-Noise Density: 0.9fA/√Hz

●● Extend Battery Life

• Single-Supply Operation VDD = 2.1V to 5.5V

• Low 36μA Quiescent Current

• 1μA Quiescent Current in Shutdown

●● Save Board Space

• 6 and 8-Pin SC70 and 10-Pin UTQFN Packages

Ordering Information

PART

MAX9636AXT+

MAX9637AXA+

MAX9638AVB+

TEMP RANGE

-40°C to +125°C

-40°C to +125°C

-40°C to +125°C

PIN-PACKAGE

6 SC70

8 SC70

10 UTQFN

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

T = Tape and reel.

Block Diagram

PHOTODIODE

VDD

IN-

MAX9636 OUT

IN+

REF

SIGNAL

CONDITIONING/

FILTERS

MAX1286

ADC

19-5228; Rev 5; 5/19

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