_______________________________________________________________ Maxim Integrated Products 1

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.

36V, Precision, Low-Noise,

Wide-Band Amplifier

19-5200; Rev 1; 4/11

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

*EP = Exposed pad.

Ordering Information

General Description

The MAX9632 is a low-noise, precision, wide-band

operational amplifier that can operate in a very wide

+4.5V to +36V supply voltage range. The IC operates in

dual (±18V) mode.

The exceptionally fast settling time and low distortion

make the IC an excellent solution for precision acquisi-

tion systems. The rail-to-rail output swing maximizes the

dynamic range when driving high-resolution 24-bit Σ∆

ADCs even with low supply voltages.

The IC achieves 55MHz of gain-bandwidth product and

ultra-low 0.94nV/√Hz input voltage noise with only 3.9mA

of quiescent current.

The IC is offered in 8-pin SO and TDFN packages and

is rated for operation over the -40NC to +125NC tempera-

ture range.

Applications

High-Resolution ADC Drivers

High-Resolution DAC Buffers

Medical Imaging

Low-Noise Signal Processing

Test and Measurement Systems

ATE

Features

S

0.94nV/√Hz Ultra-Low Input Voltage Noise

S

Very Fast 600ns Settling Time to 16-Bit Accuracy

S

THD of -128dB at 10kHz

S

Low Input Offset Voltage 125µV (max)

S

Low Input Offset Temperature Drift 0.5µV/°C (max)

S

Gain-Bandwidth Product 55MHz

S

+4.5V to +36V Wide Supply Range

S

Rail-to-Rail Output

S

Unity-Gain Stable

S

8-Pin SO and TDFN Packages

S

ESD 8kV HBM and 1kV CDM

EVALUATION

KIT

AVAILABLE

FREQUENCY (Hz)

10k

1k

100

10

100k

INPUT-VOLTAGE NOISE DENSITY

vs. FREQUENCY

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

0

TOTAL HARMONIC DISTORTION

vs. OUTPUT VOLTAGE

OUTPUT VOLTAGE (V)

1

-150

-140

-130

-120

-110

-100

-90

-80

-160

0.1

10

f = 10kHz

f = 1kHz

PART

TEMP RANGE

PIN-

PACKAGE

TOP

MARK

MAX9632ASA+

-40NC to +125NC 8 SO

—

MAX9632ATA+

-40NC to +125NC 8 TDFN-EP*

BML