General Description

The MAX11626–MAX11629/MAX11632/MAX11633 are

serial 12-bit analog-to-digital converters (ADCs) with an

internal reference. These devices feature on-chip FIFO,

scan mode, internal clock mode, internal averaging,

and AutoShutdown™. The maximum sampling rate is

300ksps using an external clock. The MAX11632/

MAX11633 have 16 input channels; the MAX11628/

MAX11629 have 8 input channels; and the MAX11626/

MAX11627 have 4 input channels. These six devices

operate from either a +3V supply or a +5V supply, and

contain a 10MHz SPI™-/QSPI™-/MICROWIRE™-com-

patible serial port.

The MAX11626–MAX11629 are available in 16-pin

QSOP packages. The MAX11632/MAX11633 are avail-

able in 24-pin QSOP packages. All six devices are

specified over the extended -40°C to +85°C tempera-

ture range.

________________________Applications

System Supervision

Data-Acquisition Systems

Industrial Control Systems

Patient Monitoring

Data Logging

Instrumentation

Features

o Analog Multiplexer with Track/Hold

16 Channels (MAX11632/MAX11633)

8 Channels (MAX11628/MAX11629)

4 Channels (MAX11626/MAX11627)

o Single Supply

2.7V to 3.6V (MAX11627/MAX11629/MAX11633)

4.75V to 5.25V

(MAX11626/MAX11628/MAX11632)

o Internal Reference

2.5V (MAX11627/MAX11629/MAX11633)

4.096V (MAX11626/MAX11628/MAX11632)

o 16-Entry First-In/First-Out (FIFO)

o Scan Mode, Internal Averaging, and Internal Clock

o Accuracy: ±1 LSB INL, ±1 LSB DNL, No Missing

Codes Over Temperature

o 10MHz 3-Wire SPI-/QSPI-/MICROWIRE-Compatible

Interface

o Small Packages

16-Pin QSOP (MAX11626–MAX11629)

24-Pin QSOP (MAX11632/MAX11633)

12-Bit, 300ksps ADCs

with FIFO and Internal Reference

________________________________________________________________

Maxim Integrated Products

1

16

15

14

13

12

11

10

9

2

1

3

4

5

6

7

8

AIN0

TOP VIEW

EOC

DOUT

DIN

CS

SCLK

GND

REF

MAX11626–

MAX11629

QSOP

AIN1

AIN2

AIN5 (N.C.)

AIN3

AIN4 (N.C.)

AIN6 (N.C.)

AIN7/(CNVST)

() MAX11626/MAX11627 ONLY

+

Pin Configurations

19-5323; Rev 3; 10/11

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.

EVALUATION

KIT

AVAILABLE

Ordering Information

+

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

/V denotes an automotive qualified part.

PART

NUMBER

OF

INPUTS

SUPPLY

VOLTAGE

RANGE (V)

PIN

PACKAGE

MAX11626EEE+

4

4.75 to 5.25

16 QSOP

MAX11627EEE+

4

2.7 to 3.6

16 QSOP

MAX11628EEE+

8

4.75 to 5.25

16 QSOP

MAX11628EEE/V+

8

4.75 to 5.25

16 QSOP

MAX11629EEE+

8

2.7 to 3.6

16 QSOP

MAX11632EEG+

16

4.75 to 5.25

24 QSOP

MAX11633EEG+

16

2.7 to 3.6

24 QSOP

Pin Configurations continued at end of data sheet.

AutoShutdown is a trademark of Maxim Integrated Products, Inc.

SPI/QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

Note: All devices are specified over the -40°C to +85°C operating

temperature range.