General Description

The MAX1026/MAX1028/MAX1030 are serial 10-bit ana-

log-to-digital converters (ADCs) with an internal reference

and an internal temperature sensor. These devices fea-

ture on-chip FIFO, scan mode, internal clock mode, inter-

nal averaging, and AutoShutdown™. The maximum

sampling rate is 300ksps using an external clock. The

MAX1030 has 16 input channels, the MAX1028 has 12

input channels, and the MAX1026 has 8 input channels.

All input channels are configurable for single-ended or

differential inputs in unipolar or bipolar mode. All three

devices operate from a +5V supply and contain a 10MHz

SPI™/QSPI™/MICROWIRE™-compatible serial port.

The MAX1030 is available in 28-pin 5mm x 5mm TQFN

with exposed pad and 24-pin QSOP packages. The

MAX1026/MAX1028 are only available in QSOP pack-

ages. All three devices are specified over the extended

-40°C to +85°C temperature range.

________________________Applications

System Supervision

Data-Acquisition Systems

Industrial Control Systems

Patient Monitoring

Data Logging

Instrumentation

Features

o Internal Temperature Sensor (±0.7°C Accuracy)

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

o Analog Multiplexer with True Differential

Track/Hold

16-, 12-, 8-Channel Single Ended

8-, 6-, 4-Channel True Differential

(Unipolar or Bipolar)

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

Codes Over Temperature

o Scan Mode, Internal Averaging, and Internal Clock

o Low-Power Single +5V Operation

2.3mA at 300ksps

o Internal 4.096V Reference or External Differential

Reference

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

Interface

o Space-Saving 28-Pin 5mm x 5mm TQFN Package

10-Bit 300ksps ADCs with FIFO,

Temp Sensor, Internal Reference

________________________________________________________________

Maxim Integrated Products

1

Pin Configurations

19-2853; Rev 4; 4/11

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

Ordering Information 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.

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

AIN0

EOC

DOUT

DIN

CS

SCLK

GND

REF+

MAX1026

QSOP

AIN1

AIN2

AIN5

AIN3

AIN4

REF-/AIN6

CNVST/AIN7

+

20

19

18

17

16

15

14

13

1

2

3

4

5

6

7

8

EOC

DOUT

DIN

CS

AIN3

AIN2

AIN1

AIN0

SCLK

GND

REF+

AIN7

AIN6

AIN5

AIN4

12

11

9

10

CNVST/AIN11

REF-/AIN10

AIN9

AIN8

MAX1028

QSOP

+

TOP VIEW

PART

TEMP RANGE

PIN-PACKAGE

MAX1026BCEE+T

0°C to +70°C

16 QSOP

MAX1026BEEE+T

-40°C to +85°C

16 QSOP

MAX1028BCEP+T

0°C to +70°C

20 QSOP

MAX1028BEEP+T

-40°C to +85°C

20 QSOP

Pin Configurations continued at end of data sheet.

+

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

T

= Tape and reel.