General Description

The MAX1036–MAX1039 low-power, 8-bit, multichannel,

analog-to-digital converters (ADCs) feature internal

track/hold (T/H), voltage reference, clock, and an

operate from a single supply and require only 350µA at

the maximum sampling rate of 188ksps. Auto-

Shutdown™ powers down the devices between conver-

sions reducing supply current to less than 1µA at low

throughput rates. The MAX1036/MAX1037 have four ana-

log input channels each, while the MAX1038/MAX1039

have twelve analog input channels. The analog inputs are

software configurable for unipolar or bipolar and single-

ended or pseudo-differential operation.

The full-scale analog input range is determined by the

internal reference or by an externally applied reference

MAX1039 feature a 2.048V internal reference and the

MAX1036/MAX1038 feature a 4.096V internal reference.

The MAX1036/MAX1037 are available in 8-pin SOT23

packages. The MAX1038/MAX1039 are available in 16-

pin QSOP packages. The MAX1036–MAX1039 are guar-

anteed over the extended industrial temperature range

(-40°C to +85°C). Refer to MAX1136–MAX1139 for 10-bit

devices and to the MAX1236–MAX1239 for 12-bit

devices.

Applications

Hand-Held Portable Applications

Medical Instruments

Battery-Powered Test Equipment

Solar-Powered Remote Systems

Received-Signal-Strength Indicators

System Supervision

Features

400kHz Fast Mode

1.7MHz High-Speed Mode

o Single Supply

2.7V to 3.6V (MAX1037/MAX1039)

4.5V to 5.5V (MAX1036/MAX1038)

o Internal Reference

2.048V (MAX1037/MAX1039)

4.096V (MAX1036/MAX1038)

o Internal Clock

o 4-Channel Single-Ended or 2-Channel Pseudo-

Differential (MAX1036/MAX1037)

o 12-Channel Single-Ended or 6-Channel Pseudo-

Differential (MAX1038/MAX1039)

o Internal FIFO with Channel-Scan Mode

o Low Power

350µA at 188ksps

110µA at 75ksps

8µA at 10ksps

1µA in Power-Down Mode

o Software Configurable Unipolar/Bipolar

o Small Packages

8-Pin SOT23 (MAX1036/MAX1037)

16-Pin QSOP (MAX1038/MAX1039)

2.7V to 5.5V, Low-Power, 4-/12-Channel

2-Wire Serial 8-Bit ADCs

________________________________________________________________ Maxim Integrated Products

1

Ordering Information

19-2442; Rev 1; 10/02

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

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

PART

TEMP RANGE

PIN-PACKAGE

TUE

(LSB)

INPUT

CHANNELS

INTERNAL

REFERENCE (V)

TOP

MARK

MAX1036EKA-T

-40

°C to +85°C

8 SOT23-8

±2

4

4.096

AAJE

MAX1037EKA-T

-40

°C to +85°C

8 SOT23-8

±2

4

2.048

AAJG

MAX1038AEEE

-40

°C to +85°C

16 QSOP

±1

12

4.096

—

MAX1039AEEE

-40

°C to +85°C

16 QSOP

±1

12

2.048

—

AutoShutdown is a trademark of Maxim Integrated Products, Inc.

Pin Configurations and Typical Operating Circuit appear

at end of data sheet.