General Description

The MAX1363/MAX1364 low-power, 12-bit, 4-channel

analog-to-digital converters (ADCs) feature a digitally

programmable window comparator with an interrupt out-

put for automatic system-monitoring applications. Once

configured, monitor mode automatically asserts an inter-

rupt when any analog input exceeds the programmed

upper or lower thresholds, without interaction to the

host. The MAX1363/MAX1364 respond to the SMBus™

alert, allowing quick identification of the alarming device

on a shared interrupt. A programmable delay between

monitoring intervals lowers power consumption for

reduced monitoring rates.

In addition, the MAX1363/MAX1364 integrate an inter-

nal voltage reference, a clock, and a 1.7MHz, high-

optimized interface allows a maximum conversion rate

of 94.4ksps in normal mode while reading back the

conversion results. Each of the four analog inputs is

configurable for single-ended or fully differential opera-

tion and unipolar or bipolar operation. Two scan modes

utilize on-chip random access memory (RAM) to allow

eight conversions of a selected channel or scanning of

a group of channels to reduce interface overhead.

These devices operate from a single 2.7V to 3.6V

(MAX1363) or 4.5V to 5.5V (MAX1364) supply and

require only 436µA at the maximum sampling rate of

133ksps in monitor mode and 670µA at the maximum

sampling rate of 94.4ksps. AutoShutdown™ powers

down the devices between conversions, reducing sup-

ply current to less than 1µA when idle.

The full-scale analog-input range is determined by the

internal reference or by an externally applied reference

a 2.048V internal reference, and the MAX1364 features

a 4.096V internal reference.

The MAX1363/MAX1364 are available in a 10-pin

(-40°C to +85°C) temperature range. For 10-bit applica-

tions, refer to the pin-compatible MAX1361/MAX1362

data sheet.

Applications

System Monitoring/Supervision

Servers/Workstations

High-Reliability Power Supplies

Medical Instrumentation

Features

♦ Monitor Mode

Programmable Lower/Upper Trip Threshold

Alarm-Status Register Records Fault Events

SMBus Alert Response

Programmable Sampling Intervals

±1 LSB INL, ±1 LSB DNL

♦ 4-Channel Single-Ended or 2-Channel Fully

Differential Inputs

♦ Software-Programmable Bipolar/Unipolar

Conversions

♦ Fast Sampling Rate

94.4ksps While Continuously Reading

Conversions

133ksps in Monitor Mode

100kHz/400kHz Standard/Fast Mode

Up to 1.7MHz High-Speed Mode

♦ Single Supply

2.7V to 3.6V (MAX1363)

4.5V to 5.5V (MAX1364)

♦ Internal Reference

2.048V (MAX1363)

4.096V (MAX1364)

♦ Low Power

436µA in Monitor Mode (133ksps)

670µA at 94.4ksps

6µA at 1ksps

0.5µA in Power-Down Mode

♦ Small Package

10-Pin µMAX

4-Channel, 12-Bit System Monitors with Programmable

Trip Window and SMBus Alert Response

________________________________________________________________ Maxim Integrated Products

1

Ordering Information/Selector Guide

19-3338; Rev 1; 3/05

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

I

SUPPLY VOLTAGE (V)

MAX1363EUB

-40°C to +85°C

10 µMAX

0110100/0110101

2.7 to 3.6

MAX1363LEUB*

-40°C to +85°C

10 µMAX

0110010/0110011

2.7 to 3.6

MAX1363MEUB

-40°C to +85°C

10 µMAX

0110110/0110111

2.7 to 3.6

SMBus is a trademark of Intel Corporation.

I

nents from Maxim Integrated Products, Inc. or one of its subli-

censed Associated Companies, conveys a license under the

Philips I

tem, provided that the system conforms to the I

Specification as defined by Philips.

AutoShutdown is a trademark of Maxim Integrated Products, Inc.

µMAX is a registered trademark of Maxim Integrated Products, Inc.

Typical Operating Circuit and Pin Configuration appear at

end of data sheet.

Ordering Information/Selector Guide continued at end of data sheet.

*Future product—contact factory for availability.