Rainbow-electronics MAX1364 Bedienungsanleitung PDF herunterladen

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-

speed, I

C™-compatible, 2-wire serial interface. The

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

voltage ranging from 1V to V

. The MAX1363 features

a 2.048V internal reference, and the MAX1364 features

a 4.096V internal reference.

The MAX1363/MAX1364 are available in a 10-pin

µMAX

package and are specified over the extended

(-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

♦ 12-Bit, I

C-Compatible ADC

±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

♦ High-Speed, I

C-Compatible Serial Interface

100kHz/400kHz Standard/Fast Mode

Up to 1.7MHz High-Speed Mode

Six Available I

C Slave Addresses

♦ Single Supply

2.7V to 3.6V (MAX1363)

4.5V to 5.5V (MAX1364)

♦ Internal Reference

2.048V (MAX1363)

4.096V (MAX1364)

♦ External Reference: 1V to V

♦ 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

MAX1363/MAX1364

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 0; 7/04

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

C SLAVE ADDRESS 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.

C is a trademark of Philips Corporation. Purchase of I

C compo-

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

censed Associated Companies, conveys a license under the

Philips I

C Patent Rights to use these components in an I

C sys-

tem, provided that the system conforms to the I

C Standard

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.

1 2 3 4 5 6 ... 23 24

MAX1363/MAX1364 1

Inhaltsverzeichnis

Seite 1 - MAX1363/MAX1364

General DescriptionThe MAX1363/MAX1364 low-power, 12-bit, 4-channelanalog-to-digital converters (ADCs) feature a digitallyprogrammable window comparat

Seite 2

MAX1363/MAX1364Power SupplyThe MAX1363 (2.7V to 3.6V) and MAX1364 (4.5V to5.5V) operate from a single supply and consume670µA (typ) at sampling rates

Seite 3

where RSOURCEis the analog-input source impedance,RIN= 2.5kΩ, and CIN= 22pF. For internal clock mode,tACQ= 1.5 / fSCL, and for external clock mode tAC

Seite 4

MAX1363/MAX1364External ClockSee the Configuration/Setup Bytes (Write Cycle) section.When configured for external clock mode (CLK = 1), theMAX1363/MAX

Seite 5

unsuccessful data transfers. An unsuccessful data trans-fer happens if a receiving device is busy or if a systemfault has occurred. In the event of an

Seite 6

MAX1363/MAX13644-Channel, 12-Bit System Monitors with ProgrammableTrip Window and SMBus Alert Response14 _____________________________________________

Seite 7

Software DescriptionConfiguration/Setup Bytes (Write Cycle)A write cycle begins with the bus master issuing aSTART condition followed by 7 address bit

Seite 8

MAX1363/MAX1364cycles begin with the bus master issuing a START condition followed by 7 address bits and a read bit (R/W = 1). After successfully rece

Seite 9

MAX1363/MAX13644-Channel, 12-Bit System Monitors with Programmable____________________________________________________________________________________

Seite 10

MAX1363/MAX1364When the MAX1363/MAX1364 receive a NACK, theyrelease SDA allowing the master to generate a STOP ora repeated START condition.Monitor Mo

Seite 11

clearing all alarms or by initiating an SMBus alert dur-ing an alarm condition (see the SMBus Alert section).The Delay 2, Delay 1, Delay 0 bits set th

Seite 12

MAX1363/MAX13644-Channel, 12-Bit System Monitors with ProgrammableTrip Window and SMBus Alert Response2 ______________________________________________

Seite 13

MAX1363/MAX1364bipolar mode, or set the lower threshold to 0x000 andthe upper threshold to 0xFFF for unipolar mode.Readback ModeSelect readback mode b

Seite 14

Resetting AlarmReset alarms by writing to monitor-setup data. See theConfiguring Monitor Mode section and Table 10.SMBus AlertThe SMBus-alert feature

Seite 15

MAX1363/MAX1364DefinitionsIntegral NonlinearityIntegral nonlinearity (INL) is the deviation of the valueson an actual transfer function from a straigh

Seite 16

MAX1363/MAX13644-Channel, 12-Bit System Monitors with ProgrammableTrip Window and SMBus Alert Response________________________________________________

Seite 17

MAX1363/MAX13644-Channel, 12-Bit System Monitors with ProgrammableTrip Window and SMBus Alert ResponseMaxim cannot assume responsibility for use of an

Seite 18

MAX1363/MAX13644-Channel, 12-Bit System Monitors with ProgrammableTrip Window and SMBus Alert Response________________________________________________

Seite 19

MAX1363/MAX13644-Channel, 12-Bit System Monitors with ProgrammableTrip Window and SMBus Alert Response4 ______________________________________________

Seite 20

MAX1363/MAX13644-Channel, 12-Bit System Monitors with ProgrammableTrip Window and SMBus Alert Response________________________________________________

Seite 21

Typical Operating Characteristics(VDD= 3.3V (MAX1363), VDD= 5V (MAX1364), fSCL= 1.7MHz, external clock, fSAMPLE= 94.4ksps, single-ended, unipolar, TA=

Seite 22

MAX1363/MAX13644-Channel, 12-Bit System Monitors with ProgrammableTrip Window and SMBus Alert Response________________________________________________

Seite 23

MAX1363/MAX13644-Channel, 12-Bit System Monitors with ProgrammableTrip Window and SMBus Alert Response8 ______________________________________________

Seite 24

Detailed DescriptionThe MAX1363/MAX1364 4-channel ADCs use succes-sive-approximation conversion techniques and fully dif-ferential input track/hold (T

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