Stand-Alone, 10-Channel, 10-Bit System Monitors

_______________________________________________________________________________________

9

Pin Description

PIN

NAME

FUNCTION

1

AIN0

Analog Voltage Input/Temperature Input Channel 0 or Positive Differential Input Relative to AIN1

2

AIN1

Analog Voltage Input/Temperature Input Channel 1 or Negative Differential Input Relative to AIN0

3

AIN2

Analog Voltage Input/Temperature Input Channel 2 or Positive Differential Input Relative to AIN3

4

AIN3

Analog Voltage Input/Temperature Input Channel 3 or Negative Differential Input Relative to AIN2

5

AIN4

Analog Voltage Input/Temperature Input Channel 4 or Positive Differential Input Relative to AIN5

6

AIN5

Analog Voltage Input/Temperature Input Channel 5 or Negative Differential Input Relative to AIN4

7

AIN6

Analog Voltage Input/Temperature Input Channel 6 or Positive Differential Input Relative to AIN7

8

AIN7

Analog Voltage Input/Temperature Input Channel 7 or Negative Differential Input Relative to AIN6

9

REF

Positive Reference Input in External Mode. Bypass REF with a 0.1μF capacitor to GND when in external mode.

When using the internal reference, REF must be left open.

10

INT

Interrupt Output. Push-pull or open drain with selectable polarity. See Table 9 and the INT Interrupt Output section.

11

DOUT

Serial Data Output. DOUT transitions on the falling edge of SCLK. High impedance when

CS is at logic high.

12

GND

Ground

13

14

DIN

Serial Data Input. DIN data is latched into the serial interface on the rising edge of the SCLK.

15

SCLK

Serial Clock Input. SCLK clocks data in and out of the serial interface (duty cycle must be 40% to 60%).

16

CS

Active-Low Chip-Select Input. When

CS is low, the serial interface is enabled. When CS is high, DOUT is high

impedance, and the serial interface resets.

ACCUMULATOR

INTERNAL TEMP

UPPER

THRESHOLD

LOWER

THRESHOLD

CHANNEL

CONFIGURATION

ACCUMULATOR

UPPER

THRESHOLD

LOWER

THRESHOLD

CHANNEL

CONFIGURATION

ACCUMULATOR

AIN0

UPPER

THRESHOLD

LOWER

THRESHOLD

CHANNEL

CONFIGURATION

ACCUMULATOR

AIN1

UPPER

THRESHOLD

LOWER

THRESHOLD

CHANNEL

CONFIGURATION

ACCUMULATOR

AIN2

UPPER

THRESHOLD

LOWER

THRESHOLD

CHANNEL

CONFIGURATION

ACCUMULATOR

AIN3

UPPER

THRESHOLD

LOWER

THRESHOLD

CHANNEL

CONFIGURATION

ACCUMULATOR

AIN4

UPPER

THRESHOLD

LOWER

THRESHOLD

CHANNEL

CONFIGURATION

ACCUMULATOR

AIN5

UPPER

THRESHOLD

LOWER

THRESHOLD

CHANNEL

CONFIGURATION

ACCUMULATOR

AIN6

UPPER

THRESHOLD

LOWER

THRESHOLD

CHANNEL

CONFIGURATION

ACCUMULATOR

AIN7

UPPER

THRESHOLD

LOWER

THRESHOLD

CHANNEL

CONFIGURATION

AIN7

AIN6

AIN5

AIN4

AIN3

AIN2

AIN1

MUX

TEMP

SENSOR

REFERENCE

12-BIT

ADC WITH

T/H

SCAN

AND

CONVERSION

CONTROL

POR

POWER

GOOD

INPUT CHANNEL REGISTER

INPUT CONFIGURATION REGISTER

STEP-UP REGISTER

ALARM REGISTER

AVERAGING

DIGITAL

COMPARATOR

SERIAL

INTERFACE

REF

DOUT

DIN

SCLK

INT

CS

MAX1153

MAX1154

Block Diagram