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PRODUCT DESCRIPTION

The ADM1026 is a complete system hardware monitor for microprocessor-based systems, providing measurement and limit comparison of various system parameters. The ADM1026 has up to 19 analog measurement channels. Fifteen analog voltage inputs are provided, five of which are dedicated to monitoring +3.3 V, +5 V, and ±12 V power supplies, and the processor core voltage. The ADM1026 can monitor two other power supply voltages by measuring its own VCC and the main system supply. One input (two pins) is dedicated to a remote temperature-sensing diode. Two additional pins can be configured as general-purpose analog inputs to measure 0 V to 2.5 V, or as a second temperature sensing input. The eight remaining inputs are general-purpose analog inputs with a range of 0 V to 2.5 V or 0 V to 3 V. The ADM1026 also has an on-chip temperature sensor.

FEATURES

Up to 19 analog measurement channels (including internal measurements)

Up to 8 fan speed measurement channels

Up to 17 general-purpose logic I/O pins

Remote temperature measurement with remote diode (two channels)

On-chip temperature sensor

Analog and PWM fan speed control outputs

2-wire serial system management bus (SMBus)

8 kB on-chip EEPROM

Full SMBus 1.1 support includes packet error checking (PEC)

Chassis intrusion detection

Interrupt output (SMBAlert)

Reset input, reset outputs

Thermal interrupt (THERM) output

Limit comparison of all monitored values

APPLICATIONS

Network servers and personal computers

Telecommunications equipment

Test equipment and measuring instruments