ADM1040 Datasheet | Analog Devices

FEATURES Monitors Multiple Voltage Rails (240VA Limited) Monitors Bulk DC, Op-Amp Supply, 5V Supply Monitors Voltage Rails 1,2 and 3 Currents Up to 3 Fan Speed Measurement Channels Up to 6 General-Purpose Logic Inputs External Temperature Measurement with Remote Diode (Two Channels) On-Chip Temperature Sensor Limit parison of all Monitored Values Power Supply Monitor ASIC ADM1040 Analog Fan Speed Control Output SMBus TM patible Serial Interface SMBus ALERT Capability 512 Bytes On-Chip, Write-Protected E2PROM Shutdown Output for Overtemperature and 240VA Faults APPLICATIONS Network Servers and Personal puters Microprocessor-Based Office Equipment Test Equipment and Measuring Instruments FUNCTIONAL BLOCK DIAGRAM SDA SCL A1 A0/NTEST_OUT 2 3 22 23 FROM NAND TREE OUTPUT GPI0 4 SERIAL BUS INTERFACE GPIO REGISTERS FAN1/GPI1 5 VDD FAN SPEED COUNTER VALUE AND LIMIT REGISTERS ADDRESS POINTER REGISTER 8K BYTES E 2PROM TEMPERATURE CONFIGURATION REGISTER VDD/5VSB LIMIT PARATORS INTERRU PT STATUS REGISTERS INT MASK REGISTERS 1 ALERT GPI2/I2_+ 9 GPI3/I2_-/AIN2 10 GPI4/I3_+ 11 GPI5/I3_- 12 D1-/GPI2 13 D1+/GPI3 14 D2-/GPI4/FAN2 15 D2+/GPI5/FAN3 16 I1_+ 17 I1_-/AIN1 18 AIN3 19 AIN4 20 AIN5 21 BANDGAP TEMP. SENSOR INPUT SIGNAL CONDITIONING AND ANALOG MULTIPLEXER INTERRUPT MASKING 24 8-BIT ADC CONFIGURATION REGISTERS BANDGAP REFERENCE ANALOG OUTPUT REGISTER AND 8-BIT DAC TO NAND TREE ENABLE SHDN DAC/NTEST_IN 6 GND REV. Pr G 01/'01 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. SMBus is a trademark One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 World Wide Web Site: http://.analog. Fax: 617/326-8703 © Analog Devices,...