12-Bit, 8-Channel, ADC System Monitor With Temperature Sensor, Internal – External Reference, and I2C Interface.
SGM90810 SGM90810.pdf

No.14101

FEATURES

• True 12-Bit Sigma-Delta ADC Core

 Power Supply Range: 3V to 5.5V

 Total Unadjusted Error: ±0.16%

 ±1 LSB INL and ±1 LSB DNL

 Operating Current: 0.25mA

 Deep Shutdown Current: 15µA

 Temperature Resolution: 0.5℃/LSB

 Temperature Accuracy:

  -40℃ to +125℃: ±2℃ (MAX)

 Configurable Single-Ended and/or Pseudo-Diff. 

  Inputs

 Selectable Internal 2.56V VREF or External VREF

 Digital Comparators for Each Channel

 Interrupt Pin nINT for Generating Alarm Signal

 I2C Serial Bus Interface Compatibility with 9 

  Selectable Addresses

 Time-Out Reset Feature for I2C interface

 Separate Channel Shutdown and Whole Chip 

  Deep Shutdown Mode to Minimize Power

  Consumption

 Available in a Green TSSOP-16 Package

DESCRIPTION

The SGM90810 is an 8-channel system monitor especially designed for monitoring complicated system status. The power supply voltage range is from 3V to 5.5V. By configuring the internal registers, the signal input mode can be single-ended or pseudo-differential. The SGM90810 is equipped with a temperature sensor inside, built-in digital comparators and an interrupt output pin, which provides flexibility to monitor each channel and generate alarm signals when the input exceeds the thresholds. The SGM90810 also integrates an internal reference, which makes this device a complete single chip solution for system monitor.

The SGM90810 system monitor has a true 12-bit sigma-delta ADC internally with I2C interfaces. The interface supports the Standard Mode (100kbps) and the Fast Mode (400kbps). The analog filters on the I2bus provide excellent noise resistance performance. The SDA and SCL of I2C have a timeout reset function to prevent I2C bus locking. The SGM90810 provides a flexible sequencer for controlling channel conversions. The data conversion results of each channel is stored in independent registers. And each channel can be independently shut down to save power.
The SGM90810 is available in a Green TSSOP-16 package. It operates over the operating temperature range of -40to +125.


APPLICATION CIRCUIT
PIN CONFIGUTION
网站地图