SMD1103 Datasheet, PDF (2/14 Pages) Summit Microelectronics, Inc. – 10-Bit Data Acquisition System for Autonomous Environmental Monitoring

SMD1102 / 1103 / 1113
INTRODUCTION
The SMD1102, SMD1103 and SMD1113 each contain a
10-Bit data acquisition system (DAS) with dedicated EE-
PROM alarm limit storage. The three devices communi-
cate with the host µP via a standard two-wire I²C serial
interface. After initialization the SMD1102/1103/1113 can
automatically monitor one or more analog input channels.
If any input signal moves beyond its user-programmed
limits the host is notified by the SMBALERT# output, enabling
fault prediction in telecom line card applications, as an
example.
PIN CONFIGURATION
8-Pin SOIC
SMD1102
REF_IN 1
A_IN1 2
A_IN0 3
GND 4
8 V_DD
7 SMB_ALERT#
6 SCL
5 SDA
2033 8 PCon-2
8-Pin SOIC
SMD1103
A_IN2 1
A_IN1 2
A_IN0 3
GND 4
8 V_DD
7 SMB_ALERT#
6 SCL
5 SDA
2033 8 PCon-3
14-Pin SOIC
SMD1113
A0 1
A1 2
A2 3
A_IN2 4
A_IN1 5
A_IN0 6
GND 7
14 V_DD
13 CE#
12 REF_IN
11 NC
10 SMB_ALERT#
9 SCL
8 SDA
2033 14 PCon
PIN NAMES
1102
AIN0, AIN1
GND
REFIN
SCL
SDA
SMBALERT#
VDD
Analog channel inputs
Power supply return
Reference input
Serial Clock
Serial Data
Interrupt output
Power Supply
1103
AIN0, AIN1, AIN2
GND
SCL
SDA
SMBALERT#
VDD
Analog channel inputs
Power supply return
Serial Clock
Serial Data
Interrupt output
Power Supply
1113
CE#
A2, A1, A0
AIN0, AIN1, AIN2
GND
REFIN
SCL
SDA
SMBALERT#
VDD
Chip Enable
I²C Address select inputs
Analog channel inputs
Power supply return
Reference input
Serial Clock
Serial Data
Interrupt output
Power Supply
2
2033 8.1 10/04/01
SUMMIT MICROELECTRONICS, Inc.