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Maxim Integrated - 10-Bit System Monitors

Numéro de référence MAX1154
Description 10-Bit System Monitors
Fabricant Maxim Integrated 
Logo Maxim Integrated 





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MAX1154 fiche technique
19-2839; Rev 1; 6/10
Stand-Alone, 10-Channel, 10-Bit System Monitors
with Internal Temperature Sensor and VDD Monitor
General Description
The MAX1153/MAX1154 are stand-alone, 10-channel (8
external, 2 internal) 10-bit system monitor ADCs with
internal reference. A programmable single-ended/dif-
ferential mux accepts voltage and remote-diode tem-
perature-sensor inputs. These devices independently
monitor the input channels without microprocessor
interaction and generate an interrupt when any variable
exceeds user-defined limits. The MAX1153/MAX1154
configure both high and low limits, as well as the num-
ber of fault cycles allowed, before generating an inter-
rupt. These ADCs can also perform recursive data
averaging for noise reduction. Programmable wait inter-
vals between conversion sequences allow the selection
of the sample rate.
At the maximum sampling rate of 94ksps (auto mode,
single channel enabled), the MAX1153 consumes only
5mW (1.7mA at 3V). AutoShutdownTM reduces supply
current to 190µA at 2ksps and to less than 8µA at 50sps.
Stand-alone operation, combined with ease of use in a
small package (16-pin TSSOP), makes the MAX1153/
MAX1154 ideal for multichannel system-monitoring
applications. Low power consumption also makes
these devices a good fit for hand-held and battery-pow-
ered applications.
Features
Monitor 10 Signals Without Processor
Intervention
Eight External Channels Programmable as
Temperature or Voltage Monitors
Intelligent Circuitry for Reliable Autonomous
Measurement
Programmable Digital Averaging Filter
Programmable Fault Counter
Precision Measurements
10-Bit Resolution
±0.5 LSB INL, ±0.5 LSB DNL
±0.75°C Temperature Accuracy (typ)
Flexible
Automatic Channel Scan Sequencer with
Programmable Intervals
Programmable Inputs: Single Ended/Differential,
Voltage/Temperature
Programmable Wait State
Internal 2.5V/4.096V Reference
(MAX1153/MAX1154)
Remote Temperature Sensing Up to 10m
(Differential Mode)
Single 3V or 5V Supply Operation
Small 16-Pin TSSOP Package
Applications
System Supervision
Remote Telecom Networks
Server Farms
Remote Data Loggers
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX1153BEUE+ -40°C to +85°C 16 TSSOP
MAX1154BEUE+ -40°C to +85°C 16 TSSOP
+Denotes a lead(Pb)-free/RoHS-compliant package.
Selector Guide
Pin Configuration
PART
MAX1153BEUE+
MAX1154BEUE+
INL (LSB)
TEMP
SUPPLY
ERROR (°C) VOLTAGE (V)
±0.5
±3.0
2.7 to 3.6
±0.5
±2.5
4.5 to 5.5
TOP VIEW
+
AIN0 1
AIN1 2
AIN2 3
AIN3 4
AIN4 5
MAX1153
MAX1154
AIN5 6
AIN6 7
AIN7 8
16 CS
15 SCLK
14 DIN
13 VDD
12 GND
11 DOUT
10 INT
9 REF
Typical Application Circuit appears at end of data sheet.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
TSSOP
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

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