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Stand-Alone, 10-Channel, 10-Bit System Monitors with Internal Temperature Sensor and VDD Monitor

10-/12-Bit Data-Acquisition Systems with Local/Remote Temperature Sensing Eliminate Need for Processor Intervention

Product Details

Key Features

Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 10
# Input Channels 10
Conv. Rate (ksps) (max) 94
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input Both
Internal VREF (V) (nominal) 4.096
External VREF (V) (min) 1
External VREF (V) (max) 5.55
Unipolar VIN (V) (max) 4.096
Bipolar VIN (±V) (max) 2.048
INL (±LSB) 0.5
Package/Pins TSSOP/16
Budgetary
Price (See Notes)
7.19
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Simplified Block Diagram

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Sampling:
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Parameters

Parametric specs for Precision ADCs (<u><</u> 5Msps)
Resolution (bits) (ADC) 10
# Input Channels 10
Conv. Rate (ksps) (max) 94
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input Both
Internal VREF (V) (nominal) 4.096
External VREF (V) (min) 1
External VREF (V) (max) 5.55
Unipolar VIN (V) (max) 4.096
Bipolar VIN (±V) (max) 2.048
INL (±LSB) 0.5
Package/Pins TSSOP/16
Budgetary
Price (See Notes)
7.19

Key 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/Uses

  • Remote Data Logging
  • Remote Telecom Networks
  • Server Farms
  • System Supervision

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/differential mux accepts voltage and remote-diode temperature-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 number of fault cycles allowed, before generating an interrupt. These ADCs can also perform recursive data averaging for noise reduction. Programmable wait intervals 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). AutoShutdown™ 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-powered applications.

Simplified Block Diagram

MAX1153, MAX1154: Typical Application Circuit MAX1153, MAX1154: Typical Application Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.