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.
Key Features
Applications/Uses
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)
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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