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CMOS, 20µs, 8-Bit, 8-Channel Data Acquisition System

Product Details

Key Features

Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 8
# Input Channels 8
Conv. Rate (ksps) (max) 50
Data Bus µP/8
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) -5
External VREF (V) (max) -15
Unipolar VIN (V) (max) -5
Package/Pins PDIP/28
SOIC (W)/28
Budgetary
Price (See Notes)
16.99
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Simplified Block Diagram

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Parameters

Parametric specs for Precision ADCs (<u><</u> 5Msps)
Resolution (bits) (ADC) 8
# Input Channels 8
Conv. Rate (ksps) (max) 50
Data Bus µP/8
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) -5
External VREF (V) (max) -15
Unipolar VIN (V) (max) -5
Package/Pins PDIP/28
SOIC (W)/28
Budgetary
Price (See Notes)
16.99

Key Features

  • Fast Conversion Time: 20μsec (MAX161)
  • No Missing Codes Over Temperature
  • On Chip 8x 8 Dual Port RAM
  • Interfaces Directly To Z80/8085/6800
  • Ratiometric Capability
  • Interleaved DMA Operation

Applications/Uses

  • Automatic Test Equipment
  • Data Loggers
  • Digital Signal Processing
  • Process Control
  • Robotics

Description

The MAX161 and MX7581 are CMOS single-chip 8-bit, 8-channel data acquisition systems (DAS). Each chip includes an 8-bit A/D converter, 8-channel multiplexer, 8 x 8 dual port RAM with contention logic, and microprocessor compatible I/O logic. When combined with a voltage reference, a complete data acquisition system is produced that interfaces with the majority of microprocessors.

Conversions take place on a continuous, channel sequencing basis using a microprocessor clock or control signal. Data is stored automatically in dual port RAM so that any channel can be read at any time under microprocessor control.

The MAX161 is an enhanced, pin-compatible version of the MX7581. Improvements include faster conversion and interface timing, lower zero error and drift, reduced power dissipation, and availability in military temperature grades. All devices are available in 28 pin DIP and Small Outiline (SO) packages.

Simplified Block Diagram

MAX161, MX7581: Pin Configuration MAX161, MX7581: Pin Configuration 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 .