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CMOS, High-Speed, 8-Bit ADC with 4- or 8-Channel Multiplexer

Product Details

Key Features

Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 8
# Input Channels 4
Conv. Rate (ksps) (max) 400
Data Bus µP/8
ADC Architecture SAR
Diff/S.E. Input S.E. Only
Internal VREF (V) (nominal) 5
Unipolar VIN (V) (max) 5
Package/Pins SOIC (W)/24
Budgetary
Price (See Notes)
12.2
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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 4
Conv. Rate (ksps) (max) 400
Data Bus µP/8
ADC Architecture SAR
Diff/S.E. Input S.E. Only
Internal VREF (V) (nominal) 5
Unipolar VIN (V) (max) 5
Package/Pins SOIC (W)/24
Budgetary
Price (See Notes)
12.2

Key Features

  • One-Chip Data Acquisition System
  • Four or Eight Analog Input Channels
  • 2.5μs per Channel Conversion Time
  • Internal 2.5V Reference (MAX154/MAX158 only)
  • Built-In Track/Hold Function
  • ½ LSB Error Specification
  • Single +5V Supply Operation
  • No External Clock
  • New Space-Saving SSOP Package

Applications/Uses

  • Audio Instrumentation
  • Digital Signal Processing
  • High-Speed Data Acquisition
  • High-Speed Servo Control
  • Telecommunications

Description

The MAX154/MAX158 and MX7824/MX7828 are high-speed, multi-channel analog-to-digital converters (ADCs). The MAX154 and MX7824 have four analog input channels, while the MAX158 and MX7828 have eight channels. conversion time for all devices is 2.5μs. The MAX154/MAX158 also feature a 2.5V on-chip reference, forming a complete high-speed data acquisition system.

All four converters include a built-in track/hold, eliminating the need for an external track/hold with many input signals. The analog input range is 0V to +5V, although the ADC operates from a single +5V supply.

Microprocessor interfaces are simplified by the ADC's ability to appear as a memory location or I/O port without the need for external logic. The data outputs use latched, three-state buffer circuitry to allow direct connection to a microprocessor data bus or system input port.

The MX7824 and MX7828 are pin compatible with Analog Devices' AD7824 and AD7828. The MAX154 and MAX158, which feature internal references, are also compatible with these products.

Simplified Block Diagram

MX7824, MX7828: Functional Diagram MX7824, MX7828: Functional Diagram 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 .