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1Msps, µP Compatible, 8-Bit ADC with 1µA Power Down

Product Details

Key Features

Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 8
# Input Channels 1
Conv. Rate (ksps) (max) 1000
Data Bus µP/8
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) -2.5
External VREF (V) (max) 2.5
Bipolar VIN (±V) (max) 5
Package/Pins PDIP/20
SOIC (W)/20
SSOP/20
Budgetary
Price (See Notes)
5.41
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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 1
Conv. Rate (ksps) (max) 1000
Data Bus µP/8
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) -2.5
External VREF (V) (max) 2.5
Bipolar VIN (±V) (max) 5
Package/Pins PDIP/20
SOIC (W)/20
SSOP/20
Budgetary
Price (See Notes)
5.41

Key Features

  • 660ns Conversion Time
  • Power-Up/Power-Down in 200ns
  • Internal Track/Hold
  • 1Msps Throughput
  • Low Power
    • 40mW (Operating Mode)
    • 5µW (Power-Down Mode)
  • 1MHz Full-Power Bandwidth
  • 20-Pin Narrow DIP, SO, and SSOP Packages
  • No External Clock Required
  • Unipolar/Bipolar Inputs
  • Single +5V or Dual ±5V Supplies
  • Ratiometric Reference Inputs

Applications/Uses

  • Battery-Powered Systems
  • Burst-Mode Data Acquisition
  • Cellular Telephones
  • Digital-Signal Processing
  • High-Speed Servo Loops
  • Portable Radios
  • Telecommunications

Description

The MAX153 high-speed, microprocessor (µP)-compatible, 8-bit analog-to-digital converter (ADC) uses a half-flash technique to achieve a 660ns conversion time, and digitizes at a rate of 1M samples per second (Msps). It operates with single +5V or dual ±5V supplies and accepts either unipolar or bipolar inputs. An active-low POWERDN (power-down) pin reduces current consumption to a typical value of 1µA (with 5V supply). The part returns from power-down to normal operating mode in less than 200ns, providing large reductions in supply current in applications with burst-mode input signals.

The MAX153 is DC and dynamically tested. Its µP interface appears as a memory location or input/output port that requires no external interface logic. The data outputs use latched, three-state buffered circuitry for direct connection to a µP data bus or system input port. The ADC’s input/reference arrangement enables ratiometric operation.

Simplified Block Diagram

MAX153: Functional Diagram MAX153: 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 .