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高速、12位ADC,带有外部基准输入

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主要特征

应用/用途

Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 12
# Input Channels 1
Conv. Rate (ksps) (max) 308
Data Bus µP/12
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) -4.95
External VREF (V) (max) -5.05
Unipolar VIN (V) (max) -5
INL (±LSB) 1
Package/Pins PDIP/24
PLCC/28
Budgetary
Price (See Notes)
26.25
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参量

Parametric specs for Precision ADCs (<u><</u> 5Msps)
Resolution (bits) (ADC) 12
# Input Channels 1
Conv. Rate (ksps) (max) 308
Data Bus µP/12
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) -4.95
External VREF (V) (max) -5.05
Unipolar VIN (V) (max) -5
INL (±LSB) 1
Package/Pins PDIP/24
PLCC/28
Budgetary
Price (See Notes)
26.25

主要特征

  • Plug-In Replacement for AD7672
  • 12-Bit Resolution and Accuracy
  • Fast Conversion Time
    • MX7672_ _03 - 3µs
    • MX7672_ _05 - 5µs
    • MX7672_ _10 - 10µs
  • Operates with +5V and -12V Supplies
  • Buffered Reference Input
  • Low 110mW Power Consumption
  • Choice of +5V, +10V, or ±5V Input Ranges
  • Fast 125ns Bus-Access Time

应用/用途

  • High-Speed Data-Acquisition Systems
  • Personal Computer I/O Boards
  • Sonar and Radar Signal Processing
  • Telecommunications

描述

The MX7672 is a 12-bit, high-speed, BiCMOS, analog-to-digital converter (ADC) that performs conversions in as little as 3μs while consuming only 110mW of power. The MX7672 is a plug-in replacement for AD7672.

The MX7672 requires an external -5V reference. A buffered reference input minimizes reference current requirements and allows a single reference to drive several ADCs. External reference specifications can be chosen to suit the accuracy of the application. The ADC clock can be driven from either a crystal or an external clock source, such as a microprocessor (µP) clock.

Average input range is pin-selectable for 0 to +5V, 0 to +10V, or ±5V, making the ADC ideal for data-acquisition and analog input/output cards. A high-speed digital interface (125ns data-access time) with three-state data outputs is compatible with most µPs.

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