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NJU9214 - 4.3/4 DIGIT SINGLE CHIP DIGITAL MULTIMETER LSI

Description

The NJU9214 is a 4

3/4 digits single chip digital multimeter LSI with 42 segments bargraph display.

Features

  • 4.
  • 3/4 Digit Display (Available for UP to ±39,999 Display).
  • 42 Segments Quick Response Bargraph Display.
  • NJRC Original Dual-Slope A to D Converter (±40,000Counts).
  • High Speed Dual-Slope A to D Converter (±400Counts).
  • Quick Response Auto-Ranging (20times/sec).
  • Frequency/Capacitance/Tachometer/Adapter Measurement.
  • Root-Mean-Square Measurement by connecting a External RMS-DC Converter.
  • External Relay Driving.
  • D.

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Datasheet Details

Part number NJU9214
Manufacturer New Japan Radio
File Size 581.21 KB
Description 4.3/4 DIGIT SINGLE CHIP DIGITAL MULTIMETER LSI
Datasheet download datasheet NJU9214 Datasheet

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Full PDF Text Transcription

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NJU9214 PRELIMINARY 4•3/4 DIGIT SINGLE CHIP DIGITAL MULTIMETER LSI ! GENERAL DESCRIPTION The NJU9214 is a 4•3/4 digits single chip digital multimeter LSI with 42 segments bargraph display. The NJU9214 realizes high precision of ±40,000 counts measurement by the NJRC original dual-slope A to D converter and realizes also quick response bargragh display and auto-ranging by another high speed dual-slope A to D converter. The input attenuator part is simplified because the resistor for resistance measurement is applied for voltage bleeder resistor. Furthermore, the NJU9214 realizes root-mean-square measurement for AC voltage and current by connecting a External RMS-DC Converter, and Data output by the on chip RS-232C interface circuit.
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