Datasheet4U Logo Datasheet4U.com

ICL7139 - (ICL7139 / ICL7149) 33/4 Digit Autoranging Multimeter

Description

The Intersil ICL7139 and ICL7149 are high performance, low power, auto-ranging digital multimeter lCs.

Unlike other autoranging multimeter ICs, the ICL7139 and ICL7149 always display the result of a conversion on the correct range.

There is no “range hunting” noticeable in the display.

Features

  • 13 Ranges - ICL7139 - 4 DC Voltage 400mV, 4V, 40V, 400V - 1 AC Voltage 400V - 4 DC Current 4mA, 40mA, 400mA, 4A - 4 Resistance 4kΩ , 40kΩ , 400kΩ , 4MΩ.
  • 18 Ranges - ICL7149 - 4 DC Voltage 400mV, 4V, 40V, 400V - 2 AC Voltage with Optional AC Circuit - 4 DC Current 4mA, 40mA, 400mA, 4A - 4 AC Current with Optional AC Circuit - 4 Resistance 4kΩ , 40kΩ , 400kΩ , 4MΩ.
  • Autoranging - First Reading is Always on Correct Range.
  • On-Chip Duplex LCD Display Drive Includin.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
ICL7134 14-Bit Multiplying Microprocessor-Compatible D/A Converter Intersil
ICL7135 Digit A/D Converter Maxim
ICL7135 A/D Converter Renesas
ICL7135C Analog-to-Digital Converters Texas Instruments
ICL7135CN Analog-to-Digital Converters Texas Instruments

Other Datasheets by Intersil (Renesas)

Part Number Description
ICL7101 (ICL7101 / ICL8052) 3 1/2 Digital A/D
ICL7121 16-Bit Multiplying Microprocessor-Compatible D/A Converter
ICL7149 (ICL7139 / ICL7149) 33/4 Digit Autoranging Multimeter
ICL741 Operational Amplifier
ICL741C Operational Amplifier

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
ICL7139, ICL7149 August 1997 3 3/4 Digit, Autoranging Multimeter Description The Intersil ICL7139 and ICL7149 are high performance, low power, auto-ranging digital multimeter lCs. Unlike other autoranging multimeter ICs, the ICL7139 and ICL7149 always display the result of a conversion on the correct range. There is no “range hunting” noticeable in the display. The unit will autorange between the four different ranges. A manual switch is used to select the 2 high group ranges. DC current ranges are 4mA and 40mA in the low current group, and 400mA and 4A in the high current group. Resistance measurements are made on 4 ranges, which are divided into two groups. The low resistance ranges are 4/40kΩ . The high resistance ranges are 0.4/4MΩ . Resolution on the lowest range is 1Ω .
Published: |