ICL7149 Datasheet (icl7139 / Icl7149) 33/4 Digit Autoranging Multimeter

Manufacturer: Intersil (now Renesas)

Overview: ICL7139, ICL7149 August 1997 3 3/4 Digit, Autoranging Multimeter.

This datasheet includes multiple variants, all published together in a single manufacturer document.

Datasheet Details

Part number	ICL7149
Manufacturer	Intersil (now Renesas)
File Size	139.71 KB
Description	(ICL7139 / ICL7149) 33/4 Digit Autoranging Multimeter
Datasheet	ICL7149 ICL7139 Datasheet (PDF)

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.

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.

Part Number	Description
ICL7101	(ICL7101 / ICL8052) 3 1/2 Digital A/D
ICL7121	16-Bit Multiplying Microprocessor-Compatible D/A Converter
ICL7139	(ICL7139 / ICL7149) 33/4 Digit Autoranging Multimeter
ICL741	Operational Amplifier
ICL741C	Operational Amplifier
ICL7600	(ICL7600 / ICL7601) High Reliability Commutating Auto Zero Operational Amplifier
ICL7601	(ICL7600 / ICL7601) High Reliability Commutating Auto Zero Operational Amplifier
ICL7621	Dual/Quad / Low Power CMOS Operational Amplifiers
ICL7641	Dual/Quad / Low Power CMOS Operational Amplifiers
ICL7642	Dual/Quad / Low Power CMOS Operational Amplifiers