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.
ICL7149 Datasheet
