33/4 Digit, Autoranging Multimeter

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 4/40k. The high resistance ranges are 0.4/4M. Resolution on the lowest range is 1. By Intersil Corporation
ICL7139 's PackagesICL7139 's pdf datasheet

ICL7139 Pinout, Pinouts
ICL7139 pinout,Pin out
This is one package pinout of ICL7139,If you need more pinouts please download ICL7139's pdf datasheet.

ICL7139 Application circuits
ICL7139 circuits
This is one application circuit of ICL7139,If you need more circuits,please download ICL7139's pdf datasheet.

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