MAX139 Datasheet

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Maxim

MAX139 -3-1/2 Digit ADC with LED Driver(40 pin DIP) - Buy MAX139

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MAX139 Maxim IC

Features

Single Supply +2.5V to +7.0V Operation
Measures Both Positive and Negative Input Voltages
Charge-Pump Voltage Inverter Generates a Negative Supply Voltage
Internal Bandgap Reference
On-Board Display Driver
Low Segment Current (MAX140)

Pin Description

Pin Number Description

1 V+ -Positive Supply

2 V+

3 C1- - Capacitor 1 - terminal

4 C2+ - Capacitor 2 + terminal

5 C2- - Capacitor 2 - terminal

6 V-

7 T2out - Transmitter 2 Output

8 R2in - Receiver 2 Input

9 R2out - Receiver 2 Output

10 T2in - Transmitter 2 Input

11 T1in - Transmitter 1 Input

12 R1out - Receiver 1 Output

13 R1in - Receiver 1 Input

14 T1out - Transmitter 1 Output

15 GND - Ground

16 Vcc - +5V Power Supply

Pin Layout

MAX139 Maxim IC

Dimensional Drawing

Maxim DIP Dimension Drawing

Technical Data

Data Sheet

Maxim - Data Sheet for MAX139

Application Notes

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