80-µA

Current Regulator

80 µA

60 µA

10 µA

10 µA

OUT

GND

IN+

IN−

Epi-FET

Diodes

Resistors

Transistors

COMPONENT COUNT

1

2

2

30

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7

LM193-MIL

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Copyright © 2017, Texas Instruments Incorporated

7 Detailed Description

7.1 Overview

The dual comparator has the ability to operate up to absolute maximum of 36 V on the supply pin. This device

has proven ubiquity and versatility across a wide range of applications. This is due to very wide supply voltages

range (2 V to 36 V), low Iq and fast response of the device.

enable the comparator to be used in AND functionality.

7.2 Functional Block Diagram

Figure 6. Schematic (Each Comparator)

7.3 Feature Description

The comparator consists of a PNP darlington pair input, allowing the device to operate with very high gain and

fast response with minimal input bias current. The input Darlington pair creates a limit on the input common

The output consists of an open drain NPN (pull-down or low side) transistor. The output NPN will sink current

when the negative input voltage is higher than the positive input voltage and the offset voltage. The VOL is

7.4 Device Functional Modes

7.4.1 Voltage Comparison

The device operates solely as a voltage comparator, comparing the differential voltage between the positive and

negative pins and outputting a logic low or high impedance (logic high with pullup) based on the input differential

polarity.