A393F PDF – KIA393F, Dual Comparator

Part Number: A393F, KIA393F

Function: Dual Comparator

Package  DIP, SOP 8 Pin Type

Manufacturer: KEC

Images:A393F pinout datasheet


A393F is Dual Comparator. A dual comparator refers to an integrated circuit (IC) that contains two individual voltage comparators within a single package. A voltage comparator is an essential electronic component used to compare two input voltages and determine which one is larger or smaller.

The basic function of a voltage comparator is to produce a digital output based on the comparison of the input voltages. When one input voltage is higher than the other, the output of the comparator goes to a logic high state (often represented as a “1”), and when the opposite is true, the output goes to a logic low state (often represented as a “0”).


· Be Possible to Operate at the Wide Range Single or Two Supply Voltage.

· Low Supply Current : ICC=0.8mA(Typ.).

· Low Input Offset Voltage : VIO=2mV(Typ.).

· Wide Common Mode Input Voltage : 0VDC to VCC-1.5VDC.

· Output is Compatible with TTL, DTL, MOS and C-MOS.

· Output is Open Collector and Wired-OR Possible.

Block diagram:

A393F pdf comparator


1. Level detection: In many cases, you need to determine if a signal voltage is above or below a certain reference level. Dual comparators can be used to check if a signal is within a specific range or threshold.

2. Hysteresis

3. Motor control

4. Oscillators and waveform generation

A393F PDF Datasheet

AD8561 PDF – Single Supply Comparator

This post explains for the Comparator.

The Part Number is AD8561.

The function of this semiconductor is Ultrafast 7 ns Single Supply Comparator.

The package is SOIC or DIP 8 Pin Type

Manufacturer: Analog Devices

Preview images :

AD8561 pinout datasheet


The AD8561 is a single 7 ns comparator with separate input and output sections. Separate supplies enable the input stage to be operated from ±5 V dual supplies and +5 V single supplies. Fast 7 ns propagation delay makes the AD8561 a good choice for timing circuits and line receivers. Propagation delays for rising and falling signals are closely matched and track over temperature. This matched delay makes the AD8561 a good choice for clock recovery, since the duty cycle of the output will match the duty cycle of the input.

The AD8561 has the same pinout as the LT1016, with lower supply current and a wider common-mode input range, which includes the negative supply rail. […]

AD8561 pdf


1. High Speed Timing
2. Clock Recovery and Clock Distribution
3. Line Receivers
4. Digital Communications
5. Phase Detectors
6. High Speed Sampling
7. Read Channel Detection
8. PCMCIA Cards
9. Upgrade for LT1016 Designs

AD8561 PDF Datasheet