TSX339IDT

Current - Input Bias (Max):	10pA
Supplier Device Package:	14-SO
Mounting Type:	Surface Mount
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 125°C
Hysteresis:	--
Propagation Delay (Max):	--
CMRR, PSRR (Typ):	90dB CMRR, 90dB PSRR
Current - Quiescent (Max):	13µA
Current - Output (Typ):	--
Series:	--
Voltage - Input Offset (Max):	5mV
Voltage - Supply, Single/Dual (±):	2.7 V ~ 16 V
Output Type:	Open Drain
Number of Elements:	4
Type:	CMOS
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Overview of TSX339IDT

TSX339IDT is an integrated circuit (IC) manufactured by Toshiba TM Semiconductors and is classified as a comparator. Comparators are electronic devices that compare two electrical signals and indicate which of the two is greater. The TSX339IDT has two inputs, A and B, and two output states indicating the result of the comparison. This IC is a low-power version of the Toshiba family of comparators, with the main feature being its ability to sense very small differences between the two inputs. It is a single channel device and has a few other features such as push-pull output, hysteresis, an open-drain output, and low input bias current (Ib).

Applications

The TSX339IDT is designed as a general-purpose comparator and its applications range from industrial equipment to consumer electronics. It is suitable for use in test and measurement equipment, control and instrumentation systems, analog-to-digital converters, and process control systems. Other common uses include automotive electronics, security systems, power supplies, and medical device controls. This comparator is also suitable for monitoring input signals from photodiodes, optocouplers, and other light emitters.

Working Principle

When the two inputs, A and B, are equal, the output of the comparator is in a logic LOW state. However, if only one of the two signals is greater, the output will go HIGH, indicating the voltage difference between the two inputs. The comparator also has an additional feature known as ‘hysteresis’. When the hysteresis is enabled, the comparator has two thresholds, an upper and a lower threshold, which allow it to ignore small fluctuations in signal. This ensures that the output of the comparator remains stable with minimal noise.The TSX339IDT uses a current-feedback operational amplifier as the main component. This amplifier provides the desired characteristics while still having a low quiescent current, low operational gains, and high common-mode rejection ratio. The IC has a push-pull output and the supply voltage can range from 4 V to 36 V, making it suitable for a variety of applications.

Conclusion

The TSX339IDT is a low-power comparator IC produced by Toshiba Semiconductors for use in a variety of applications, from automotive to industrial applications. This IC has two inputs and one output and is capable of sensing small differences between the input signals. It is primarily intended for use in test and measurement equipment, control and instrumentation systems, analog-to-digital converters, security systems, and power supplies. The main feature of the TSX339IDT is its low power consumption and its ability to provide a push-pull logic output with hysteresis.

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