TS321IDT Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Amplifier Type:	General Purpose
Number of Circuits:	1
Output Type:	--
Slew Rate:	0.4 V/µs
Gain Bandwidth Product:	800kHz
Current - Input Bias:	20nA
Voltage - Input Offset:	500µV
Current - Supply:	600µA
Current - Output / Channel:	40mA
Voltage - Supply, Single/Dual (±):	3 V ~ 30 V, ±1.5 V ~ 15 V
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SO
Base Part Number:	TS321

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Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

TS321IDT is a specialized type of instrumentation amplifier that is designed for ultra-low noise and very low offset. It is a single-supply amplifier that operates from a single 2.7V - 3.6V power supply and can be used to measure small signals in a wide range of applications, such as medical and industrial instruments, data acquisition systems, and audio systems. TS321IDT can be used for both AC (alternating current) and DC (direct current) signals. It is also suitable for wideband signals with frequencies up to 5MHz, and is one of the best low-noise solutions available for audio measurement applications.

General Working Principle

TS321IDT consists of three main parts: an amplifier, a gain selector, and a power supply. The amplifier amplifies the signal and is powered by the power supply. The gain selector sets the gain of the amplifier, and can be adjusted to optimize the gain for different applications. The amplifier consists of two input stages, a differential amplifier and an error amplifier. The differential amplifier amplifies the difference between the two input signals. The output of the differential amplifier is then passed through the error amplifier, which corrects for any errors in the differential amplifier’s output. Finally, the output of the error amplifier is passed through the gain selector to adjust the overall gain of the amplifier.

Input Stage

The input stage of the TS321IDT is the main component in the amplifier. It is composed of two input transistors, Q1 and Q2, which are connected to the two input signals. The transistors act as voltage followers and amplify the input signals. The amplified signals are then passed on to the differential amplifier stage.

Differential Amplifier Stage

The differential amplifier stage amplifies the difference between the two input signals. The output of the differential amplifier is fed back to the input stage, where it is summed with the two input signals and amplified again. This process generates an output signal that is proportional to the difference between the two input signals.

Error Amplifier Stage

The error amplifier stage is used to correct any errors in the differential amplifier’s output. The output of the error amplifier is then passed through the gain selector, which can be adjusted to optimize the overall gain of the amplifier.

Power Supply

The power supply is used to power the amplifier. The power supply can be a DC or AC source and is usually connected through a current limiting resistor to the amplifier’s power terminals. The power supply should be filtered with a capacitor to reduce noise and provide clean power to the amplifier.

Applications

TS321IDT can be used in a variety of applications, such as medical and industrial instruments, data acquisition systems, and audio systems. Its very low noise and extremely low offset make it a great choice for applications that require accurate and precise measurements. It is also suitable for wideband signals with frequencies up to 5MHz. The amplifier can be used for both AC and DC signals and is one of the best low-noise solutions available for audio measurement applications.

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