Product Introduction

The GT721/2/4 series includes single-channel, dual-channel, and quad-channel operational amplifiers, featuring high performance, low noise, and rail-to-rail input and output capabilities for low-voltage applications. These amplifiers support single-supply voltages ranging from 2.2V to 5.5V and dual-supply voltages from ±1.1V to ±2.75V, with an input common-mode range extending 0.1V beyond the power rails.

The GT721/2/4 series boasts ultra-low input noise of 8nV at 1kHz and low input offset voltage of 1.5mV (max). They also offer a gain-bandwidth product of 10MHz and a slew rate of 5.5V/μs. These characteristics make these operational amplifiers ideally suited for a wide range of applications, including sensors, audio, active filters, A/D converters, communications, test equipment, cellular and cordless phones, laptops and tablets, photodiode amplification, battery-powered instruments, and more.

Regarding packaging, the GT721 is available in SC70-5, SOT23-5, SOP-8, and MSOP-8 packages. The GT722 is offered in SOP-8 and MSOP-8 packages. And the GT724 comes in SOP-14 and TSSOP-14 packages.

Functional Characteristics

Power Supply Voltage: 2.2V to 5.5V (±1.1V to ±2.75V)

Input Common-Mode Range: (V-) - 0.1V to (V+) + 0.1V

Input Offset Voltage: ±1.5mV (max)

Input Noise: 8nV @ 1kHz

Open-Loop Gain: 110dB

Gain-Bandwidth Product: 10MHz

Slewing Rate: 5.5V/μs

Common-Mode Rejection Ratio (CMRR): 88dB

Power Supply Rejection Ratio (PSRR): 95dB

Quiescent Current: 1.4mA (typ)

Output Short-Circuit Current: 100mA

Operating Temperature Range: -40°C to 125°C

Packages: SOT23-5, SC70-5, SOP8, MSOP8, SOP14, TSSOP14

Product Advantages

The GT72X series boasts ultra-low input noise of 8nV @ 1kHz.

It supports both single and dual power supply configurations.

A variety of package options are available to meet different design requirements.

Typical application

25-kHz Low-pass Filter