OPA691IDG4

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The OPA691IDG4 is a monolithic, low power and high performance operational amplifier (op amp) from Texas Instruments. It is a precision, high speed, rail-to-rail amplifier usually used in instrumentation applications. It is classified as a Linear-Amplifiers-Instrumentation, OP Amps, Buffer Amps.

This rail-to-rail amplifier uses the advanced BiCMOS processing technology and has a precision voltage gain of 6.0V/V. It provides a low noise output of 15µV (max). It offers a low input offset voltage of 15mV, making it suitable for high resolution applications. The amplifier offers extremely wide voltage swings from its single supply operation and excellent gain accuracy. This low power operational amplifier is based on Ti\'s unique non-substrate-connected Op Amp (NSOPA) technology. It allows the amplifier to maintain its performance even in extremely noisy common-mode or differential-mode environments.

OPA691IDG4 comes with two inputs, an inverting and a non-inverting input. The inverting input terminal is normally grounded and is used to receive input signals, while the non-inverting input terminal is used to deliver the output. The output, therefore, is the amplified version of the input signal. The amplifier also provides high speed operation with a bandwidth of 160MHz (typical).

Typically, this amplifier is used in instrumentation applications such as automotive, industrial, and medical electronics. It is also well-suited for use in portable electronic instruments, such as Multimeters, Digital Multi-meters, pH meters, Temperature Meters, Visual interface design, and -40°C to +85°C temperature range applications. Other applications include high speed ADC/DAC systems, active filters, low power audio amplifiers and motor control systems.

The OPA691IDG4 is a low power, high performance amplifier delivering precision voltage gains of 6.0V/V. With its two inputs, a non-inverting and an inverting input, it offers excellent accuracy and low power consumption. It is suitable for instrumentation and high resolution applications, as well as many other high speed automated systems.

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