The LT1491ACS#PBF from Linear Technology is a high-performance dual operational amplifier (op amp) that offers rail-to-rail output swing on a single supply. This feature enables the op amp to output signals that range from the negative supply to within millivolts of the positive supply, maximizing the dynamic range in battery-powered and single-supply applications.

Key Features

• Rail-to-Rail Output Swing: The LT1491ACS#PBF can swing its output voltage from the negative supply rail to just shy of the positive supply rail, making it ideal for single-supply operations and maximizing the signal range.
• Single Supply Operation: It operates on a single supply voltage ranging from 4V to 36V, or dual supplies of ±2V to ±18V, providing flexibility in various circuit configurations.
• Low Input Bias Current: With a low input bias current of 250pA, it is suitable for high-impedance sensor applications and precision integrators.
• High Output Drive: The op amp can drive loads as low as 600Ω, making it versatile for driving a range of devices directly.
• Low Power Consumption: It has a quiescent current of 500μA per amplifier, which helps to maintain energy efficiency in portable devices.

Applications

The LT1491ACS#PBF is designed for a wide range of applications that require precision and efficiency. It is particularly well-suited for:

• Battery-powered systems
• Data acquisition systems
• Active filters
• Portable test equipment
• Medical instrumentation

Product Specifications

Parameter Value Supply Voltage (Single Supply) 4V to 36V Supply Voltage (Dual Supply) ±2V to ±18V Input Bias Current 250pA Output Current 20mA Quiescent Current (per amplifier) 500μA Load Drive Capability 600Ω

The LT1491ACS#PBF is available in the 16-lead narrow SO package, offering compact integration into various electronic assemblies. With its robust design and versatile features, it stands out as a reliable choice for engineers and designers looking for a high-quality operational amplifier.