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.