Texas Instruments

LMP7711MK

LMP7711MK Description

The LMP7711MK from Texas Instruments is a general-purpose operational amplifier (op-amp) designed for precision applications requiring low input bias current and high-speed performance. Part of the LMP® series, this single-channel op-amp operates over a wide supply voltage range (1.8V to 5.5V), making it suitable for both low-power and standard-voltage systems. With an ultra-low input bias current of 0.1 pA and a minimal input offset voltage of 10 µV, the LMP7711MK excels in high-impedance sensor interfaces and precision signal conditioning. Its 17 MHz gain bandwidth product (GBW) and 11.5V/µs slew rate ensure fast signal processing, while the 66 mA output current capability supports driving moderate loads. Packaged in a SOT23-Thin form factor, it is optimized for surface-mount applications where space is constrained.

LMP7711MK Features

• Ultra-Low Input Bias Current (0.1 pA): Ideal for high-impedance sensor applications (e.g., photodiodes, pH probes).
• High Precision (10 µV Offset): Ensures accuracy in DC-coupled systems.
• Wide Supply Range (1.8V–5.5V): Compatible with battery-powered and low-voltage designs.
• High-Speed Performance (17 MHz GBW, 11.5V/µs Slew Rate): Suitable for fast signal amplification and filtering.
• Robust Output Drive (66 mA): Capable of driving capacitive loads or small actuators.
• Low Power Consumption (1.15mA Supply Current): Balances performance and energy efficiency.
• Surface-Mount Package (SOT23-Thin): Compact footprint for space-constrained PCBs.

LMP7711MK Applications

The LMP7711MK is particularly well-suited for:

• Sensor Signal Conditioning: Photodiode transimpedance amplifiers (TIAs), piezoelectric sensors.
• Portable Medical Devices: ECG amplifiers, blood glucose monitors requiring low noise and high CMRR.
• Test & Measurement Equipment: Precision data acquisition, active filters.
• Battery-Powered Systems: Energy-efficient signal processing in IoT nodes, wearables.
• Industrial Control Systems: High-impedance feedback networks, servo control loops.

Conclusion of LMP7711MK

The LMP7711MK combines precision, speed, and versatility, making it a strong choice for applications demanding low noise, high input impedance, and moderate bandwidth. While marked as obsolete, its performance characteristics remain competitive for legacy designs or replacements in existing systems. Engineers should consider this op-amp for high-impedance analog front-ends or low-voltage, high-precision circuits where its ultra-low bias current and robust drive capabilities provide a clear advantage. For new designs, verify availability or explore TI's recommended alternatives within the LMP® series.