Texas Instruments LMH6554 2.8 GHz Ultra Linear Fully Differential Amplifier LMH6554LE/NOPB

The LMH6554LE/NOPB is a high-performance fully differential amplifier from Texas Instruments, featuring a small-signal bandwidth of 2.8 GHz and a large-signal bandwidth of 1.8 GHz. It is designed to deliver exceptional signal fidelity, making it suitable for driving high-speed data acquisition systems with 8- to 16-bit resolution. The amplifier supports unity gain and allows for operation at gains greater than unity without compromising performance metrics such as response flatness and harmonic distortion. Key specifications include a gain flatness of 0.1 dB up to 830 MHz, an output third-order intercept point (OIP3) of 46.5 dBm at 150 MHz, and low harmonic distortion levels of -96 dBc and -97 dBc for second and third harmonics, respectively, at 75 MHz. The input noise voltage is rated at 0.9 nV/,àöHz, and the input noise current is 11 pA/,àöHz, contributing to its high linearity performance. The device operates with a power consumption of 260 mW and a typical supply current of 52 mA. The LMH6554 is housed in a compact 14-lead UQFN package, making it suitable for space-constrained applications. It is capable of driving ADC inputs and intermediate filter stages, ensuring compatibility with various high-speed signaling applications. The operating temperature range is from -40¬8C to 125¬8C, making it suitable for automotive and other demanding environments.