FEATURES
D VERY LOW NOISE: 0.7nV//Hz D LOW-NOISE PREAMP (LNP) − Active Termination − Programmable Gains: 3, 12, 18, 22dB − Programmable Input Impedance (RF) − Buffered, Differential Outputs for CW Processing − Excellent Input Signal Handling Capabilities D LOW-NOISE VARIABLE-GAIN AMPLIFIER − High/Low-Mode (0/+6dB) − 52dB Gain Control Range − Linear Control Response: 22dB/V − Switchable Differential Inputs − Adjustable Output Clipping-Level D BANDWIDTH: 42MHz D HARMONIC DISTORTION: −55dB D 5V SINGLE SUPPLY D LOW-POWER: 154mW/Channel D POWER-DOWN MODES APPLICATIONS
D MEDICAL AND INDUSTRIAL ULTRASOUND SYSTEMS − Suitable for 10-Bit and 12-Bit Systems D TEST EQUIPMENT DESCRIPTION
The LNP gain can be programmed to one of four settings (3dB, 12dB, 18dB, 22dB), while maintaining excellent noise and signal handling characteristics. The input impedance of the LNP can be controlled by selecting one of the built-in feedback resistors. This active termination allows the user to closely match the LNP to a given source impedance, resulting in optimized overall system noise performance.
Texas Instruments
