This ultrasound transmission reference design uses TI's TX7516 five-level pulse transmitter and the high-voltage TMUX9832 switch. The transmitter and switch are connected in a 1:4 manner to address the compact hardware design requirements for high channel count ultrasonic analog front end systems. This design also reduces overall power supply size through the adoption of our high-efficiency, small footprint power modules and SEPIC topologies.
Features
- Small size, 128-channel maximum, ±80V five-level or three-level pulser output with integrated programmable beamformer
- Programmable transistor drive current to optimize second harmonic distortion performance
- Dynamic power management system to optimize transmit power consumption
- One clock cycle can update the state of all switch channels during scans with interwoven input routing topology
- High-voltage circuit with maximum ±80V, 300mA output capability