Packaging information
| Package | Pins VQFN (RWF) | 72 |
| Operating temperature range (°C) -40 to 85 |
| Package qty | Carrier 2,500 | LARGE T&R |
Features for the TMUX9832
- Only +5V bias supply required
- Very low power: 9.5mW (typ) all 32CH switching at 50kHz
- Wide input signal range:
- Up to ±110V, 220VPP
- ±120V, 240VPP voltage overshoots supported
- 305MHz small signal frequency range supported
- ≥50MHz large signal frequency range supported
- Low off capacitance: 10.7pF
- Low on resistance
- Up to 100MHz data shift clock frequency
- Logic levels: 1.8V to 5V
- Integrated NDIN to invert input data polarity
- Fast turn-on time: 3µs (maximum)
- Excellent HD2PC performance: ≥50dB at 5MHz
- Excellent off isolation performance: -68dB at 5MHz
- Small BGA and QFN package options with optimized pin-out
- Integrated thermal shutdown for improved system reliability
- Integrated bleed resistors on the outputs
- Latch-up immunity by device construction
- Extended temperature range: –40°C to 125°C
Description for the TMUX9832
The TMUX9832 is a 32-channel low harmonic distortion, low resistance, low capacitance high-voltage analog switch integrated circuit (IC) with latch-up immunity. Each device has 32 independently selectable 1:1, single-pole, single-throw (SPST) switch channels. The device only requires a +5V supply, while still being able to support ±110V analog signals. TMUX9832 also integrates bleed resistors on its drain (Dx) pins to discharge capacitive loads, like piezoelectric transducers. TMUX9832 is designed for medical ultrasound imaging and other piezoelectric transducer driver applications.
TMUX9832 integrates cascadable 32-bit shift register with latches for controlling each of the 32 switches. The daisy chain capability allows for many TMUX9832 devices to be controlled without requiring a separate chip-select for every device. To reduce noise in the signal path due to potential clock feed-through, the active low latch enable can be held high while data is loaded into the shift registers. The 32-bit shift register can operate off of a 1.8V – 5V power supply and support clock speeds up to 100MHz.