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
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.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TMUX9832 No High Voltage Bias, Beyond the Supply, 220V 1:1, 32-Channel Switch With Latch-Up Immunity datasheet (Rev. A) | PDF | HTML | 2026/5/11 | ||
| 應用說明 | Switching Ultrasonic and Ultrasound Signals with TMUX9832 | PDF | HTML | 2025/2/13 | |||
| 應用說明 | Smallest 128ch Multiplexer Design for Ultrasound Using 4 of TMUX9832 vs 2 of 64 Channel Devices (Rev. A) | PDF | HTML | 2025/1/30 | |||
| 應用說明 | Improve Portability of Ultrasound Scanners with TI High-Voltage Switches | PDF | HTML | 2024/7/12 | |||
| Product overview | Optimizing the Size of Handheld Ultrasound Front-End Circuit Designs | PDF | HTML | 2023/12/15 |
設計與開發
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TMUX9832BGAEVM — 適用於 BGA 封裝的 TMUX9832 評估模組
TIDA-010256 — 128 通道超音波發射器系統參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RWF) | 72 | Ultra Librarian |
| NFBGA (ZEH) | 83 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。