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Medical ECG Slide 34

Shown on this slide are the processors that TI is positioning for medical ECG devices. The low power C5000 DSP family is being featured, which is a very extensive portfolio of more than thirty devices. Texas Instruments recently released four devices, directly targeting medical device applications. The key advantage for these four DSP processors is low active power consumption. How this low active power consumption benefits the medical customers is simple. When considering a hold device where the instrument is actually collecting the ECG information and conducting real-time diagnostics, active power consumption is critical to maximize the battery life for that pulse monitor. This is precisely what this product provides by having low active power at less than 0.15 mW/MHz. If the application requires 50 MHz of DSP performance to do the real-time diagnostics, the result is 7 to 8 mW for the total processor power that would be consumed. There is also an integrated FFT hardware accelerator. To get that ECG signal into the processor it is necessary to do a large amount with FFT and frequency domain, to build sophisticated algorithms. These devices also have a large on-chip memory to collect as much ECG information as possible and to conduct the data logging and diagnostics. Since USB connectivity is a key feature that medical customers require, especially in ECG devices for data logging, data storing, etc., there is a USB 2.0 interface in these devices along with an integrated transceiver to reduce the system level BOM cost and the power consumption. There are many different options that are available in these processors that will enable them to meet the needs of medical devices.

PTM Published on: 2012-05-08