Renesas proposes a suitable solution for blood pressure monitoring by the high precision analog and software technology. In particular, RL78/H1D series have on-chip high-precision analog front end, LCD controller and PWM timer that are ideal for blood pressure measurement. They achieve pressure monitoring system with simply connected pressure sensor, cuff, pump, valve, LCD panel.

Blood Pressure Monitor

System Block Diagram

System Block Diagram

Recommended Products
Block Semiconductor Device Recommended Products Features, etc.
Main controller +sensor Bio-sensing Front End MCU RL78/H1D 24-bit sigma-delta A/D,10-bit SAR A/D, 12-bit D/A, 8-bit D/A, Op-Amp for continuous current supply, Op-Amp for general purpose, LCD Control Driver
Main controller MCU RL78/L1x Series 24MHz operation, 16-bit MCU, low power consumption, on-chip LCD controller/driver
Communication BLE MCU RL78/G1D Bluetooth v4.1 Specification (Single mode)
Low Power RF (Tx=4.3 mA, Rx=3.5 mA with DC/DC )
Sensor Analog front end Smart Analog IC300 Low voltage configurable amplifier
Configurable amplifier: 3 channels
Operating voltage: 2.2 to 3.6 V (low-voltage product)
Smart Analog IC500 Configurable amplifier
Configurable amplifier: 3 channels
Operating voltage: 3.0 to 5.5 V
Related Software
Name Document No.
M3S-S2-Tiny sound playback system * -

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