HL 8036

GENERAL DESCRIPTION

The HL8036 Heart Pulse Detector is a single chip differential-sensing electrocardiogram heart pulse detection system. The preamplifier is built as a differential input instrument amplifier for preprocessing heart pulse signal. There are two amplifiers can be configured as band pass filter and low pass filter for further processing heart pulse signal. The built-in digital processor tracks hand touch signals and provides an additional digital formatted hand touch signal.  

FEATURES

  • Low operating voltage
  • Differential-sensing detection
  • Built-in common voltage
  • Built-in hands on detection
  • Additional hand touch signal output

APPLICATION

  • Heart Pulse Monitor
  • Speed Control for Treadmill
  • Incline Control for Treadmill
  • Function Control for Treadmill
  • Function Control for Fitness Machine

ABSOLUTE MAXIMUM RATING

  • Supply Voltage ( VDD to GND ) -------------------------------------------- 6V
  • Input Voltage Range ------------------------ (GND- 0.3V) to (VDD + 0.3V)
  • Operating Temperature Range -------------------------------- 0℃ to +60℃

ELECTRICAL CHARACTERISTICS ( VDD=3V , GND=0V , Ta=+25℃ , unless otherwise noted )

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Operating Voltage Figure 2.4   5 V
Standby Current HIEN=0V & LOEN=3V   0.2 10 uA
Operating Frequency at OSC2   6K   Hz
Operating Current Figure 300 500 600 uA
Input Signal Level Between A1Ip and A1IN 1     mV
Pulse Out Width Figure at 6KHz   200   mS
Input low voltage pin : CENB     0.8 V
Input high voltage pin : CENB 2.2     V
Output low voltage Iout = -0.1mA, pin : PULSE, HDATA     0.5 V
Output high voltage Iout = 0.1mA, pin : PULSE, HDATA 2.5     V

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Data Format

PIN DESCRIPTION

PIN NO.

PIN NAME

I/O

FUNCTIONAL DESCRIPTION

1 A1O OUT Output of first amplifier
2 NC    
3 A1IN IN Negative input of first amplifier
4 A1IP IN Positive input of first amplifier
5 COM OUT Common reference voltage
6 VDD1 - First Positive power supply
7 VDD2 - Second Positive power supply
8 CENB IN High active chip enable input
9 OSC1 IN Oscillator input
10 OSC2 I/O Oscillator output
11 HDATA OUT Hand Touch Data output
12 PULSE OUT Pulse output
13 GND2 - Second Ground of power supply
14 GND1 - First Ground of power supply
15 A4IN IN Negative input of forth amplifier
16 A4IP IN Positive input of forth amplifier
17 A3O OUT Output of third amplifier
18 A3IN IN Negative input of third amplifier
19 A2O OUT Output of second amplifier
20 A2IN IN Negative input of second amplifier

Figure: Application Circuit

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