GENERAL DESCRIPTION
The HL8058 Heart Pulse Detector is a differential-sensing electrocardiogram heart pulse detection IC. The preamplifier is built in as a differential input amplifier for preprocessing heart pulse signal from input sensors. There are four amplifiers can be configured as low pass filter and band pass filter for further heart pulse signal processing. There is an internal digital processor which tracks input digital signals and produce digital pulse signal by suppressing noise signals which produced with pulse signal from input sensors.
FEATURES
- Smart design for amplifying and filtering pulse signal
- Built in automatic gain control
- Built in noise cancellation circuit
- Built in Oscillator circuit
- Good ESD protection
- Anti-shaking circuit design
ABSOLUTE MAXIMUM RATING
Supply Voltage (VDD to GND) ------------------------- 6V
Input Voltage Range ------------------------- (GND- 0.3V) to (VDD + 0.3V)
Operating Temperature Range ------------------------ -2 0℃ to +60℃
ELECTRICAL CHARACTERISTICS ( VDD=3V , VSS=0V ,Ta=+25℃ , unless otherwise noted )
ELECTRICAL CHARACTERISTICS
HL8058A (VDD=5V, GND=0V, Ta=+25℃, unless otherwise noted)
PARAMETER |
CONDITIONS |
MIN |
TYP |
MAX |
UNITS |
| Operating Voltage | Figure 1 | 3 | 5 | V | |
| Standby Current | HILOEN= 5V & ENB=5V, Figure 1 | 0.01 | uA | ||
| Operating Current | VDD=5V,Figure 1 | 2.7 | mA | ||
| Pulse Width of PULSE | VDD=5V, Figure 1 | 170 | mS | ||
| Input low voltage | Pin: HILOEN,SLA,SLB,ENB | 0.8 | V | ||
| Input high voltage | Pin: HILOEN,SLA,SLB,ENB | 4.2 | V | ||
| Output low voltage | Iout = -0.1mA , pin : PULSE | 0.1 | V | ||
| Output high voltage | Iout = 0.1mA, pin: PULSE | 4.9 | V |
HL8058B(VDD=3V, GND=0V, Ta=+25℃, unless otherwise noted)
PARAMETER |
CONDITIONS |
MIN |
TYP |
MAX |
UNITS |
| Operating Voltage | Figure 1 | 2.3 | 3 | V | |
| Standby Current | HILOEN= 5V & ENB=5V, Figure 1 | 0.01 | uA | ||
| Operating Current | VDD=3V, Figure 1 | 1.56 | mA | ||
| VDD=5V, Figure 1 | 4.8 | mA | |||
| Pulse Width of PULSE | VDD=3V, Figure 1 | 170 | mS | ||
| Input low voltage | Pin: HILOEN,SLA,SLB,ENB | 0.8 | V | ||
| Input high voltage | Pin: HILOEN,SLA,SLB,ENB | 2.2 | V | ||
| Output low voltage | Iout = -0.1mA , pin : PULSE | 0.1 | V | ||
| Output high voltage | Iout = 0.1mA, pin: PULSE | 2.9 | V |
OPERATION OF THE SYSTEM
Degree of Anti-Shaking function:
TYPICAL APPLICATION CIRCUIT
