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Heart Rate Monitor for Wearable Products, 1.7 V to 3.5 V, WLCSP-20

The AD8233ACBZ-R7 is a low noise, heart rate monitor for wearable products in a 20 pin WLCSP package. It is an integrated signal conditioning block for ECG and other biopotential measurement applications. It is designed to extract, amplify and filter small biopotential signals in the presence of noisy conditions such as those created by motion or remote electrode placement. This design allows an ultralow-power ADC or an embedded microcontroller to easily acquire the output signal. The AD8233 implements a two-pole high pass filter for eliminating motion artifacts and the electrode half cell potential. An uncommitted operational amplifier enables the device to create a three-pole, low pass filter to remove additional noise. To improve the common-mode rejection of line frequencies in the system and other undesired interferences, the AD8233 includes an amplifier for driven lead applications (RLD).

  • Low supply current of 50µA, peak to peak voltage noise of 8.5µV (f = 0.5Hz to 40Hz)
  • Leads on/off detection while in shutdown (<1µA) and right leg drive shutdown
  • Common mode rejection ratio of 80dB (DC to 60Hz)
  • 2 or 3 electrode configurations
  • High signal gain (G = 100) with DC blocking capabilities
  • Accepts up to ±300mV of half cell potential, fast restore feature improves filter settling
  • Single supply operation from 1.7V to 3.5V
  • Rail to rail output and internal RFI filter
  • 8KV human body model (HBM) ESD rating
  • Operating temperature range from -40°C to +85°C

Medical, Portable Devices

Technical Doc: AD8233ACBZ-R7  Datasheet

Additional information

Manufacturer Part No.





Available for back order


RoHS Compliant

Pack Quantity



Each (Supplied on Cut Tape)

IC Function

IC Package Type


No. of Pins

Supply Voltage Min

Supply Voltage Max

Operating Temperature Min


Operating Temperature Max


RoHs Phthalates Compliant


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