AS7024

AS7024 Biosensors General Description The AS7024 device provides a flexible analog front end for light sensing applications. The photodiode input circuit can be configured in different ways to guarantee best tradeoff between speed and sensitivity for a large number of different sensing applications. AS7024 is targeted for wearables (fitness band, smart watch). Ordering Information and Content Guide appear at end of datasheet. Figure 1: Added Value of Using AS7024 Key Benefits and Features The benefits and features of AS7024, Biosensors are listed below: Benefits Allows smallest application size e.g. narrow HRM measurement band Good HRM measurement quality Additional information for end user Long operating time Works reliably with ambient light Features Single device integrated optical solution Low noise analog optical front end Analog electrical front end (e.g. for temperature sensing using a NTC or galvanic skin resistivity (GSR)) Hardware sequencer to offload processor Adjustable LED driver with current control Synchronous demodulator ams Datasheet [v1-04] 2018-Sep-11 Page 1 Document Feedback Figure 2: Application Schematic AS7024 AS7024 − General Description Applications The device is suitable for optical sensor platform. VD1 ECG_INP ECG_INN ECG_REF SDA SCL VBAT INT 2.7V-5.5V VDD V_LDO GND VD3 LED1 LED4 Optical barrier I2C, Optical & Electrical Frontend, ECG Amp. IR VD4 ENABLE GPIO3 GPIO2 GPIO1 GPIO0 LDO SIGREF Ref AGND Optic...