Datasheet MAX30102 (Maxim) - 5

MAX30102 High-Sensitivity Pulse Oximeter and Heart-Rate Sensor for Wearable Health
Electrical Characteristics (continued)
(VDD = 1.8V, VLED+ = 5.0V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS I2C TIMING CHARACTERISTICS (SDA, SDA, INT) (Note 3)
I2C Write Address AE Hex I2C Read Address AF Hex Serial Clock Frequency fSCL 0 400 kHz Bus Free Time Between STOP and START Conditions tBUF 1.3 µs Hold Time (Repeated) START Condition tHD;STA 0.6 µs SCL Pulse-Width Low tLOW 1.3 µs SCL Pulse-Width High tHIGH 0.6 µs Setup Time for a Repeated START Condition tSU;STA 0.6 µs Data Hold Time tHD;DAT 0 900 ns Data Setup Time tSU;DAT 100 ns Setup Time for STOP Condition tSU;STO 0.6 µs Pulse Width of Suppressed Spike tSP 0 50 ns Bus Capacitance CB 400 pF SDA and SCL Receiving Rise Time tR 20 + 0.1CB 300 ns SDA and SCL Receiving Fall Time tRF 20 + 0.1CB 300 ns SDA Transmitting Fall Time tTF 300 ns
Note 1:
All devices are 100% production tested at TA = +25°C. Specifications over temperature limits are guaranteed by Maxim Integrated’s bench or proprietary automated test equipment (ATE) characterization.
Note 2:
Specifications are guaranteed by Maxim Integrated’s bench characterization and by 100% production test using proprietary ATE setup and conditions.
Note 3:
Guaranteed by design and characterization. Not tested in final production. SDA t t SU,DAT tSU,STA BUF t t LOW HD,STA t t SP HD,DAT tSU,STO t SCL HIGH tHD,STA tR tF START CONDITION REPEATED START CONDITION STOP START CONDITION CONDITION Figure 1. I2C-Compatible Interface Timing Diagram www.maximintegrated.com Maxim Integrated │ 5