NFC forum type 2 tag IC with potentiostat sensor interface – SIC4341

A new 228-byte ISO14443A passive sensor NFC tag with Potentiostat-Style sensors for acquisition interface in wide range of measurements/applications

Sensor Interface Peripheral

• Electrode connection
  • 2 /3 electrodes system
  • On-chip selectable for 2/3 electrode
  • Built-in ADC
• 2 Adjustable 8 bit DACs
  • output range 0 V to 1.275 V
  • Resolution 5 mV / Step
  • Error Voltage
    ⇒ SIC4341H : 2.5 mV
    ⇒ SIC4341G : 5.0 mV
• Built in Potentiostat
  • Selectable current input range
    ⇒ +/-2.5 μA
    ⇒ +/-20.0 μA
  • Bias Voltage Range : -0.8V to 0.8V
• Built in ADC
  • Up to 10-Bit effective resolutions
  • Sample Period : Up to 0.25 sec / sample
• SIC4341H
  ⇒ 40 nAfor input range +/-20.0 μA
  ⇒ 10 nA for input range +/-2.5 μA
• • SIC4341G
    ⇒ 80 nA for input range +/-20.0 μA
    ⇒ 20 nA for input range +/-2.5 μA
• Mode of operation controlled by NFC phone or RFID reader software
  • Amperometry
  • Cyclic Voltammetry

RF Interfaces

• RF interface based on ISO14443A – 106 kbps
• NFC Forum tag type 2
• RF power qualifying scheme before operation

Memory

• 228 bytes addressable EEPROM
• 192bytes user memory EEPROM
• EEPROM organization enabling NDEF format
• EEPROM erase/write cycle up to 100,000 times
• EEPROM memory retention up to 10 years at 70 oC
• EEPROM for initializing register
  • Automatically reload after power up

Operating Conditions

• Operating temperature from 0 oC to 55 oC
• On-chip regulator

QFN Information

• QFN size : 1200 um x 1200 um
• # Pad : 8 Pads
• Au Pad Size : 80 um x 80 um

Applications

• Chemical Sensor NFC Tag
• Bio sensor NFC Tag with potentiostat

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