Chronopotentiometric sensor interface with NFC Type 2 – SIC4340
$389.35
SIC4340, Chronopotentiometric sensor interface with NFC type 2 QFN 0.85 mm, Canister, IC x 100 psc.
Type: RFID IC
Packing: Retail Package, Canister
PCODE: P40CVQK4P20UT4010C2
Order Quantity: 100 psc per order
Shipping: Approximatrly 30-45 days From Silicon Craft Technology, Bangkok, Thailand
Please note: This product is sold in minimum order quantities. Orders must meet the required MOQ to proceed. For bulk order, please direct contact us.
SIC4340
Galvanostat Sensor
DOWNLOAD USER MANUAL236-Byte NFC Type 2 Tag IC with built-in ADC for galvanostat sensor interface
SIC4340 is a 236-byte NFC tag IC for resistive/capacitive sensor interface which can apply for chemical sensor, light sensor etc. The SIC4340 consists of an NFC Analog-Front-End circuit supporting ISO14443A, a selectable 5-to-10 bit resolution sigma-delta ADC, an on-chip regulator, a sensor interface circuit,a temperature compensate voltage reference, a control register page and an EEPROM. The SIC4340 is designed to get sensor’s voltage response at specific time after biasing. The sensor can be resistive, capacitive or combination of them.
| Product Attributes | Description |
|---|---|
| Working Principle | Chip excites sensor with current, then measures the changes in sensor through voltage |
| Power Management | RF On-chip regulator 1.9 V |
| Communication Interface | NFC Type 2 Tag ISO14443A |
| Current Source
|
Bias Wave Form:
Bias Current Range, Resolution:
Resolution:
Current Accuracy:
|
| Analog Input Impedance
|
Input buffer is enabled: > 10 MΩ Input buffer is disabled: 18 – 42 kΩ |
| Measured Accuracy | ± 2.5 mV |
| Package / Case | QFN16L 3×3 |
DEVELOPMENT KIT SUPPORT MATERIAL
- Demo iOS/android application
- Reference PCB design and schematic diagram
- Reference antenna and antenna design tool
Sensor Interface
Galvanostat sensor interface circuit
- Voltage is measured by applying current source
- Effective voltage range: 0.12 to 1.2V
Programmable current source
- 2 ranges
- 8 – 504 µA @ 8µA/Step ± 4 µA
- 1 – 63µA @ 1µA/Step ± 0.5 µA
Built-in ADC
- 10-Bit accuracy
- Selectable post processing average
- Adjustable conversion starting point to avoid uplink to ensure power stability.
- Configurable built-in voltage buffer for high impedance sensor
- 1.28V temperature compensate voltage reference
- Conversion rate from 8 ms to 205 ms
Adjustable voltage limiter for preventing sensor burning or overvoltage
- 1.28 V
Adjustable sensor biasing frequency for supporting wide capacitance-range sensor
- 300 Hz – 50 kHz
Adjustable sensor biasing frequency for supporting wide capacitance-range sensor
- 10 – 1,808 µs
Adjustable sensor biasing frequency for supporting wide capacitance-range sensor
- 8 – 491,528 clocks/ f,adc
Memory
- 236 bytes addressable EEPROM
- 192 bytes user memory EEPROM
- EEPROM organization enabling NDEF format
- EEPROM zone for initializing register – automatically reload after powerup
- Up to 100,000 erase/write cycles
- Up to 10 years memory retention at 70˚C
Operating Conditions
- Operating temperature: 0℃ to 55℃
- Storage temperature: -40℃ to 85℃
Applications
- Chemical sensor NFC tag
- Resistor/capacitor measurement
- Light/ humidity sensing NFC tag
- Temperature sensor
- Water TDS(Total dissolved solid)
Electrical Conductivity Sensor Interface Chip
DEVELOPMENT KIT SUPPORT MATERIAL
- Demo iOS/android application
- Reference PCB design and schematic diagram
- Reference antenna and antenna design tool
Download
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