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See Technical Specifications

ZSSC3123AI1B

Sensor Interface WAFER (UNSAWN) - BOX

Manufacturer:

Renesas Electronics
Mfr.Part #:

ZSSC3123AI1B
Datasheet:

ZSSC3123AI1B Datasheet (PDF)
Type:

Capacitive Sensor Signal Conditioner with Digital Output
Interface Type:

I2C, Serial, SPI
Supply Voltage - Max:

5.5 V
Supply Voltage - Min:

2.3 V

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

ZSSC3123AI1B General Description

The ZSSC3123 cLite™ is a CMOS integrated circuit for accurate capacitance-to-digital conversion and sensor-specific correction of capacitive sensor signals. Digital compensation of sensor offset, sensitivity and temperature drift is accomplished via an internal digital signal processor running a correction algorithm with calibration coefficients stored in a nonvolatile EEPROM. The ZSSC3123 is configurable for capacitive sensors with capacitances up to 260pF and a sensitivity of 125aF/LSB to 1pF/LSB depending on resolution, speed, and range settings. It is compatible with both single capacitive sensors (both terminals must be accessible) and differential capacitive sensors. Measured and corrected sensor values can be output as I2C, SPI, PDM, or alarms. The I2C interface can be used for a simple PC-controlled calibration procedure to program a set of calibration coefficients into an on-chip EEPROM. The calibrated ZSSC3123 and a specific sensor are mated digitally: fast, precise, and without the cost overhead of trimming by external devices or laser.

Key Features

Maximum target input capacitance: 260pF
Sampling rates as fast as 0.7ms @ 8-bit, 1.6ms @ 10-bit, 5.0ms @ 12-bit, 18.5ms @ 14-bit
Digital compensation of sensor: piece-wise 1st and 2nd order sensor compensation or up to 3rd order single-region sensor compensation
Digital compensation of 1st and 2nd order temperature gain and offset drift
Internal temperature compensation reference (no external components)
Programmable capacitance span and offset
Layout customized for die-die bonding with sensor for low-cost, high-density chip-on-board assembly
Accuracy as high as ±0.25% full-scale output @ -40°C to 125°C, 3V, 5V, Vsupply ±10% (see data sheet section 1.3 for restrictions)

Specifications

Product Category	Sensor Interface	Type	Capacitive Sensor Signal Conditioner with Digital Output
Interface Type	I2C, Serial, SPI	Supply Voltage - Max	5.5 V
Supply Voltage - Min	2.3 V	Operating Supply Current	100 uA
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature	+ 125 C
Mounting Style	SMD/SMT	Development Kit	ZSSC3123KITV1.0
Features	CMOS Integrated	Height	0 mm
Input Type	Differential	Length	0 mm
Number of Channels	1 Channel	Operating Supply Voltage	2.3 V to 5.5 V
Output Current	20 mA	Output Type	Open Drain, Push-Pull
Product	Capacitive Sensor Signal Conditioners	Product Type	Sensor Interface
Reference Type	External, Internal	Series	ZSSC3123
Factory Pack Quantity	9000	Subcategory	Interface ICs
Width	0 mm