ON Semiconductor

LC717A00AR
Demoboard TS-GEVB

Capacitance-Digital-Converter for Electrostatic Capacitive Touch Sensors

Topology: Other

Description

The LC717A00AR is a high-performance, low-cost capacitance-digital-converter LSI for electrostatic capacitive touch sensor, especially focused on usability. It has 8 channels capacitance-sensor input. The built-in logic circuit can detect the state (ON/OFF) of each input and output the result. This makes it ideal for various switch applications. The calibration function is automatically performed by the built-in logic circuit during power activation or whenever there are environmental changes. In addition, since initial settings of parameters, such as gain, are configured, LC717A00AR can operate as stand-alone when the recommended switch pattern is applied. Also, since LC717A00AR has a serial interface compatible with I2C and SPI bus, parameters can be adjusted using external devices whenever necessary. Moreover, outputs of the 8-input capacitance data can be detected and measured as 8-bit data.

Characteristics

  • Detection system: Differential capacitance detection (Mutual capacitance type) • High sensitivity performance
  • even wearing multiple layers of gloves, air gap, or thick materials • Input capacitance resolution: Can detect capacitance changes in the femto Farad order • Design friendly
  • can be connected directly to a familiar MCU and execute stand alone operation • Measurement interval (8 differential inputs): 18ms (Typ) (at initial configuration),3ms (Typ) (at minimum interval configuration) • Automated built-in noise and environmental change compensation function technology • External components for measurement: Not required • Current consumption: 320 µA (Typ) (VDD = 2.8 V), 740 µA (Typ) (VDD = 5.5 V) • Supply voltage: 2.6 V to 5.5 V • Detection operations: Switch • Interface: I2C compatible bus or SPI selectable.

Products

  Order Code SPEC Product series C
(nF)
Tol. C VR
(V (DC))
Bauform H
(mm)
DF
(%)
Keramiktyp Technische Artikelnummer Betätigungskraft
(g)
Actuator-Farbe VPE λDom typ.
(nm)
Farbe λPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chiptechnologie 50% typ.
(°)
Pins Reihen Gender Typ IR
(A)
Verpackung Farbe Samples
885012206046 PDF WCAP-CSGP MLCCs 16 V(DC) 100 ±10% 16 0603 0.8 3.5 X7R Class II X7R0603104K016DFCT10000
885012206052 PDF WCAP-CSGP MLCCs 16 V(DC) 1 ±10% 16 0603 0.8 10 X7R Class II X7R0603105K016DFCT10000
885012107014 PDF WCAP-CSGP MLCCs 16 V(DC) 10 ±20% 16 0805 1.25 10 X5R Class II X5R0805106M016DFCT10000
885012208041 PDF
430182043816 PDF WS-TASV SMT Tact Switch 6x6 mm 4.3 160 Black 1000
150060VS75000 PDF WL-SMCW SMT Mono-color Chip LED Waterclear 570 Bright Green 572 40 2 AlInGaP 140
150060RS75000 PDF WL-SMCW SMT Mono-color Chip LED Waterclear 625 Red 630 250 2 AlInGaP 140
61300311121 PDF WR-PHD 2.54 mm THT Pin Header 3 Single Pin Header Straight 3 Bag
60900213421 PDF WR-PHD 2.54 mm Multi-Jumper Jumper with Test Point 1 Jumper 3 Bag Black
61300211121 PDF WR-PHD 2.54 mm THT Pin Header 2 Single Pin Header Straight 3 Bag
61301221021 PDF