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ts04

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by Ray

AD Semicon Touch Sensors, SOP-14. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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TS04

AD Semicon · Touch Sensors · SOP-14

TS04 from AD Semicon, in a SOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground / VSS supply reference. Datasheet notes 'Connect to GND'. Tie to system ground.
2 VDD power_in Positive supply input, 2.5V to 5.5V (absolute max 6.0V). Requires a decoupling capacitor (typ 1uF) between VDD and GND placed as close as possible to the device.
3 RBIAS passive Internal bias adjust input. Connect an external resistor R_B (typ 510kΩ at 3.3V; recommended 200k-820k at 3.3V or 330k-1200k at 5.0V) between this pin and GND to set the sense oscillator frequency, internal clock frequency and bias current. Lower R_B is recommended in noisy environments.
4 CS1 input Channel 1 capacitive sensor input. Connect to touch pad through an optional 200Ω-1kΩ series resistor R_S1 and a parallel sensitivity-setting capacitor C_S1 (typ 10pF) to GND. Sensitivity increases as C_S decreases; max sense input capacitance 100pF.
5 CS2 input Channel 2 capacitive sensor input. Connect to touch pad through an optional 200Ω-1kΩ series resistor and a parallel sensitivity-setting capacitor (typ 10pF) to GND.
6 CS3 input Channel 3 capacitive sensor input. Connect to touch pad through an optional 200Ω-1kΩ series resistor and a parallel sensitivity-setting capacitor (typ 10pF) to GND.
7 Dummy input Internal noise monitoring input. Datasheet explicitly states 'Do not connect to anywhere' - leave floating (not tied to GND or any signal).
8 GND power_in Supply ground. Second ground return for the analog/sensor side of the device.
9 CS4 input Channel 4 capacitive sensor input. Connect to touch pad through an optional 200Ω-1kΩ series resistor and a parallel sensitivity-setting capacitor (typ 10pF) to GND. CS4 is slightly less sensitive than CS1-CS3 due to different internal parasitic capacitance.
10 OUT1 output Open-drain NMOS digital output for channel 1. Active-low when a touch is detected on CS1. Requires an external pull-up to VDD (typ 10kΩ, must be a few kΩ or larger). Max sink current 4mA.
11 OUT2 output Open-drain NMOS digital output for channel 2. Active-low when a touch is detected on CS2. Requires an external pull-up to VDD (typ 10kΩ). Max sink current 4mA.
12 GND power_in Supply ground. Third ground return, adjacent to the digital outputs.
13 OUT3 output Open-drain NMOS digital output for channel 3. Active-low when a touch is detected on CS3. Requires an external pull-up to VDD (typ 10kΩ). Max sink current 4mA.
14 OUT4 output Open-drain NMOS digital output for channel 4. Active-low when a touch is detected on CS4. Requires an external pull-up to VDD (typ 10kΩ). Max sink current 4mA.

Key specifications

Parameter Value
Manufacturer AD Semicon
Package SOP-14
Category Sensor
Pins 14

Ordering variants

  • TS04
  • TS04-Q

CAD (KiCad official)

  • Symbol: TS04
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOP-14 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: AD Semicon datasheet (None pp, sha256 145a8f8f7804efc4, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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