TTP223 PDF Datasheet – Touch Pad Detector IC

Part Number: TTP223


Package: SOP 6 Pin, SO 8 Pin or SSOP 16 Pin Type

Manufacturer: TT


TTP223 datasheet


The TTP223 datasheet is a touch pad detector IC which offers 1 touch key. The touching detection IC is designed for replacing traditional direct button key with diverse pad size. Low power consumption and wide operating voltage are the contact key features for DC or AC application.

A touchpad detector IC (Integrated Circuit) is a specialized electronic component designed to detect and process touch inputs from a touchpad or touch-sensitive surface. These ICs are commonly used in various electronic devices such as laptops, smartphones, tablets, touch-sensitive control panels, and other consumer electronics.


1. Operating voltage 2.0V~5.5V

2. Operating current @VDD=3V, no load, SLRFTB=1

3. Sensitivity can adjust by the capacitance(0~50pF) outside

4. Have two kinds of sampling length by pad option(SLRFTB pin)

5. Stable touching detection of human body for replacing traditional direct switch key

6. Provides Fast mode and Low Power mode selection by pad option(LPMB pin)

TTP223 pinout

TTP223 pinout datasheet



1. Wide consumer products

2. Water proofed electric products

3. Button key replacement

TTP223 PDF Datasheet

AD8302 Datasheet PDF – RF/IF Gain and Phase Detector

Part Number: AD8302

Function: LF-2.7GHz FR/IF gain and phase detector

Package: 14 Pin Type

Manufacturer: Analog Devices


AD8302 datasheet



The AD8302 is a fully integrated system for measuring gain/loss and phase in numerous receive, transmit, and instrumentation applications. It requires few external components and a single supply of 2.7 V–5.5 V. The ac-coupled input signals can range from –60 dBm to 0 dBm in a 50 Ωsystem, from low frequencies up to 2.7 GHz. The outputs provide an accurate measurement of either gain or loss over a ±30 dB range scaled to 30 mV/dB, and of phase over a 0°–180°range scaled to 10 mV/degree. Both subsystems have an output bandwidth of 30 MHz, which may optionally be reduced by the addition of external filter capacitors. The AD8302 can be used in controller mode to forcethe gain and phase of a signal chain toward predetermined setpoints.


1. Measures Gain/Loss and Phase up to 2.7 GHz
2. Dual Demodulating Log Amps and Phase Detector
3. Input Range –60 dBm to 0 dBm in a 50 System
4. Accurate Gain Measurement Scaling (30 mV/dB)
5. Typical Nonlinearity < 0.5 dB
6. Accurate Phase Measurement Scaling (10 mV/Degree)
7. Typical Nonlinearity < 1 Degree
8. Measurement/Controller/Level Comparator Modes
9. Operates from Supply Voltages of 2.7 V–5.5 V
10. Stable 1.8 V Reference Voltage Output
11. Small Signal Envelope Bandwidth from DC to 30 MHz


1. RF/IF PA Linearization
2. Precise RF Power Control
3. Remote System Monitoring and Diagnostics
4. Return Loss/VSWR Measurements
5. Log Ratio Function for AC Signals

Other data sheets are available within the file:


AD8302 Datasheet PDF Download

AD8302 pdf