Overview
The ADG202ATQ, produced by Analog Devices Inc., is a monolithic CMOS device that features four independently selectable single-pole single-throw (SPST) switches. These switches are designed using the enhanced LC2MOS process, which provides an increased signal handling capability of up to ±15 V. The device is well-suited for precision analog signal switching applications due to its high switching speeds, low on-state resistance (RON), and minimal charge injection.
Key Specifications
| Parameter | Value |
|---|---|
| Voltage Supply Range | Single: 10 V to 15 V, Dual: ±10 V to ±15 V |
| Maximum On-State Resistance (RON) | 90 Ohm |
| Channel-to-Channel Matching | 4.5 Ohm |
| Switch Time | On: 300 ns, Off: 250 ns |
| Crosstalk | -80 dB at 100 kHz |
| Charge Injection | 20 pC |
| Channel Capacitance | 5 pF |
| Leakage Current | Maximum of 2 nA |
| Operating Temperature Range | -55°C to 125°C |
| Package | 16-Lead CDIP |
Key Features
- Four independently selectable SPST switches with break-before-make switching action.
- High switching speeds with on-time of 300 ns and off-time of 250 ns.
- Low on-state resistance of 90 Ohm and channel-to-channel matching of 4.5 Ohm.
- Low charge injection of 20 pC and low channel capacitance of 5 pF.
- Minimal leakage current with a maximum of 2 nA.
- Support for both single and dual supply voltages.
- Operating temperature range of -55°C to 125°C.
Applications
- Sensor interface: Connecting various sensors such as temperature, humidity, pressure, and light sensitivity sensors.
- Biometric identification: Functions like fingerprint recognition and iris recognition.
- Internet of Things (IoT): Connecting and communicating between IoT devices, including RFID and Bluetooth chips.
- Data security: Security protection functions such as encryption/decryption chips and security startup chips.
Q & A
- What is the ADG202ATQ? The ADG202ATQ is a monolithic CMOS device featuring four independently selectable SPST switches designed for precision analog signal switching.
- What is the voltage supply range for the ADG202ATQ? The device operates with a single supply range from 10 V to 15 V and a dual supply range from ±10 V to ±15 V.
- What is the maximum on-state resistance (RON) of the ADG202ATQ? The maximum on-state resistance is 90 Ohm.
- What are the switch times for the ADG202ATQ? The switch times are 300 ns for on and 250 ns for off.
- What is the crosstalk specification for the ADG202ATQ? The crosstalk is -80 dB at 100 kHz.
- What is the charge injection of the ADG202ATQ? The charge injection is 20 pC.
- What is the operating temperature range of the ADG202ATQ? The operating temperature range is -55°C to 125°C.
- What package types are available for the ADG202ATQ? The device is available in a 16-Lead CDIP package.
- What are some typical applications of the ADG202ATQ? Typical applications include sensor interfaces, biometric identification, IoT devices, and data security functions.
- Is the ADG202ATQ suitable for high-precision applications? Yes, it is ideal for high-precision applications due to its low charge injection, low channel capacitance, and minimal leakage current.
