ADG419TQ – ANALOG DEVICES
Single-Circuit 2:1 Switch IC, 35 Ohm, 8-CERDIP Package
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Overview
The Analog Devices ADG419TQ is a high-performance, single-pole, double-throw (SPDT) analog switch designed for robust signal routing in demanding environments. Its critical operational characteristic is the low on-resistance (35Ω max), ensuring minimal signal attenuation. A key design consideration for this component is managing parasitic capacitance (6pF) which, while low, can impact high-frequency signal integrity and necessitate careful layout and impedance matching to avoid bandwidth limitations, especially in sensitive RF applications.
Key Features
- Switch Circuit: SPDT
- On-State Resistance (Max): 35Ω
- Operating Voltage: ±15V (Dual Supply)
- Channel Capacitance (off): 6pF
- Crosstalk: -90dB @ 1MHz
- Package: 8-CERDIP (Through Hole)
Applications
The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.
- High-fidelity audio signal switching
- Industrial control system analog multiplexing
- Test and measurement equipment signal path selection
- Aerospace and defense communication front-ends
