DG190AP

Analog Switches, Multiplexers, Demultiplexers Overview

The DG190AP is a precision dual single-pole, double-throw (SPDT) analog switch manufactured by Vishay Siliconix. It integrates four n-channel JFET transistors with a TTL-compatible bipolar driver to provide accurate switching of video and audio signals. The device features constant on-resistance over the entire analog range and break-before-make switching action to eliminate crosstalk. Key electrical parameters include a maximum on-resistance of 30 ohms at room temperature and 75 ohms across the full temperature range. Leakage currents are minimized to less than 2 nA in the on state. The component operates within an extended temperature range of -55 °C to +125 °C and utilizes a 16-pin sidebraze ceramic package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Constant on-resistance over the entire analog signal range
• Break-before-make switching action for low crosstalk
• Low leakage current for high precision
• TTL-compatible bipolar driver

Analog Switches, Multiplexers, Demultiplexers Applications

• Audio switching
• Video switching
• Sample/hold circuits
• Guidance and control systems
• Aerospace applications

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'AP' confirms the -55 °C to +125 °C operating temperature range and 16-pin sidebraze package configuration. Confirm RoHS compliance status as the datasheet indicates non-compliance for standard versions. Validate that the ordering part number matches the required military or commercial grade specifications before finalizing procurement orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the DG190AP when a moderate on-resistance of 30 ohms is acceptable compared to the lower resistance options in the series. Ensure the application requires dual SPDT topology with TTL logic compatibility. Verify that the 16-pin sidebraze package fits the mechanical constraints. Consider the DG189AP if lower resistance is needed, or the DG191AP if higher current handling is not critical but cost is a factor.

Analog Switches, Multiplexers, Demultiplexers Part Context

The DG190AP belongs to the DG189/190/191 family of high-speed drivers with dual SPDT JFET switches. This series is designed for precision analog signal routing where flat on-resistance characteristics are essential. The devices share identical pinouts and functional blocks, differing primarily in their on-resistance values and associated leakage performance metrics.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Public confirmed substitute part numbers include DG189AP and DG191AP from the same manufacturer. These components share the same package and pinout but offer different on-resistance values. Cross-referencing specific electrical limits against the original design requirements is necessary before substitution.