LT1203CN8#PBF

Analog Switches - Special Purpose Overview

The LT1203CN8#PBF is a wideband video multiplexer manufactured by Analog Devices Inc. It features a single SPDT configuration housed in an 8-lead PDIP package. The device provides a -3dB bandwidth of 150MHz and maintains 0.1dB gain flatness up to 30MHz. It operates on dual supply voltages ranging from ±5V to ±15V, with a maximum supply voltage of ±18V. Key electrical parameters include a high slew rate of 300V/μs, channel-to-channel switching time of 25ns, and propagation delay of 2.9ns. The component ensures excellent signal integrity with channel separation greater than 90dB at 10MHz, differential gain of 0.02%, and differential phase of 0.02°. Output short-circuit protection is included.

Analog Switches - Special Purpose Feature Summary

• High-speed pixel switching capability with fast transition times suitable for broadcast quality routing
• Low switching transient amplitude of 50mV prevents interference with shared input lines
• High disabled output impedance allows multiple devices to be tied together for crosspoint matrices
• Integrated buffer interfaces directly to standard TTL or CMOS logic inputs

Analog Switches - Special Purpose Applications

• Broadcast quality video multiplexing
• Picture-in-picture switching systems
• HDTV signal routing
• Computer graphics display drivers
• Video routers and crosspoint matrices

Analog Switches - Special Purpose Procurement Notes

Verify the specific ordering suffix CN8 corresponds to the commercial grade 8-lead PDIP package. Confirm the temperature range requirements align with the specified 0°C to 70°C operating limit. Ensure the power supply design accommodates the ±5V to ±15V dual supply specification. Check for availability of industrial grade variants if extended temperature operation is required.

Analog Switches - Special Purpose Selection Notes

Select this component for applications requiring wide bandwidth and low distortion in video signal paths. Consider the LT1205 if a dual-channel 4-input, 2-output configuration is needed. Evaluate the PCB layout requirements for ground plane usage to maintain high channel separation. Verify that the logic levels match the TTL or CMOS interface requirements of the control system.

Analog Switches - Special Purpose Part Context

The LT1203 is part of the LT1203/LT1205 family of 150MHz video multiplexers. It is fabricated using Linear Technology's proprietary complementary bipolar process. The CN8 suffix denotes the 8-lead plastic DIP package variant. This series is designed for high-performance video switching applications where speed and signal fidelity are critical.

Analog Switches - Special Purpose Replacement Considerations

The LT1205 serves as the dual-channel counterpart within the same family. For direct replacement, verify pin compatibility and package dimensions. No other specific substitute part numbers are documented in the provided source material.