CH448U

CH440G, CH440P, CH440R, CH442Q, CH442E, CH443K, CH443L, CH444G, CH444P, CH448F, and CH448U are analog switch ICs rated for 5V supply voltage, featuring high bandwidth and low on-resistance, with support for 3.3V or lower supply voltages. CH445P is an analog switch IC rated for 3.3V supply voltage, featuring high bandwidth and low on-resistance, with support for 2.5V or lower supply voltages. CH440 and CH445 contain 4 channels of 2:1 low-resistance wideband bidirectional analog switches, forming a 4-channel 2:1 multiplexer suitable for 2:1 switching of video or USB signals. CH442 contains 2 channels of 2:1 low-resistance wideband bidirectional analog switches, forming a dual-channel 2:1 multiplexer suitable for 2:1 switching of video or USB differential signals. CH443 contains 1 channel of 2:1 low-resistance wideband bidirectional analog switches, forming a single-channel 2:1 multiplexer suitable for 2:1 switching of video and other signals, implementing simple logic gate functions such as AND, OR, and NOT, or digital signal level translation between two different voltage domains. CH444 contains 2 channels of 4:1 low-resistance wideband bidirectional analog switches, forming a dual-channel 4:1 multiplexer suitable for 4:1 switching of video or USB differential signals. CH448 contains a pair of differential signal 8:1 low-resistance wideband bidirectional analog switches, forming a dual-channel 8:1 multiplexer suitable for 8:1 switching of video or USB signals. In addition, CH448F supports 16:1 multiplexing by combining control of the two-channel global enable pins.

Key features

• Low on-resistance, Ron typical value ~5Ω
• High bandwidth, supports video signals, low-speed, full-speed, and 480Mbps high-speed USB signals
• Fast switching, Ton/Toff typical value <5nS
• ESD protection: 2KV HBM
• CH440/CH442/CH444/CH445/CH448 provide global enable pins for unified enabling and switching of multi-channel analog switches
• CH448 supports differential signals; CH448F provides independent global enable pins for two signal channels
• CH448/440/442/443/444 control signals are independent of supply voltage, supporting 5V, 3.3V, and 2.5V control signals
• Wide supply voltage range with low quiescent current. 5V switch ICs support rated 5V supply voltage (compatible with 5V ~ 2.5V control signals), operable down to 2.5V supply; 3.3V switch ICs support rated 3.3V supply voltage (compatible with 3.3V ~ 2.5V control signals), operable down to 1.8V supply
• Available in SOP16, TSSOP16, QFN10, QFN16, QFN24, MSOP10, and SOT363 packages, RoHS compliant