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DG418CY+T
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Product Detailed Parameters
- Description：IC SWITCH SPST-NOX1 35OHM 8SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Switch Circuit：SPST - NO
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：35Ohm
- Channel-to-Channel Matching (ΔRon)：3Ohm (Max)
- Voltage - Supply, Single (V+)：10V ~ 30V
- Voltage - Supply, Dual (V±)：±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max)：175ns, 145ns
- -3db Bandwidth：-
- Charge Injection：3pC
- Channel Capacitance (CS(off), CD(off))：8pF, 8pF
- Current - Leakage (IS(off)) (Max)：250pA
- Crosstalk：-85dB @ 1MHz
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Number of Circuits：1
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Overview
The DG418CY+T is a precision CMOS analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features a single SPST configuration housed in an 8-SOIC surface-mount package. The device supports dual supply voltages ranging from ±4.5 V to ±20 V or a single supply of 10 V to 30 V. Key electrical specifications include a maximum on-resistance of 35 Ohms, a channel-to-channel matching of 3 Ohms, and a leakage current of 250 pA. Switching times are specified at a maximum of 175 ns for turn-on and 145 ns for turn-off. The component operates within a temperature range of -40°C to +85°C.
Feature Summary
- Precision CMOS technology ensures low distortion and high signal integrity
- Low on-resistance with tight channel-to-channel matching for accurate signal routing
- Ultra-low leakage current minimizes signal loss in open states
- Compatible with standard logic families for flexible control interface
Applications
- Data acquisition systems requiring precise signal switching
- Audio signal routing and processing circuits
- Instrumentation front-ends for sensor multiplexing
- Communication equipment for line termination and selection
Procurement Notes
Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status as '+T' variants typically adhere to environmental standards. Check manufacturer documentation for lead-free soldering profiles compatible with the SOIC-8 package. Ensure availability aligns with current production lifecycle status.
Selection Notes
Select this component for applications demanding low on-resistance variation between channels. The SOIC-8 package suits space-constrained surface-mount designs. Verify that the required voltage range fits within the ±4.5 V to ±20 V dual supply limits. Consider the 175 ns switching speed for timing-critical digital control interfaces.
Part Context
The DG418 belongs to the Maxim Integrated precision analog switch family, designed for high-performance signal conditioning. It complements other devices like the DG417 and DG419 in offering robust switching capabilities. The CY variant specifically denotes the plastic small-outline package, while the '+' indicates RoHS compliance.
Replacement Considerations
Direct pin-compatible alternatives within the same family include the DG418CJ and DG418DJ. Verify package compatibility when substituting DIP versions for SOIC. Cross-reference datasheets for identical on-resistance and switching time parameters.
