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DG419CY
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Product Detailed Parameters
- Description：IC SWITCH SPDT X 1 35OHM 8SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- 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 DG419CY is a precision, monolithic CMOS single-pole/double-throw (SPDT) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features guaranteed on-resistance matching of 3 Ω maximum and on-resistance flatness of 4 Ω maximum over the signal range. The device operates from a single +10V to +30V supply or bipolar ±4.5V to ±20V supplies. Key electrical specifications include a maximum on-resistance of 35 Ω, charge injection of 10 pC maximum, and off-leakage current less than 5 nA at +85°C. It provides an ESD tolerance of 2000V minimum per Method 3015.7 and switching times of less than 175 ns for turn-on and 145 ns for turn-off.
Feature Summary
- Guaranteed low on-resistance matching between channels and flatness over the signal range.
- Low power consumption with ultralow off-leakage current performance across temperature ranges.
- High electrostatic discharge (ESD) tolerance capability exceeding 2000V.
- TTL and CMOS logic compatible inputs for flexible interface integration.
Applications
- Sample-and-Hold Circuits
- Precision Test Equipment
- Battery-Operated Systems
Procurement Notes
Verify the specific suffix 'CY' against the manufacturer's ordering information to confirm the 0°C to +70°C commercial temperature range and 8-pin Plastic DIP package configuration. Ensure compatibility with system voltage requirements and logic levels before procurement.
Selection Notes
Select this component when precise channel-to-channel resistance matching is critical for signal integrity. The DG419CY is suitable for applications requiring rail-to-rail signal handling and low distortion in audio or instrumentation paths where bipolar or unbalanced single supplies are utilized.
Part Context
The DG419CY belongs to the DG417/DG418/DG419 series of improved SPST/SPDT analog switches. This series represents a redesign of industry-standard devices, offering enhanced performance metrics such as reduced charge injection and improved leakage characteristics compared to older generations.
Replacement Considerations
The datasheet identifies these devices as plug-in upgrades for industry-standard DG417/DG418/DG419 devices. Verify pinout compatibility and electrical parameter improvements when substituting legacy parts.
