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DG417DY
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Product Detailed Parameters
- Description：IC SWITCH SPST-NCX1 35OHM 8SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube,Tube
- Switch Circuit：SPST - NC
- 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：-40°C ~ 85°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 DG417DY is a single-pole/single-throw (SPST) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features a maximum on-resistance of 35 ohms and guarantees an on-resistance match of 3 ohms between channels, along with an on-resistance flatness of 4 ohms over the signal range. The device operates from a single +10V to +30V supply or bipolar ±4.5V to ±20V supplies. Key electrical parameters include a maximum turn-on time of 175ns, a maximum turn-off time of 145ns, and a maximum charge injection of 10pC. It supports rail-to-rail signal handling and offers low off-leakage current of less than 5nA at +85°C.
Feature Summary
- Guaranteed on-resistance matching of 3 ohms maximum between switches
- Low power consumption with a maximum dissipation of 35µW
- High electrostatic discharge tolerance of 2000V minimum per Method 3015.7
- TTL/CMOS logic compatible for flexible interface integration
Applications
- Sample-and-Hold Circuits
- Communications Systems
- Test Equipment
- Battery-Operated Systems
- Audio Signal Routing
Procurement Notes
Verify the specific suffix 'DY' corresponds to the -40°C to +85°C temperature range and SOIC-8 package configuration as defined in official documentation. Confirm RoHS compliance status through manufacturer declarations before procurement. Ensure that ordering specifications align with the exact functional requirements of the application design.
Selection Notes
Select this component when a normally closed SPST configuration is required within the DG417 series. Compare against the DG418 if a normally open switch is needed instead. Verify that the bipolar supply voltage range of ±4.5V to ±20V fits the system architecture. Consider the 35 ohm on-resistance limit for signal integrity requirements in the target circuit design.
Part Context
This part belongs to the redesigned DG417/DG418/DG419 family of precision CMOS monolithic analog switches. The series improves upon previous generations by offering guaranteed on-resistance matching and flatness. The DG417 specifically provides the normally closed SPST topology within this enhanced performance family.
Replacement Considerations
The DG417DJ serves as a direct replacement variant utilizing an 8-pin Plastic DIP package while maintaining identical electrical characteristics and functionality.
FAQ
What is the default state of the DG417 switch?
The DG417 is configured as a normally closed (NC) single-pole/single-throw (SPST) switch.
How does the DG417 handle overvoltage conditions?
Signals on the source or drain terminals exceeding the supply rails are clamped by internal diodes. External blocking diodes can be added for additional protection if necessary.
Is the on-resistance flatness guaranteed across the signal range?
Yes, the device guarantees an on-resistance flatness of 4 ohms maximum over the specified analog signal range.
