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Product Detailed Parameters
- Description：IC SW SPST-NCX4 100OHM 16SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Switch Circuit：SPST - NC
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：100Ohm
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：5V ~ 30V
- Voltage - Supply, Dual (V±)：±5V ~ 20V
- Switch Time (Ton, Toff) (Max)：250ns, 150ns
- -3db Bandwidth：-
- Charge Injection：-10pC
- Channel Capacitance (CS(off), CD(off))：11pF, 8pF
- Current - Leakage (IS(off)) (Max)：5nA
- Crosstalk：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Number of Circuits：4
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Overview
The DG309DY is a quad, single-pole-single-throw (SPST) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features normally closed contacts with a typical on-resistance of 60 Ω and a maximum of 100 Ω. The device supports split supplies from ±5V to ±20V or a single positive supply from +5V to +30V. Key electrical parameters include a turn-on time of 130ns to 200ns, a turn-off time of 90ns to 150ns, and charge injection of -10pC. It operates within a temperature range of -40°C to +85°C and is housed in a 16-pin Narrow SOIC package.
Feature Summary
- CMOS logic compatible inputs for reduced loading
- Monolithic low-power CMOS design
- High breakdown voltage rating for signal blocking
Applications
- Sample-and-Hold Circuits
- Test Equipment
- Communications Systems
- PBX, PABX
- Guidance and Control Systems
Procurement Notes
Verify the specific suffix 'DY' confirms the -40°C to +85°C industrial temperature grade and 16-pin Narrow SOIC package configuration. Confirm RoHS compliance status as original datasheets may predate current environmental directives. Ensure the source document matches the manufacturer's official specifications for the DG309 series before finalizing procurement orders.
Selection Notes
Select this component when a normally closed SPST configuration is required for analog signal routing. The DG309DY is suitable for applications needing fast switching speeds and low on-resistance across a wide analog voltage range. Consider the single-supply operation limitations regarding switching speed if only a positive rail is available compared to split-supply designs.
Part Context
The DG309 belongs to the DG308A/DG309 family of quad SPST analog switches. While the DG308A provides normally open contacts, the DG309 provides normally closed contacts. Both share identical pinouts and electrical characteristics except for the contact state. This family utilizes monolithic CMOS technology to achieve low power consumption and high isolation.
Replacement Considerations
Direct pin-compatible alternatives within the same family include the DG308ADY for normally open configurations. Verify that any substitute maintains the 16-pin Narrow SOIC footprint and meets the -40°C to +85°C operating temperature requirements specified for the DY suffix.
