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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 (NC) 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+' against the manufacturer's current documentation to confirm the package type and lead-free status. Confirm the operating temperature grade corresponds to the 'D' designation (-40°C to +85°C). Ensure the ordering information matches the latest datasheet revision as component specifications may be updated.
Selection Notes
Select this part when a normally closed SPST configuration is required. Compare the 60Ω typical on-resistance and switching speeds against alternatives like the DG308A if normally open contacts are needed. Verify that the single or dual supply voltage ranges align with the system power architecture.
Part Context
This component belongs to the DG308A/DG309 family of quad SPST analog switches. The DG309 variant specifically provides normally closed functionality, whereas the DG308A offers normally open contacts. Both share identical pinouts and general electrical characteristics, differing primarily in their default contact state.
Replacement Considerations
DG308ADY+
FAQ
What is the difference between the DG308A and DG309?
The DG308A features normally open (NO) SPST contacts, while the DG309 features normally closed (NC) SPST contacts. All other electrical characteristics and pin configurations remain identical.
Can the DG309 operate with a single supply?
Yes, the DG309 can operate with a single positive supply ranging from +5V to +30V, in addition to split supplies from ±5V to ±20V.
What is the maximum analog signal range?
The analog signal range is limited by the supply voltages. For split supplies of ±15V, the range is typically -15V to +15V. The device has a 44V maximum breakdown voltage rating.
