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Product Detailed Parameters
- Description：IC SW SPST-NCX4 85OHM 16TSSOP
- Series：-
- Mfr：Vishay Siliconix
- Package：Bulk
- Switch Circuit：SPST - NC
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：85Ohm
- Channel-to-Channel Matching (ΔRon)：1.7Ohm
- Voltage - Supply, Single (V+)：4V ~ 44V
- Voltage - Supply, Dual (V±)：±4V ~ 22V
- Switch Time (Ton, Toff) (Max)：200ns, 150ns
- -3db Bandwidth：-
- Charge Injection：1pC
- Channel Capacitance (CS(off), CD(off))：5pF, 5pF
- Current - Leakage (IS(off)) (Max)：500pA
- Crosstalk：-95dB @ 100kHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：16-TSSOP
- Number of Circuits：4
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Overview
The DG309BDQ-E3 is a quad single-pole single-throw (SPST) analog switch from the DG308B/DG309B series, manufactured by Vishay Siliconix. It utilizes a proprietary silicon gate CMOS process and operates within a temperature range of -40 °C to +85 °C. The device supports dual supply voltages up to ±22 V or single supplies up to 44 V. Key electrical parameters include a maximum on-resistance of 100 Ω at full temperature range, turn-on time of 200 ns, and turn-off time of 150 ns. Supply current is typically 1 µA. It is housed in a 16-pin TSSOP package.
Feature Summary
- CMOS compatible logic interface for simple integration
- Improved charge injection compensation design minimizes switching transients
- Epitaxial layer prevents latchup for enhanced reliability
- True bi-directional signal handling capability
Applications
- Sample-and-hold circuits
- Industrial instrumentation
- Test equipment
- Communications systems
- Portable instruments
Procurement Notes
Verify the component status as the base model DG309BDQ is listed as obsolete in distributor records. Confirm availability of the DG309BDQ-E3 variant through authorized channels. Ensure the ordering suffix matches the required RoHS compliance and tape/reel packaging specifications. Cross-reference the datasheet revision G for accurate electrical limits before finalizing procurement.
Selection Notes
Select this part for applications requiring low power consumption and high accuracy with standard CMOS logic levels. The DG309B configuration provides normally closed switches, which differs from the DG308B normally open configuration. Verify that the 100 Ω maximum on-resistance meets the signal integrity requirements for the specific analog path. Ensure the operating voltage does not exceed the ±22 V absolute maximum rating.
Part Context
This component belongs to the DG308B/DG309B family of improved quad CMOS analog switches. It serves as an enhanced successor to the legacy DG308A and DG309 models, offering lower on-resistance, reduced leakage, and faster switching speeds. The 'E3' suffix indicates lead-free construction compliant with RoHS standards, while 'DQ' specifies the 16-lead thin-shrink small outline package.
Replacement Considerations
The DG309BDQ-T1-E3 is a reel-packaged alternative within the same family. For normally open configurations, the DG308BDQ-E3 is the functional counterpart. Legacy replacements include the DG309BDJ-E3 for DIP packages.
