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DG445DY+T
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Product Detailed Parameters
- Description：IC SWITCH SPST-NOX4 85OHM 16SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Switch Circuit：SPST - NO
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：85Ohm
- Channel-to-Channel Matching (ΔRon)：4Ohm (Max)
- Voltage - Supply, Single (V+)：10V ~ 30V
- Voltage - Supply, Dual (V±)：±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max)：250ns, 170ns
- -3db Bandwidth：-
- Charge Injection：5pC
- Channel Capacitance (CS(off), CD(off))：4pF, 4pF
- Current - Leakage (IS(off)) (Max)：500pA
- Crosstalk：-100dB @ 1MHz
- 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 DG445DY+T is a quad single-pole single-throw (SPST) analog switch manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a single supply voltage range of 10 V to 30 V or dual supplies of ±4.5 V to ±20 V. The device features a maximum on-resistance of 85 Ohms and supports a DC switch current of 30 mA. Electrical performance includes a maximum turn-on time of 250 ns and a maximum turn-off time of 120 ns. Power dissipation is rated at 696 mW, with a maximum supply current of 1 uA. It functions reliably across an operating temperature range from -40°C to +85°C.
Feature Summary
- Integrates four independent SPST switches in a compact surface-mount package
- Supports both single and dual power supply configurations for flexible system design
- Provides low power consumption suitable for battery-operated applications
Applications
- Signal routing in data acquisition systems
- Audio signal switching and multiplexing
- Communication equipment interface circuits
Procurement Notes
Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status as indicated in official documentation. Ensure storage conditions maintain moisture sensitivity level integrity prior to soldering. Cross-reference ordering suffixes to confirm tape-and-reel packaging specifications match project requirements.
Selection Notes
Select this component when requiring four isolated analog paths with moderate on-resistance. Verify that the 85 Ohm on-resistance meets signal integrity requirements for the specific application bandwidth. Ensure supply voltages remain within the specified 10 V to 30 V single or ±4.5 V to ±20 V dual ranges. Consider thermal dissipation limits given the 696 mW power rating in the SOIC-Narrow-16 package.
Part Context
This part belongs to the DG445 series of improved quad SPST analog switches. It shares functional characteristics with other variants like DG445DJ+ and DG445DY+, differing primarily in packaging type. The series is designed for general-purpose analog signal switching applications requiring reliable performance across industrial temperature ranges.
Replacement Considerations
DG445DJ+ offers identical electrical specifications in a PDIP-16 through-hole package. DG445DY+ provides the same SOIC-Narrow-16 form factor but in tube packaging instead of tape-and-reel. Verify pin compatibility and thermal performance when substituting between these variants.
