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DG444DY+T
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Product Detailed Parameters
- Description：IC SWITCH SPST-NCX4 85OHM 16SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Switch Circuit：SPST - NC
- 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, 140ns
- -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 DG444DY+T is an improved quad single-pole single-throw (SPST) analog switch manufactured by Analog Devices Inc. under the Maxim Integrated brand. It features a CMOS construction housed in a 16-pin SOIC-Narrow package with surface-mount installation. The device supports dual supply voltages ranging from ±4.5 V to ±20 V or a single supply of 10 V to 30 V. Key electrical parameters include a maximum on-resistance of 85 ohms, a maximum operating time of 250 ns, and a maximum off-time of 120 ns. It operates within a temperature range of -40°C to +85°C.
Feature Summary
- Quad SPST configuration for independent signal routing
- CMOS technology for low power consumption
- Improved performance characteristics over previous generations
Applications
- Data acquisition systems
- Industrial process control
- Communications equipment
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lead times prior to ordering. Ensure storage conditions meet moisture sensitivity level requirements. Check for obsolescence notices as this part may have limited availability.
Selection Notes
Select this component when multiple independent analog signal paths are required in a compact form factor. Consider the 85-ohm on-resistance limit for signal integrity requirements. Verify that the 250 ns switching speed meets system timing constraints. Ensure supply voltage ranges align with available power rails.
Part Context
This part belongs to the DG444 series of analog switches. It shares functional similarities with other quad SPST devices but offers specific improvements in switching performance. The DG444 family is designed for general-purpose analog signal switching applications requiring reliable isolation and low distortion.
Replacement Considerations
Check for direct pin-compatible substitutes within the same product line. Verify equivalent electrical specifications such as on-resistance and switching times. Consider newer generation CMOS switches if lower power or faster speeds are needed.
