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DG444DYZ
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Product Detailed Parameters
- Description：IC SWITCH SPST-NCX4 85OHM 16SOIC
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tube
- Switch Circuit：SPST - NC
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：85Ohm
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：5V ~ 34V
- Voltage - Supply, Dual (V±)：±5V ~ 22V
- Switch Time (Ton, Toff) (Max)：250ns, 140ns
- -3db Bandwidth：-
- Charge Injection：-1pC
- 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
- Grade：-
- Qualification：-
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Overview
The DG444DYZ is a monolithic CMOS analog switch manufactured by Renesas Electronics Corporation, housed in a 16-lead SOIC-Narrow surface-mount package. It integrates four independent single-pole single-throw (SPST) channels. The device supports single supply voltages from 5 V to 34 V or dual supplies from ±5 V to ±20 V. Key electrical specifications include a maximum on-resistance of 85 Ohms, a maximum turn-on time of 250 ns, and a maximum turn-off time of 140 ns. It operates within a temperature range of -40°C to +85°C and features a maximum power supply current of 1 µA.
Feature Summary
- Integrates four independent SPST analog switches on a single monolithic CMOS chip
- Supports both single-ended and split dual power supply configurations
- Features TTL and CMOS compatible digital input logic levels
- Includes an epitaxial layer to prevent latch-up associated with older CMOS technologies
Applications
- Data acquisition systems requiring signal routing
- Process control loops for sensor signal switching
- Audio and video signal path selection
- Sample and hold circuits
Procurement Notes
Verify the specific suffix 'DYZ' confirms the SOIC-Narrow-16 package and industrial temperature grade. Confirm RoHS compliance status through official manufacturer documentation prior to ordering. Ensure handling procedures account for moisture sensitivity level requirements during storage and assembly processes.
Selection Notes
Select this component when four independent SPST switches are required in a compact surface-mount footprint. Compare against the DG442DYZ if lower leakage or different packaging is needed. Verify that the 85 Ohm on-resistance meets the signal integrity requirements of the application circuit compared to lower resistance alternatives.
Part Context
The DG444DYZ belongs to the DG44x series of high-voltage CMOS analog switches. This family provides drop-in replacements for legacy devices with improved performance characteristics such as reduced charge injection and faster switching speeds. The part utilizes a high-voltage silicon-gate process to handle large analog signals.
Replacement Considerations
The DG442DYZ serves as a functional substitute within the same series, offering identical pinout and configuration but potentially differing in leakage specifications or packaging variants.
