DG445DY+

$7.96

Description：IC SWITCH SPST-NOX4 85OHM 16SOIC
Series：-

SKU:da3a107d4c6c Category: Analog Switches, Multiplexers, Demultiplexers Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

Product Detailed Parameters

Description：IC SWITCH SPST-NOX4 85OHM 16SOIC
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tube
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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DG445DY+

Overview

The DG445DY+ is a quad, single-pole/single-throw (SPST) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features four normally open switches in a 16-pin Narrow SO package. The device operates from a single +10V to +30V supply or bipolar ±4.5V to ±20V supplies. Key electrical parameters include a maximum on-resistance of 85 Ohms, an on-resistance match between channels of 4 Ohms max, and on-resistance flatness of 9 Ohms max. Turn-on time is 250 ns maximum, while turn-off time is 120 ns maximum. Charge injection is limited to 10 pC max. The component supports an operating temperature range of -40°C to +85°C.

Feature Summary

Features improved on-resistance matching between channels and guaranteed on-resistance flatness over the signal range.
Provides low charge injection and low power consumption with electrostatic discharge tolerance of 2000V min per Method 3015.7.
Offers reduced off-leakage current over temperature, maintaining less than 5nA at +85°C.

Applications

Sample-and-Hold Circuits
Test Equipment
Heads-Up Displays
Guidance and Control Systems
Military Radios

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 16-pin Narrow SO configuration. Confirm that logic levels align with TTL/CMOS requirements for the intended application environment.

Selection Notes

Select this component when high channel-to-channel resistance matching and low charge injection are required. Verify that the bipolar or single-supply voltage ranges meet system constraints. Consider the narrow SO package dimensions for space-constrained designs requiring surface-mount assembly.

Part Context

This part belongs to the DG444/DG445 series of improved quad SPST analog switches. The DG445 variant specifically provides four normally open switches, distinguishing it from the DG444 which offers normally closed configurations. Both share identical electrical characteristics and pinouts.

Replacement Considerations

DG445CJ+

FAQ

What is the difference between the DG444 and DG445?

The DG444 contains four normally closed switches, whereas the DG445 contains four normally open switches. All other electrical specifications remain identical.

How does the DG445DY+ handle overvoltage protection?

Signals on S, D, or IN exceeding V+ or V- are clamped by internal diodes. For proper sequencing, V+ should be powered on first. External blocking diodes can be added if sequencing is not possible.