DG411DY+ - 4-Channel 45Ω SPST Analog Switch | Analog Devices
MPN: DG411DY+ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.2323 | $1.23 |
| 10 | $1.2323 | $12.32 |
| 100 | $1.2323 | $123.23 |
| 500 | $1.2323 | $616.15 |
| 1,000 | $1.2323 | $1,232.30 |
DG411DY+ Overview
An analog switch is a solid-state semiconductor that connects or disects an analog signal path under digital control. The DG411 belongs to the analog switch and multiplexer hierarchy, where multiplexers combine multiplexing or demultiplexing functions and analog switches provide individual routing paths. Its CMOS implementation offers low power requirements and compatibility with digital control systems, while the normally closed architecture provides a defined connection state when control signals are absent.
Key verified characteristics include four independent SPST channels, a 1:1 signal configuration, 45 Ω maximum on-resistance, and a 16-SOIC package. The manufacturer identifies the DG411 family as improved, with low on-resistance matching between switches of 3 Ω maximum and guaranteed on-resistance flatness of 4 Ω maximum over the signal range. These characteristics are important when several channels must present similar resistance to precision measurement or acquisition circuits.
The DG411 series is designed around low on-resistance matching and flat on-resistance behavior. Matching reduces channel-to-channel gain or measurement variation, while flatness helps preserve signal behavior as the analog voltage changes. The family uses TTL- and CMOS-compatible digital inputs, allowing its control signals to be driven by common digital logic while switched signals remain in the analog domain.
Typical uses include battery-powered test equipment, automated measurement interfaces, signal routing in instrumentation, communication equipment, and data-acquisition systems. Because the device is an analog switch rather than an amplifier, ADC accuracy also depends on source impedance, settling behavior, leakage, reference quality, and the surrounding signal chain. The verified source data does not provide complete timing, leakage, supply-current, and absolute-maximum-rating values, so those specifications require confirmation from the manufacturer datasheet before design release.
The principal design consideration is verifying control levels, supply arrangement, signal excursion, and channel polarity against the complete datasheet. Place the device close to the source and destination circuits to minimize trace resistance and capacitance. Account for 45 Ω maximum on-resistance in the signal-path budget, especially for high-value sources or precision dividers. Do not infer ratings from a distributor category listing alone; use the manufacturer datasheet for electrical limits and test conditions.
This product data combines the verified manufacturer overview, distributor package and pricing references, and practical replacement guidance. It distinguishes documented facts from unavailable parameters, helping engineers evaluate DG411DY+ for routing applications without inventing missing electrical data.
Drop-in alternatives for DG411DY+ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DG411DY+ (same form factor and footprint) — differing in Package, Function, Switch Configuration, Turn-On Time (tON).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DG411DY+T
✅ Drop-In📋 Reference alternative (not in catalog)
ADG411
✅ Drop-In📋 Reference alternative (not in catalog)
TS5A3159DBVR
✅ Drop-In✓ In Stock
$0.16 / Unit
View Datasheet →TS5A4019
✅ Drop-In📋 Reference alternative (not in catalog)
DG411DY-T1-E3
✅ Drop-In📋 Reference alternative (not in catalog)
DG411DY+ Maximum Ratings & Electrical Characteristics
| Number of Channels | 4 channels |
| Switch Configuration | 4 independent SPST switches |
| Signal Configuration | 1:1 |
| On-Resistance | 45 ohm maximum |
| On-Resistance Matching Between Switches | 3 ohm maximum |
| On-Resistance Flatness Over Signal Range | 4 ohm maximum |
| Control Logic Compatibility | TTL and CMOS compatible digital inputs |
| Package | 16-SOIC |
| Package Pin Count | 16 pins |
| Mounting Type | Surface mount |
| Device Type | CMOS analog switch IC |
| Switch State | Normally closed (NC) |
DG411DY+ 16 pins Pin Configuration Guide
Pin configuration for DG411DY+ (16 pins package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for DG411DY+.
Refer to the datasheet for full pin configuration.
Typical Applications
DG411DY+ is suitable for 6 applications: Automated Test Equipment Signal Routing, Data Acquisition Front Ends, Battery-Powered Portable Instruments, Communication and Signal Isolation, Precision Switch-Mode Feedback Networks, Audio and Low-Level Analog Routing.
Automated Test Equipment Signal Routing
DG411DY+ fits four-channel routing in automated test equipment because each switch provides an independent normally closed SPST path and the family limits inter-switch on-resistance matching to 3 ohm maximum. With a documented 45 ohm maximum on-resistance, the device is appropriate when the instrument’s source impedance, divider accuracy, and acquisition front end tolerate insertion resistance. Position the IC near the tested-node driver and measurement input so PCB trace resistance does not materially change channel behavior. Verify control levels, supply arrangement, leakage, switching time, and pin details in the complete manufacturer data sheet before production.
Recommended
Data Acquisition Front Ends
The DG411DY+ can route several acquisition channels in a compact 16-SOIC footprint while maintaining a documented maximum on-resistance matching of 3 ohm between switches. This helps reduce channel-dependent errors when a multiplexer feeds sensitive downstream circuitry. Its 45 ohm maximum on-resistance must be included in the source-impedance and settling budget, especially with fast converters or high-gain amplifiers. Use short, guarded traces and confirm the switch’s leakage, supply range, signal excursion, and switching specifications before assigning it to high-impedance sensors or precision dividers.
Recommended
Battery-Powered Portable Instruments
DG411DY+ suits compact, portable measurement instruments where four analog paths must be selected under digital control without expanding the board excessively. Its TTL- and CMOS-compatible inputs support common embedded control logic, while the 16-SOIC package simplifies assembly compared with larger switch packages. The normally closed configuration can also maintain a connected path during control startup, although the application must tolerate that state. Battery operation still requires checking quiescent current, supply voltage, leakage, and active-path power from the complete data sheet, none of which are quantified in the supplied excerpts.
Recommended
Communication and Signal Isolation
DG411DY+ can provide independent analog isolation paths in communication and test modules by disconnecting inactive branches with four normally closed SPST switches. The verified 45 ohm maximum on-resistance is modest for many low-frequency routing tasks, and the family’s resistance-matching specification helps maintain consistency across channels. Keep sensitive traces separated from high-level switching or control circuitry, observe the complete absolute-maximum ratings, and verify off-state leakage before using the switch with high-impedance nodes. Exact bandwidth, isolation resistance, and switching-time claims should not be made until those parameters are confirmed from the manufacturer documentation.
Recommended
Precision Switch-Mode Feedback Networks
DG411DY+ may be used to switch discrete feedback or gain-setting elements when a controller or measurement circuit requires programmable analog behavior. Four independent channels allow the surrounding analog network to be reconfigured without changing the IC package, and the documented on-resistance flatness of 4 ohm maximum helps limit resistance-driven changes across the signal range. The switch still introduces up to 45 ohm into the selected path, so resistor ratios and amplifier accuracy must be recalculated for both on and off states. Confirm injected charge, leakage, control timing, and voltage limits before using it in precision servo loops.
Recommended
Audio and Low-Level Analog Routing
DG411DY+ can route low-level audio or control signals among multiple circuit branches where four independently controlled SPST paths are useful. The 45 ohm maximum on-resistance is relevant to impedance calculations, while the verified 3 ohm maximum matching between switches can help keep nominal channel behavior similar. The supplied data does not state THD, noise, off isolation, bandwidth, or switch charge injection, so the device should not be assumed suitable for a high-performance audio specification without additional measurements. Keep ground returns short and verify signal excursion and control thresholds from the full data sheet.
Recommended
Recommended Products Summary
Engineering reference data for DG411DY+ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DG411DY+T | ADG411 | TS5A3159 | TS5A4019 | DG411DY-T1-E3 |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Texas Instruments | Vishay Intertechnology |
| Package | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC |
Key Differentiators
- Verified four-channel 1:1 SPST integration (vs TS5A3159)
- Documented inter-switch resistance matching (vs DG411DY-T1-E3)
- Low on-resistance for the verified Vishay candidate (vs DG411DY-T1-E3)
- Wide logic-interface compatibility (vs ADG411)
Design Notes
Treat the switch as a resistance in the signal path, not as an ideal conductor. The verified maximum on-resistance is 45 ohm, and trace resistance, connector resistance, and source impedance add to the effective loading. For a precision divider or high-value source, calculate the error with the complete worst-case series resistance and verify that the downstream amplifier or ADC can settle with the resulting capacitance. The official manufacturer data sheet must be used to obtain timing, charge-injection, leakage, and off-isolation data before release.
Place DG411DY+ near the switched analog nodes to minimize PCB trace resistance and parasitic capacitance. Keep digital control traces and supply-return paths away from sensitive input and reference nodes, and provide a continuous ground reference beneath or near the routing area. Do not assume bypass values or pin functions from the distributor snippets; use the official package pinout and recommended application circuit to select capacitors and route power correctly.
Do not approve a replacement from package similarity alone. DG411DY-T1-E3 has the same listed 4-circuit, 1:1 SPST, 16-SOIC format and 35 ohm maximum on-resistance, but the supplied data does not establish control polarity, supply limits, timing, leakage, or exact pin correspondence. Compare every pin and operating limit between the official DG411 and candidate data sheets, and test the assembled signal path before using the Vishay part as a production substitute.
Compliance Information
The supplied excerpts do not explicitly state target-specific RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. DG411DY+ is an analog interface IC, so AEC-Q100 qualification is not applicable unless a separate automotive-grade ordering option is selected.