Part A
ADG411BRUZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1595 PCS
- Package
- TSSOP-16
- Series
- Interface - Analog Switches, Multiplexers, Demultiplexers
Replacement verdict
Compatible functional replacement candidate
The ADG411BRUZ and ADG412BR are functionally comparable CMOS analog switches from the same ADG41x family, sharing identical switch architecture, signal range, and supply requirements. The ADG412BR is a viable functional replacement candidate for the ADG411BRUZ, provided the differing on-resistance, package footprint, and switching-time characteristics are validated against the target application requirements.
On-Resistance
Validation required
Switch Configuration
High match
Package Type
Validation required
Supply Voltage Range
High match
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADG411BRUZ | ADG412BR | Why it matters |
|---|---|---|---|
| Switch Configuration | 4 x SPST (Normally Closed) | 4 x SPST (Normally Open) | Determines the default conduction state of each switch when the control logic is unpowered or inactive, which is critical for fail-safe and power-up behavior in a circuit. |
| Number of Switches | 4 | 4 | Defines how many independent signal paths can be controlled by a single package, affecting channel count and board layout. |
| On-Resistance (RON) | 35 Ω (typ) | 35 Ω (typ) | Lower on-resistance reduces signal attenuation and voltage drop across the switch, which is important for precision analog signal routing. |
| Supply Voltage Range | ±4.5 V to ±20 V dual, or 4.5 V to 40 V single | ±4.5 V to ±20 V dual, or 4.5 V to 40 V single | Determines compatibility with the system power rails and the allowable analog signal swing through the switch. |
| Logic Input Compatibility | TTL/CMOS compatible | TTL/CMOS compatible | Ensures the control inputs can be driven directly by standard digital logic levels without additional level shifting. |
| Switching Time (tON/tOFF) | ~110 ns / ~85 ns (typ) | ~110 ns / ~85 ns (typ) | Affects how quickly the switch responds to control signals, which matters for multiplexing speed and timing-sensitive applications. |
| Package | 16-Lead TSSOP | 16-Lead SOIC | Footprint and board space differ between packages, so physical layout and assembly must be adapted when substituting one for the other. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Confirms the device can operate reliably across the intended industrial temperature environment. |
| Charge Injection | ~20 pC (typ) | ~20 pC (typ) | Low charge injection minimizes glitches and offset errors when switching, which is important for sample-and-hold and precision analog circuits. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADG411BRUZ | ADG412BR |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Switch Circuit | SPST - NC | SPST - NO |
| Multiplexer / Demultiplexer Circuit | 1:1 | 1:1 |
| Number of Circuits | 4 | 4 |
| On - State Resistance(Max) | 35Ohm | 35Ohm |
| Voltage - Supply, Single (V+) | 12V | 12V |
| Voltage - Supply, Dual (V±) | ±15V | ±15V |
| Switch Time(Ton Toff)(Max) | 175ns, 145ns | 175ns, 145ns |
| Charge Injection | 5pC | 5pC |
| Channel Capacitance(CS(off)CD(off)) | 9pF, 9pF | 9pF, 9pF |
| Current - Leakage(IS(off))(Max) | 250pA | 250pA |
| Crosstalk | -85dB @ 1MHz | -85dB @ 1MHz |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the ADG411BRUZ and ADG412BR?
The ADG411BRUZ is a quad SPST analog switch with normally closed (NC) contacts, supplied in a 16-lead TSSOP package (RUZ suffix). The ADG412BR is a quad SPST analog switch with normally open (NO) contacts, supplied in a 16-lead SOIC package (R suffix). The primary functional difference is the switch configuration (NC vs NO); the package and operating temperature grade also differ.
Are the ADG411BRUZ and ADG412BR pin-compatible?
No. The ADG411BRUZ uses a 16-lead TSSOP body, while the ADG412BR uses a 16-lead SOIC body. The package footprints and land patterns differ, so they are not drop-in replacements on the same PCB without layout changes.
What are the on-resistance and supply voltage specifications for these switches?
Both devices are members of the ADG411/ADG412 family, which specifies low on-resistance (typically around 35 Ω) and operates from dual supplies of ±4.5 V to ±20 V or a single supply of 4.5 V to 40 V, per the Analog Devices datasheet. Verify exact limits against the current manufacturer datasheet for the specific grade.
Can the ADG411BRUZ be used as a direct substitute for the ADG412BR?
Not directly. The ADG411BRUZ provides normally closed switches, whereas the ADG412BR provides normally open switches, so logic states and default signal paths differ. Additionally, the TSSOP versus SOIC package difference prevents a direct board-level swap. Substitution requires validating switch logic, package footprint, and timing against the design.
What are the typical applications for the ADG411BRUZ and ADG412BR?
Both are general-purpose CMOS analog switches suited to signal routing, sample-and-hold circuits, audio and data acquisition switching, and automatic test equipment. The choice between NC (ADG411BRUZ) and NO (ADG412BR) configurations depends on the required default state of the signal path in the target design.
Do both parts support the same digital control logic levels?
Yes. As members of the same ADG411/ADG412 family, both devices use standard CMOS/TTL-compatible logic inputs for switch control, per the Analog Devices datasheet. Confirm the exact VINH/VINL thresholds in the manufacturer datasheet for the specific grade before design.
What are the package and temperature grade differences between the two parts?
The ADG411BRUZ is offered in a 16-lead TSSOP package, while the ADG412BR is offered in a 16-lead SOIC package. The "B" grade in both part numbers denotes the commercial temperature range per Analog Devices nomenclature. Always confirm the exact operating temperature range and package drawing in the current manufacturer datasheet.