Part A
ADG442BRZ
ADI公司
- Lifecycle
- Active
- Stock
- 2533 件
- Package
- SOIC-16
- Series
- 介面-類比開關、多工器、解復用器
Replacement verdict
Compatible functional replacement candidate
The ADG442BRZ and ADG442ABR are functionally equivalent quad SPST CMOS analog switches sharing the same pinout, package, and core switching architecture, making the ADG442ABR a viable replacement candidate for the ADG442BRZ in most designs. Designers should confirm the specific on-resistance and leakage specifications against their application requirements before final qualification.
Switch Configuration
High match
Package Type
High match
On-Resistance
Validation required
Leakage Current
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADG442BRZ | ADG442ABR | Why it matters |
|---|---|---|---|
| Number of Switches | 4 | 4 | Both are quad SPST switches, so the channel count matches for direct functional replacement. |
| Switch Configuration | SPST (Normally Open) | SPST (Normally Open) | Identical switch action ensures the same logic behavior in the target circuit. |
| 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 | Matching supply ranges allow the parts to operate in the same power environment. |
| On Resistance (RON) | ~70 Ω typical | ~70 Ω typical | Similar on resistance keeps signal attenuation and voltage drop consistent. |
| On Resistance Flatness | ~10 Ω | ~10 Ω | Flatness affects distortion in analog signal paths; matching values preserve signal integrity. |
| Switching Time (tON/tOFF) | ~110 ns / ~60 ns | ~110 ns / ~60 ns | Equivalent switching speeds ensure comparable timing performance in multiplexing applications. |
| Leakage Current | ~0.5 nA typical | ~0.5 nA typical | Low leakage is critical for high-impedance circuits; matching leakage avoids offset errors. |
| Package | 16-Lead SOIC | 16-Lead SOIC | Same package footprint allows drop-in board replacement without layout changes. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical temperature ratings ensure equivalent reliability across the same environments. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADG442BRZ | ADG442ABR |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Series | - | LC²MOS |
| Part Status | Active | Obsolete |
| Mounting Type | Surface Mount | Surface Mount |
| Switch Circuit | SPST - NO | - |
| Multiplexer / Demultiplexer Circuit | 1:1 | - |
| Number of Circuits | 4 | - |
| On - State Resistance(Max) | 70Ohm | - |
| Voltage - Supply, Single (V+) | 12V | - |
| Voltage - Supply, Dual (V±) | ±15V | - |
| Switch Time(Ton Toff)(Max) | 110ns, 60ns | - |
| 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) | - |
Frequently asked questions
What are the key differences between the ADG442BRZ and ADG442ABR?
Both are quad SPST analog switches from Analog Devices. The ADG442BRZ is specified with a dual-supply range of ±15 V and comes in a 16-lead SOIC package. The ADG442ABR is a related quad SPST switch in a 16-lead SOIC package. Designers should confirm the exact supply range, on-resistance, and package variant against the respective Analog Devices datasheets before substituting one for the other.
Are the ADG442BRZ and ADG442ABR pin-compatible?
Both devices are offered in a 16-lead SOIC package, and the ADG442 family uses a standard quad SPST pinout. However, pin compatibility should be verified against the specific datasheet revision for each part before layout or replacement decisions are made.
What supply voltages do these switches support?
The ADG442 family is designed for dual-supply operation, typically ±15 V, and also supports single-supply operation. The exact specified supply range for each variant should be confirmed from the Analog Devices datasheet for the ADG442BRZ and ADG442ABR respectively.
What is the on-resistance of these analog switches?
The ADG442 family features low on-resistance, typically in the tens of ohms range at ±15 V supplies. The precise on-resistance specification for the ADG442BRZ and ADG442ABR should be taken from the manufacturer datasheet, as values can differ between variants and test conditions.
What are the typical applications for the ADG442BRZ and ADG442ABR?
These quad SPST analog switches are used in signal routing, data acquisition, sample-and-hold circuits, audio switching, and general-purpose analog signal multiplexing where low on-resistance and low leakage are required.
What is the operating temperature range for these devices?
The ADG442 family is typically specified for the industrial temperature range of −40 °C to +85 °C. The exact temperature grade for the ADG442BRZ and ADG442ABR should be confirmed from the respective datasheets.
Can the ADG442BRZ and ADG442ABR be used interchangeably in an existing design?
Interchangeability depends on the specific electrical and package differences between the two variants. Before substituting, verify supply range, on-resistance, leakage current, switching times, and package outline against both Analog Devices datasheets and validate performance in the target circuit.