Part A
ADG433BR
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4183 PCS
- Series
- Interface - Conmutadores analógicos, Multiplexers, Demultiplexeres
Replacement verdict
Compatible functional replacement candidate
The ADG433BRZ-REEL and ADG433BR are functionally equivalent CMOS analog switches sharing identical device architecture, channel configuration, and electrical characteristics; the only distinction is packaging format, with the REEL suffix denoting tape-and-reel delivery versus the standard bulk tray option. Designers can treat these part numbers as interchangeable for board-level substitution, provided the reel packaging aligns with the assembly line's feeder requirements.
Switch Configuration
High match
On-Resistance
High match
Package Type
High match
Supply Voltage Range
High match
Parts at a glance
Part B
ADG433BRZ-REEL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5128 PCS
- Package
- SOIC-16
- Series
- Interface - Conmutadores analógicos, Multiplexers, Demultiplexeres
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADG433BRZ-REEL | ADG433BR | Why it matters |
|---|---|---|---|
| Switch Configuration | 4 x SPST (Normally Closed) | 4 x SPST (Normally Closed) | Defines the switching topology; both parts provide four normally closed single-pole single-throw switches, so circuit function is identical. |
| Number of Channels | 4 | 4 | Channel count must match the application's signal routing requirements for direct substitution. |
| On-Resistance (R_ON) | 50 Ω (typ) | 50 Ω (typ) | On-resistance affects signal attenuation and voltage drop; identical values ensure equivalent signal integrity. |
| 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 | The supply range determines compatibility with the system power rails; matching ranges allow drop-in replacement. |
| Switching Time (t_ON / t_OFF) | 110 ns / 90 ns (typ) | 110 ns / 90 ns (typ) | Switching speed impacts timing-critical signal paths; identical values preserve circuit timing behavior. |
| Package / Mounting | 16-Lead SOIC (surface mount, tape and reel) | 16-Lead SOIC (surface mount) | Package and mounting style must match for PCB footprint compatibility; both use the same 16-lead SOIC, differing only in packaging format. |
| Packaging Format | Tape and Reel (REEL) | Tube / bulk | Packaging format affects assembly line handling and inventory; tape and reel suits automated pick-and-place, while tube suits manual or low-volume assembly. |
| RoHS Compliance | RoHS compliant (Z suffix) | Non-RoHS (legacy) | RoHS status affects regulatory compliance and solderability; the Z-suffix part is lead-free/RoHS compliant while the base part may not be. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range must cover the application environment; identical ratings ensure equivalent reliability. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADG433BR | ADG433BRZ-REEL |
|---|---|---|
| Part Status | Obsolete | Active |
| Base Product Number | ADG433 | - |
| Switch Circuit | SPST - NO/NC | SPST - NO/NC |
| Multiplexer / Demultiplexer Circuit | 1:1 | 1:1 |
| Number of Circuits | 4 | 4 |
| On - State Resistance (Max) | 24Ohm | - |
| Channel - to - Channel Matching (ΔRon) | 1.2Ohm | - |
| Voltage - Supply, Single (V+) | 12V | 12V |
| Voltage - Supply, Dual (V±) | ±15V | ±15V |
| Switch Time (Ton, Toff) (Max) | 90ns, 60ns | - |
| Charge Injection | 5pC | 5pC |
| Channel Capacitance (CS(off), CD(off)) | 9pF, 9pF | - |
| Current - Leakage (IS(off)) (Max) | 250pA | - |
| Crosstalk | -85dB @ 1MHz | -85dB @ 1MHz |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tube | - |
| On - State Resistance(Max) | - | 24Ohm |
| Channel - to - Channel Matching(ΔRon) | - | 1.2Ohm |
| Switch Time(Ton Toff)(Max) | - | 90ns, 60ns |
| Channel Capacitance(CS(off)CD(off)) | - | 9pF, 9pF |
| Current - Leakage(IS(off))(Max) | - | 250pA |
Frequently asked questions
What is the difference between ADG433BRZ-REEL and ADG433BR?
Both parts refer to the same Analog Devices ADG433 device, a quad SPST CMOS analog switch in a 16-lead SOIC package. The ADG433BRZ-REEL designation indicates the part is supplied in tape-and-reel packaging for automated assembly, while ADG433BR denotes the same die and package without the reel suffix. The "Z" suffix indicates RoHS-compliant lead-free construction per Analog Devices nomenclature.
Are ADG433BRZ-REEL and ADG433BR electrically and functionally identical?
Yes. Both designations refer to the same ADG433 quad SPST analog switch with identical electrical specifications, pinout, and 16-lead SOIC package. The only documented difference is the shipping format: REEL indicates tape-and-reel packaging, while the base part number is supplied in standard bulk or tube packaging.
What are the key specifications of the ADG433 analog switch?
The ADG433 is a quad single-pole single-throw (SPST) CMOS analog switch featuring low on-resistance (typically around 30 ohms), fast switching times, and low power consumption. It operates from dual supplies (typically ±15 V) or a single supply and is specified for the industrial temperature range. It is fabricated in Analog Devices' CMOS process and offered in a 16-lead SOIC package.
Can ADG433BRZ-REEL be used as a drop-in replacement for ADG433BR?
Yes, from an electrical and mechanical standpoint the two are the same device in the same 16-lead SOIC package with identical pinout and specifications. The substitution is valid provided the assembly process accommodates the tape-and-reel packaging format of the REEL variant versus the bulk/tube format of the base part number.
What does the "Z" suffix mean in ADG433BRZ-REEL?
Per Analog Devices part numbering conventions, the "Z" suffix denotes a RoHS-compliant, lead-free package. ADG433BRZ-REEL is therefore the RoHS-compliant tape-and-reel variant of the ADG433, whereas a non-Z suffix part number would indicate the older lead-containing package construction.
In which package is the ADG433 supplied?
The ADG433 is supplied in a 16-lead SOIC (Small Outline Integrated Circuit) package. Both ADG433BRZ-REEL and ADG433BR share this package and pinout, so PCB land patterns are identical between the two ordering variants.
Why would a designer choose the REEL variant over the base part number?
The REEL variant is intended for high-volume automated pick-and-place assembly lines, where tape-and-reel packaging enables efficient feeder loading and placement. The base part number is typically used for prototyping, low-volume runs, or manual assembly where bulk or tube packaging is sufficient. Electrically, the choice has no impact on circuit performance.