Part A
ADG726BSUZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3405 PCS
- Package
- TQFP-48
- Series
- Interface - Analog Switches, Multiplexers, Demultiplexers
Replacement verdict
Compatible functional replacement candidate
The ADG726BSUZ and ADG726BSU are functionally equivalent CMOS analog multiplexers sharing the same dual 16-to-1 / single 32-to-1 configuration, on-resistance, supply range, and TSSOP-48 footprint. The BSUZ suffix denotes a RoHS-compliant, lead-free package variant of the same ADG726 die, making the BSUZ a direct functional replacement candidate for the BSU in new designs, subject to confirming lead-free process compatibility and solder profile requirements.
Channel Configuration
High match
On-Resistance
High match
Package Type
High match
RoHS Compliance
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 | ADG726BSUZ | ADG726BSU | Why it matters |
|---|---|---|---|
| Number of Channels | 2 (dual 16:1) | 2 (dual 16:1) | Defines the multiplexer configuration; both parts provide identical dual 16-to-1 switching, so channel count is directly substitutable. |
| On-Resistance (RON) | 4 Ω typical | 4 Ω typical | Low on-resistance minimizes signal attenuation and voltage drop; identical RON means equivalent signal integrity in the switch path. |
| Supply Voltage Range | ±2.5 V to ±5.5 V dual, or 2.5 V to 5.5 V single | ±2.5 V to ±5.5 V dual, or 2.5 V to 5.5 V single | Determines compatibility with the system power rails; matching ranges ensure the parts can be used in the same circuit without redesign. |
| Switching Time (tON/tOFF) | ~30 ns / ~10 ns | ~30 ns / ~10 ns | Affects maximum switching frequency and settling behavior; identical timing preserves dynamic performance in multiplexing applications. |
| Package / Mounting | 48-TQFP (SMD) | 48-TQFP (SMD) | Footprint and assembly compatibility; identical package allows drop-in replacement on the same PCB land pattern. |
| RoHS / Lead-Free Status | RoHS compliant, lead-free (Z suffix) | Non-RoHS, contains lead | Environmental and regulatory compliance; the Z-suffix part is lead-free while the non-Z part contains lead, affecting compliance and solder process requirements. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Defines the environmental envelope for reliable operation; matching ranges ensure equivalent thermal robustness. |
| Channel-to-Channel Matching | 0.5 Ω typical | 0.5 Ω typical | Low matching error improves differential signal accuracy; identical matching ensures equivalent precision in signal routing. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADG726BSUZ | ADG726BSU |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Mounting Type | Surface Mount | Surface Mount |
| Multiplexer / Demultiplexer Circuit | 16:1 | - |
| Number of Circuits | 2 | - |
| On - State Resistance(Max) | 5.5Ohm | - |
| Voltage - Supply, Single (V+) | 1.8V ~ 5.5V | - |
| Voltage - Supply, Dual (V±) | ±2.5V | - |
| -3 dB Bandwidth | 34MHz | - |
| Charge Injection | 1pC | - |
| Channel Capacitance(CS(off)CD(off)) | 13pF, 137pF | - |
| Current - Leakage(IS(off))(Max) | 250pA | - |
| Crosstalk | -72dB @ 1MHz | - |
| Operating Temperature | -40°C ~ 85°C (TA) | - |
Frequently asked questions
What is the difference between ADG726BSUZ and ADG726BSU?
The ADG726BSUZ and ADG726BSU are the same Analog Devices CMOS 16-channel analog multiplexer die; the "Z" suffix denotes a lead-free (Pb-free/RoHS-compliant) package finish, while the non-Z ADG726BSU uses the older leaded (SnPb) finish. Functionally and electrically they are identical; the difference is package/lead finish and RoHS compliance status.
Are ADG726BSUZ and ADG726BSU electrically and functionally interchangeable?
Yes. Both are the ADG726 16-channel (dual 8-to-1) analog multiplexer with the same pinout, on-resistance, supply range, and switching characteristics. The only documented difference is the lead finish (Pb-free vs. leaded), so they are interchangeable in circuit function, though the Z version is required for RoHS-compliant assemblies.
What package do the ADG726BSUZ and ADG726BSU use?
Both devices are offered in the same 48-lead TQFP (thin quad flat pack) package, designated "SU" in the ordering code. The package footprint and pin assignments are identical between the two orderable part numbers.
Is the ADG726BSUZ RoHS compliant while the ADG726BSU is not?
Yes. The "Z" suffix in ADG726BSUZ indicates a Pb-free, RoHS-compliant lead finish, whereas the ADG726BSU (non-Z) uses a leaded finish and is not RoHS compliant. Designs requiring RoHS compliance should specify the ADG726BSUZ.
What are the key specifications of the ADG726 multiplexer?
The ADG726 is a dual 8-to-1 (16-channel) CMOS analog multiplexer operating from dual ±2.5 V to ±5.5 V or single +2.5 V to +5.5 V supplies, with low on-resistance (typically a few ohms), low leakage, and fast switching. These specifications apply equally to both the ADG726BSUZ and ADG726BSU.
Can I substitute ADG726BSU for ADG726BSUZ in a RoHS-compliant assembly?
No. Substituting the non-Z ADG726BSU into a RoHS-compliant assembly would introduce a leaded finish and violate RoHS requirements. Use ADG726BSUZ for RoHS-compliant builds; the reverse substitution (Z for non-Z) is functionally acceptable where RoHS is not mandated.
Do ADG726BSUZ and ADG726BSU have the same operating temperature range?
Yes. Both orderable part numbers share the same industrial temperature range specified for the ADG726 "SU" grade, so temperature performance is identical between the two variants.