Part A
ADG722BRMZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 4136 個数
- Package
- MSOP-8
- Series
- インターフェース - アナログスイッチ、マルチプレクサ、デマルチプレクサ
Replacement verdict
Compatible functional replacement candidate
The ADG723BRMZ and ADG722BRMZ are functionally compatible analog switch candidates, sharing the same dual SPST switch configuration, MSOP-8 package, and supply voltage range. The primary distinction is the switch control logic: the ADG723BRMZ features normally open (NO) switches, while the ADG722BRMZ features normally closed (NC) switches. Designers must verify that the default switch state at power-up aligns with their system requirements before substituting one for the other.
Switch Configuration
High match
Package Type
High match
Supply Voltage Range
High match
Switch Control Logic
Validation required
Parts at a glance
Part B
ADG723BRMZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 6121 個数
- Package
- MSOP-8
- Series
- インターフェース - アナログスイッチ、マルチプレクサ、デマルチプレクサ
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADG723BRMZ | ADG722BRMZ | Why it matters |
|---|---|---|---|
| Switch Configuration | SPST (Normally Open, x2) | SPST (Normally Open, x2) | Both are dual SPST normally-open switches, so the switching topology is functionally equivalent for signal routing. |
| Number of Channels | 2 | 2 | Channel count must match to preserve the number of independent signal paths in the design. |
| On-Resistance (RON) | 4 Ω (typ) | 4 Ω (typ) | On-resistance directly affects signal attenuation and insertion loss; matching values ensure equivalent analog performance. |
| Supply Voltage Range | 1.8 V to 5.5 V (single supply) | 1.8 V to 5.5 V (single supply) | Compatible supply range ensures the part can operate in the same rail environment without redesign. |
| Package / Mounting | 8-Lead MSOP (Surface Mount) | 8-Lead MSOP (Surface Mount) | Identical package and footprint allow drop-in replacement on the same PCB layout. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Matching temperature ratings ensure both parts meet the same environmental and reliability requirements. |
| Switching Time (tON / tOFF) | ~14 ns / ~6 ns (typ) | ~14 ns / ~6 ns (typ) | Switching speed determines timing behavior in multiplexing and signal-gating applications; equivalent values preserve dynamic performance. |
| Logic Control Interface | CMOS/TTL compatible | CMOS/TTL compatible | Compatible logic levels ensure the switch can be driven by the same digital control circuitry without level shifting. |
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 | ADG722BRMZ | ADG723BRMZ |
|---|---|---|
| Part Status | Active | Active |
| Switch Circuit | SPST - NC | SPST - NO/NC |
| Multiplexer / Demultiplexer Circuit | 1:1 | 1:1 |
| Number of Circuits | 2 | 2 |
| On - State Resistance(Max) | 4Ohm | 4Ohm |
| Channel - to - Channel Matching(ΔRon) | 300mOhm | 300mOhm |
| Voltage - Supply, Single (V+) | 1.8V ~ 5.5V | 1.8V ~ 5.5V |
| Switch Time(Ton Toff)(Max) | 14ns, 6ns (Typ) | 14ns, 6ns (Typ) |
| -3 dB Bandwidth | 200MHz | 200MHz |
| Charge Injection | 2pC | 2pC |
| Channel Capacitance(CS(off)CD(off)) | 7pF, 7pF | 7pF, 7pF |
| Current - Leakage(IS(off))(Max) | 250pA | 250pA |
| Crosstalk | -97dB @ 1MHz | -97dB @ 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 ADG723BRMZ and ADG722BRMZ?
Both are dual SPST switches in 8-lead MSOP (RM) packages from Analog Devices. The ADG722BRMZ has two normally open (NO) switches, while the ADG723BRMZ has one normally open (NO) and one normally closed (NC) switch. Their analog signal ranges, on-resistance, and switching characteristics are otherwise specified similarly in the datasheet.
Are the ADG723BRMZ and ADG722BRMZ pin-compatible?
Yes. Both devices are offered in the same 8-lead MSOP package with the same pinout, so they are footprint-compatible. However, the switch logic configuration differs (NO/NC vs. dual NO), so circuit behavior must be validated before substitution.
What is the on-resistance of these switches?
Per the Analog Devices datasheet, both the ADG722 and ADG723 feature low on-resistance, typically around 4 Ω at +25°C with a 5 V single supply. On-resistance varies with supply voltage and signal level, so the datasheet curves should be consulted for the specific operating conditions.
What supply voltage range do the ADG722BRMZ and ADG723BRMZ support?
Both devices operate from a single supply of +1.8 V to +5.5 V, or from dual supplies of ±2.5 V (i.e., a 5 V total span). This makes them suitable for low-voltage portable and battery-powered signal-switching applications.
How do the switching times compare between the ADG722BRMZ and ADG723BRMZ?
Both parts are specified with fast switching times in the datasheet, with turn-on and turn-off times in the nanosecond range (approximately 10 ns to 20 ns depending on supply and load conditions). The ADG722 and ADG723 share the same switch architecture, so their timing specifications are essentially equivalent.
Can the ADG723BRMZ replace the ADG722BRMZ in an existing design?
Only if the design can tolerate the change from two normally open switches to one normally open plus one normally closed switch. The package and pinout are identical, but the default state of one channel is inverted, which affects power-up behavior and logic control. The substitution must be validated against the schematic and system requirements.
What are the typical applications for the ADG722BRMZ and ADG723BRMZ?
These dual SPST switches are typically used for signal routing, audio and video switching, sample-and-hold circuits, communication systems, and battery-powered instrumentation where low on-resistance and low power consumption are required. The ADG723BRMZ's NO/NC configuration is useful where a default closed path is needed.