Part A
ADG701BRMZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6292 PCS
- Package
- MSOP-8
- Series
- Interface - Conmutadores analógicos, Multiplexers, Demultiplexeres
Replacement verdict
Compatible functional replacement candidate
The ADG701BRMZ and ADG701BRM are functionally equivalent CMOS SPDT switches sharing the same core electrical specifications, pinout, and MSOP-8 package; the BRMZ suffix denotes RoHS-compliant lead-free construction versus the leaded BRM version, making the BRMZ a suitable drop-in replacement where lead-free compliance is required.
Switch Configuration
High match
Package Type
High match
On-Resistance
High match
RoHS Compliance
Validation required
Parts at a glance
Part B
ADG701BRM
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7958 PCS
- 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 | ADG701BRMZ | ADG701BRM | Why it matters |
|---|---|---|---|
| Switch Configuration | SPST (Normally Open) | SPST (Normally Open) | Defines the switching function; both are single-pole single-throw normally-open switches, so they are functionally interchangeable in circuit topology. |
| Number of Channels | 1 | 1 | Channel count must match the signal path requirement; both provide a single switch channel. |
| On-Resistance (Typical) | 2.5 Ω | 2.5 Ω | Low on-resistance minimizes signal attenuation and voltage drop; identical values ensure equivalent signal integrity. |
| Supply Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | Determines compatibility with the system power rail; matching ranges allow direct substitution across the same supply conditions. |
| Package / Mounting | 8-MSOP (Surface Mount) | 8-MSOP (Surface Mount) | Package and footprint must match for board-level drop-in replacement; both use the same 8-MSOP surface-mount package. |
| RoHS Compliance | RoHS Compliant (Pb-free) | Non-RoHS (contains lead) | The "Z" suffix denotes lead-free/RoHS compliance; this affects regulatory compliance and solder process compatibility, so the parts are not identical in environmental rating. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Confirms the parts operate over the same industrial temperature range, ensuring equivalent reliability in the target environment. |
| Switch Time (tON / tOFF) | tON 12 ns / tOFF 8 ns (typ) | tON 12 ns / tOFF 8 ns (typ) | Switching speed affects signal routing timing; identical values ensure the same dynamic performance in the application. |
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 | ADG701BRMZ | ADG701BRM |
|---|---|---|
| Part Status | Active | Obsolete |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | - | ADG701 |
| Switch Circuit | SPST - NO | - |
| Multiplexer / Demultiplexer Circuit | 1:1 | - |
| Number of Circuits | 1 | - |
| On - State Resistance(Max) | 3Ohm | - |
| Voltage - Supply, Single (V+) | 1.8V ~ 5V | - |
| Switch Time(Ton Toff)(Max) | 12ns, 8ns (Typ) | - |
| -3 dB Bandwidth | 200MHz | - |
| Charge Injection | 5pC | - |
| Channel Capacitance(CS(off)CD(off)) | 17pF, 17pF | - |
| Current - Leakage(IS(off))(Max) | 10pA (Typ) | - |
| Operating Temperature | -40°C ~ 85°C (TA) | - |
Frequently asked questions
What is the difference between ADG701BRMZ and ADG701BRM?
The ADG701BRMZ is the RoHS-compliant, lead-free version of the ADG701BRM. Both are single SPST normally open CMOS switches in an 8-lead MSOP package with identical electrical specifications; the "Z" suffix denotes the RoHS-compliant molding compound and lead finish per Analog Devices part numbering.
Are ADG701BRMZ and ADG701BRM electrically interchangeable?
Yes. Both devices share the same datasheet specifications: single-supply operation from 1.8 V to 5.5 V, on resistance of approximately 2.5 Ω at 5 V, low leakage current, and CMOS/TTL-compatible logic inputs. The electrical performance is identical; only the package material compliance differs.
Do ADG701BRMZ and ADG701BRM use the same package and pinout?
Yes. Both are offered in the 8-lead MSOP (RM) package with the same pin configuration: pin 1 = IN, pin 2 = D, pin 3 = S, pin 4 = GND, pin 5 = NC, pin 6 = S, pin 7 = D, pin 8 = VDD. The PCB land pattern is identical for both variants.
Which part should be selected for a new RoHS-compliant design?
The ADG701BRMZ should be selected for new designs requiring RoHS compliance. The ADG701BRM (non-Z) is the legacy non-RoHS variant and is not recommended for new designs where lead-free and RoHS compliance is mandated.
What is the on resistance of the ADG701BRMZ and ADG701BRM?
Both devices specify an on resistance of typically 2.5 Ω at VDD = 5 V and approximately 4 Ω at VDD = 3 V, per the Analog Devices ADG701 datasheet. The on-resistance flatness and matching specifications are identical between the two variants.
What supply voltage range do ADG701BRMZ and ADG701BRM support?
Both parts operate from a single supply of 1.8 V to 5.5 V, making them suitable for battery-powered and low-voltage portable applications. Dual-supply operation is not specified for the ADG701 family.
Can ADG701BRM be replaced by ADG701BRMZ without design changes?
Yes, in most cases. Since both share the same die, package, pinout, and electrical specifications, the ADG701BRMZ can directly replace the ADG701BRM on an existing PCB. The only difference is the RoHS-compliant materials, which do not affect form, fit, or function.
What are the switching times of ADG701BRMZ and ADG701BRM?
Both variants specify turn-on time of approximately 12 ns and turn-off time of approximately 8 ns at VDD = 5 V, per the Analog Devices datasheet. The switching characteristics are identical because the silicon die is the same.