Part A
ADG452BR
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6146 Stückzahl
- Package
- SOIC-16
- Series
- Schnittstelle für analoge Schalter, Multiplexer, Demultiplexer
Replacement verdict
Compatible functional replacement candidate
The ADG452BR and ADG451BR-REEL7 are quad SPST CMOS analog switches from the same ADG451/ADG452 family, sharing identical 16-lead SOIC packaging, ±15 V dual-supply operation, and low on-resistance characteristics. The ADG452BR is a functionally suitable replacement candidate for the ADG451BR-REEL7 in most switching applications, though the differing switch architecture (normally open versus normally closed) and on-resistance specifications require design validation before substitution.
Switch Configuration
Validation required
Package Type
High match
On-Resistance
Validation required
Supply Voltage Range
High match
Parts at a glance
Part B
ADG451BR-REEL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4830 Stückzahl
- Package
- SOIC-16
- Series
- Schnittstelle für analoge Schalter, Multiplexer, Demultiplexer
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADG452BR | ADG451BR-REEL7 | Why it matters |
|---|---|---|---|
| Switch Configuration | 4 x SPST (Normally Open) | 4 x SPST (Normally Closed) | Determines the default conduction state of each switch when the control logic is not asserted; NO vs NC changes the fail-safe behavior of the circuit. |
| On-Resistance (R_ON) | 5 Ω (typ) | 5 Ω (typ) | Low on-resistance minimizes signal attenuation and voltage drop across the switch, directly affecting signal integrity and power loss. |
| 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 | Defines the operating supply window; matching ranges confirm the parts are interchangeable in the same power rail design. |
| Number of Channels | 4 | 4 | Channel count must match to preserve the signal routing capacity of the existing PCB layout. |
| Control Logic | TTL/CMOS compatible | TTL/CMOS compatible | Ensures the switch can be driven directly by standard digital logic levels without level shifting. |
| Package | 16-Lead SOIC | 16-Lead SOIC | Identical package and pinout allow drop-in replacement without PCB redesign. |
| Switching Time (t_ON / t_OFF) | ~110 ns / ~70 ns (typ) | ~110 ns / ~70 ns (typ) | Matching transition speeds ensure comparable timing behavior in multiplexing and signal-routing applications. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Confirms both parts meet the same environmental operating envelope for the target 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 | ADG452BR | ADG451BR-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Obsolete | Obsolete |
| Switch Circuit | SPST - NO | SPST - NC |
| Multiplexer / Demultiplexer Circuit | 1:1 | 1:1 |
| Number of Circuits | 4 | 4 |
| On - State Resistance(Max) | 5Ohm | 5Ohm |
| Channel - to - Channel Matching(ΔRon) | 100mOhm | 100mOhm |
| Voltage - Supply, Single (V+) | 12V | 12V |
| Voltage - Supply, Dual (V±) | ±4.5V ~ 20V | ±4.5V ~ 20V |
| Switch Time(Ton Toff)(Max) | 180ns, 140ns | 180ns, 140ns |
| Charge Injection | 20pC | 20pC |
| Channel Capacitance(CS(off)CD(off)) | 37pF, 37pF | 37pF, 37pF |
| Current - Leakage(IS(off))(Max) | 500pA | 500pA |
| Crosstalk | -90dB @ 1MHz | -90dB @ 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 ADG452BR and ADG451BR-REEL7?
Both are quad SPST CMOS analog switches from Analog Devices. The ADG452BR features a typical on-resistance of 4 Ω, while the ADG451BR offers a lower typical on-resistance of 2.5 Ω. The ADG451BR-REEL7 is supplied in tape-and-reel packaging for automated assembly, whereas the ADG452BR is typically supplied in tube or tray packaging. Both are specified for dual-supply operation and are pin-compatible in the same 16-lead SOIC package.
Are the ADG452BR and ADG451BR-REEL7 pin-compatible?
Yes. Both devices are offered in a 16-lead SOIC package with the same pinout, allowing them to share a common PCB footprint. Designers should still verify the land pattern against the respective datasheets before layout.
What supply voltage range do these switches support?
Both the ADG452BR and ADG451BR are specified for dual-supply operation of ±4.5 V to ±20 V, and single-supply operation of 4.5 V to 40 V, per Analog Devices datasheet specifications. The ADG451BR-REEL7 shares the same supply ratings as the ADG451BR base part.
What is the on-resistance of each device?
The ADG452BR has a typical on-resistance of 4 Ω, while the ADG451BR-REEL7 has a typical on-resistance of 2.5 Ω. Lower on-resistance in the ADG451BR reduces signal attenuation and voltage drop in precision signal routing applications.
What is the difference between the ADG451BR and ADG451BR-REEL7?
The ADG451BR-REEL7 is the same ADG451BR die and package, supplied in tape-and-reel format (7-inch reel) for high-volume automated pick-and-place assembly. Electrical and thermal specifications are identical between the two ordering variants.
What switching speeds do these devices offer?
Both the ADG452BR and ADG451BR feature fast switching times, with typical turn-on and turn-off times in the tens of nanoseconds range as specified in the Analog Devices datasheets. The ADG451BR-REEL7 shares the same switching characteristics as the ADG451BR.
Can the ADG452BR be used as a drop-in replacement for the ADG451BR-REEL7?
Because both parts share the same 16-lead SOIC pinout and supply ratings, they are functionally interchangeable in many designs. However, the ADG452BR has higher on-resistance (4 Ω typical vs. 2.5 Ω typical), so circuits sensitive to on-resistance, such as precision attenuators or low-distortion signal paths, should be re-evaluated before substitution.
What are the typical applications for these analog switches?
Both the ADG452BR and ADG451BR-REEL7 are used in signal routing, data acquisition systems, audio switching, automatic test equipment, and communication systems where low on-resistance and fast switching are required. The lower on-resistance of the ADG451BR makes it preferable for precision analog signal chains.