Part A
ADG419BR
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4417 Stückzahl
- Package
- SOIC-8
- Series
- Schnittstelle für analoge Schalter, Multiplexer, Demultiplexer
Replacement verdict
Compatible functional replacement candidate
The ADG419BR and ADG412BR-REEL7 are both single-pole single-throw CMOS analog switches from Analog Devices sharing a common functional architecture, but they differ in switch configuration and package options. The ADG419BR is a normally closed (NC) SPDT switch in an 8-lead SOIC, while the ADG412BR-REEL7 is a normally open (NO) SPST quad switch supplied in tape and reel. Designers should confirm contact polarity, channel count, and board footprint before substituting one for the other in an existing layout.
Switch Configuration
Validation required
Channel Count
Not compatible
Package Type
Validation required
On-Resistance
High match
Parts at a glance
Part B
ADG412BR-REEL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2092 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 | ADG419BR | ADG412BR-REEL7 | Why it matters |
|---|---|---|---|
| Switch Configuration | SPDT (2:1 multiplexer) | SPST (4 independent switches) | Determines the switching topology; an SPDT mux cannot directly replace four independent SPST switches in a circuit. |
| Number of Switches | 1 | 4 | Affects how many independent signal paths can be controlled per package. |
| On Resistance (RON) | 25 Ω (typ) | 25 Ω (typ) | Lower on-resistance reduces signal attenuation and voltage drop across the switch. |
| Supply Voltage Range | ±15 V dual (or +12 V single) | ±15 V dual (or +12 V single) | Must match the system power rails for proper analog signal swing and safe operation. |
| Switching Time (tON/tOFF) | ~110 ns / ~90 ns | ~110 ns / ~90 ns | Determines how fast the switch can transition, impacting timing-sensitive signal routing. |
| Package | 8-lead SOIC | 16-lead SOIC | Different footprint and pin count prevent direct board-level drop-in replacement. |
| Control Logic Inputs | 1 logic input (IN) | 4 logic inputs (IN1–IN4) | Number of control lines required from the host differs, affecting GPIO allocation. |
| Charge Injection | ~10 pC (typ) | ~20 pC (typ) | Lower charge injection reduces glitches on switched analog signals, important for precision sampling. |
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 | ADG419BR | ADG412BR-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Obsolete | Obsolete |
| Switch Circuit | SPDT | SPST - NO |
| Multiplexer / Demultiplexer Circuit | 2:1 | 1:1 |
| Number of Circuits | 1 | 4 |
| On - State Resistance(Max) | 35Ohm | 35Ohm |
| Voltage - Supply, Single (V+) | 12V | 12V |
| Voltage - Supply, Dual (V±) | ±15V | ±15V |
| Switch Time(Ton Toff)(Max) | - | 175ns, 145ns |
| Charge Injection | - | 5pC |
| Channel Capacitance(CS(off)CD(off)) | 6pF | 9pF, 9pF |
| Current - Leakage(IS(off))(Max) | 250pA | 250pA |
| Crosstalk | -90dB @ 1MHz | -85dB @ 1MHz |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the ADG419BR and ADG412BR-REEL7?
The ADG419BR is a single SPDT (2:1) analog switch in an SOIC-8 package, while the ADG412BR-REEL7 is a quad SPST (4 independent switches) analog switch in a 16-lead SOIC package supplied on tape and reel. The ADG419BR offers one changeover switch, whereas the ADG412BR provides four normally open (NO) switches in a single package.
What are the on-resistance specifications for these devices?
The ADG419BR features a typical on-resistance of 25 Ω (maximum 35 Ω) at ±15 V dual supplies. The ADG412BR features a typical on-resistance of 25 Ω (maximum 35 Ω) under the same ±15 V conditions. Both parts are members of the same ADG41x family and share comparable RON characteristics.
What supply voltage ranges do the ADG419BR and ADG412BR-REEL7 support?
Both devices operate from dual supplies of ±15 V (range ±10 V to ±18 V) or from a single supply of +12 V (range +10 V to +30 V). They are specified for both dual- and single-supply operation, making them suitable for a variety of signal-switching applications.
What are the switching times of the ADG419BR and ADG412BR-REEL7?
The ADG419BR has a typical turn-on time (tON) of 110 ns and turn-off time (tOFF) of 90 ns. The ADG412BR has a typical tON of 110 ns and tOFF of 90 ns. Both parts offer fast switching suitable for high-speed signal routing.
What are the package and pin configuration differences?
The ADG419BR is housed in an 8-lead SOIC (SOIC-8) package with a single SPDT switch. The ADG412BR-REEL7 is housed in a 16-lead SOIC (SOIC-16) package containing four independent SPST switches. The pin counts and PCB land patterns differ, so they are not drop-in replacements for each other.
What are the leakage current specifications for these switches?
The ADG419BR specifies off leakage (ID(OFF)) of typically 0.1 nA and maximum 2 nA at ±15 V, and on leakage (ID(ON)) of typically 0.1 nA and maximum 2 nA. The ADG412BR specifies similar low leakage currents, typically 0.1 nA and maximum 2 nA, making both suitable for low-leakage precision applications.
Can the ADG419BR and ADG412BR-REEL7 be used interchangeably in a design?
No. The ADG419BR is a single SPDT switch in an 8-lead package, while the ADG412BR-REEL7 contains four SPST switches in a 16-lead package. The switch function, channel count, and package footprint differ, so they are not direct substitutes. A redesign of the PCB and switch topology would be required to interchange them.
What are the digital control logic thresholds for these devices?
Both the ADG419BR and ADG412BR-REEL7 feature TTL/CMOS-compatible digital inputs. The digital input logic high threshold (VINH) is typically 2.0 V minimum, and the logic low threshold (VINL) is typically 0.8 V maximum, allowing direct interfacing with standard TTL and CMOS logic levels.