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DG419DJ+
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Product Detailed Parameters
- Description：IC SWITCH SPDT X 1 35OHM 8DIP
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：35Ohm
- Channel-to-Channel Matching (ΔRon)：3Ohm (Max)
- Voltage - Supply, Single (V+)：10V ~ 30V
- Voltage - Supply, Dual (V±)：±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max)：175ns, 145ns
- -3db Bandwidth：-
- Charge Injection：3pC
- Channel Capacitance (CS(off), CD(off))：8pF, 8pF
- Current - Leakage (IS(off)) (Max)：250pA
- Crosstalk：-85dB @ 1MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Package / Case：8-DIP (0.300", 7.62mm)
- Supplier Device Package：8-PDIP
- Number of Circuits：1
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Overview
The DG419DJ+ is a precision, monolithic CMOS single-pole/double-throw (SPDT) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features an enhanced LC2MOS process providing low power dissipation and high switching speed. The device guarantees on-resistance matching of 3 Ω maximum between channels and on-resistance flatness of 4 Ω maximum over the signal range. It operates from a single +10V to +30V supply or bipolar ±4.5V to ±20V supplies. Key electrical parameters include a maximum on-resistance of 35 Ω, charge injection of 10 pC maximum, and off-leakage current less than 5 nA at +85°C. Switching times are 175 ns maximum for turn-on and 145 ns maximum for turn-off.
Feature Summary
- Guaranteed on-resistance matching of 3 Ω maximum between switches
- Guaranteed on-resistance flatness of 4 Ω maximum over the signal range
- Low off-leakage current performance with less than 5 nA at +85°C
- High electrostatic discharge tolerance of 2000V minimum per Method 3015.7
Applications
- Sample-and-Hold Circuits
- Test Equipment
- Battery-Operated Systems
- Audio Signal Routing
- Guidance and Control Systems
Procurement Notes
Verify the specific suffix 'DJ+' corresponds to the -40°C to +85°C operating temperature range and 8-pin Plastic DIP package configuration. Confirm that the ordering information matches the manufacturer's current datasheet revision to ensure compatibility with design requirements. Check for any RoHS compliance documentation if required for the application environment.
Selection Notes
Select this component when precise channel-to-channel resistance matching is critical for signal integrity in SPDT configurations. Ensure the supply voltage range aligns with the system's single or bipolar power rails. Consider the thermal derating characteristics if operating near the upper temperature limit of +85°C to maintain reliability and prevent exceeding absolute maximum ratings.
Part Context
The DG419DJ+ belongs to the DG417/DG418/DG419 family of improved precision analog switches. While the DG417 is normally closed SPST and the DG418 is normally open SPST, the DG419 provides SPDT functionality with one normally closed and one normally open switch. This family utilizes a 44V silicon-gate process designed for low power consumption and rail-to-rail signal handling capabilities.
Replacement Considerations
The DG419DJ+ serves as a plug-in upgrade for industry-standard DG417/DG418/DG419 devices. Verify pinout compatibility with legacy designs before substitution. Ensure that the improved electrical specifications, such as lower charge injection and better resistance matching, do not introduce unintended effects in existing circuits.
