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DG407EJ
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Product Detailed Parameters
- Description：IC SWITCH SP8T 100OHM 28DIP
- Series：-
- Mfr：Harris Corporation
- Package：Bulk
- Switch Circuit：SP8T
- Multiplexer/Demultiplexer Circuit：8:01
- On-State Resistance (Max)：100Ohm
- Channel-to-Channel Matching (ΔRon)：5Ohm
- Voltage - Supply, Single (V+)：44V
- Voltage - Supply, Dual (V±)：±22V
- Switch Time (Ton, Toff) (Max)：200ns, 150ns
- -3db Bandwidth：-
- Charge Injection：40pC
- Channel Capacitance (CS(off), CD(off))：8pF, 80pF
- Current - Leakage (IS(off)) (Max)：500pA
- Crosstalk：-
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Through Hole
- Package / Case：28-DIP (0.600", 15.24mm)
- Supplier Device Package：28-PDIP
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The DG407EJ is a monolithic CMOS analog multiplexer manufactured by Harris Corporation, part of the DG406/7 series. It integrates sixteen bilateral analog switches with TTL and CMOS compatible digital decode logic for channel selection. The device features an ENABLE input for cascading multiple units and operates on single or split power supplies ranging from 7.5V to 44V. Key electrical parameters include a maximum ON-resistance of 100Ω, a transition time of 300ns, and charge injection of 40pC. It supports ±20V dual supply operation and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates sixteen analog switches with dedicated digital decode circuitry for direct interface with standard logic families.
- Features low charge injection characteristics to simplify sample and hold applications without requiring external compensation.
- Includes an ENABLE pin to facilitate system expansion when connecting multiple multiplexers in parallel.
Applications
- Data acquisition systems requiring high channel density
- Medical instrumentation signal routing
- Automatic test equipment
Part Context
The DG407EJ belongs to the Harris DG406/7 family, designed as drop-in replacements for older DG506A/DG507A devices. Manufactured using a high-voltage silicon-gate process, it eliminates latch-up issues common in earlier CMOS technologies. This component represents Harris's legacy analog switching portfolio before subsequent corporate acquisitions and product line consolidations.
Replacement Considerations
Verify compatibility with DG407BDJ-E3 or DG407AJ variants. Confirm that the replacement maintains the same 28-pin package configuration and voltage ratings. Ensure the substitute device meets the specific ON-resistance and leakage current requirements of the original design.
