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DG527AK
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Product Detailed Parameters
- Description：IC MUX DUAL 4:1 400OHM 28CERDIP
- Series：-
- Mfr：Harris Corporation
- Package：Bulk
- Switch Circuit：-
- Multiplexer/Demultiplexer Circuit：4:01
- On-State Resistance (Max)：400Ohm
- Channel-to-Channel Matching (ΔRon)：24Ohm
- Voltage - Supply, Single (V+)：44V
- Voltage - Supply, Dual (V±)：±22V
- Switch Time (Ton, Toff) (Max)：1.5µs, 1µs
- -3db Bandwidth：-
- Charge Injection：6pC
- Channel Capacitance (CS(off), CD(off))：10pF, 35pF
- Current - Leakage (IS(off)) (Max)：1nA
- Crosstalk：-
- Operating Temperature：-55°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：28-CDIP (0.600", 15.24mm)
- Supplier Device Package：28-CERDIP
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The DG527AK is a CMOS latched dual 8-channel analog multiplexer manufactured by Harris Corporation, now part of Analog Devices. It features two independent 8-to-1 multiplexing circuits within a single package. The device operates with a wide supply voltage range from 10.8 V to 16.5 V on either a single or dual power supply. Key electrical specifications include a maximum on-resistance of 700 Ohms and a typical off-isolation of 68 dB. It supports microprocessor-compatible control signals with a write pulse width as short as 100 ns. The component is designed for extended plastic temperature operation ranging from -40°C to +85°C.
Feature Summary
- Dual independent 8:1 multiplexing architecture
- Microprocessor compatible latch inputs
- Wide single or dual supply voltage compatibility
- Low leakage current characteristics
Applications
- Data acquisition systems requiring signal routing
- Industrial process control instrumentation
- Medical equipment signal conditioning
Procurement Notes
Verify the manufacturer lineage carefully, as Harris Corporation's semiconductor division was acquired by Analog Devices. Ensure the datasheet corresponds to the ADI era documentation to confirm pinout and electrical parameter consistency. Check for RoHS compliance status depending on the specific production batch date code.
Selection Notes
Select this component when dual isolated 8-channel switching is required within a compact footprint. Compare the 700 Ohm on-resistance limit against load requirements. Verify that the 100 ns write pulse capability meets the system bus timing constraints. Consider the SOIC-28 or PLCC package availability relative to PCB layout restrictions.
Part Context
The DG527AK belongs to the ADG526A/ADG527A family of CMOS analog switches. This series serves as a superior alternative to older silicon-gate devices like the DG526/DG527. The 'K' suffix typically denotes a specific package variant, often the ceramic DIP or plastic DIP, distinct from the 'Z' suffix used for lead-free surface mount packages in later Analog Devices nomenclature.
Replacement Considerations
The ADG527AKPZ is a direct functional replacement offering identical electrical performance in a 28-PLCC surface-mount package. Designers must adapt the PCB footprint when transitioning from the through-hole DG527AK to the surface-mount ADG527 variants.
