The Vishay DG536DN-E3 is an analog multiplexer/demultiplexer designed for precision signal routing in mixed-signal systems. It provides four channels of single-ended analog switching in a single package, allowing multiple signals to be routed to a single output or distributed from a single input to multiple destinations. This device integrates low on-resistance analog switches with TTL/CMOS-compatible digital control, making it suitable for high-speed data acquisition, measurement instruments, communication systems, and test equipment. Its wide analog voltage range, low leakage currents, and low charge injection characteristics make it ideal for precision analog applications.
## Key Features
* Device Type: Quad single-pole four-throw (SP4T) analog multiplexer/demultiplexer
* Number of Channels: 4 independent switches
* Control Logic: TTL/CMOS compatible inputs
* On-Resistance (RON): 35 Ω typical at VCC = 15 V, 50 Ω maximum
* Analog Signal Range: ±15 V for VCC = ±15 V or 0 to VCC
* Leakage Current (ILEAK): ±5 nA typical at 25°C
* Charge Injection: 10 pC typical, minimizing voltage spikes during switching
* Switching Time: 100 ns typical on/off time, suitable for high-speed applications
* Power Supply Range: Single supply 5 V to 15 V or dual supply ±5 V to ±15 V
* Package Type: 16-lead plastic dual in-line package (DIP)
* Operating Temperature Range: -40°C to +85°C
* Applications: Precision signal routing, test instrumentation, communication systems, data acquisition, analog switching in embedded systems
## Electrical Characteristics
* VCC Supply Voltage: 5 V to 15 V single supply; ±5 V to ±15 V dual supply
* ICC Supply Current: 2 mA typical at VCC = 15 V
* RON Variation: 3 Ω typical channel-to-channel variation
* Input High Voltage (VIH): 2 V minimum at VCC = 5 V
* Input Low Voltage (VIL): 0.8 V maximum at VCC = 5 V
* Breakdown Voltage: ±15 V for dual supply; devices withstand full analog range without damage
* Crosstalk: -75 dB typical at 1 MHz, providing minimal signal interference
* Off-Isolation: -65 dB typical at 1 MHz
## Functional Description
* Analog Switch Configuration: Each channel contains a single-pole four-throw switch, allowing one of four inputs to be routed to a single output or vice versa
* Digital Control: Logic inputs enable the selection of the active channel; compatible with TTL/CMOS voltage levels
* Bidirectional Signal Transmission: Switches are fully analog, allowing bidirectional signal flow for flexible routing
* Low Distortion and Low Noise: Minimal RON variation and low charge injection preserve signal integrity for sensitive analog applications
* Isolation: Non-selected channels are isolated from the output with high impedance, preventing leakage and crosstalk
## Applications
* Precision Instrumentation: Routing of sensor signals or measurement lines in multichannel data acquisition systems
* Communication Systems: Signal multiplexing for RF and baseband applications
* Test Equipment: Switching between multiple test points in automated test setups
* Embedded Systems: Flexible routing of analog signals in microcontroller or FPGA-based designs
* Audio and Video Systems: Low-noise signal selection for audio mixers and video switchers
## Design Considerations
* Power Supply Selection: Choose single or dual supply configuration according to system requirements; ensure VCC and VEE voltages do not exceed specified limits
* Analog Input Range: Ensure input signals remain within the device’s analog range to avoid distortion or damage
* Digital Interface: Pull-up or pull-down resistors may be required depending on logic voltage standards used in the control system
* PCB Layout: Minimize parasitic capacitance on analog paths to preserve high-frequency performance
* Load Consideration: Drive only high-impedance inputs to maintain signal integrity, as the on-resistance may affect voltage division for low-impedance loads
* Thermal Management: While power dissipation is low, ensure ambient temperature does not exceed maximum rated temperature for long-term reliability
## Performance Considerations
* Low RON Variation: Ensures consistent signal transfer between channels
* High Off-Isolation: Minimizes leakage from inactive channels
* Fast Switching: 100 ns typical ensures compatibility with high-speed systems
* Low Charge Injection: Reduces spurious voltage spikes during switching, preserving sensitive analog signals
* Wide Temperature Range: Ensures consistent performance in industrial and automotive environments
## Summary
The Vishay DG536DN-E3 is a versatile quad SP4T analog multiplexer/demultiplexer offering low on-resistance, low leakage, and fast switching in a compact DIP package. Its wide analog voltage range, bidirectional signal capability, and TTL/CMOS-compatible control make it suitable for precision instrumentation, high-speed data acquisition, communication systems, and embedded applications. With low charge injection and excellent channel-to-channel consistency, it enables reliable and accurate analog signal routing across a wide range of operating conditions.
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