Overview
The SN74HC4852DR is a dual 4-to-1 channel analog multiplexer/demultiplexer produced by Texas Instruments. This component is designed to be pin compatible with the SN74HC4052, SN74LV4052A, and CD4052B, making it a versatile choice for various applications. It features injection-current effect control, which is particularly valuable in automotive and other environments where voltages can exceed normal supply voltages. This feature eliminates the need for external diode/resistor networks, simplifying circuit design and improving reliability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 16-SOIC (0.154", 3.90mm Width) | - |
| Pins | 16 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Voltage - Supply, Single (V+) | 2 V ~ 6 V | V |
| On-State Resistance (Max) | 195 Ohm | Ω |
| Channel-to-Channel Matching (ΔRon) | 3 Ohm | Ω |
| Switch Time (Ton, Toff) (Max) | 39ns, 78ns | ns |
| Channel Capacitance (CS(off), CD(off)) | 22pF | pF |
| Current - Leakage (IS(off)) (Max) | 200nA | nA |
Key Features
- Injection current cross-coupling <1mV/mA, reducing crosstalk between switches.
- Low crosstalk between switches, ensuring minimal signal interference.
- Pin compatible with SN74HC4052, SN74LV4052A, and CD4052B, facilitating easy integration into existing designs.
- Operates over a wide voltage range of 2V to 5.5V, making it versatile for various applications.
- Latch-up performance exceeds 100mA per JESD 78, Class II, ensuring robust operation.
- The injection-current effect control allows signals at disabled analog input channels to exceed the supply voltage without affecting the enabled channel, eliminating the need for external diode/resistor networks.
Applications
The SN74HC4852DR is particularly useful in automotive applications due to its ability to handle voltages exceeding normal supply voltages. It is also suitable for other environments where signal integrity and minimal crosstalk are critical, such as in industrial control systems, medical devices, and telecommunications equipment.
Q & A
- What is the primary function of the SN74HC4852DR?
The SN74HC4852DR is a dual 4-to-1 channel analog multiplexer/demultiplexer, allowing it to select one of four input channels to connect to a single output channel.
- What is the significance of injection-current effect control in the SN74HC4852DR?
The injection-current effect control allows signals at disabled analog input channels to exceed the supply voltage without affecting the signal of the enabled analog channel, eliminating the need for external diode/resistor networks.
- What is the operating voltage range of the SN74HC4852DR?
The SN74HC4852DR operates over a voltage range of 2V to 5.5V.
- What is the maximum on-state resistance of the SN74HC4852DR?
The maximum on-state resistance is 195 Ohms.
- What is the package type and pin count of the SN74HC4852DR?
The SN74HC4852DR comes in a 16-pin SOIC (Small Outline Integrated Circuit) package.
- What are the key applications of the SN74HC4852DR?
It is particularly useful in automotive applications and other environments where signal integrity and minimal crosstalk are critical.
- Is the SN74HC4852DR pin compatible with other multiplexers?
Yes, it is pin compatible with the SN74HC4052, SN74LV4052A, and CD4052B.
- What is the operating temperature range of the SN74HC4852DR?
The operating temperature range is -40°C to 125°C.
- What is the maximum switch time (Ton, Toff) of the SN74HC4852DR?
The maximum switch time is 39ns for Ton and 78ns for Toff.
- Is the SN74HC4852DR RoHS compliant?
Yes, the SN74HC4852DR is RoHS compliant.
