Overview
The SN74HC4852DRG4, produced by Texas Instruments, is a dual 4-to-1 CMOS analog multiplexer/demultiplexer. This component is part of the HC4852 series and is designed to be pin-compatible with the SN74HC4052, SN74LV4052A, and CD4052B. It features injection-current effect control, which is particularly valuable in applications where voltages exceed normal supply voltages, such as in automotive systems. Despite being discontinued, this component remains relevant for existing designs and legacy systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|
| VCC Supply Voltage | 2 | - | 5.5 | V | - |
| VIH Input Logic High | 2.1 | - | 5.5 | V | VCC = 5.5V |
| VIL Input Logic Low | 0 | - | 1.05 | V | VCC = 5.5V |
| RON On-State Switch Resistance | 160 | 210 | 360 | Ω | VCC = 3.3V, VS = 0V to VCC, ISD = 0.5mA |
| tPD Propagation Delay | 2.3 | 8.6 | 13.5 | ns | VCC = 5.5V, CL = 50pF, Sx to D, D to Sx |
| TA Ambient Temperature | -40 | - | 125 | °C | - |
Key Features
- Injection current cross-coupling < 1mV/mA, reducing the impact of disabled analog input channels on the enabled channel.
- Low crosstalk between switches, ensuring minimal interference between channels.
- Pin compatible with SN74HC4052, SN74LV4052A, and CD4052B, facilitating easy integration into existing designs.
- Operates over a wide voltage range of 2V to 5.5V VCC.
- Latch-up performance exceeds 100mA per JESD 78, Class II, enhancing reliability.
Applications
- Analog signal switching or multiplexing: signal gating, modulator, squelch control, demodulator, chopper, commutating switch.
- Digital signal switching and multiplexing: audio and video signal routing.
- Transmission-gate logic implementation.
- Analog-to-digital and digital-to-analog conversion.
- Digital control of frequency, impedance, phase, and analog-signal gain.
- Motor speed control and battery chargers.
- DC-DC converters.
Q & A
- What is the SN74HC4852DRG4 used for?
The SN74HC4852DRG4 is a dual 4-to-1 CMOS analog multiplexer/demultiplexer used for analog and digital signal switching and multiplexing.
- What is the voltage range for the VCC supply?
The VCC supply voltage ranges from 2V to 5.5V.
- What is the significance of injection-current effect control?
The injection-current effect control prevents signals at disabled analog input channels from affecting the signal of the enabled analog channel, even when the input voltages exceed the supply voltage.
- Is the SN74HC4852DRG4 pin-compatible with other multiplexers?
Yes, it is pin-compatible with the SN74HC4052, SN74LV4052A, and CD4052B.
- What are the typical applications of this component?
Typical applications include analog signal switching, digital signal switching, transmission-gate logic, and control of frequency, impedance, phase, and analog-signal gain.
- What is the ambient temperature range for this component?
The ambient temperature range is from -40°C to 125°C.
- What is the propagation delay for the SN74HC4852DRG4?
The propagation delay ranges from 2.3ns to 13.5ns depending on the VCC and load conditions.
- Is the SN74HC4852DRG4 still in production?
No, the SN74HC4852DRG4 has been discontinued by Texas Instruments.
- What are the package options for the SN74HC4852DRG4?
The component is available in SOIC D, TVSOP DGV, and TSSOP PW packages.
- What is the on-state switch resistance of the SN74HC4852DRG4?
The on-state switch resistance ranges from 160Ω to 360Ω depending on the VCC and ISD conditions.
