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ISL84543IB from INTERSIL

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ISL84543IB

Manufacturer: INTERSIL, INTERSI

Low-Voltage/ Single Supply/ Dual SPST/ SPDT Analog Switches

Partnumber Manufacturer Quantity Availability
ISL84543IB INTERSIL, INTERSI 1389 In Stock

Description and Introduction

Low-Voltage/ Single Supply/ Dual SPST/ SPDT Analog Switches The ISL84543IB is a quad SPST (Single-Pole Single-Throw) analog switch manufactured by INTERSIL (now part of Renesas Electronics). Below are its key specifications, descriptions, and features based on available data:

### **Specifications:**
- **Configuration:** Quad SPST (4 independent switches)
- **Supply Voltage Range (V+ to V-):** ±4.5V to ±20V (dual supply) or +4.5V to +20V (single supply)
- **On-Resistance (RON):** 85Ω (typical) at ±15V supply
- **On-Resistance Matching:** 5Ω (typical)
- **On-Resistance Flatness:** 10Ω (typical)
- **Charge Injection:** 10pC (typical)
- **Off-Leakage Current:** 0.5nA (typical at +25°C)
- **On-Leakage Current:** 0.5nA (typical at +25°C)
- **Bandwidth (-3dB):** 45MHz (typical)
- **Switching Time (tON/tOFF):** 200ns/150ns (typical)
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** 16-Lead SOIC (Small Outline IC)

### **Descriptions:**
- The ISL84543IB is designed for high-voltage analog signal switching applications.
- It offers low on-resistance and minimal signal distortion, making it suitable for precision audio, video, and data acquisition systems.
- The device supports both single and dual power supply configurations.
- Each switch is independently controlled via TTL/CMOS-compatible logic inputs.

### **Features:**
- Low on-resistance (85Ω typical).
- High bandwidth (45MHz) for signal integrity.
- Low charge injection (10pC) for reduced glitches.
- Wide supply voltage range (±4.5V to ±20V or +4.5V to +20V).
- TTL/CMOS-compatible logic inputs.
- Break-before-make switching action.
- ESD protection (≥2kV HBM).
- Pb-free and RoHS compliant.

This information is based on the manufacturer's datasheet and technical documentation. For detailed application-specific guidance, refer to the official datasheet.

Application Scenarios & Design Considerations

Low-Voltage/ Single Supply/ Dual SPST/ SPDT Analog Switches

Alternative Part Number

  • DG9431DY --: Pin-compatible dual SPST analog switch with similar low on-resistance and fast switching, widely available as a drop-in replacement.
  • MAX4544ESA --: Low-voltage dual SPST analog switch with comparable RDS(on) and supply range, suitable for signal routing applications.
  • ADG436BRZ --: Dual SPST CMOS switch offering similar on-resistance and low leakage, usable as a functional substitute in most circuits.
  • MAX4543ESA --: Dual SPST CMOS analog switch offering comparable Ron and supply range, suitable drop-in substitute for the ISL84543 in most signal-switching designs.
  • ADG453BRZ --: Low-charge-injection dual SPST switch with similar electrical characteristics, usable as an alternative when slightly different package and Ron tolerances are acceptable.
  • ADG736BRMZ --: Dual SPDT CMOS switch with low on-resistance and single-supply operation, a solid alternative when the ISL84543 is unavailable.

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