The MAX4529 is a low-voltage T-switch designed for switching RF and video signals from DC to 300MHz in 50- and 75-ohm systems. The switch is constructed in a “T” configuration, ensuring excellent high-frequency off isolation of -80dB at 10MHz. The MAX4529 can handle Rail-to-Rail® analog signals in either direction. On-resistance (70 ohms max) is flat (0.5 ohms max) over the specified signal range, using ±5V sup- plies. The off leakage current is less than 1nA at +25°C and 20nA at +85°C. This CMOS switch can operate with dual power sup- plies ranging from ±2.7V to ±6V or a single supply between +2.7V and +12V. All digital inputs have 0.8V/2.4V logic thresholds, ensuring both TTL- and CMOS-logic compatibility when using ±5V or a single +5V supply.
The MAX4529 is a low‑voltage T‑switch designed for RF and video signal routing from DC to 300 MHz in 50 Ω and 75 Ω systems. It handles rail‑to‑rail analog signals in both directions and is compatible with TTL and CMOS logic levels. Typical applications include RF switching, video signal routing, high‑speed data acquisition, test equipment, and networking.
Key electrical characteristics include dual‑supply operation from ±2.7 V to ±6 V (or single‑supply +2.7 V to +12 V), on‑resistance up to 70 Ω (flat 0.5 Ω), off‑isolation of –80 dB at 10 MHz, and input logic thresholds of 0.8 V/2.4 V. The device features >2000 V ESD protection, low power consumption (<1 µW), and extensive grounding and layout recommendations for high‑frequency performance.
| Off isolation (10 MHz) | -80 dB |
|---|---|
| Supply voltage range | ±2.7 V to ±6 V (dual) or +2.7 V to +12 V (single) |
| On‑resistance | 70 Ω max, flat 0.5 Ω max |
| Input logic thresholds | 0.8 V low, 2.4 V high |
| ESD protection | >2000 V per Method 3015.7 |
It operates from dual ±2.7 V to ±6 V supplies or from a single +2.7 V to +12 V supply.
The device provides –80 dB off isolation at 10 MHz.
Logic‑low is 0.8 V and logic‑high is 2.4 V.
Off‑leakage current is less than 1 nA at +25 °C and less than 20 nA at +85 °C.