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Features
- -3dB Bandwidth of 330MHz
- 0.1dB Gain Flatness of 150MHz
- 700V/µs Slew Rate
- 0.01°/0.01% Differential Phase/Gain
- Low Power: 5.5mA Max
- -92dB Crosstalk and -78dB Off Isolation at 30MHz
- High-Z Outputs when Disabled
- 3pF Input Capacitance
- Ultra-Low Switching Glitch
- On-Board Control Logic
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The MAX4111/MAX4121/MAX4221 wideband video switches are optimized for high-definition, broadcast-quality, composite (HDTV, NTSC, PAL, SECAM, and RGB) video switching arrays. Their open-loop buffer amplifiers offer 0.1dB gain flatness to 150MHz. They operate from ±5V supplies and feature differential phase and gain error of only 0.01°/0.01%, respectively. The ultra-low switching glitch (13mV) is positive to avoid confusion with any sync pulse.
Ideal as building blocks in large arrays, these devices feature a constant, high input impedance and a disable function that puts the outputs into a high-impedance state and reduces the operating current to only 250µA. The open-loop architecture allows the outputs to drive capacitive loads without oscillation. Other key features include -92dB crosstalk and -78dB isolation (MAX4121).
The MAX4111/MAX4121/MAX4221 are offered in narrow plastic DIP and SO packages. See the table below for key features:
| Part | Description | Pins |
| MAX4111 | SPST, single-input, single-output switch | 8 |
| MAX4121 | SPDT, 2-input, single-output switch | 8 |
| MAX4221 | Dual, SPDT, 2-input, single-output switch | 16 |
Applications
- Broadcast/HDTV-Quality Color Signal Multiplexing
- Data Acquisition
- Graphics Color-Signal Routing
- RF and IF Routing
- Telecom Routing
- Video-Router and Crosspoint Arrays
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MAX4121
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Data Sheet
3
MAX4111-MAX4221: 330MHz Buffered Video Switches Crosspoint Building Blocks Data Sheet (Rev.0)
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