Overview
The AD8114AST, produced by Analog Devices Inc., is a high-speed, 16 × 16 video crosspoint switch matrix. This device is designed for applications requiring high-speed signal switching with excellent video performance. The AD8114AST is part of the AD8114/AD8115 family, with the AD8114 offering a gain of 1 and the AD8115 offering a gain of 2. These devices are ideal for routing high-speed signals, including video, compressed video, and data communications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| −3 dB Bandwidth | 200 | 225 | - | MHz (RL = 150 Ω, 200 mV p-p) |
| Gain Flatness | 0.1 dB | - | - | - (25 MHz, RL = 150 Ω, 200 mV p-p) |
| Propagation Delay | - | 5 | - | ns (2 V p-p, RL = 150 Ω) |
| Settling Time | - | 40 | - | ns (0.1%, 2 V step, RL = 150 Ω) |
| Slew Rate | - | 375 | - | V/µs (2 V step, RL = 150 Ω) |
| Differential Gain Error | - | 0.05% | - | (NTSC or PAL, RL = 1 kΩ) |
| Supply Voltage Range | ±4.5 | - | ±5.5 | V |
| Operating Temperature Range | −40 | - | +85 | °C |
| Package Type | - | - | - | 100-lead LQFP |
Key Features
- High-speed 16 × 16 video crosspoint switch matrix with −3 dB bandwidth greater than 200 MHz.
- Channel switch times of less than 50 ns with 1% settling.
- Excellent video performance with 0.05%/0.05° differential gain/differential phase error.
- 16 independent output buffers with programmable high impedance outputs.
- Serial or parallel digital control for channel switching, allowing daisy-chaining of multiple devices.
- Low power consumption of 700 mW (2.75 mW per point).
- Reset pin for disabling all outputs and power-on reset capability.
- Extended industrial temperature range of −40°C to +85°C.
Applications
- Routing of high-speed signals, including video (NTSC, PAL, SECAM, YUV, RGB).
- Compressed video (MPEG, wavelet).
- 3-level digital video (HDB3).
- Data communications.
- Telecommunications.
Q & A
- What is the AD8114AST used for? The AD8114AST is used for high-speed signal switching, particularly in video and data communication applications.
- What are the key differences between AD8114 and AD8115? The AD8114 has a gain of 1, while the AD8115 has a gain of 2.
- What is the bandwidth of the AD8114AST? The −3 dB bandwidth is greater than 200 MHz.
- How fast can the channels switch? Channel switch times are less than 50 ns with 1% settling.
- What is the power consumption of the AD8114AST? The power consumption is 700 mW (2.75 mW per point).
- What is the operating temperature range of the AD8114AST? The operating temperature range is −40°C to +85°C.
- How is the channel switching controlled? Channel switching can be controlled via serial or parallel digital control.
- What is the package type of the AD8114AST? The package type is a 100-lead LQFP.
- What are the supply voltage requirements? The supply voltage range is ±4.5 to ±5.5 V.
- How does the reset pin function? The reset pin allows disabling of all outputs and provides power-on reset capability.
