Overview
The ADV7125KSTZ50-REEL, produced by Analog Devices Inc., is a high-speed, triple 8-bit digital-to-analog converter (DAC) integrated into a single monolithic chip. This device is designed for high-resolution video applications and features three separate 8-bit-wide input ports, each corresponding to red, green, and blue (RGB) video signals. The ADV7125 operates with a single +5 V or +3.3 V power supply and includes a standard TTL input interface and high impedance analog output current sources. It also supports additional video control signals such as composite SYNC and BLANK, along with a power save mode. The device is fabricated in a 5 V CMOS process, ensuring lower power dissipation and greater functionality.
Key Specifications
| Parameter | Description |
|---|---|
| Resolution | 8-bit per DAC |
| Throughput | Up to 330 MSPS (at 3.3 V) |
| Power Supply | +5 V or +3.3 V |
| Package Type | 48-lead LQFP (7mm x 7mm) |
| Operating Temperature | -40°C to 85°C |
| Analog Output | High impedance current sources, capable of driving a 37.5 Ω load |
| Video Compatibility | Compatible with RS-343A and RS-170 video standards |
| Control Signals | Composite SYNC and BLANK signals |
| Power Save Mode | Available for reduced power consumption |
Key Features
- Triple high-speed 8-bit DACs with complementary outputs
- Monolithic CMOS construction for lower power dissipation and greater functionality
- Guaranteed monotonic to eight bits
- Standard TTL input interface
- High impedance analog output current sources
- Support for composite SYNC and BLANK video control signals
- Power save mode for reduced power consumption
- Compatible with high-resolution color graphics systems, including RS-343A and RS-170
Applications
- High-resolution video systems
- Color graphics systems
- Video encoding and decoding
- Display systems requiring RGB video output
- Industrial and professional video equipment
Q & A
- What is the resolution of the ADV7125 DACs?
The ADV7125 features three 8-bit DACs.
- What are the supported power supply voltages for the ADV7125?
The device operates with a single +5 V or +3.3 V power supply.
- What is the maximum throughput of the ADV7125 at 3.3 V?
The maximum throughput is up to 330 MSPS at 3.3 V.
- What type of packages is the ADV7125 available in?
The ADV7125 is available in 48-lead LQFP and 48-lead LFCSP packages.
- What video standards is the ADV7125 compatible with?
The device is compatible with RS-343A and RS-170 video standards.
- Does the ADV7125 support any additional video control signals?
Yes, it supports composite SYNC and BLANK video control signals.
- What is the operating temperature range of the ADV7125?
The operating temperature range is -40°C to 85°C.
- Can the ADV7125 drive a 75 Ω coaxial cable directly?
Yes, each of the three RGB current outputs can directly drive a 37.5 Ω load, such as a doubly terminated 75 Ω coaxial cable.
- Does the ADV7125 have a power save mode?
Yes, the device includes a power save mode for reduced power consumption.
- What is the significance of the monolithic CMOS construction of the ADV7125?
The monolithic CMOS construction ensures greater functionality with lower power dissipation.
