Overview
The ADV7123JST240, produced by Analog Devices Inc., is a high-speed, triple 10-bit digital-to-analog converter (DAC) integrated into a single monolithic chip. This device is designed for high-resolution video and graphics applications, offering compatibility with various standards such as RS-343A and RS-170. It features a TTL-compatible input interface, internal reference voltage, and a high impedance analog output current source. The ADV7123 operates on a single 5 V or 3.3 V power supply and is available in a 48-lead LQFP package, ensuring low power dissipation and a wide industrial temperature range of −40°C to +85°C.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution (Each DAC) | 10 | Bits | ||
| Throughput Rate | 240 | MSPS | ||
| Supply Voltage | 3.0 | 3.3 | 5.25 | V |
| Output Current Range | 2.0 | 26.5 | mA | |
| Input High Voltage (VIH) | 2.0 | V | ||
| Input Low Voltage (VIL) | 0.8 | V | ||
| Power Dissipation | 30 | mW @ 3 V | ||
| Standby Supply Current | 2.1 | 5.0 | mA | |
| Operating Temperature Range | −40 | +85 | °C |
Key Features
- TTL-compatible inputs and internal reference voltage of 1.235 V.
- Complementary outputs and high impedance analog output current source.
- Single 5 V or 3.3 V power supply operation.
- Low power dissipation (minimum 30 mW at 3 V) and low power standby mode (typical 6 mW at 3 V).
- Industrial temperature range of −40°C to +85°C.
- 48-lead LQFP package.
- Power save mode and additional video control signals (composite SYNC and BLANK).
Applications
- Digital video systems (e.g., 1600 × 1200 @ 100 Hz).
- High resolution color graphics.
- Digital radio modulation.
- Image processing.
- Instrumentation.
- Video signal reconstruction.
Q & A
- What is the throughput rate of the ADV7123JST240?
The throughput rate of the ADV7123JST240 is 240 MSPS. - What are the compatible video standards for the ADV7123JST240?
The ADV7123JST240 is compatible with RS-343A and RS-170 video standards. - What is the resolution of each DAC in the ADV7123JST240?
Each DAC in the ADV7123JST240 has a resolution of 10 bits. - What is the operating temperature range of the ADV7123JST240?
The operating temperature range of the ADV7123JST240 is −40°C to +85°C. - What is the package type of the ADV7123JST240?
The ADV7123JST240 is available in a 48-lead LQFP package. - Does the ADV7123JST240 have a power save mode?
Yes, the ADV7123JST240 has a power save mode. - What are the typical power dissipation and standby current of the ADV7123JST240?
The typical power dissipation is 30 mW at 3 V, and the typical standby current is 6 mW at 3 V. - What are the output current range and internal reference voltage of the ADV7123JST240?
The output current range is 2.0 mA to 26.5 mA, and the internal reference voltage is 1.235 V. - Is the ADV7123JST240 RoHS compliant?
No, the ADV7123JST240 is not RoHS compliant according to some sources. - What are some common applications of the ADV7123JST240?
Common applications include digital video systems, high resolution color graphics, digital radio modulation, image processing, instrumentation, and video signal reconstruction.
