Overview
The ADV7125JST240, produced by Analog Devices Inc., is a triple high-speed digital-to-analog converter (DAC) integrated on a single monolithic chip. This device features three high-speed, 8-bit video DACs with complementary outputs, a standard TTL input interface, and high impedance analog output current sources. It operates with a single +5 V or +3.3 V power supply and clock, making it highly efficient and functional. The ADV7125JST240 is designed for use in various high-resolution color graphics systems, including those compliant with RS-343A and RS-170 standards. Its monolithic CMOS construction ensures greater functionality with lower power dissipation, and it includes additional video control signals such as composite SYNC and BLANK, as well as a power-save mode.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|
| Resolution (Each DAC) | 8 | - | - | Bits | - |
| Throughput (at 3.3 V) | - | - | 330 | MSPS | VAA = 3.3 V |
| Integral Nonlinearity (BSL) | -1 | ±0.4 | +1 | LSB | VAA = 5 V ± 5%, VREF = 1.235 V, RSET = 560 Ω |
| Power Supply Voltage | 4.75 | - | 5.25 | V | - |
| Power Dissipation (Min @ 3 V) | 30 | - | - | mW | - |
| Power Dissipation (Typ @ 3 V in Standby) | 6 | - | - | mW | - |
| Operating Temperature Range | -40 | - | +85 | °C | - |
Key Features
- Triple high-speed, 8-bit video DACs with complementary outputs.
- Standard TTL input interface and high impedance analog output current sources.
- Single +5 V or +3.3 V power supply and clock required for operation.
- Guaranteed monotonic to eight bits and low glitch performance due to monolithic CMOS construction.
- Additional video control signals: composite SYNC and BLANK, as well as a power-save mode.
- Capable of directly driving a 37.5 Ω load, such as a doubly terminated 75 Ω coaxial cable.
- Compatible with high-resolution color graphics systems, including RS-343A and RS-170.
Applications
- Digital Video Systems: Suitable for high-resolution video applications.
- High Resolution Color Graphics: Compatible with various graphics standards.
- Digital Radio Modulation: Can be used in radio modulation systems.
- Image Processing: Ideal for image processing and reconstruction tasks).
- Instrumentation: Used in various instrumentation applications requiring high-speed DACs).
- Video Signal Reconstruction: Effective in reconstructing video signals with high fidelity).
Q & A
- What is the ADV7125JST240?
The ADV7125JST240 is a triple high-speed digital-to-analog converter (DAC) produced by Analog Devices Inc..
- What are the key features of the ADV7125JST240?
It includes three high-speed, 8-bit video DACs, a standard TTL input interface, high impedance analog output current sources, and additional video control signals like SYNC and BLANK).
- What power supply voltage does the ADV7125JST240 require?
The device operates with a single +5 V or +3.3 V power supply).
- What is the throughput of the ADV7125JST240 at 3.3 V?
The throughput is up to 330 MSPS at 3.3 V).
- Is the ADV7125JST240 compatible with high-resolution color graphics systems?
Yes, it is compatible with systems such as RS-343A and RS-170).
- What is the operating temperature range of the ADV7125JST240?
The operating temperature range is from -40°C to +85°C).
- Can the ADV7125JST240 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 ADV7125JST240 have a power-save mode?
Yes, it includes a power-save mode to reduce power consumption when not in active use).
- What are some typical applications of the ADV7125JST240?
Typical applications include digital video systems, high-resolution color graphics, digital radio modulation, image processing, instrumentation, and video signal reconstruction).
- What is the resolution of each DAC in the ADV7125JST240?
Each DAC has a resolution of 8 bits).
