Overview
The DAC38J82IAAVR is a dual-channel, 16-bit digital-to-analog converter (DAC) produced by Texas Instruments. This component is part of the DAC37J82/DAC38J82 family, which is characterized by its very low power consumption and high-speed operation. The DAC38J82IAAVR supports sample rates of up to 2.5 GSPS and features a JESD204B interface, making it suitable for high-performance applications such as direct up-conversion in wireless communication systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 | Bits |
| Sample Rate | Up to 2.5 | GSPS |
| Differential Nonlinearity (DNL) | ±4 | LSB |
| Integral Nonlinearity (INL) | ±6 | LSB |
| Offset Error | ±0.001 %FSR | % |
| Gain Error | ±2 %FSR | % |
| Full Scale Output Current | 20-30 | mA |
| Output Compliance Range | -0.5 to 0.6 | V |
| Output Resistance | 300 | kΩ |
| Output Capacitance | 5 | pF |
| Reference Output Voltage | 0.9 | V |
| Reference Output Current | 100 | nA |
| Package Type | 144-Ball Flip-Chip BGA (FCCSP) | |
| Power Dissipation | 1.1 W at 2.5 GSPS | W |
Key Features
- High-Speed Operation: Supports sample rates up to 2.5 GSPS.
- Low Power Consumption: Very low power dissipation, with 1.1 W at 2.5 GSPS.
- JESD204B Interface: Enables high-speed data transfer and synchronization.
- IQ Compensation: Includes Quadrature Modulator Output Multiplexer (QMC) and Group Delay Correction (QDC) for gain, offset, phase, and group delay compensation.
- Flexible Routing: Data from the internal two digital paths can be routed to any two out of the four analog outputs via the output multiplexer.
- Integrated Temperature Sensor: For monitoring temperature.
- 3/4-Wire Serial Control Bus (SPI): For complete control and configuration.
- JTAG Boundary Scan: For testing and debugging.
- Power Amplifier Protection: Programmable mechanism to protect the power amplifier from abnormal power behavior.
Applications
- Cellular Base Stations: Ideal for direct up-conversion in wireless communication systems.
- Wireless Infrastructure: Suitable for high-performance wireless infrastructure applications.
- Radar and Aerospace: Used in radar and aerospace applications requiring high-speed and low power DACs.
- Test and Measurement Equipment: Utilized in high-speed test and measurement equipment.
Q & A
- What is the maximum sample rate of the DAC38J82IAAVR?
The maximum sample rate of the DAC38J82IAAVR is up to 2.5 GSPS.
- What type of interface does the DAC38J82IAAVR use?
The DAC38J82IAAVR uses a JESD204B interface.
- How many analog outputs does the DAC38J82IAAVR have?
The DAC38J82IAAVR has four analog outputs.
- What is the power dissipation of the DAC38J82IAAVR at 2.5 GSPS?
The power dissipation of the DAC38J82IAAVR at 2.5 GSPS is 1.1 W.
- Does the DAC38J82IAAVR have integrated temperature sensing?
Yes, the DAC38J82IAAVR includes an integrated temperature sensor.
- What type of control bus does the DAC38J82IAAVR use?
The DAC38J82IAAVR uses a 3/4-wire serial control bus (SPI).
- Is the DAC38J82IAAVR pin-compatible with other models?
Yes, the DAC38J82IAAVR is pin-compatible with the DAC37J82 and DAC38J84 models.
- What is the resolution of the DAC38J82IAAVR?
The resolution of the DAC38J82IAAVR is 16 bits.
- Does the DAC38J82IAAVR support IQ compensation?
Yes, the DAC38J82IAAVR supports IQ compensation through QMC and QDC.
- What is the package type of the DAC38J82IAAVR?
The DAC38J82IAAVR comes in a 144-Ball Flip-Chip BGA (FCCSP) package.
