Overview
The AD9708ARRL is an 8-bit, high-performance digital-to-analog converter (DAC) from Analog Devices Inc., part of the TxDAC series. This CMOS DAC is designed for low power consumption and high-speed operation, making it suitable for various high-frequency applications. The AD9708ARRL features a nominal full-scale output current of 20 mA and an output impedance of greater than 100 kΩ. It operates with a single +5 V or +3 V supply and has separate power supply inputs for the analog and digital sections, allowing independent operation over a 2.7 V to 5.5 V range.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 8 bits |
| Update Rate | Up to 125 MSPS |
| Output Current | Nominal full-scale output current: 20 mA |
| Output Impedance | > 100 kΩ |
| Differential Non-Linearity (DNL) | 1/4 LSB |
| Integral Non-Linearity (INL) | 1/4 LSB |
| SINAD @ 5 MHz Output | 50 dB |
| Power Dissipation | 175 mW @ 5 V, 45 mW @ 3 V |
| Power-Down Mode | 20 mW @ 5 V |
| Supply Voltage | Single +5 V or +3 V |
| Package | 28-Lead SOIC and 28-Lead TSSOP |
Key Features
- Member of the pin-compatible TxDAC product family
- Edge-triggered latches and segment decoding logic circuitry
- On-chip 1.20 V reference voltage
- Fast settling time: 35 ns to 0.1% full-scale settling
- Differential current outputs
- Separate power supply inputs for analog and digital sections
- Low power consumption with power-down mode
Applications
- Communications
- Signal reconstruction
- Instrumentation
Q & A
- What is the resolution of the AD9708ARRL DAC?
The AD9708ARRL has an 8-bit resolution. - What is the maximum update rate of the AD9708ARRL?
The maximum update rate is up to 125 MSPS. - What is the nominal full-scale output current of the AD9708ARRL?
The nominal full-scale output current is 20 mA. - What is the output impedance of the AD9708ARRL?
The output impedance is greater than 100 kΩ. - What are the power supply options for the AD9708ARRL?
The AD9708ARRL can operate with a single +5 V or +3 V supply. - What are the package options for the AD9708ARRL?
The AD9708ARRL is available in 28-Lead SOIC and 28-Lead TSSOP packages. - What is the SINAD at 5 MHz output for the AD9708ARRL?
The SINAD at 5 MHz output is 50 dB. - Does the AD9708ARRL have a power-down mode?
Yes, the AD9708ARRL has a power-down mode that reduces power consumption to 20 mW @ 5 V. - What are the typical applications of the AD9708ARRL?
The typical applications include communications, signal reconstruction, and instrumentation. - How is the full-scale output current regulated in the AD9708ARRL?
The full-scale output current is regulated by an external resistor (RSET) in combination with the on-chip reference control amplifier and voltage reference VREFIO.
