Overview
The DAC5681ZIRGCT is a high-performance 16-bit digital-to-analog converter (DAC) produced by Texas Instruments. This device is designed for high-speed applications, offering a 1.0 GSPS update rate and integrated 2x to 4x interpolation filters. It features a wideband LVDS data input, on-board clock multiplier, and internal voltage reference, making it suitable for various high-frequency signal processing tasks. The DAC5681ZIRGCT is characterized by its superior linearity, noise, crosstalk, and phase noise performance, and it operates over the industrial temperature range of –40°C to 85°C.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 16 | - | - | Bits |
| Update Rate | - | 1.0 | - | GSPS |
| Integral Nonlinearity (INL) | -4 | - | 4 | LSB |
| Differential Nonlinearity (DNL) | -2 | - | 2 | LSB |
| Full Scale Output Current | 2 | - | 20 | mA |
| Analog Supply Voltage (AVDD) | 3 | 3.3 | 3.6 | V |
| Digital Supply Voltage (DVDD) | 1.7 | 1.8 | 1.9 | V |
| Clock Supply Voltage (CLKVDD) | 1.7 | 1.8 | 1.9 | V |
| Operating Temperature | -40 | - | 85 | °C |
| Package Type | - | - | - | 64-Pin VQFN |
Key Features
- 16-bit digital-to-analog converter with 1.0 GSPS update rate
- Integrated 2x to 4x interpolation filters configurable in low-pass or high-pass mode
- Wideband LVDS data input with on-chip termination
- On-board clock multiplier and PLL/VCO for clock generation
- Internal 1.2-V reference and external reference option
- 2 to 20-mA differential scalable output
- On-chip delay lock loop (DLL) for LVDS interfacing
- Low power consumption with sleep mode options
Applications
- Cellular Base Stations
- Broadband Wireless Access (BWA) Devices
- WiMAX 802.16
- Fixed Wireless Backhaul
- Cable Modem Termination System (CMTS)
Q & A
- What is the resolution of the DAC5681ZIRGCT?
The DAC5681ZIRGCT has a resolution of 16 bits. - What is the maximum update rate of the DAC5681ZIRGCT?
The maximum update rate is 1.0 GSPS. - What type of data input does the DAC5681ZIRGCT use?
The DAC5681ZIRGCT uses a wideband LVDS data input. - Does the DAC5681ZIRGCT have an internal voltage reference?
Yes, it has an internal 1.2-V reference, and it also supports an external reference option. - What is the operating temperature range of the DAC5681ZIRGCT?
The operating temperature range is –40°C to 85°C. - What is the package type of the DAC5681ZIRGCT?
The package type is a 64-Pin VQFN. - What are the key applications of the DAC5681ZIRGCT?
Key applications include cellular base stations, broadband wireless access devices, WiMAX 802.16, fixed wireless backhaul, and cable modem termination systems. - Does the DAC5681ZIRGCT support sleep mode for power reduction?
Yes, it supports sleep mode for reduced power dissipation. - What is the maximum full-scale output current of the DAC5681ZIRGCT?
The maximum full-scale output current is 20 mA. - Is the DAC5681ZIRGCT suitable for high-frequency signal processing?
Yes, it is designed for high-speed applications with superior linearity, noise, crosstalk, and phase noise performance.
