Overview
The DAC5681ZIRGCR 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 DAC5681ZIRGCR 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 | LSB | ||
| Differential Nonlinearity (DNL) | ±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 Range | –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
- Wideband LVDS data input with on-chip termination
- On-board clock multiplier and PLL/VCO
- Internal 1.2-V reference voltage
- Configurable FIR filters in low-pass or high-pass mode
- On-chip delay lock loop (DLL) for LVDS interfacing
- Differential scalable output current from 2 mA to 20 mA
- 64-pin VQFN package with a size of 9 mm × 9 mm
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 DAC5681ZIRGCR?
The DAC5681ZIRGCR has a resolution of 16 bits.
- What is the maximum update rate of the DAC5681ZIRGCR?
The maximum update rate is 1.0 GSPS.
- What type of data input does the DAC5681ZIRGCR use?
The DAC5681ZIRGCR uses a wideband LVDS data input.
- Does the DAC5681ZIRGCR have integrated interpolation filters?
- What is the operating temperature range of the DAC5681ZIRGCR?
The operating temperature range is from –40°C to 85°C.
- What is the package type of the DAC5681ZIRGCR?
The package type is a 64-pin VQFN.
- What are the typical applications of the DAC5681ZIRGCR?
Typical applications include cellular base stations, broadband wireless access devices, WiMAX 802.16, fixed wireless backhaul, and cable modem termination systems.
- Does the DAC5681ZIRGCR have an internal voltage reference?
- Can the FIR filters be configured in different modes?
- What is the purpose of the on-chip delay lock loop (DLL)?
The on-chip DLL simplifies LVDS interfacing by providing skew control for the LVDS input data clock.
