The DAC5681 is a 16-bit 1.0 GSPS digital-to-analog converter (DAC) with wideband LVDS data input and internal voltage reference. The DAC5681 offers superior linearity and noise performance.
The DAC5681 integrates a wideband LVDS port with on-chip termination, providing full 1.0 GSPS data transfer into the DAC and lower EMI than traditional CMOS data interfaces. An on-chip delay lock loop (DLL) simplifies LVDS interfacing by providing skew control for the LVDS input data clock.
The current-steering architecture of the DAC5681 consists of a segmented array of current sinking switches directing up to 20mA of full-scale current to complementary output nodes. An accurate on-chip voltage reference is temperature-compensated and delivers a stable 1.2-V reference voltage. Optionally, an external reference may be used.
The DAC5681 is characterized for operation over the industrial temperature range of –40°C to 85°C and is available in a 64-pin QFN package. The device is pin upgradeable to the other members of the family: the DAC5681Z and DAC5682Z. The single-channel DAC5681Z and dual-channel DAC5682Z both provide optional 2x/4x interpolation and a clock multiplying PLL.
|Sample / Update Rate (MSPS)|
|Operating Temperature Range (C)|
|Approx. Price (US$)|
|Current Sink||Current Sink||Current Sink|
|Parallel LVDS||Parallel LVDS||Parallel LVDS|
| 2x |
| 2x |
|-40 to 85||-40 to 85||-40 to 85|
|27.50 | 1ku||30.95 | 1ku||35.15 | 1ku|
|Sample & Buy||Sample & Buy||Sample & Buy|
|Part #||Name||Product Family||Comments|
|CDCE72010||10 Outputs Low Jitter Clock Synchronizer and Jitter Cleaner||Clock Jitter Cleaners - Single-Loop PLL||10 Outputs Low Jitter Clock Synchronizer and Jitter Cleaner|
|CDCE62005||5/10 Outputs Clock Generator/Jitter Cleaner with Integrated Dual VCO||Clock Generators - Low Jitter <1psec RMS||5/10 Outputs Clock Generator/Jitter Cleaner with Integrated Dual VCO|
|OPA695||Ultra-Wideband, Current-Feedback Operational Amplifier with Disable||OPERATIONAL AMPLIFIER - HIGH SPEED AMPLIFIER||Ultra-Wideband, Current-Feedback Operational Amplifier with Disable|
|THS3095||Single- High-Voltage, Low Distortion, Current-Feedback Operational Amplifier with Power-down||OPERATIONAL AMPLIFIER - HIGH SPEED AMPLIFIER||Single- High-Voltage, Low Distortion, Current-Feedback Operational Amplifier with Power-down|
|LMK04806||Low Noise Clock Jitter Cleaner With Dual Cascaded PLLs and Integrated 2.5 GHz VCO||Clock Jitter Cleaners - Dual / Cascaded PLL||Recommended clocking solution, providing low jitter clock outputs to maximize converter performance.|