The DAC5662 is a monolithic, dual-channel 12-bit high-speed digital-to-analog converter (DAC) with on-chip voltage reference.
Operating with update rates of up to 275 MSPS, the DAC5662 offers exceptional dynamic performance and tight-gain and offset matching, characteristics that make it suitable in either I/Q baseband or direct IF communication applications.
Each DAC has a high-impedance differential current output, suitable for single-ended or differential analog-output configurations. External resistors allow scaling the full-scale output current for each DAC separately or together, typically between 2 mA and 20 mA. 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 DAC5662 has two 12-bit parallel input ports with separate clocks and data latches. For flexibility, the DAC5662 also supports multiplexed data for each DAC on one port when operating in the interleaved mode.
The DAC5662 has been specifically designed for a differential transformer coupled output with a 50-Ω doubly terminated load. For a 20-mA full-scale output current a 4:1 impedance ratio (resulting in an output power of 4 dBm) and 1:1 impedance ratio transformer (-2 dBm output power) are supported.
The DAC5662 is available in a 48-pin thin quad FlatPack (TQFP). Pin compatibility between family members provides 12-bit (DAC5662) and 14-bit (DAC5672) resolution. Furthermore, the DAC5662 is pin compatible to the DAC2902 and AD9765 dual DACs. The device is characterized for operation over the industrial temperature range of -40°C to 85°C.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | DAC5662 Dual, 12-BIT 275 MSPS Digital-to-Analog Converter datasheet (Rev. D) | PDF | HTML | Oct 14, 2021 |
| Analog design Journal | Q4 2009 Issue Analog Applications Journal | Sep 24, 2018 | ||
| Application note | Wideband Complementary Current Output DAC Single-Ended Interface (Rev. A) | May 8, 2015 | ||
| Application note | High Speed, Digital-to-Analog Converters Basics (Rev. A) | Oct 23, 2012 | ||
| Analog design Journal | Interfacing op amps to high-speed DACs, Part 2: Current-sourcing DACs | Oct 4, 2009 | ||
| Application note | Passive Terminations for Current Output DACs | Nov 10, 2008 |
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High-speed digital-to-analog converters (DACs) most often use a (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| TQFP (PFB) | 48 | Ultra Librarian |
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