Dual-Channel, 12-Bit, 275-MSPS Digital-to-Analog Converter (DAC)
Product details
Parameters
Package | Pins | Size
Features
- 12-Bit dual transmit DAC
- 275 MSPS Update rate
- Single supply: 3 V to 3.6 V
- High SFDR: 85 dBc at 5 MHz
- High IMD3: 78 dBc at 15.1 and 16.1 MHz
- WCDMA ACLR: 70 dB at 30.72 MHz
- Independent or single resistor gain control
- Dual or interleaved data
- On-chip 1.2-V reference
- Low power: 330 mW
- Power-down mode: 15 mW
- Package: 48-Pin TQFP
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Description
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.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | DAC5662 Dual, 12-BIT 275 MSPS Digital-to-Analog Converter datasheet (Rev. C) | Aug. 12, 2020 |
Technical article | Keys to quick success using high-speed data converters | Oct. 13, 2020 | |
Application note | Q4 2009 Issue Analog Applications Journal | Sep. 24, 2018 | |
Technical article | Digital signal processing in RF sampling DACs – part 2 | Apr. 04, 2017 | |
Technical article | Digital signal processing in RF sampling DACs - part 1 | Feb. 13, 2017 | |
Technical article | Why phase noise matters in RF sampling converters | Nov. 28, 2016 | |
Application note | Wideband Complementary Current Output DAC Single-Ended Interface (Rev. A) | May 08, 2015 | |
Application note | High Speed, Digital-to-Analog Converters Basics (Rev. A) | Oct. 23, 2012 | |
Application note | Interfacing op amps to high-speed DACs, Part 2: Current-sourcing DACs | Oct. 04, 2009 | |
Application note | Passive Terminations for Current Output DACs | Nov. 10, 2008 | |
User guide | DAC5672/62/52 14- and 12-Bit Dual Channel DAC EVM (Rev. B) | Mar. 24, 2006 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
This tool is designed to enable DAC5662 evaluation under various signals, reference and supply conditions.
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
TQFP (PFB) | 48 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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