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LTC1666/LTC1667/LTC1668: 12-Bit, 14-Bit, 16-Bit, 50Msps DAC Data Sheet10/3/2017PDF882K
Overview
Features and Benefits
- 50Msps Update Rate
- Pin Compatible 12-Bit, 14-Bit and 16-Bit Devices
- High Spectral Purity: 87dB SFDR at 1MHz fOUT
- 5pV-s Glitch Impulse
- Differential Current Outputs
- 20ns Settling Time
- Low Power: 180mW from ±5V Supplies
- TTL/CMOS (3.3V or 5V) Inputs
- Small Package: 28-Pin SSOP
Product Details
The LTC1666/LTC1667/LTC1668 are 12-/14-/16-bit, 50Msps differential current output DACs implemented on a high performance BiCMOS process with laser trimmed, thin-film resistors. The combination of a novel current-steering architecture and a high performance process produces DACs with exceptional AC and DC performance. The LTC1668 is the first 16-bit DAC in the marketplace to exhibit an SFDR (spurious free dynamic range) of 87dB for an output signal frequency of 1MHz.
Operating from ±5V supplies, the LTC1666/LTC1667/LTC1668 can be configured to provide full-scale output currents up to 10mA. The differential current outputs of the DACs allow single-ended or true differential operation. The –1V to 1V output compliance of the LTC1666/LTC1667/LTC1668 allows the outputs to be connected directly to external resistors to produce a differential output voltage without degrading the converter’s linearity. Alternatively, the outputs can be connected to the summing junction of a high speed operational amplifier, or to a transformer.
The LTC1666/LTC1667/LTC1668 are pin compatible and are available in a 28-pin SSOP and are fully specified over the industrial temperature range.
Applications
- Cellular Base Stations
- Multicarrier Base Stations
- Wireless Communication
- Direct Digital Synthesis (DDS)
- xDSL Modems
- Arbitrary Waveform Generation
- Automated Test Equipment
- Instrumentation
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (4)
Documentation & Resources
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DAC Selector Card9/21/2015PDF587K
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Real-World Plug-ins for Terasic DE10-Nano Kit9/11/2017
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High Performance Op Amps Deliver Precision Waveform Synthesis8/1/2002 LT Journal
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New 16-Bit 50Msps DAC Offers Highest AC and DC Performance9/1/2001 LT Journal
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LTC1668 DAC and LT1807 Op Amp Achieve 90ns Settling to 16 Bits and 83dB SFDR in a Small Footprint9/1/2001 LT Journal
Tools & Simulations
IBIS Models
Reference Designs (1)
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
PCN-PDN Information
Support & Discussions
LTC1668 Discussions
Sample & Buy
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Evaluation Boards
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.