LTC1668

PRODUCTION

16-Bit, 50Msps DAC

Data Sheet Product Selection Table
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Overview

  • 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

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
LTC1668
16-Bit, 50Msps DAC
LTC1668, 16-Bit, 50Msps DAC LTC1668 SFDR vs fOUT and fCLOCK Product Package 1 Product Package 2 Product Package 3
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 2

Design Note 1

Technical Articles 4

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

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Tools & Simulations

IBIS Model 1

Evaluation Kits

eval board
schematic 1
DC2459A-B

LTC1668 with LT6600 Demo Board | 16-Bit, 50Msps DAC, Differential ±0.25V outputs

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Product Details

Demonstration circuit 2459A features the LTC1668, 16-bit, 50Msps current output DAC in a 28-lead SSOP package. Pin-compatible 14-bit and 12-bit versions are available for lower resolution requirements, but all DC2459A assembly types are populated with the LTC1668.


Companion Board: Arrow SoCkit (Altera Cyclone 5 SoC)


Companion Board: C5G (Altera Cyclone 5)


Companion Board: DE0 Nano (Altera Cyclone 4)


Companion Board: Embedded Micro Mojo (Xilinx Spartan 6)


Companion Board: Numato Labs Mimas (Xilinx Spartan 6)


 


eval board
schematic 2
schematic 3
schematic 4
schematic 5
schematic 6
DC2459A-C

LTC1668 with LT1468 Demo Board | 16-Bit, 50Msps DAC, Single-Ended ±10V outputs

Buy Now View Details

Product Details

Demonstration circuit 2459A features the LTC1668, 16-bit, 50Msps current output DAC in a 28-lead SSOP package. Pin-compatible 14-bit and 12-bit versions are available for lower resolution requirements, but all DC2459A assembly types are populated with the LTC1668.


Companion Board: Arrow SoCkit (Altera Cyclone 5 SoC)


Companion Board: C5G (Altera Cyclone 5)


Companion Board: DE0 Nano (Altera Cyclone 4)


Companion Board: Embedded Micro Mojo (Xilinx Spartan 6)


Companion Board: Numato Labs Mimas (Xilinx Spartan 6)

eval board
schematic 7
schematic 8
schematic 9
schematic 10
schematic 11
DC2459A-A

LTC1668 with LT1812 Demo Board | 16-Bit, 50Msps DAC, Single-Ended ±1V outputs

Buy Now View Details

Product Details

Demonstration circuit 2459A features the LTC1668, 16-bit, 50Msps current output DAC in a 28-lead SSOP package. Pin-compatible 14-bit and 12-bit versions are available for lower resolution requirements, but all DC2459A assembly types are populated with the LTC1668.


Companion Board: Arrow SoCkit (Altera Cyclone 5 SoC)


Companion Board: C5G (Altera Cyclone 5)


Companion Board: DE0 Nano (Altera Cyclone 4)


Companion Board: Embedded Micro Mojo (Xilinx Spartan 6)


Companion Board: Numato Labs Mimas (Xilinx Spartan 6)


Companion Board: DC2026C - Linduino One Isolated USB Demo Board: An Arduino- and QuikEval-Compatible Code Development Platform

eval board
schematic 12
schematic 13
schematic 14
schematic 15
schematic 16
DC245A-A

LTC1668CG | 16-Bit, High Speed Differential Current Output DAC

Buy Now View Details

Product Details

DC245A-A: Demo Board for the LTC1668 16-Bit, 50Msps DAC.


 
DC2459A-B
LTC1668 with LT6600 Demo Board | 16-Bit, 50Msps DAC, Differential ±0.25V outputs
DC2459A - Schematic
DC2459A-C
LTC1668 with LT1468 Demo Board | 16-Bit, 50Msps DAC, Single-Ended ±10V outputs
DC2459A-C Demo Board DC2459A-C Demo Board DC2459A-C Demo Board DC2459A-C Demo Board DC2459A - Schematic
DC2459A-A
LTC1668 with LT1812 Demo Board | 16-Bit, 50Msps DAC, Single-Ended ±1V outputs
DC2459A-A Demo Board DC2459A-A Demo Board DC2459A-A Demo Board DC2459A-A Demo Board DC2459A - Schematic
DC245A-A
LTC1668CG | 16-Bit, High Speed Differential Current Output DAC
DC245A-A Demo Board DC245A-A Demo Board DC245A-A Demo Board DC245A-A Demo Board DC245A-A - Schematic

Reference Designs

DE-10 Nano Kit
DE-10 Nano Kit
DE-10 Nano Kit Block Diagram
DE-10 Nano Power Tree
Terasic DE10-Nano Kit Circuits from the lab

View Detailed Reference Design

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
Terasic DE10-Nano Kit
DE-10 Nano Kit
DE-10 Nano Kit Block Diagram
DE-10 Nano Power Tree

Latest Discussions

5 Weeks Ago
The power up sequence requirements of LTC1668
13 Weeks Ago
DC2459A Demo board requirements
1 Years Ago
ltc1668 output impedance tolerance
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