LTC1667 14-Bit, 50Msps DAC

The LTC®1666/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

产品特点 Features
  • 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
封装
LTC2757 参数
应用
  • Cellular Base Stations
  • Multicarrier Base Stations
  • Wireless Communication
  • Direct Digital Synthesis (DDS)
  • xDSL Modems
  • Arbitrary Waveform Generation
  • Automated Test Equipment
  • Instrumentation
典型应用图
LTC1667 典型应用
参数
LTC1667 参数
LTC1667 订购信息和价格参考Package Variations and Pricing
器件型号 封装 引脚 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量) *
LTC1667CG SSOP 28 C $10.25  $8.05 
LTC1667CG#PBF SSOP 28 C $10.25  $8.05 
LTC1667CG#TR SSOP 28 C $8.15 
LTC1667CG#TRPBF SSOP 28 C $8.15 
LTC1667IG SSOP 28 I $11.15  $8.75 
LTC1667IG#PBF SSOP 28 I $11.15  $8.75 
LTC1667IG#TR SSOP 28 I $8.85 
LTC1667IG#TRPBF SSOP 28 I $8.85 
LTC1667 数据手册及相关资料下载
  1. 数据手册(英文) : LTC1666/LTC1667/LTC1668 - 12-Bit, 14-Bit, 14-Bit, 50Msps DAC.PDF
  2. 可靠性数据 : R380 Reliability Data .PDF
  3. 产品选型卡 : LTC2757 - ±1LSB 18-Bit DAC.PDF
  4. LT Journal: Sep 2001 New 16-Bit 50Msps DAC Offers Highest AC and DC Performance.PDF