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LTC1668

Features: 50Msps Update Rate16-Bit ResolutionHigh Spectral Purity: 87dB SFDR at 1MHz fOUTDifferential Current Outputs30ns Settling Time5pV-s Glitch ImpulseLow Power: 180mW from 5V SuppliesTTL/CMOS (3.3V or 5V) InputsSmall Package: 28-Pin SSOPApplicationCellular Base StationsMulticarrier Base Stat...

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SeekIC No. : 004401789 Detail

LTC1668: Features: 50Msps Update Rate16-Bit ResolutionHigh Spectral Purity: 87dB SFDR at 1MHz fOUTDifferential Current Outputs30ns Settling Time5pV-s Glitch ImpulseLow Power: 180mW from 5V SuppliesTTL/CMOS ...

LTC1668 Data Sheet

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Part Number:
LTC1668
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

50Msps Update Rate
16-Bit Resolution
High Spectral Purity: 87dB SFDR at 1MHz fOUT
Differential Current Outputs
30ns Settling Time
5pV-s Glitch Impulse
Low Power: 180mW from 5V Supplies
TTL/CMOS (3.3V or 5V) Inputs
Small Package: 28-Pin SSOP


Application

Cellular Base Stations
Multicarrier Base Stations
Wireless Communication
Direct Digital Synthesis (DDS)
xDSL Modems
Arbitrary Waveform Generation
Automated Test Equipment
Instrumentation


Pinout

Connection Diagram


Specifications

Supply Voltage (VDD)................................................  6V
Negative Supply Voltage (VSS) ............................... 6V
Total Supply Voltage (VDD to VSS )..........................  12V
Digital Input Voltage ..................0.3V to (VDD  + 0.3V)
Analog Output Voltage
(IOUT Aand IOUT B )............ (VSS  0.3V) to (VDD+ 0.3V)
Power Dissipation............................................. 500mW
Operating Temperature Range
LTC1668C ................................................... 0 C to 70 C
LTC1668I...............................................  40 C to 85 C
Storage Temperature Range................ 65 C to 150 C
Lead Temperature (Soldering, 10 sec)..................300 C


Description

The LTC®1668 is a 16-bit, 50Msps differential currentoutput DAC implemented on a high performance BiCMOSprocess with laser trimmed, thin-film resistors. The com-bination of a novel current-steering architecture and ahigh performance  process produces a DAC with excep-tional AC and DC performance. This is the first 16-bit DACin the marketplace to exhibit an SFDR (spurious freedynamic range) of 87dB for an output signal frequency of1MHz.

Operating from 5V supplies, the LTC1668 can be con-figured to provide full-scale output currents up to 10mA.The differential current outputs of the DAC allow single-ended or true differential operation. The 1V to 1V output compliance of the LTC1668 allows the outputs to be con-nected directly to external resistors to produce a differ-ential output voltage without degrading the converter'slinearity. Alternatively, the outputs can be connected to the summing junction of a high speed operational amplifier,or to a transformer.

The LTC1668 is available in a 28-pin SSOP and is fullyspecified over the industrial temperature range.




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