LTC1667 - LTC1667是14-Bit, 50Msps DAC
LTC1667是Linear公司的一款高速 DAC产品，LTC1667是14-Bit, 50Msps DAC，本站介绍了LTC1667的封装应用图解、特点和优点、功能等，并给出了与LTC1667相关的凌力尔特元器件型号供参考。
LTC1667 - 14-Bit, 50Msps DAC
LTC1667 - 14-Bit, 50Msps DAC - Linear Technology（凌力尔特）
功能描述
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.
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特点
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应用
Cellular Base Stations Multicarrier Base Stations Wireless Communication Direct Digital Synthesis (DDS) xDSL Modems Arbitrary Waveform Generation Automated Test Equipment Instrumentation以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）
| 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) |
| LTC1667CG | SSOP-28 | C | $13.80 | $10.80 |
| LTC1667CG#PBF | SSOP-28 | C | $13.80 | $10.80 |
| LTC1667CG#TR | SSOP-28 | C | | $10.90 |
| LTC1667CG#TRPBF | SSOP-28 | C | | $10.90 |
| LTC1667IG | SSOP-28 | I | $15.00 | $11.75 |
| LTC1667IG#PBF | SSOP-28 | I | $15.00 | $11.75 |
| LTC1667IG#TR | SSOP-28 | I | | $11.85 |
| LTC1667IG#TRPBF | SSOP-28 | I | | $11.85 |
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