LTC1743 - 12-Bit, 50Msps ADC

The LTC®1743 is a 50Msps, sampling 12-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. Pin selectable input ranges of ±1V and ±1.6V along with a resistor programmable mode allow the LTC1743’s input range to be optimized for a wide variety of applications.

The LTC1743 is perfect for demanding communications applications with AC performance that includes 72.5dB SNR and 85dB spurious free dynamic range. Ultralow jitter of 0.3psRMS allows undersampling of IF frequencies with excellent noise performance. DC specs include ±1LSB maximum INL and ±0.8LSB DNL over temperature.

The digital interface is compatible with 5V, 3V and 2V logic systems. The ENC and ENC inputs may be driven differentially from PECL, GTL and other low swing logic families or from single-ended TTL or CMOS. The low noise, high gain ENC and ENC inputs may also be driven by a sinusoidal signal without degrading performance. A separate output power supply can be operated from 0.5V to 5V, making it easy to connect directly to any low voltage DSPs or FIFOs.

The 48-pin TSSOP package with a flow-through pinout simplifies the board layout.

特点
  • Sample Rate: 50Msps
  • 72.5dB SNR and 85dB SFDR (3.2V Range)
  • 71dB SNR and 90dB SFDR (2V Range)
  • No Missing Codes
  • Single 5V Supply
  • Power Dissipation: 1000mW
  • Selectable Input Ranges: ±1V or ±1.6V
  • 150MHz Full Power Bandwidth S/H
  • Pin Compatible Family25Msps: LTC1746 (14-Bit), LTC1745 (12-Bit)50Msps: LTC1744 (14-Bit), LTC1743 (12-Bit)65Msps: LTC1742 (14-Bit), LTC1741 (12-Bit)80Msps: LTC1748 (14-Bit), LTC1747 (12-Bit)
  • 48-Pin TSSOP Package
典型应用
LTC1743 Typical Application
应用
  • Telecommunications
  • Receivers
  • Cellular Base Stations
  • Spectrum Analysis
  • Imaging Systems
封装信息
LTC1743 Package Drawing
Order Information 订购型号
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) *
LTC1743CFW#PBFTSSOP-48C$10.80$9.30
LTC1743CFW#TRPBFTSSOP-48C$9.40
LTC1743IFW#PBFTSSOP-48I$12.70$10.95
LTC1743IFW#TRPBFTSSOP-48I$11.05
演示电路板
器件型号描述价格
DC520B-KLTC1743CFW | 12-Bit / 50 Msps Low Noise ADC (requires DC718 controller)$100.00
Companion Boards
器件型号描述价格
DC718CUSB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps)$300.00
数据表
可靠性数据
产品选择卡
LT Journal
CAD 符号
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LTC1743 Footprints and Symbols