Features and Benefits
- Sample Rate: 50Msps
- 77dB SNR and 87dB SFDR (3.2V Range)
- 73.5dB SNR and 90dB SFDR (2V Range)
- No Missing Codes
- Single 5V Supply
- Power Dissipation: 1.2W
- Selectable Input Ranges: ±1V or ±1.6V
- 150MHz Full Power Bandwidth S/H
- Pin Compatible Family
- 25Msps: 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
The LTC1744 is a 50Msps, sampling 14-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 LTC1744’s input range to be optimized for a wide variety of applications.
The LTC1744 is perfect for demanding communications applications with AC performance that includes 77dB SNR and 87dB spurious free dynamic range. Ultralow jitter of 0.3psRMS allows undersampling of IF frequencies with excellent noise performance. DC specs include ±4LSB maximum INL and no missing codes 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 TSSOP package with a flow-through pinout simplifies the board layout.
- Base Stations
- Spectrum Analysis
- Imaging Systems
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Software & Systems Requirements
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.