Alternative Parts
Overview
Features and Benefits
- Sample Rate: 80Msps
- 76.3dB SNR and 90dB SFDR (3.2V Range)
- 72.6dB SNR and 90dB SFDR (2V Range)
- No Missing Codes
- Single 5V Supply
- Power Dissipation: 1.4W
- Selectable Input Ranges: ±1V or ±1.6V
- 240MHz 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
Product Details
The LTC1748 is an 80Msps, 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 LTC1748’s input range to be optimized for a wide variety of applications.
The LTC1748 is perfect for demanding communications applications with AC performance that includes 76.3dB SNR and 90dB spurious free dynamic range. Ultralow jitter of 0.15psRMS allows undersampling of IF frequencies with excellent noise performance. DC specs include ±3LSB INL and no missing codes.
The digital interface is compatible with 5V, 3V, 2V and LVDS 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.
Applications
- Telecommunications
- Receivers
- Cellular Base Stations
- Spectrum Analysis
- Imaging Systems
Product Categories
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.
Evaluation Kits (2)
Documentation
Data Sheets (1)
Reliability Data (1)
Evaluation Kit Manuals (1)
Software & Systems Requirements
Evaluation Software
LinearLab Tools
PScope
Reference Materials
Product Selector Card (1)
Design Resources
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.
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