LTC1746

PRODUCTION

Low Power,14-Bit, 25Msps ADC

Part Models: 4
1ku List Price: Starting From $18.15

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Overview

Sample Rate: 25Msps
77.5dB SNR and 91dB SFDR (3.2V Range)
74dB SNR and 96dB SFDR (2V Range)
No Missing Codes
Single 5V Supply
Low Power Dissipation: 390mW
Selectable Input Ranges: ±1V or ±1.6V
240MHz Full Power Bandwidth S/H
Pin Compatible Family
- 25 Msps: LTC1746 (14-Bit), LTC1745 (12-Bit)
- 50 Msps: LTC1744 (14-Bit), LTC1743 (12-Bit)
- 65 Msps: LTC1742 (14-Bit), LTC1741 (12-Bit)
- 80 Msps: LTC1748 (14-Bit), LTC1747 (12-Bit)

The LTC1746 is a 25Msps, 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 LTC1746’s input range to be optimized for a wide variety of applications.

The LTC1746 is perfect for demanding communications applications with AC performance that includes 77.5dB SNR and 91dB spurious free dynamic range. Ultralow jitter of 0.3ps_RMS allows undersampling with excellent noise performance. DC specs include ±3LSB INL maximum 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 digital output power supply can be operated from 0.5V to 5V, making it easy to connect directly to low voltage DSPs or FIFOs.

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

Applications

Telecommunications
Medical Imaging
Receivers
Cellular Base Stations
Spectrum Analysis
Imaging Systems

Part Models: 4
1ku List Price: Starting From $18.15

Documentation

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. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC1746CFW#PBF	48-Lead TSSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1746CFW#TRPBF	48-Lead TSSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1746IFW#PBF	48-Lead TSSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1746IFW#TRPBF	48-Lead TSSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 14, 2019 - 19_0009 Assembly Site Transfer of Select 48L TSSOP Products from Amkor to ATEC Philippines
		PCN19_0009_Form Material_Report Qualification Results Summary
LTC1746CFW#PBF	PRODUCTION
LTC1746CFW#TRPBF	PRODUCTION
LTC1746IFW#PBF	PRODUCTION
LTC1746IFW#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Evaluation Software 2

PScope

The PScope System is a USB-based product demonstration and data acquisition system for use with high performance ADCs and signal chain receiver family. PScope allows users to evaluate the SNR, SFDR, THD, as well as other key parameters, quickly and easily.