LTC2268-14
PRODUCTION14-Bit, 125Msps Low Power Dual ADCs
- Part Models
- 4
- 1ku List Price
- Starting From $62.99
Part Details
- 2-Channel Simultaneous Sampling ADC
- 73.1dB SNR
- 88dB SFDR
- Low Power: 299mW/243mW/203mW Total
- 150mW/121mW/101mW Per Channel
- Single 1.8V Supply
- Serial LVDS Outputs: 1 or 2 Bits Per Channel
- Selectable Input Ranges: 1VP-P to 2VP-P
- 800MHz Full Power Bandwidth S/H
- Shutdown and Nap Modes
- Serial SPI Port for Configuration
- Pin Compatible 14-Bit and 12-Bit Versions
- 40-Pin (6mm × 6mm) QFN Package
The LTC2268-14/LTC2267-14/LTC2266-14 are 2-channel, simultaneous sampling 14-bit A/D converters designed for digitizing high frequency, wide dynamic range signals. They are perfect for demanding communications applications with AC performance that includes 73.1dB SNR and 88dB spurious free dynamic range (SFDR). Ultralow jitter of 0.15psRMS allows undersampling of IF frequencies with excellent noise performance.
DC specs include ±1LSB INL (typ), ±0.3LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 1.2LSBRMS.
The digital outputs are serial LVDS to minimize the number of data lines. Each channel outputs two bits at a time (2-lane mode). At lower sampling rates there is a one bit per channel option (1-lane mode). The LVDS drivers have optional internal termination and adjustable output levels to ensure clean signal integrity.
The ENC+ and ENC– inputs may be driven differentially or single-ended with a sine wave, PECL, LVDS, TTL, or CMOS inputs. An internal clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.
| Bits | |
| LTC2268-12 | 12 |
| LTC2268-14 | 14 |
Applications
- Communications
- Cellular Base Stations
- Software Defined Radios
- Portable Medical Imaging
- Multichannel Data Acquisition
- Nondestructive Testing
Documentation
Data Sheet 1
Reliability Data 1
User Guide 1
Technical Articles 1
Product Selector Card 2
Press Release 1
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 |
|---|---|---|---|
| LTC2268CUJ-14#PBF | 40-Lead QFN (6mm x 6mm x 0.75mm w/ EP) | ||
| LTC2268CUJ-14#TRPBF | 40-Lead QFN (6mm x 6mm x 0.75mm w/ EP) | ||
| LTC2268IUJ-14#PBF | 40-Lead QFN (6mm x 6mm x 0.75mm w/ EP) | ||
| LTC2268IUJ-14#TRPBF | 40-Lead QFN (6mm x 6mm x 0.75mm w/ EP) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Evaluation Software 1
LinearLab Tools
A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards.
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Fully Differential Amplifiers 2 | ||
| LTC6412 | LAST TIME BUY | 800MHz, 31dB Range Analog-Controlled VGA |
| LTC6404 | LAST TIME BUY | 600MHz, Low Noise, High Precision Fully Differential Input/Output Amplifier/Driver |
| Integer-N PLL 1 | ||
| LTC6946 | LAST TIME BUY | Ultralow Noise and Spurious 0.37GHz to 6.39GHz Integer-N Synthesizer with Integrated VCO |
Tools & Simulations
IBIS Model 1
Evaluation Kits
LTC2268-14 | 14-Bit, 125Msps, 1.8V Dual Serial ADC, 5MHz < AIN < 170MHz, Requires DC1371 and DC1075
Resources
Software
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