Features and Benefits
- 2-Channel Simultaneously Sampling ADC
- 70.6dB SNR
- 89dB SFDR
- Low Power: 183mW/144mW/109mW Total 92mW/72mW/55mW per Channel
- Single 1.8V Supply
- CMOS, DDR CMOS, or DDR LVDS Outputs
- Selectable Input Ranges: 1VP-P to 2VP-P
- 750MHz Full Power Bandwidth S/H
- Optional Data Output Randomizer
- Optional Clock Duty Cycle Stabilizer
- Shutdown and Nap Modes
- Serial SPI Port for Configuration
- 64-Pin (9mm × 9mm) QFN Package
The LTC2145-12/LTC2144-12/LTC2143-12 are 2-channel simultaneous sampling 12-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 70.6dB SNR and 89dB spurious free dynamic range (SFDR). Ultralow jitter of 0.08psRMS allows undersampling of IF frequencies with excellent noise performance.
DC specs include ±0.3LSB INL (typ), ±0.1LSB DNL (typ) and no missing codes over temperature. The transition noise is 0.3LSBRMS.
The digital outputs can be either full rate CMOS, double data rate CMOS, or double data rate LVDS. A separate output power supply allows the CMOS output swing to range from 1.2V to 1.8V.
The ENC+ and ENC– inputs may be driven differentially or single-ended with a sine wave, PECL, LVDS, TTL, or CMOS inputs. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.
- Cellular Base Stations
- Software Defined Radios
- Portable Medical Imaging
- Multi-Channel Data Acquisition
- Nondestructive Testing
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 (1)
DC1620A-M: Demo Board for LTC2145-12 12-Bit, 125Msps Low Power Dual ADCs.
Documentation & Resources
R538 Reliability Data3/26/201868 K
DC1620A - Demo Manual8/28/2012459K
High Speed ADC Portfolio8/30/20173M
16-/14-/12-Bit 125Msps Dual ADC Family11/12/20121M
Software & Systems Requirements
Tools & Simulations
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 Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|LTC2145CUP-12#PBF||Material Declaration||Reliability Data||64-Lead QFN (9mm x 9mm x 0.75mm w/ EP)|
|LTC2145CUP-12#TRPBF||Material Declaration||Reliability Data||64-Lead QFN (9mm x 9mm x 0.75mm w/ EP)|
|LTC2145IUP-12#PBF||Material Declaration||Reliability Data||64-Lead QFN (9mm x 9mm x 0.75mm w/ EP)|
|LTC2145IUP-12#TRPBF||Material Declaration||Reliability Data||64-Lead QFN (9mm x 9mm x 0.75mm w/ EP)|
|Wafer Fabrication Data||R538 Reliability Data|
Support & Discussions
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.