LTC2185
PRODUCTION16-Bit, 125Msps Low Power Dual ADCs
- Part Models
- 4
- 1ku List Price
- Starting From $131.04
Overview
- Two-Channel Simultaneously Sampling ADC
- 76.8dB SNR
- 90dB SFDR
- Low Power: 370mW/308mW/200mW Total 185mW/154mW/100mW per Channel
- Single 1.8V Supply
- CMOS, DDR CMOS, or DDR LVDS Outputs
- Selectable Input Ranges: 1VP-P to 2VP-P
- 550MHz 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 LTC2185/LTC2184/LTC2183 are two-channel simultaneous sampling 16-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 76.8dB SNR and 90dB spurious free dynamic range (SFDR). Ultralow jitter of 0.07psRMS allows undersampling of IF frequencies with excellent noise performance.
DC specs include ±2LSB INL (typ), ±0.5LSB DNL (typ) and no missing codes over temperature. The transition noise is 3.4LSBRMS.
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.
Applications
- Communications
- Cellular Base Stations
- Software Defined Radios
- Portable Medical Imaging
- Multi-Channel Data Acquisition
- Nondestructive Testing
Documentation
Data Sheet 1
Reliability Data 1
User Guide 2
Technical Articles 5
Product Selector Card 4
3rd Party Solutions 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 |
|---|---|---|---|
| LTC2185CUP#PBF | 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) | ||
| LTC2185CUP#TRPBF | 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) | ||
| LTC2185IUP#PBF | 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) | ||
| LTC2185IUP#TRPBF | 64-Lead QFN (9mm x 9mm 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 |
|---|---|---|
| Differential Amplifiers 2 | ||
| LTC6409 | RECOMMENDED FOR NEW DESIGNS | 10GHz GBW, 1.1nV/√Hz Differential Amplifier/ADC Driver |
| LTC6406 | LAST TIME BUY | 3GHz, Low Noise, Rail-to-Rail Input Differential Amplifier/Driver |
| Phase-Locked Loop (PLL) Synthesizers 1 | ||
| LTC6946 | LAST TIME BUY | Ultralow Noise and Spurious 0.37GHz to 6.39GHz Integer-N Synthesizer with Integrated VCO |
