LTC2122
PRODUCTIONDual14-Bit 170Msps ADC with JESD204B Serial Outputs
- Part Models
- 4
- 1ku List Price
- Starting From $69.66
Overview
- 6.0Gbps JESD204B Interface
- Only One Output Lane Required for Both ADCs (FS ≤ 150Msps)
- 70dBFS SNR
- 90dBFS SFDR
- Low Power: 751mW Total
- Single 1.8V Supply
- Easy to Drive 1.5VP-P Input Range
- 1.25GHz Full Power Bandwidth S/H
- Optional Clock Divide by Two
- Optional Clock Duty Cycle Stabilizer
- Low Power Sleep and Nap Modes
- Serial SPI Port for Configuration
- 48-Lead (7mm × 7mm) QFN Package
The LTC2122 is a 2-channel simultaneous sampling 170Msps 14-bit A/D converter with serial JESD204B outputs. It is designed for digitizing high frequency, wide dynamic range signals. It is perfect for demanding communications applications with AC performance that includes 70dBFS SNR and 90dBFS spurious free dynamic range (SFDR). The 1.25GHz input bandwidth allows the ADC to under-sample high frequencies.
The JESD204B serial interface simplifies the PCB design by minimizing the number of data lines required. At 170Msps, only two 3.4Gbps output lanes are required. For sample rates up to 150Msps, both ADCs may share the same output lane at up to 6.0Gbps.
The DEVCLK+ and DEVCLK– inputs can be driven differentially with sine wave, PECL, or LVDS signals. An optional clock divide-by-two circuit or clock duty cycle stabilizer maintains high performance at full speed for a wide range of clock duty cycles.
Applications
- Communications
- Cellular Base Stations
- Software Defined Radios
- Medical Imaging
- High Definition Video
- Test and Measurement Instrumentation
Documentation
Data Sheet 1
Reliability Data 1
User Guide 2
Product Selector Card 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 |
|---|---|---|---|
| LTC2122CUK#PBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC2122CUK#TRPBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC2122IUK#PBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC2122IUK#TRPBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Evaluation Software 1
KC705 FPGA Source Code for DC1974
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Differential Amplifiers 1 | ||
| LTC6409 | RECOMMENDED FOR NEW DESIGNS | 10GHz GBW, 1.1nV/√Hz Differential Amplifier/ADC Driver |
| Digital to Analog Converters (DACs) 1 | ||
| LTC2000 | PRODUCTION | 16-/14-/11-Bit 2.5Gsps DACs |
| Low-Noise Amplifiers (LNAs) & Power Amplifiers 1 | ||
| LTC6430-15 | RECOMMENDED FOR NEW DESIGNS | High Linearity Differential RF/IF Amplifier/ADC 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 |
