LTC2158-14 - Dual 14-Bit 310Msps ADC
Features
- 68.8dBFS SNR
- 88dB SFDR
- Low Power: 724mW Total
- Single 1.8V Supply
- DDR LVDS Outputs
- Easy-to-Drive 1.32VP-P Input Range
- 1.25GHz Full Power Bandwidth S/H
- Optional Clock Duty Cycle Stabilizer
- Low Power Sleep and Nap Modes
- Serial SPI Port for Configuration
- Pin-Compatible 12-Bit Version
- 64-Lead (9mm × 9mm) QFN Package
Typical Application
Description
The LTC®2158-14 is a 2-channel simultaneous sampling 310Msps 14-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. It is perfect for demanding communications applications with AC performance that includes 68.8dB SNR and 88dB spurious free dynamic range (SFDR). The 1.25GHz input bandwidth allows the ADC to undersample high frequencies with good performance. The latency is only five clock cycles.
DC specs include ±1.2LSB INL (typ), ±0.35LSB DNL (typ) and no missing codes over temperature. The transition noise is 2.11LSBRMS.
The digital outputs are double data rate (DDR) LVDS.
The ENC+ and ENC– inputs can be driven differentially 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.
Packaging
For complete and up to date package information and drawings, please refer to our packaging page
QFN-64
Order Info
- Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) | Price (1k)* | RoHS Data |
|---|---|---|---|---|---|---|
| LTC2158CUP-12#PBF | QFN | 64 | C | $116.15 | $81.30 | View |
| LTC2158CUP-12#TRPBF | QFN | 64 | C | $81.36 | View | |
| LTC2158CUP-14#PBF | QFN | 64 | C | $209.07 | $146.35 | View |
| LTC2158CUP-14#TRPBF | QFN | 64 | C | $146.41 | View | |
| LTC2158IUP-12#PBF | QFN | 64 | I | $133.57 | $93.50 | View |
| LTC2158IUP-12#TRPBF | QFN | 64 | I | $93.56 | View | |
| LTC2158IUP-14#PBF | QFN | 64 | I | $240.43 | $168.30 | View |
| LTC2158IUP-14#TRPBF | QFN | 64 | I | $168.36 | View | |
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology demo boards are offered free of charge to qualified customers. Contact your local sales office or distributor to request a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1564A-G | LTC2158-14: 14-bit, 310Msps, 1.8V Dual ADC, DDR LVDS Outputs, 5-140MHz, req DC1371 | $250.00 | |
| DC1564A-H | LTC2158-12: 12-bit, 310Msps, 1.8V Dual ADC, DDR LVDS Outputs, 5-140MHz, req DC1371 | $250.00 | |
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Companion Boards
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1371A | High Speed (>250Mbps) USB Data Collection Board | $950.00 | |
| Buy Now | |||
Applications
- Communications
- Cellular Basestations
- Software Defined Radios
- Medical Imaging
- High Definition Video
- Testing and Measurement Instruments
Simulate
LTspice IV is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. To download LTspice IV and other FREE simulation tools, please visit our Design Simulation page.
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.