LTC2156-14

PRODUCTION

Dual 14-Bit 210Msps ADCs

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Overview

  • 70dB SNR
  • 90dB SFDR
  • Low Power: 650mW/616mW/567mW Total
  • Single 1.8V Supply
  • DDR LVDS Outputs
  • Easy-to-Drive 1.5VP-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 Versions
  • 64-Pin (9mm × 9mm) QFN Package

The LTC2157-14/LTC2156-14/LTC2155-14 are 2-channel simultaneous sampling 250Msps/210Msps/170Msps 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 70dB SNR and 90dB spurious free dynamic range (SFDR). The latency is only five clock cycles.

DC specs include ±0.85LSB INL (typ), ±0.25LSB DNL (typ) and no missing codes over temperature. The transition noise is 1.82LSBRMS.

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.

Bits
LTC2156-12 12
LTC2156-14 14

Applications

  • Communications
  • Cellular Basestations
  • Software Defined Radios
  • Medical Imaging
  • High Definition Video
  • Testing and Measurement Instruments
LTC2156-14
Dual 14-Bit 210Msps ADCs
LTC2157-14 32K Point FFT, fIN = 15MHz, –1dBFS, 250Msps Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Analog to Digital Converters (ADCs) 1
LTM9013
LAST TIME BUY 300MHz Wideband Receiver
Differential Amplifiers 2
LTC6409
RECOMMENDED FOR NEW DESIGNS 10GHz GBW, 1.1nV/√Hz Differential Amplifier/ADC Driver
LTC6412
LAST TIME BUY 800MHz, 31dB Range Analog-Controlled VGA
Phase-Locked Loop (PLL) Synthesizers 1
LTC6950
Obsolete 1.4GHz Low Phase Noise, Low Jitter PLL with Clock Distribution
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Tools & Simulations

Software and Simulation 2

IBIS Model 1

Evaluation Kits

eval board
schematic 1
DC1564A-B

LTC2156-14: 14-bit, 210Msps, 1.8V Dual ADC, DDR LVDS Outputs, 5-140MHz, requires DC1371

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Product Details

DC1564A-B: Demo Board for the LTC2156-14 Dual 14-Bit 210Msps ADCs.


 
DC1564A-B
LTC2156-14: 14-bit, 210Msps, 1.8V Dual ADC, DDR LVDS Outputs, 5-140MHz, requires DC1371
DC1564A-A - Schematic

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