LTC2190

PRODUCTION

16-Bit, 25Msps Low Power Dual ADCs

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Overview

  • 2-Channel Simultaneous Sampling ADC
  • Serial LVDS Outputs: 1, 2 or 4 Bits per Channel
  • 77dB SNR
  • 90dB SFDR
  • Low Power: 198mW/146mW/104mW Total
  • 99mW/73mW/52mW per Channel
  • Single 1.8V Supply
  • Selectable Input Ranges: 1VP-P to 2VP-P
  • 550MHz Full-Power Bandwidth S/H
  • Shutdown and Nap Modes
  • Serial SPI Port for Configuration
  • 52-Pin (7mm × 8mm) QFN Package

The LTC2192/LTC2191/LTC2190 are 2-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 77dB 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 3.3LSBRMS.

To minimize the number of data lines the digital outputs are serial LVDS. Each channel outputs one bit, two bits or four bits at a time. The LVDS drivers have optional internal termination and adjustable output levels to ensure clean signal integrity.

The ENC+ and ENC– inputs may be driven differentially or single ended with a sine wave, PECL, LVDS, TTL or CMOS inputs. An internal 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
LTC2190
16-Bit, 25Msps Low Power Dual ADCs
2-Tone FFT, fIN = 70MHz and 69MHz 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
Differential Amplifiers 2
LTC6406
LAST TIME BUY 3GHz, Low Noise, Rail-to-Rail Input Differential Amplifier/Driver
LTC6409
RECOMMENDED FOR NEW DESIGNS 10GHz GBW, 1.1nV/√Hz Differential 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
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Tools & Simulations

IBIS Model 1

Evaluation Kits

eval board
schematic 1
DC1763A-F

LTC2190: 16-bit 25Msps ADC, Serial LVDS Outputs, 5-170MHz, Requires DC1371 and DC1075

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Product Details

DC1763A-F: Demo Board for the LTC2190 16-Bit, 25Msps Low Power Dual ADCs.


 
DC1763A-F
LTC2190: 16-bit 25Msps ADC, Serial LVDS Outputs, 5-170MHz, Requires DC1371 and DC1075
DC1763A-A - Schematic

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