LTC2285

PRODUCTION

Dual 14-Bit, 125Msps Low Power 3V ADC

Data Sheet Product Selection Table
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Overview

  • Integrated Dual 14-Bit ADCs
  • Sample Rate: 125Msps
  • Single 3V Supply (2.85V to 3.4V)
  • Low Power: 790mW
  • 72.4dB SNR, 88dB SFDR
  • 110dB Channel Isolation at 100MHz
  • Flexible Input: 1VP-P to 2VP-P Range
  • 640MHz Full Power Bandwidth S/H
  • Clock Duty Cycle Stabilizer
  • Shutdown and Nap Modes
  • Data Ready Output Clock
  • Pin Compatible Family
    • 125Msps: LTC2283 (12-Bit), LTC2285 (14-Bit)
    • 105Msps: LTC2282 (12-Bit), LTC2284 (14-Bit)
    • 80Msps: LTC2294 (12-Bit), LTC2299 (14-Bit)
    • 65Msps: LTC2293 (12-Bit), LTC2298 (14-Bit)
    • 40Msps: LTC2292 (12-Bit), LTC2297 (14-Bit)
  • 64-Pin (9mm × 9mm) QFN Package

The LTC2285 is a 14-bit 125Msps, low power dual 3V A/D converter designed for digitizing high frequency, wide dynamic range signals. The LTC2285 is perfect for demanding imaging and communications applications with AC performance that includes 72.2dB SNR and 82dB SFDR for signals at the Nyquist frequency.

Typical DC specs include ±1.5LSB INL, ±0.6LSB DNL. The transition noise is a low 1.3LSBRMS.

A single 3V supply allows low power operation. A separate output supply allows the outputs to drive 0.5V to 3.6V logic.

A single-ended CLK input controls converter operation. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles. A data ready output clock (CLKOUT) can be used to latch the output data.

Applications

  • Wireless and Wired Broadband Communication
  • Imaging Systems
  • Spectral Analysis
  • Portable Instrumentation

LTC2285
Dual 14-Bit, 125Msps Low Power 3V ADC
SNR vs Input Frequency, –1dB, 2V Range 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

Evaluation Software 1

LinearLab Tools

A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards.

Hardware Ecosystem

Parts Product Life Cycle Description
ADC/DAC Combo Converters 1
LTM9002
NOT RECOMMENDED FOR NEW DESIGNS 14-Bit, 125Msps Dual-Channel IF/Baseband Receiver Subsystem
Differential Amplifiers 1
LTC6421-20
LAST TIME BUY Dual Matched 1.3GHz Differential Amplifiers/ADC Drivers
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
DC1098A-F

LTC2285IUP | Dual HSADC, VDD = +3V, 125Msps 14-Bit 70MHz < Ain < 140MHz, (requires DC890)

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Product Details

DC1098A-F: Demo Board for LTC2285 Dual 14-Bit, 125Msps Low Power 3V ADC


 


eval board
schematic 2
DC1098A-C

LTC2285IUP | Dual HSADC, VDD = +3V, 125Msps 14-Bit 1MHz < Ain < 70MHz, (requires DC890)

Buy Now View Details

Product Details

DC1098A-C: Demo Board for LTC2285 Dual 14-Bit, 125Msps Low Power 3V ADC
DC1098A-F
LTC2285IUP | Dual HSADC, VDD = +3V, 125Msps 14-Bit 70MHz < Ain < 140MHz, (requires DC890)
DC1098A-A - Schematic
DC1098A-C
LTC2285IUP | Dual HSADC, VDD = +3V, 125Msps 14-Bit 1MHz < Ain < 70MHz, (requires DC890)
DC1098A-A - Schematic

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