LTC2155-14 - Dual 14-Bit 170Msps ADCs
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Overview

Features

  • 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

Typical Application

LTC2155-14 Typical Application
LTC2155-14 Typical Application

Description

The LTC®2157-14/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
LTC2155-12 12
LTC2155-14 14
Packaging

9x9 QFN-64

LTC2155-14 Package Drawing
Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price
(1-99)		 Price
(1k)*
LTC2155CUP-12#PBF QFN 64 C $54.91 $38.43
LTC2155CUP-12#TRPBF QFN 64 C $38.49
LTC2155CUP-14#PBF QFN 64 C $103.48 $72.43
LTC2155CUP-14#TRPBF QFN 64 C $72.49
LTC2155IUP-12#PBF QFN 64 I $63.14 $44.20
LTC2155IUP-12#TRPBF QFN 64 I $44.26
LTC2155IUP-14#PBF QFN 64 I $119.00 $83.30
LTC2155IUP-14#TRPBF QFN 64 I $83.36
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about 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-C LTC2155-14: 14-bit, 170Msps, 1.8V Dual ADC, DDR LVDS Outputs, 5-140MHz, req DC1371 $200.00

Companion Boards

Part Number Description Price Documentation
DC1371B FMC High-Speed Data Acquisition Board $1,950.00