LTC2281 - Dual 10-Bit, 125Msps Low Power 3V ADC

Typical DC specs include ±0.1LSB INL, ±0.1LSB DNL. The transition noise is a low 0.08LSBRMS.

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.

Features
  • Integrated Dual 10-Bit ADCs
  • Sample Rate: 125Msps
  • Single 3V Supply (2.85V to 3.4V)
  • Low Power: 790mW
  • 61.6dB SNR, 85dB 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), LTC2281 (10-Bit) 105Msps: LTC2282 (12-Bit), LTC2280 (10-Bit) 80Msps: LTC2294 (12-Bit), LTC2289 (10-Bit) 65Msps: LTC2293 (12-Bit), LTC2288 (10-Bit) 40Msps: LTC2292 (12-Bit), LTC2287 (10-Bit)
  • 64-Pin (9mm × 9mm) QFN Package
Typical Application

Applications
  • Wireless and Wired Broadband Communication
  • Imaging Systems
  • Spectral Analysis
  • Portable Instrumentation
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC2281CUP#PBF9x9 QFN-64C$25.71$18.00
LTC2281CUP#TRPBF9x9 QFN-64C$18.10
LTC2281IUP#PBF9x9 QFN-64I$30.86$21.60
LTC2281IUP#TRPBF9x9 QFN-64I$21.70
Demo Boards
Part NumberDescriptionPrice
DC1098A-ALTC2281IUP | Dual HSADC, VDD = +3V, 125Msps 10-Bit 1MHz < Ain < 70MHz, (req. DC890)$200.00
DC1098A-DLTC2281IUP | Dual HSADC, VDD = +3V, 125Msps 10-Bit 70MHz < Ain < 140MHz, (req. DC890)$200.00
Companion Boards
Part NumberDescriptionPrice
DC890BUSB Data Acquisition Controller, for PScope Evaluation Kits (up to 250Mbps, CMOS/LVDS)$300.00
Datasheet
Reliability Data
Product Selector Card
Software and Simulation
Related Product
LTC2281 - Dual 10-Bit, 125Msps Low Power 3V ADC
R478 - Reliability Data
14-Bit/12-Bit 125Msps Quad/Dual ADC Family
High Speed Amplifiers/ADC Drivers
LTC2285 - IBIS Model (2281/83/85)
LTC2281 Footprints and Symbols