LTC2274 - 16-Bit, 105Msps Serial Output ADC

Features

• Click Here for LTC2274 Evaluation Kits
• High Speed Serial Interface (JESD204)
• Sample Rate: 105Msps
• 77.7dBFS Noise Floor
• 100dB SFDR
• SFDR >82dB at 250MHz (1.5V_P-P Input Range)
• PGA Front End (2.25V_P-P or 1.5V_P-P Input Range)
• 700MHz Full Power Bandwidth S/H
• Optional Internal Dither
• Single 3.3V Supply
• Power Dissipation: 1300mW
• Clock Duty Cycle Stabilizer
• Pin Compatible Family
     105Msps: LTC2274
     80Msps: LTC2273
     65Msps: LTC2272
• 40-Pin 6mm × 6mm QFN Package
• This Product is subject to United States Export Control and
  may require a license for export to certain countries.

Typical Application

Description

The LTC2274 is a 105Msps/80Msps, 16-bit A/D converter with a high speed serial interface. It is designed for digitizing high frequency, wide dynamic range signals with an input bandwidth of 700MHz. The input range of the ADC can be optimized using the PGA front end. The output data is serialized according to the JEDEC specification for Serial converters (JESD204).

The LTC2274 is perfect for demanding applications where it is desirable to isolate the sensitive analog circuits from the noisy digital logic. The AC performance includes a 77.7dB Noise Floor and 100dB spurious free dynamic range (SFDR). Ultra low jitter of 80fs RMS allows undersampling of high input frequencies with excellent noise performance. Maximum DC specs include ±4LSB INL, ±1LSB DNL (no missing codes) over temperature.

The encode clock inputs, ENC+ and ENC– may be driven differentially or single-ended with a sine wave, PECL, LVDS, TTL or CMOS inputs. A clock duty cycle stabilizer allows high performance at full speed with a wide range of clock duty cycles.

Packaging

QFN-40

Order Info

• Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
• Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
• Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number	Package	Pins	Temp	Price (1-99)	Price (1k)*	RoHS Data
LTC2274CUJ#PBF-ES	QFN	36	C	$97.14	$68.00	View
LTC2274IUJ#PBF-ES	QFN	36	I	$116.57	$81.60	View
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^* 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.

Evaluation Kits

Part Number	Description	Price
DC1151A-C	DC1151A-C - LTC2274 Evaluation Kit (Fin= 1-70MHz)	$200.00
DC1151A-D	DC1151A-D - LTC2274 Evaluation Kit (Fin= 70-140MHz)	$200.00
DC890B	High Speed USB Data Collection Board	$300.00
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Applications

• Telecommunications
• Receivers
• Cellular Base Stations
• Spectrum Analysis
• Imaging Systems
• ATE

Simulate

To simulate selected Linear Technology products, please download LTSpice / SwitcherCAD III. This powerful schematic capture and simulation tool includes macro models for 80% of Linear Technology's switching regulators, over 200 op amp models, as well as resistors, transistors and MOSFET models.

For other simulation tools, visit our Design Simulation and Device Models page.