LTC2220 - 12-Bit, 170Msps ADCs

Features

• Click Here for LTC2220 Evaluation Kits
• Sample Rate: 170Msps/135Msps
• 67.5dB SNR up to 140MHz Input
• 80dB SFDR up to 170MHz Input
• 775MHz Full Power Bandwidth S/H
• Single 3.3V Supply
• Low Power Dissipation: 890mW/660mW
• LVDS, CMOS, or Demultiplexed CMOS Outputs
• Selectable Input Ranges: ±0.5V or ±1V
• No Missing Codes
• Optional Clock Duty Cycle Stabilizer
• Shutdown and Nap Modes
• Data Ready Output Clock
• Pin Compatible Family
  185Msps: LTC2220-1 (12-Bit)
  170Msps: LTC2220 (12-Bit), LTC2230 (10-Bit)
  135Msps: LTC2221 (12-Bit), LTC2231 (10-Bit)
• 64-Pin 9mm × 9mm 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 LTC2220 and LTC2221 are 170Msps/135Msps, sampling 12-bit A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2220/LTC2221 are perfect for demanding communications applications with AC performance that includes 67.5dB SNR and 80dB spurious free dynamic range for signals up to 170MHz. Ultralow jitter of 0.15ps_RMS allows undersampling of IF frequencies with excellent noise performance.

DC specs include ±0.4LSB INL (typ), ±0.3LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 0.5LSB_RMS.

The digital outputs can be either differential LVDS, or single-ended CMOS. There are three format options for the CMOS outputs: a single bus running at the full data rate or two demultiplexed buses running at half data rate with either interleaved or simultaneous update. A separate output power supply allows the CMOS output swing to range from 0.5V to 3.6V.

The ENC⁺ and ENC^– inputs may be driven differentially or single ended 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.

Packaging

QFN-64

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
LTC2220CUP	QFN	64	C	$54.65	$39.50	View
LTC2220CUP#PBF	QFN	64	C	$54.65	$39.50	View
LTC2220CUP#TR	QFN	64	C		$39.60	View
LTC2220CUP#TRPBF	QFN	64	C		$39.60	View
LTC2220CUP-1	QFN	64	C	$67.75	$49.00	View
LTC2220CUP-1#PBF	QFN	64	C	$67.75	$49.00	View
LTC2220CUP-1#TR	QFN	64	C		$49.10	View
LTC2220CUP-1#TRPBF	QFN	64	C		$49.10	View
LTC2220IUP	QFN	64	I	$65.57	$47.40	View
LTC2220IUP#PBF	QFN	64	I	$65.57	$47.40	View
LTC2220IUP#TR	QFN	64	I		$47.50	View
LTC2220IUP#TRPBF	QFN	64	I		$47.50	View
LTC2220IUP-1	QFN	64	I	$81.58	$59.00	View
LTC2220IUP-1#PBF	QFN	64	I	$81.58	$59.00	View
LTC2220IUP-1#TR	QFN	64	I		$59.10	View
LTC2220IUP-1#TRPBF	QFN	64	I		$59.10	View
LTM2220IV-AA#PBF	LGA	100	I	$54.65	$39.50	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
DC750A-A	LTC2220CUP | High Speed ADC, VCC = +3.3V, 170Msps, 12-Bit 1MHz < AIN < 100MHz (Requires DC890 and LVDS_TRANSFORMER)	$200.00
DC750A-E	LTC2220CUP | High Speed ADC, VCC = +3.3V, 170Msps, 12-Bit AIN > 100MHz (Requires DC890 and LVDS_TRANSFORMER)	$200.00
DC890B	High Speed USB Data Collection Board	$300.00
DC890_LVDS_XFMR	LVDS Power Transformer, goes with DC890B/ ADC LVDS demoboards	$0.00
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Applications

• Wireless and Wired Broadband Communication
• Cable Head-End Systems
• Power Amplifier Linearization
• Communications Test Equipment

Simulate

Linear Technology offers free software and demo boards that greatly simplify the task of testing and evaluating our data converters. To use these powerful tools with the LTC2220:

1. Download the PScope (QuickEval II) System software. The PScope System is a USB-based product demonstration and data acquisition system for use with Linear Technologys high performance analog to digital converters. The software also includes web links to the appropriate device data sheets and provides an automatic update feature to keep the software current with the latest set of device drivers.
   
   
2. Request the DC890 FastDAACS USB Controller either online or from your local sales representative. The DC890 interfaces with the USB port of your computer and connects to the LTC2220 daughter cards. 
   
   
3. Request the evaluation kit for the LTC2220 (DC750A), either online or from your local sales representative. This daughter card along with the QuickEval software package, allows easy evaluation of the part from your PC.