Data Conversion Analog-to-Digital Converters (ADC) High Speed ADCs

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LTC2152-14 - Single 14-Bit 250Msps ADCs

LTC2242-12 - 12-Bit, 250Msps ADC

Features

  • Sample Rate: 250Msps
  • 65.4dB SNR
  • 78dB SFDR
  • 1.2GHz Full Power Bandwidth S/H
  • Single 2.5V Supply
  • Low Power Dissipation: 740mW
  • 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
    250Msps: LTC2242-12 (12-Bit), LTC2242-10 (10-Bit)
    210Msps: LTC2241-12 (12-Bit), LTC2241-10 (10-Bit)
    170Msps: LTC2240-12 (12-Bit), LTC2240-10 (10-Bit)
    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

LTC2242-12 Typical Application
LTC2242-12 Typical Application

Description

The LTC2242-12 is a 250Msps, sampling 12-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. The LTC2242-12 is perfect for demanding communications applications with AC performance that includes 65.4dB SNR and 78dB SFDR. Ultralow jitter of 95fsRMS allows IF undersampling with excellent noise performance.

DC specs include ±1.0LSB INL (typ), ±0.4LSB DNL (typ) and no missing codes over temperature.

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 2.625V.

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 over a wide range of clock duty cycles.

Packaging

For complete and up to date package information and drawings, please refer to our packaging page

QFN-64

LTC2242-12 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC2242CUP-10 QFN 64 C $57.11 $39.00 View
LTC2242CUP-10#PBF QFN 64 C $57.11 $39.00 View
LTC2242CUP-10#TR QFN 64 C $39.10 View
LTC2242CUP-10#TRPBF QFN 64 C $39.10 View
LTC2242CUP-12 QFN 64 C $86.39 $59.00 View
LTC2242CUP-12#PBF QFN 64 C $86.39 $59.00 View
LTC2242CUP-12#TR QFN 64 C $59.10 View
LTC2242CUP-12#TRPBF QFN 64 C $59.10 View
LTC2242IUP-10 QFN 64 I $68.54 $46.80 View
LTC2242IUP-10#PBF QFN 64 I $68.54 $46.80 View
LTC2242IUP-10#TR QFN 64 I $46.90 View
LTC2242IUP-10#TRPBF QFN 64 I $46.90 View
LTC2242IUP-12 QFN 64 I $103.68 $70.80 View
LTC2242IUP-12#PBF QFN 64 I $103.68 $70.80 View
LTC2242IUP-12#TR QFN 64 I $70.90 View
LTC2242IUP-12#TRPBF QFN 64 I $70.90 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.

Demo Boards

Linear Technology demo boards are offered free of charge to qualified customers. Contact your local sales office or distributor to request 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
DC1133A-A LTC2242CUP-12 | CMOS OUT, VCC = 2.5V, 250Msps, 12-Bit, 10MHz< AIN < 250MHz, need DC890 $200.00
DC997B-A LTC2242CUP-12 | LVDS OUT, VCC = 2.5V, 250Msps, 12-Bit, 10MHz< AIN < 250MHz, (req. DC890 & LVDS_XFMR) $200.00
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Companion Boards

Part Number Description Price Documentation
DC890B High Speed (up to 250Mbps, CMOS/LVDS) USB Data Collection Board $300.00
DC890_LVDS_XFMR LVDS Power Transformer, goes with DC890B/ LVDS output demoboards Contact Factory
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Click here to view our complete list of demo boards

Applications

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

Simulate

LTspice IV is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. To download LTspice IV and other FREE simulation tools, please visit our Design Simulation page.

Technical Support