LTC2257CUJ-14#PBF
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Analog Devices Inc. LTC2257CUJ-14#PBF

Manufacturer No:
LTC2257CUJ-14#PBF
Manufacturer:
Analog Devices Inc.
Package:
Tube
Description:
IC ADC 14BIT PIPELINED 40QFN
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The LTC2257CUJ-14#PBF is a 14-bit, 40Msps (mega-samples per second) pipelined analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for digitizing high-frequency, wide dynamic range signals, making it ideal for demanding communications and other high-performance applications. It features ultralow jitter, high signal-to-noise ratio (SNR), and spurious free dynamic range (SFDR), ensuring excellent noise performance and accuracy.

Key Specifications

Parameter Value
Resolution 14 bits
Sampling Rate 40 Msps
Signal-to-Noise Ratio (SNR) 74 dB
Spurious Free Dynamic Range (SFDR) 88 dB
Jitter 0.17 ps RMS
Power Consumption 81 mW / 49 mW / 35 mW
Supply Voltage Single 1.8 V
Output Types CMOS, DDR CMOS, DDR LVDS
Input Range 1 V P-P to 2 V P-P
Full-Power Bandwidth S/H 800 MHz
Package 40-Lead QFN (6mm x 6mm x 0.75mm)

Key Features

  • Ultralow jitter of 0.17 ps RMS for excellent noise performance in undersampling applications.
  • High AC performance with 74 dB SNR and 88 dB SFDR.
  • Low power consumption: 81 mW, 49 mW, and 35 mW.
  • Single 1.8 V supply voltage.
  • Selectable digital outputs: full rate CMOS, double data rate CMOS, or double data rate LVDS.
  • Optional data output randomizer and clock duty cycle stabilizer.
  • Shutdown and nap modes for power management.
  • Serial SPI port for configuration.
  • Pin compatible with 12-bit and 14-bit versions.

Applications

  • Communications systems.
  • Cellular base stations.
  • Software defined radios.
  • Portable medical imaging devices.
  • Multi-channel data acquisition systems.
  • Nondestructive testing equipment.

Q & A

  1. What is the resolution of the LTC2257CUJ-14#PBF ADC?

    The resolution of the LTC2257CUJ-14#PBF is 14 bits.

  2. What is the sampling rate of this ADC?

    The sampling rate is 40 Msps.

  3. What are the key AC performance metrics of this ADC?

    The key AC performance metrics include a 74 dB SNR and an 88 dB SFDR.

  4. What is the power consumption of this device?

    The power consumption is 81 mW, 49 mW, and 35 mW depending on the mode.

  5. What types of digital outputs are available?

    The digital outputs can be full rate CMOS, double data rate CMOS, or double data rate LVDS.

  6. Does this ADC support differential or single-ended inputs?

    Yes, the ENC+ and ENC- inputs may be driven differentially or single-ended with various input types such as sine wave, PECL, LVDS, TTL, or CMOS.

  7. What is the package type and dimensions of the LTC2257CUJ-14#PBF?

    The package is a 40-Lead QFN with dimensions of 6mm x 6mm x 0.75mm.

  8. Are there any optional features available for this ADC?

    Yes, optional features include a data output randomizer and a clock duty cycle stabilizer.

  9. What are some common applications for this ADC?

    Common applications include communications systems, cellular base stations, software defined radios, portable medical imaging, multi-channel data acquisition, and nondestructive testing.

  10. Is there a serial interface for configuration?

    Yes, the device includes a serial SPI port for configuration.

Product Attributes

Number of Bits:14
Sampling Rate (Per Second):40M
Number of Inputs:1
Input Type:Differential
Data Interface:LVDS - Parallel, Parallel
Configuration:S/H-ADC
Ratio - S/H:ADC:1:1
Number of A/D Converters:1
Architecture:Pipelined
Reference Type:External, Internal
Voltage - Supply, Analog:1.7V ~ 1.9V
Voltage - Supply, Digital:1.7V ~ 1.9V
Features:- 
Operating Temperature:0°C ~ 70°C
Package / Case:40-WFQFN Exposed Pad
Supplier Device Package:40-QFN (6x6)
Mounting Type:Surface Mount
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In Stock

$34.55
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Similar Products

Part Number LTC2257CUJ-14#PBF LTC2258CUJ-14#PBF LTC2257IUJ-14#PBF LTC2259CUJ-14#PBF LTC2256CUJ-14#PBF LTC2257CUJ-12#PBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active Active Active Active
Number of Bits 14 14 14 14 14 12
Sampling Rate (Per Second) 40M 65M 40M 80M 25M 40M
Number of Inputs 1 1 1 1 1 1
Input Type Differential Differential Differential Differential Differential Differential
Data Interface LVDS - Parallel, Parallel LVDS - Parallel, Parallel LVDS - Parallel, Parallel LVDS - Parallel, Parallel LVDS - Parallel, Parallel LVDS - Parallel, Parallel
Configuration S/H-ADC S/H-ADC S/H-ADC S/H-ADC S/H-ADC S/H-ADC
Ratio - S/H:ADC 1:1 1:1 1:1 1:1 1:1 1:1
Number of A/D Converters 1 1 1 1 1 1
Architecture Pipelined Pipelined Pipelined Pipelined Pipelined Pipelined
Reference Type External, Internal External, Internal External, Internal External, Internal External, Internal External, Internal
Voltage - Supply, Analog 1.7V ~ 1.9V 1.7V ~ 1.9V 1.7V ~ 1.9V 1.7V ~ 1.9V 1.7V ~ 1.9V 1.7V ~ 1.9V
Voltage - Supply, Digital 1.7V ~ 1.9V 1.7V ~ 1.9V 1.7V ~ 1.9V 1.7V ~ 1.9V 1.7V ~ 1.9V 1.7V ~ 1.9V
Features - - - - - -
Operating Temperature 0°C ~ 70°C 0°C ~ 70°C -40°C ~ 85°C 0°C ~ 70°C 0°C ~ 70°C 0°C ~ 70°C
Package / Case 40-WFQFN Exposed Pad 40-WFQFN Exposed Pad 40-WFQFN Exposed Pad 40-WFQFN Exposed Pad 40-WFQFN Exposed Pad 40-WFQFN Exposed Pad
Supplier Device Package 40-QFN (6x6) 40-QFN (6x6) 40-QFN (6x6) 40-QFN (6x6) 40-QFN (6x6) 40-QFN (6x6)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount

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