ADS5271 Eight-Channel, 12-Bit, 50-MSPS Analog-to-Digital Converter (ADC) | TI.com

ADS5271 (ACTIVE) Eight-Channel, 12-Bit, 50-MSPS Analog-to-Digital Converter (ADC)

 

Description

The ADS5271 is a high-performance, 50MSPS, 8-channel analog-to-digital converter (ADC). Internal referencesare provided, simplifying system design requirements. Low power consumption allows for the highest of system integration densities. Serial LVDS (low-voltage differential signaling) outputs reduce the number of interface lines and package size.

An integrated phase lock loop (PLL) multiplies the incoming ADC sampling clock by a factor of 12. This high-frequency LVDS clock is used in the data serialization and transmission process. The word output of each internal ADC is serialized and transmitted either MSB or LSB first. In addition to the eight data outputs, a bit clock and a word clock are also transmitted. The bit clock is at 6x the speed of the sampling clock, whereas the word clock is at the same speed of the sampling clock.

The ADS5271 provides internal references, or can optionally be driven with external references. Best performance is achieved through the internal reference mode.

The device is available in a TQFP-80 PowerPAD package and is specified over a -40°C to +85°C operating range.

Features

  • Maximum Sample Rate: 50MSPS
  • 12-Bit Resolution
  • No Missing Codes
  • Total Power Dissipation:
    Internal Reference: 927mW
    External Reference: 861mW
  • CMOS Technology
  • Simultaneous Sample-and-Hold
  • 70.5dB SNR at 10MHz IF
  • 3.3V Digital/Analog Supply
  • Serialized LVDS Outputs
  • Integrated Frame and Bit Patterns
  • Option to Double LVDS Clock Output Currents
  • Four Current Modes for LVDS
  • Pin- and Format-Compatible Family
  • TQFP-80 PowerPAD Package
  • APPLICATIONS
    • Portable Ultrasound Systems
    • Tape Drives
    • Test Equipment
    • Optical Networking

PowerPAD Is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners

Parametrics

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Part number Order Sample rate (Max) (MSPS) Features Resolution (Bits) Number of input channels SNR (dB) ENOB (Bits) SFDR (dB) Power consumption (Typ) (mW) Input range (Vp-p) Interface Operating temperature range (C) Analog input BW (MHz) Input buffer Package Group Package size: mm2:W x L (PKG) Rating Architecture
ADS5271 Order now 50     Low Power     12     8     70.5     11.3     85     957     2     Parallel LVDS     -40 to 85     300     No     HTQFP | 80     80HTQFP: 196 mm2: 14 x 14 (HTQFP | 80)     Catalog     Pipeline    
ADS5270 Samples not available 40     Low Power     12     8     70.5     11.3     85     907     2     Parallel LVDS     -40 to 85     300     No     HTQFP | 80     80HTQFP: 196 mm2: 14 x 14 (HTQFP | 80)     Catalog     Pipeline    
ADS5272 Samples not available 65     Low Power     12     8     71.1     11.5     85     983     2     Parallel LVDS     -40 to 85     300     No     HTQFP | 80     80HTQFP: 196 mm2: 14 x 14 (HTQFP | 80)     Catalog     Pipeline    
ADS5273 Samples not available 70     High Performance     12     8     71.1     11.5     85     1003     2     Parallel LVDS     -40 to 85     300     No     HTQFP | 80     80HTQFP: 196 mm2: 14 x 14 (HTQFP | 80)     Catalog     Pipeline    
ADS5277 Samples not available 65     Low Power     10     8     61.7     9.7     85     845     2     Parallel LVDS     -40 to 85     300     No     HTQFP | 80     80HTQFP: 196 mm2: 14 x 14 (HTQFP | 80)     Catalog     Pipeline