Eight-Channel, 12-Bit, 40-MSPS Analog-to-Digital Converter (ADC) - ADS5270

ADS5270 (ACTIVE)

Eight-Channel, 12-Bit, 40-MSPS Analog-to-Digital Converter (ADC)

 

Description

The ADS5270 is a high-performance, 40MSPS, 8-channel analog-to-digital converter (ADC). Internal references are 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 theincoming 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 ADS5270 provides internal references, or can optionally be driven with external references. Best performance can be 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: 40MSPS
  • 12-Bit Resolution
  • No Missing Codes
  • Total Power Dissipation:
    Internal Reference: 888mW
    External Reference: 822mW
  • 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
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Parametrics Compare all products in High Speed ADCs (>10MSPS)

 
Resolution (Bits)
Sample Rate (Max) (MSPS)
# 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
SINAD (dB)
Architecture
DNL (Max) (+/-LSB)
INL (Max) (+/-LSB)
Reference Mode
ADS5270 ADS5271 ADS5272 ADS5273 ADS5277
12    12    12    12    10   
40    50    65    70    65   
8    8    8    8    8   
70.5    70.5    71.1    71.1    61.7   
11.3    11.3    11.5    11.5    9.7   
85    85    85    85    85   
907    957    983    1003    845   
2    2    2    2    2   
Parallel LVDS    Parallel LVDS    Parallel LVDS    Parallel LVDS    Parallel LVDS   
-40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
300    300    300    300    300   
No    No    No    No    No   
HTQFP    HTQFP    HTQFP    HTQFP    HTQFP   
80HTQFP: 196 mm2: 14 x 14(HTQFP)    80HTQFP: 196 mm2: 14 x 14(HTQFP)    80HTQFP: 196 mm2: 14 x 14(HTQFP)    80HTQFP: 196 mm2: 14 x 14(HTQFP)    80HTQFP: 196 mm2: 14 x 14(HTQFP)   
Catalog    Catalog    Catalog    Catalog    Catalog   
70    70    71    70.8    61.7   
Pipeline    Pipeline    Pipeline    Pipeline    Pipeline   
0.5    0.5    0.31    0.34    0.08   
0.6    0.6    0.41    0.43    0.09   
Ext
Int   
Ext
Int   
Ext
Int   
Ext
Int   
Ext
Int   

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