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

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)

 
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
DNL (Typ) (+/-LSB)
INL (Typ) (+/-LSB)
Reference mode
ADS5270 ADS5271 ADS5272 ADS5273 ADS5277
40     50     65     70     65    
Low Power     Low Power     Low Power     High Performance     Low Power    
12     12     12     12     10    
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 | 80     HTQFP | 80     HTQFP | 80     HTQFP | 80     HTQFP | 80    
80HTQFP: 196 mm2: 14 x 14 (HTQFP | 80)     80HTQFP: 196 mm2: 14 x 14 (HTQFP | 80)     80HTQFP: 196 mm2: 14 x 14 (HTQFP | 80)     80HTQFP: 196 mm2: 14 x 14 (HTQFP | 80)     80HTQFP: 196 mm2: 14 x 14 (HTQFP | 80)    
Catalog     Catalog     Catalog     Catalog     Catalog    
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