14 bit 250MSPS Low Power ADC - ADS4149

ADS4149 (ACTIVE)

14 bit 250MSPS Low Power ADC

Description

The ADS412x/4x are a family of 12-bit/14-bit analog-to-digital converters (ADCs) with sampling rates up to 250MSPS. These devices use innovative design techniques to achieve high dynamic performance, while consuming extremely low power at 1.8V supply. The devices are well-suited for multi-carrier, wide bandwidth communications applications.

The ADS412x/4x have fine gain options that can be used to improve SFDR performance at lower full-scale input ranges, especially at high input frequencies. They include a dc offset correction loop that can be used to cancel the ADC offset. At lower sampling rates, the ADC automatically operates at scaled down power with no loss in performance.

The ADS412x/4x are available in a compact QFN-48 package and are specified over the industrial temperature range (–40°C to +85°C)

Features

  • Maximum Sample Rate: 250MSPS
  • Ultralow Power with 1.8V Single Supply:
    • 201mW Total Power at 160MSPS
    • 265mW Total Power at 250MSPS
  • High Dynamic Performance:
    • SNR: 70.6dBFS at 170MHz
    • SFDR: 84dBc at 170MHz
  • Dynamic Power Scaling with Sample Rate
  • Output Interface:
    • Double Data Rate (DDR) LVDS with Programmable Swing and Strength
      • Standard Swing: 350mV
      • Low Swing: 200mV
      • Default Strength: 100Ω Termination
      • 2x Strength: 50Ω Termination
    • 1.8V Parallel CMOS Interface Also Supported
  • Programmable Gain up to 6dB for SNR/SFDR Trade-Off
  • DC Offset Correction
  • Supports Low Input Clock Amplitude Down To 200mVPP
  • Package: QFN-48 (7mm × 7mm)

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

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Parametrics Compare all products in High Speed ADC (>10MSPS)

 
Resolution (Bits)
Sample Rate (max) (SPS)
# Input Channels
SNR (dB)
ENOB (Bits)
SFDR (dB)
SINAD (dB)
Power Consumption (Typ) (mW)
Analog Input BW (MHz)
Architecture
DNL (Max) (+/-LSB)
INL (Max) (+/-LSB)
Digital Supply (Min) (V)
Digital Supply (Max) (V)
Analog Voltage AV/DD (Min) (V)
Analog Voltage AV/DD (Max) (V)
Reference Mode
Input Range
Interface
Rating
Operating Temperature Range (C)
Approx. Price (US$)
ADS4149 ADS4122 ADS4125 ADS4126 ADS4129 ADS4142 ADS4145 ADS4146 ADS41B25 ADS41B29 ADS41B49
14     12     12     12     12     14     14     14     12     12     14    
250MSPS     65MSPS     125MSPS     160MSPS     250MSPS     65MSPS     125MSPS     160MSPS     125MSPS     250MSPS     250MSPS    
1     1     1     1     1     1     1     1     1     1     1    
72.9     70.9     70.9     70.5     70.4     72.3     72.2     73     68.8     69.2     71.7    
11.7     11.4     11.4     11.33     11.27     11.7     11.5     11.75     11.1     11.07     11.5    
80     88     88     83     80     88     88     83     89     89     89    
72.14     70.1     70.1     70     69.65     72.1     72     72.5     68.8     68.3     69.5    
265     95     136     200     265     95     136     200     310     350     350    
800     800     800     800     550     800     800     800     800     800     800    
Pipeline     Pipeline     Pipeline     Pipeline     Pipeline     Pipeline     Pipeline     Pipeline     Pipeline     Pipeline     Pipeline    
0.95     0.95     0.95     0.95     0.95     0.95     0.95     0.95          
5     3.5     3.5     3.5     5     4.5     4.5     4.5     3.5     3.5     5    
1.7     1.7     1.7     1.7     1.7     1.7     1.7     1.7     1.7     1.7     1.7    
1.9     1.9     1.9     1.9     1.9     1.9     1.9     1.9     1.9     1.9     1.9    
1.7     1.7     1.7     1.7     1.7     1.7     1.7     1.7     1.7     1.7     1.7    
1.9     1.9     1.9     1.9     1.9     1     1.9     1.9     1.9     1.9     1.9    
Int     Int     Int     Int     Int     Int     Int     Int     Int     Int     Int    
2V (p-p)     2V (p-p)     2V (p-p)     2V (p-p)     2V (p-p)     2V (p-p)     2V (p-p)     2V (p-p)     1.5V (p-p)     1.5V (p-p)     1.5V (p-p)    
Parallel CMOS
Parallel LVDS    
Parallel CMOS
Parallel LVDS    
Parallel CMOS
Parallel LVDS    
Parallel CMOS
Parallel LVDS    
Parallel CMOS
Parallel LVDS    
Parallel CMOS
Parallel LVDS    
Parallel CMOS
Parallel LVDS    
Parallel CMOS
Parallel LVDS    
Parallel CMOS
Parallel LVDS    
Parallel CMOS
Parallel LVDS    
Parallel CMOS
Parallel LVDS    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
69.65 | 1ku     9.65 | 1ku     22.55 | 1ku     20.35 | 1ku     35.25 | 1ku     18.65 | 1ku     36.90 | 1ku     38.40 | 1ku     27.80 | 1ku     38.25 | 1ku     72.65 | 1ku    

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