12-Bit 250MSPS Dual Low Power ADC - ADS4229

ADS4229 (ACTIVE)

12-Bit 250MSPS Dual Low Power ADC

Description

The ADS4229 is a member of the ADS42xx ultralow-power family of dual-channel, 12-bit and 14-bit analog-to-digital converters (ADCs). Innovative design techniques are used to achieve high dynamic performance, while consuming extremely low power with a 1.8-V supply. This topology makes the ADS4229 well-suited for multi-carrier, wide-bandwidth communications applications.

The ADS4229 has gain options that can be used to improve spurious-free dynamic range (SFDR) performance at lower full-scale input ranges. This device also includes a dc offset correction loop that can be used to cancel the ADC offset. Both double data rate (DDR) low-voltage differential signaling (LVDS) and parallel complementary metal oxide semiconductor (CMOS) digital output interfaces are available in a compact QFN-64 PowerPAD™ package.

The device includes internal references while the traditional reference pins and associated decoupling capacitors have been eliminated. The ADS4229 is specified over the industrial temperature range (–40°C to +85°C).

Features

  • Maximum Sample Rate: 250 MSPS
  • Ultralow Power with Single 1.8-V Supply:
    • 545-mW Total Power at 250 MSPS
  • High Dynamic Performance:
    • 80.8-dBc SFDR at 170 MHz
    • 69.4-dBFS SNR at 170 MHz
  • Crosstalk: > 90 dB at 185 MHz
  • Programmable Gain Up to 6 dB for
    SNR and SFDR Trade-off
  • DC Offset Correction
  • Output Interface Options:
    • 1.8-V Parallel CMOS Interface
    • DDR LVDS With Programmable Swing:
      • Standard Swing: 350 mV
      • Low Swing: 200 mV
  • Supports Low Input Clock Amplitude
    Down to 200 mVPP
  • Package: 9-mm × 9-mm, 64-Pin Quad Flat
    No-Lead (QFN) Package

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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$)
ADS4229 ADS4222 ADS4225 ADS4226 ADS4242 ADS4245 ADS4246 ADS4249
12     12     12     12     14     14     14     14    
250MSPS     65MSPS     125MSPS     160MSPS     65MSPS     125MSPS     160MSPS     250MSPS    
2     2     2     2     2     2     2     2    
70.5     70.9     70.8     70.5     73.6     73.4     72.8     72.8    
11.3     11.5     11.5     11.4     11.9     11.9     11.8     11.7    
80     91     89     87     92     89     87     80    
70     70.8     70.7     70.4     73.5     73.2     72.6     72    
470     183     277     332     183     277     332     470    
600     600     600     600     600     600     600     600    
Pipeline     Pipeline     Pipeline     Pipeline     Pipeline     Pipeline     Pipeline     Pipeline    
1.5     1.5     1.5     1.5     1.7     1.7     1.7     1.7    
3.5     3.5     3.5     3.5     5     5     5     5    
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    
1.7     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    
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)    
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    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
59.85 | 1ku     14.40 | 1ku     29.50 | 1ku     39.00 | 1ku     28.00 | 1ku     41.00 | 1ku     65.25 | 1ku     118.50 | 1ku    

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