Dual 14-bit 250MSPS Analog-to-Digital Converter - ADS42LB49

ADS42LB49 (ACTIVE)

Dual 14-bit 250MSPS Analog-to-Digital Converter

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Description

The ADS42LB49 and ADS42LB69 are a family of high-linearity, dual-channel, 14- and 16-bit, 250-MSPS, analog-to-digital converters (ADCs) supporting DDR and QDR LVDS output interfaces. The buffered analog input provides uniform input impedance across a wide frequency range while minimizing sample-and-hold glitch energy. A sampling clock divider allows more flexibility for system clock architecture design. The ADS42LB49 and ADS42LB69 provide excellent spurious-free dynamic range (SFDR) over a large input frequency range with low-power consumption.

Features

  • Dual Channel
  • 14- and 16-Bit Resolution
  • Maximum Clock Rate: 250 MSPS
  • Analog Input Buffer with High Impedance Input
  • Flexible Input Clock Buffer with
    Divide-by-1, -2, and -4
  • 2-VPP and 2.5-VPP Differential Full-Scale Input (SPI-Programmable)
  • DDR or QDR LVDS Interface
  • 64-Pin QFN Package (9-mm x 9-mm)
  • Power Dissipation: 820 mW/ch
  • Aperture Jitter: 85 fS
  • Internal Dither
  • Channel Isolation: 100 dB
  • Performance at fIN = 170 MHz at 2 VPP, –1 dBFS
    • SNR: 73.2 dBFS
    • SFDR:
      • 87 dBc (HD2 and HD3)
      • 100 dBc (Non HD2 and HD3)
  • Performance at fIN = 170 MHz:
    2.5 VPP, –1 dBFS
    • SNR: 74.9 dBFS
    • SFDR:
      • 85 dBc (HD2 and HD3)
      • 97 dBc (Non HD2 and HD3)

View more

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$)
ADS42LB49 ADS42JB46 ADS42JB49 ADS42JB69 ADS42LB69
14     14     14     16     16    
250MSPS     160MSPS     250MSPS     250MSPS     250MSPS    
2     2     2     2     2    
74.9     75.2     75     75.9     75.8    
12     12.2     12.1     12.3     12.2    
90     96     95     95     90    
74.1     75.1     74.8     75.7     75.1    
1640     1360     1700     1700     1640    
900     900     900     900     900    
Pipeline     Pipeline     Pipeline     Pipeline     Pipeline    
0.15     0.4     0.15     0.6     0.6    
0.75     0.75     0.75     3     3    
1.7     1.7     1.7     1.7     1.7    
1.9     1.9     1.9     1.9     1.9    
3.15     3.15     3.15     3.15     3.15    
3.45     3.45     3.45     3.45     3.45    
Int     Int     Int     Int     Int    
2.5V (p-p)     2.5V (p-p)     2.5V (p-p)     2.5V (p-p)     2.5V (p-p)    
Parallel LVDS     JESD204B     JESD204B     JESD204B     Parallel LVDS    
Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
125.00 | 1ku     71.75 | 1ku     125.00 | 1ku     185.00 | 1ku     185.00 | 1ku    

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