ADC3244E Dual-channel 14-bit 125-MSPS analog-to-digital converter (ADC) with extended temperature range | TI.com

ADC3244E
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Dual-channel 14-bit 125-MSPS analog-to-digital converter (ADC) with extended temperature range

 

Description

The ADC3244E is a high-linearity, ultra-low power, dual-channel, 14-bit, 25-MSPS to 125-MSPS analog-to-digital converter (ADC). The device is designed specifically to support demanding, high input frequency signals with large dynamic range requirements. An input clock divider allows more flexibility for system clock architecture design, and the SYSREF input enables complete system synchronization.

The ADC3244E supports serial, low-voltage, differential signaling (LVDS) in order to reduce the number of interface lines, thus allowing for high system integration density. The serial LVDS interface is two-wire, where the data from each ADC are serialized and output over two LVDS pairs. An internal phase-locked loop (PLL) multiplies the incoming ADC sampling clock to derive the bit clock that is used to serialize the 14-bit output data from each channel. In addition to the serial data streams, the frame and bit clocks are also transmitted as LVDS outputs.

 

Features

  • Dual channel
  • 14-bit resolution
  • Single supply: 1.8 V
  • Serial LVDS interface (SLVDS)
  • Flexible input clock buffer with divide-by-1, -2, -4
  • SNR = 72.4 dBFS, SFDR = 87 dBc at
    fIN = 70 MHz
  • Ultra-low power consumption:
    • 116 mW/Ch at 125 MSPS
  • Channel isolation: 105 dB
  • Internal dither and chopper
  • Support for multichip synchronization
  • Pin-to-pin compatible with 12-bit version
  • Package: VQFN-48 (7 mm × 7 mm)
  • Extended temperature range: –50°C to +105°C

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Parametrics

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Part number Order 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
ADC3244E Order now 125     Low Power     14     2     73.3     11.8     94     232     2     Serial LVDS     -50 to 105     540     No     VQFN | 48     48VQFN: 49 mm2: 7 x 7 (VQFN | 48)     Catalog     Pipeline    
ADC3221 Order now 25     Low Power     12     2     71.2     11.5     96     120     2     Serial LVDS     -40 to 85     540     No     VQFN | 48     48VQFN: 49 mm2: 7 x 7 (VQFN | 48)     Catalog     Pipeline    
ADC3222 Order now 50     Low Power     12     2     71.1     11.5     95     148     2     Serial LVDS     -40 to 85     540     No     VQFN | 48     48VQFN: 49 mm2: 7 x 7 (VQFN | 48)     Catalog     Pipeline    
ADC3223 Order now 80     Low Power     12     2     70.9     11.5     95     183     2     Serial LVDS     -40 to 85     540     No     VQFN | 48     48VQFN: 49 mm2: 7 x 7 (VQFN | 48)     Catalog     Pipeline    
ADC3224 Order now 125     Low Power     12     2     70.8     11.4     95     232     2     Serial LVDS     -40 to 85     540     No     VQFN | 48     48VQFN: 49 mm2: 7 x 7 (VQFN | 48)