13-Bit, 250-MSPS Analog-to-Digital Converter (ADC)- Class V - ADS5444-SP

ADS5444-SP (ACTIVE)

13-Bit, 250-MSPS Analog-to-Digital Converter (ADC)- Class V

 

Description

The ADS5444 is a 13 bit 250 MSPS analog-to-digital converter (ADC) that operates from a 5 V supply, while providing LVDS-compatible digital outputs from a 3.3 V supply. The ADS5444 input buffer isolates the internal switching of the onboard track and hold (T&H) from disturbing the signal source. An internal reference generator is also provided to further simplify the system design. The ADS5444 has outstanding low noise and linearity over input frequency.

The ADS5444 is available in a 84 pin ceramic nonconductive tie-bar package (HFG). The ADS5444 is built on a state-of-the-art Texas Instruments complementary bipolar process (BiCom3X) and is specified over the full military temperature range (–55°C to 125°C Tcase).

This CQFP package has built in vias that electrically and thermally connect the bottom of the die to a pad on the bottom of the package. To efficiently remove heat and provide a low-impedance ground path, a thermal land is required on the surface of the PCB directly underneath the body of the package. During normal surface mount flow solder operations, the heat pad on the underside of the package is soldered to this thermal land creating an efficient thermal path. Normally, the PCB thermal land has a number of thermal vias within it that provide a thermal path to internal copper areas (or to the opposite side of the PCB) that provide for more efficient heat removal. TI typically recommends an 11,9-mm2 board-mount thermal pad. This allows maximum area for thermal dissipation, while keeping leads away from the pad area to prevent solder bridging. A sufficient quantity of thermal/electrical vias must be included to keep the device within recommended operating conditions. This pad must be electrically at ground potential.

Features

  • 13 Bit Resolution
  • 250 MSPS Sample Rate
  • SNR = 67.6 dBc at 230 MHz IF and 250 MSPS
  • SFDR = 74.0 dBc at 230 MHz IF and 250 MSPS
  • 2.2 VPP Differential Input Voltage
  • Fully Buffered Analog Inputs
  • 5 V Analog Supply Voltage
  • LVDS Compatible Outputs
  • Total Power Dissipation: 2 W
  • Offset Binary Output Format
  • Pin Compatible With the ADS5440
  • Military Temperature Range
    (–55°C to 125°C Tcase)

View more

Parametrics Compare all products in Analog to Digital Converters

 
Resolution (Bits)
Sample Rate (max) (SPS)
# Input Channels
INL (Max) (+/-LSB)
SNR (dB)
SFDR (dB)
Power Consumption (Typ) (mW)
Interface
Architecture
Analog Voltage AVDD (Min) (V)
Analog Voltage AVDD (Max) (V)
ENOB (Bits)
Digital Supply (Min) (V)
Digital Supply (Max) (V)
Operating Temperature Range (C)
Rating
Package Group
Package Size: mm2:W x L (PKG)
Reference Mode
ADS5444-SP ADS5400-SP ADS5424-SP ADS5474-SP
13    12    14    14   
250MSPS    1GSPS    105MSPS    400MSPS   
1    1    1    1   
2.8    4.5    6.9    7   
65.5    58.5    72.4    68.7   
60.5    72    81.6    76.3   
2000    2200    1900    2500   
Parallel LVDS    Parallel LVDS    Parallel CMOS    Parallel LVDS   
Pipeline    Pipeline    Pipeline    Pipeline   
4.75    3.135    4.75    3.1   
5.25    3.465    5.25    3.6   
11.3    9.2    11.5    10.9   
3    3.135    3    3   
3.6    3.465    3.6    3.6   
-55 to 125
25 Only   
-55 to 125
25 Only   
-55 to 125
25 Only   
-55 to 125   
Space    Space    Space    Space   
CFP    CFP    CFP    CFP   
See datasheet (CFP)    See datasheet (CFP)    See datasheet (CFP)    See datasheet (CFP)   
Ext
Int   
Ext
Int   
Int    Ext
Int   

Other qualified versions of ADS5444-SP

Version Part Number Definition
Catalog ADS5444 TI's standard catalog product
Enhanced Product ADS5444-EP Supports Defense, Aerospace and Medical Applications

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