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14 位 400MSPS 模数转换器 (ADC)
Sample rate (Max) (MSPS) 400
Resolution (Bits) 14
Number of input channels 1
Interface type Parallel LVDS
Analog input BW (MHz) 1440
Features High Performance
Rating Catalog
Input range (Vp-p) 2.2
Power consumption (Typ) (mW) 2500
Architecture Pipeline
SNR (dB) 70.3
ENOB (Bits) 11.2
SFDR (dB) 95
Operating temperature range (C) -40 to 85
Input buffer Yes
  • 400-MSPS Sample Rate
  • 14-Bit Resolution, 11.2-Bits ENOB
  • 1.4-GHz Input Bandwidth
  • 80-dBc SFDR at 230 MHz and 400 MSPS
  • 69.8-dBFS SNR at 230 MHz and 400 MSPS
  • 2.2-VPP Differential Input Voltage
  • LVDS-Compatible Outputs
  • 2.5-W Total Power Dissipation
  • 50-mW Power-Down Mode
  • Offset Binary Output Format
  • Output Data Transitions on the Rising and Falling Edges of a Half-Rate Output Clock
  • On-Chip Analog Buffer, Track-and-Hold, and Reference Circuit
  • HTQFP-80 PowerPAD? Package
    (14-mm × 14-mm Footprint)
  • Industrial Temperature Range:
    –40°C to +85°C
  • Pin-Similar, -Compatible With 12-, 13-, and 14-Bit Family: ADS5463, ADS5440, ADS5444

The ADS5474 device is a 14-bit, 400-MSPS analog-to-digital converter (ADC) that operates from both a 5-V supply and 3.3-V supply while providing LVDS-compatible digital outputs. This ADC is one of a family of 12-, 13-, and 14-bit ADCs that operate from 210 MSPS to 500 MSPS. The ADS5474 device has an input buffer that isolates the internal switching of the onboard track and hold (T&H) from disturbing the signal source while providing a high-impedance input. An internal reference generator is also provided to simplify the system design.

Designed with a 1.4-GHz input bandwidth for the conversion of wide-bandwidth signals that exceed 400 MHz of input frequency at 400 MSPS, the ADS5474 device has outstanding low-noise performance and spurious-free dynamic range over a large input frequency range.

The ADS5474 device is available in an TQFP-80 PowerPAD package. The device is built on Texas Instruments complementary bipolar process (BiCom3) and is specified over the full industrial temperature range (–40°C to +85°C).