ADS7056 14-Bit 2.5MSPS Ultra-Low-Power Ultra-Small-Size SAR ADC With SPI Interface | TI.com

ADS7056 (ACTIVE)

14-Bit 2.5MSPS Ultra-Low-Power Ultra-Small-Size SAR ADC With SPI Interface

 

Description

The ADS7056 is a 14-bit, 2.5-MSPS, analog-to-digital converter (ADC). The device includes a capacitor-based, successive-approximation register (SAR) ADC that supports a wide analog input voltage range (0 V to AVDD, for AVDD in the range of 2.35 V to 3.6 V).

The SPI-compatible serial interface is controlled by the CS and SCLK signals. The input signal is sampled with the CS falling edge and SCLK is used for conversion and serial data output. The device supports a wide digital supply range (1.65 V to 3.6 V), enabling direct interfacing to a variety of host controllers. The ADS7056 complies with the JESD8-7A standard for a normal DVDD range (1.65 V to 1.95 V).

The ADS7056 is available in an 8-pin, miniature, X2QFN package and is specified over the extended industrial temperature range (–40°C to +125°C). Miniature form-factor and extremely low-power consumption make this device suitable for space-constrained and battery-powered applications.

Features

  • 2.5-MSPS Throughput
  • Ultra-Small Size SAR ADC:
    • X2QFN-8 Package with 2.25-mm2 Footprint
  • Wide Operating Range:
    • AVDD: 2.35 V to 3.6 V
    • DVDD: 1.65 V to 3.6 V (Independent of AVDD)
    • Temperature Range: –40°C to +125°C
  • Unipolar Input Range: 0 V to AVDD
  • Excellent Performance:
    • 14-Bit NMC DNL, ±2-LSB INL
    • 74.5-dB SINAD at 2-kHz
    • 73.7-dB SINAD at 1-MHz
  • Ultra-Low Power Consumption:
    • 3.5 mW at 2.5-MSPS with 3.3-V AVDD
    • 158 µW at 100-kSPS with 3.3-V AVDD
  • Integrated Offset Calibration
  • SPI-Compatible Serial Interface: 60-MHz
  • JESD8-7A Compliant Digital I/O

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Parametrics

Compare all products in Precision ADCs (<=10MSPS) Email Download to Excel
Part number Order Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) INL (Max) (+/-LSB) SNR (dB) THD (Typ) (dB) Rating
ADS7056 Order now 14     2500     1     SPI     -40 to 125     X2QFN | 8     2.00 | 1ku     3.5     8X2QFN: 2 mm2: 1.5 x 1.5 (X2QFN | 8)     SAR     Single-Ended    
   
Supply     Small Size     3.6     0     2.35     3.6     1.65     3.6     3     74.9     -85     Catalog    
ADS7046 Order now 12     3000     1     SPI     -40 to 125     X2QFN | 8     1.50 | 1ku     3.8     8X2QFN: 2 mm2: 1.5 x 1.5 (X2QFN | 8)     SAR     Single-Ended    
   
Supply     Small Size     3.6     0     2.35     3.6     1.65     3.6     1     71.2     -86     Catalog    
ADS7047 Order now 12     3000     1     SPI     -40 to 125     X2QFN | 8     1.50 | 1ku     4     8X2QFN: 2 mm2: 1.5 x 1.5 (X2QFN | 8)     SAR     Differential    
   
Supply     Small Size     3.6     -3.6     2.35     3.6     1.65     3.6     0.75     72.9     -90     Catalog    
ADS7057 Order now 14