ADS7854 SAR ADC, Dual, 1 MSPS, 14 Bit, Simultaneous Sampling | TI.com

ADS7854 (ACTIVE) SAR ADC, Dual, 1 MSPS, 14 Bit, Simultaneous Sampling

 

Description

The ADS8354, ADS7854, and ADS7254 belong to a family of pin-compatible, dual, high-speed, simultaneous-sampling, analog-to-digital converters (ADCs) that support fully-differential analog inputs.

Each device includes two individually programmable reference sources that can be used for system-level gain calibration. Also, a flexible serial interface that can operate over a wide power-supply range enables easy communication with a large variety of host controllers. Power consumption for a given throughput can be optimized by using the two low-power modes supported by the device. All devices are fully specified over the extended industrial temperature range (–40°C to 125°C) and are available in pin-compatible, WQFN-16 (3-mm × 3-mm) and TSSOP-16 packages.

Features

  • 16-, 14-, and 12-Bit, Pin-Compatible Family
  • Simultaneous Sampling of Two Channels
  • Supports Fully-Differential Inputs
  • High Speed:
    • ADS8354: 16 Bits, 700 kSPS
    • ADS7854: 14 Bits, 1 MSPS
    • ADS7254: 12 Bits, 1 MSPS
  • Excellent DC Performance:
    • ADS8354:
      • 16-Bit NMC DNL, ±2.5-LSB Max INL
    • ADS7854:
      • 14-Bit NMC DNL, ±1.5-LSB Max INL
    • ADS7254:
      • 12-Bit NMC DNL, ±1-LSB Max INL
  • Excellent AC Performance:
    • ADS8354:
      • 93-dB SNR, –100-dB THD
    • ADS7854:
      • 88-dB SNR, –95-dB THD
    • ADS7254:
      • 72-dB SNR, –90-dB THD
  • Dual, Programmable, and Buffered
    2.5-V Internal Reference
  • Fully-Specified Over the Extended Industrial Temperature Range: –40°C to 125°C
  • Small Footprint:
    WQFN-16 (3-mm × 3-mm) and TSSOP-16

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
ADS7854 Order now 14     1000     2     SPI     -40 to 125     TSSOP | 16
WQFN | 16    
6.50 | 1ku     45     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)
16WQFN: 9 mm2: 3 x 3 (WQFN | 16)    
SAR     Differential     Simultaneous Sampling     Ext
Int    
Small Size     5.5     0     4.5     5.5     1.65     5.5     1.5     85     -98     Catalog    
ADS7251 Order now 12     2000     2     SPI     -40 to 125     WQFN | 16     4.50 | 1ku     55     16WQFN: 9 mm2: 3 x 3 (WQFN | 16)     SAR     Differential     Simultaneous Sampling     Int     Small Size     5.25     0     4.75     5.25     1.65     5.25     1     73     -90     Catalog    
ADS7254 Order now 12     1000     2     SPI     -40 to 125     TSSOP | 16
WQFN | 16    
4.00 | 1ku     45     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)
16WQFN: 9 mm2: 3 x 3 (WQFN | 16)    
SAR     Differential     Simultaneous Sampling     Ext
Int    
Small Size     5.5     0     4.5     5.5     1.65     5.5     1     74     -92     Catalog    
ADS7851 Order now 14     1500     2     SPI     -40 to 125