Datasheet Texas Instruments ADS7946SRTET — 数据表

制造商Texas Instruments
系列ADS7946
零件号ADS7946SRTET
Datasheet Texas Instruments ADS7946SRTET

14位,2MSPS,双通道,单极性,伪差分,u功率SAR ADC 16-WQFN -40至125

数据表

14-Bit, 2-MSPS, Dual-Channel, Differential/Single-Ended, Ultralow-Power ADCs datasheet
PDF, 1.3 Mb, 修订版: B, 档案已发布: Sep 15, 2011
从文件中提取

价格

状态

Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityNo

打包

Pin16
Package TypeRTE
Industry STD TermWQFN
JEDEC CodeS-PQFP-N
Package QTY250
CarrierSMALL T&R
Device Marking7946
Width (mm)3
Length (mm)3
Thickness (mm).75
Pitch (mm).5
Max Height (mm).8
Mechanical Data下载

参数化

# Input Channels2
Analog Voltage AVDD(Max)5.25 V
Analog Voltage AVDD(Min)2.7 V
ArchitectureSAR
Digital Supply(Max)5.25 V
Digital Supply(Min)1.65 V
INL(Max)2.5 +/-LSB
Input Range(Max)5.25 V
Input TypePseudo-Differential,Single-Ended
Integrated FeaturesN/A
InterfaceSPI
Multi-Channel ConfigurationMultiplexed
Operating Temperature Range-40 to 125 C
Package GroupWQFN
Package Size: mm2:W x L16WQFN: 9 mm2: 3 x 3(WQFN) PKG
Power Consumption(Typ)10.5 mW
RatingCatalog
Reference ModeExt
Resolution14 Bits
SINAD78.8 dB
SNR82 dB
Sample Rate (max)2MSPS SPS
Sample Rate(Max)2 MSPS
THD(Typ)-85 dB

生态计划

RoHSCompliant

应用须知

  • Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A)
    PDF, 227 Kb, 修订版: A, 档案已发布: Nov 10, 2010
    This application report analyzes a simple method for calculating minimum acquisition times for successive-approximation register analog-to-digital converters (SAR ADCs). The input structure of the ADC is examined along with the driving circuit. The voltage on the sampling capacitor is then determined for the case when a step function is applied to the input of the driving circuit. Three different
  • Determining Minimum Acquisition Times for SAR ADCs, part 2
    PDF, 215 Kb, 档案已发布: Mar 17, 2011
    The input structure circuit of a successive-approximation register analog-to-digital converter (SAR ADC) incombination with the driving circuit forms a transfer function that can be used to determine minimum acquisition times for different types of applied input signals. This application report, which builds on Determining Minimum Acquisition Times for SAR ADCs When a Step Function is Applied to
  • Analog-to-Digital Converter Grounding Practices Affect System Performance (Rev. A)
    PDF, 69 Kb, 修订版: A, 档案已发布: May 18, 2015
  • A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. B)
    PDF, 425 Kb, 修订版: B, 档案已发布: Oct 9, 2011
    This glossary is a collection of the definitions of Texas Instruments' Delta-Sigma (О”ОЈ), successive approximation register (SAR), and pipeline analog-to-digital (A/D) converter specifications and performance characteristics. Although there is a considerable amount of detail in this document, the product data sheet for a particular product specification is the best and final reference.
  • Principles of Data Acquisition and Conversion (Rev. A)
    PDF, 132 Kb, 修订版: A, 档案已发布: Apr 16, 2015

模型线

系列: ADS7946 (2)

制造商分类

  • Semiconductors > Data Converters > Analog-to-Digital Converters (ADCs) > Precision ADCs (<=10MSPS)