Datasheet Texas Instruments ADS7945 — 数据表

制造商Texas Instruments
系列ADS7945
Datasheet Texas Instruments ADS7945

14位,2MSPS,双通道,单极性,差分,u功率SAR ADC

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

ADS7945SRTERADS7945SRTET
Lifecycle StatusActive (Recommended for new designs)Active (Recommended for new designs)
Manufacture's Sample AvailabilityNoYes

打包

ADS7945SRTERADS7945SRTET
N12
Pin1616
Package TypeRTERTE
Industry STD TermWQFNWQFN
JEDEC CodeS-PQFP-NS-PQFP-N
Package QTY3000250
CarrierLARGE T&RSMALL T&R
Device Marking79457945
Width (mm)33
Length (mm)33
Thickness (mm).75.75
Pitch (mm).5.5
Max Height (mm).8.8
Mechanical Data下载下载

参数化

Parameters / ModelsADS7945SRTER
ADS7945SRTER
ADS7945SRTET
ADS7945SRTET
# Input Channels22
Analog Voltage AVDD(Max), V5.255.25
Analog Voltage AVDD(Min), V2.72.7
ArchitectureSARSAR
Digital Supply(Max), V5.255.25
Digital Supply(Min), V1.651.65
INL(Max), +/-LSB1.51.5
Input Range(Max), V5.255.25
Input TypeDifferentialDifferential
Integrated FeaturesN/AN/A
InterfaceSPISPI
Multi-Channel ConfigurationMultiplexedMultiplexed
Operating Temperature Range, C-40 to 125-40 to 125
Package GroupWQFNWQFN
Package Size: mm2:W x L, PKG16WQFN: 9 mm2: 3 x 3(WQFN)16WQFN: 9 mm2: 3 x 3(WQFN)
Power Consumption(Typ), mW10.510.5
RatingCatalogCatalog
Reference ModeExtExt
Resolution, Bits1414
SINAD, dB83.583.5
SNR, dB8484
Sample Rate (max), SPS2MSPS2MSPS
Sample Rate(Max), MSPS22
THD(Typ), dB-92-92

生态计划

ADS7945SRTERADS7945SRTET
RoHSCompliantCompliant

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: ADS7945 (2)

制造商分类

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