具有内部基准的超小型、低功耗、16位模数转换器.pdf

ADS1115ADS111516-Bit ADCDSI C Interface2Voltage ReferenceOscillatorSCLSDAADDRADS1113AIN1AIN0 16-Bit ADCDSI C Interface2Voltage ReferenceOscillatorALERT/RDYSCLSDAADDRPGAComparatorADS1115 ADS1114MUXAIN1AIN2AIN0AIN3ADS1115 OnlyVDDGNDVDDGNDADS1113 ADS1114 ADSZHCS311B –MAY 2009–REVISED OCTOBER 2009 具有内部基准的超小型、低功耗、16位模数转换器查询样品: ADS1113, ADS1114, ADS11151特性说明23•超小型 QFN 封装：ADS1113、ADS1114 和 ADS1115 是具有 16 位分辨 2mm x 1.5mm x 0.4mm率的高精度模数转换器 (ADC)，采用超小型的无引线 •宽电源范围： 2.0V 至 5.5VQFN-10 封装或 MSOP-10 封装 ADS1113 / 4 / 5 在 •低电流消耗：设计时考虑到了精度、功耗和实现的简易性。

连续模式： 仅 150μAADS1113 / 4 / 5 具有一个板上基准和振荡器 数据通单触发模式： 自动关断过一个 I2C 兼容型串行接口进行传输；可以选择 4 个 •可编程数据速率：I2C 从地址 ADS1113 / 4 / 5 采用 2.0V 至 5.5V 的单8SPS 至 860SPS工作电源•内部低漂移电压基准 ADS1113 / 4 / 5 能够以高达每秒 860 个采样数据•内部振荡器 (SPS) 的速率执行转换操作 ADS1114 和 ADS1115•内部可编程增益放大器 (PGA) 具有一个板上可编程增益放大器 (PGA)，该 PGA 可提•I2C™ 接口： 引脚可选地址 供从电源电压到低至 ±256mV 的输入范围，因而使得•4 个单端或 2 个差分输入 (ADS1115) 能够以高分辨率来测量大信号和小信号 另•可编程比较器 外，ADS1115 还具有一个输入多路复用器 (MUX)，可（ADS1114 和 ADS1115） 提供 2 个差分输入或 4 个单端输入 应用ADS1113 / 4 / 5 可工作于连续转换模式或单触发模•便携式仪表式，后者在一个转换完成之后将自动断电，从而极大地•消费类商品降低了空闲状态下的电流消耗。

ADS1113 / 4 / 5 具•电池监测有－40℃ 至 ＋125℃ 的规定温度范围•温度测量 •工厂自动化及过程控制1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.2I2C is a trademark of NXP Semiconductors.3All other trademarks are the property of their respective owners.PRODUCTION DATA information is current as of publication date.版权 © 2009, Texas Instruments IncorporatedProducts conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does notEnglish Data Sheet: SBAS444B necessarily include testing of all parameters.ADS1113 ADS1114 ADS1115ZHCS311B –MAY 2009–REVISED OCTOBER 这些装置包含有限的内置ESD 保护。

存储或装卸时，应将导线一起截短或将装置放置于导电泡棉中，以防止 MOS 门极遭受静电损伤ORDERING INFORMATIONFor the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at .ABSOLUTE MAXIMUM RATINGS(1)ADS1113, ADS1114, ADS1115UNITVDD to GND–0.3 to +5.5VAnalog input current100, momentarymAAnalog input current10, continuousmAAnalog input voltage to GND–0.3 to VDD + 0.3VSDA, SCL, ADDR, ALERT/RDY voltage to GND–0.5 to +5.5VMaximum junction temperature+150°CStorage temperature range–60 to +150°C(1)Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to absolute maximum conditions for extended periods may affect device reliability.PRODUCT FAMILYPACKAGEINPUT CHANNELS DESIGNATORRESOLUTIONMAXIMUM SAMPLE(Differential/ DEVICEMSOP/QFN(Bits)RATE (SPS)COMPARATORPGASingle-Ended)ADS1113BROI/N6J16860NoNo1/1ADS1114BRNI/N5J16860YesYes1/1ADS1115BOGI/N4J16860YesYes2/4ADS1013BRMI/N9J123300NoNo1/1ADS1014BRQI/N8J123300YesYes1/1ADS1015BRPI/N7J123300YesYes2/42版权 © 2009, Texas Instruments IncorporatedADS1113 ADS1114 ADSZHCS311B –MAY 2009–REVISED OCTOBER 2009ELECTRICAL CHARACTERISTICSAll specifications at –40°C to +125°C, VDD = 3.3V, and Full-Scale (FS) = ±2.048V, unless otherwise noted. Typical values are at +25°C.ADS1113, ADS1114, ADS1115PARAMETERTEST CONDITIONSMINTYPMAXUNITANALOG INPUTFull-scale input voltage(1)VIN= (AINP) – (AINN)±4.096/PGAVAnalog input voltageAINPor AINNto GNDGNDVDDVDifferential input impedanceSee 表 2FS = ±6.144V(1)10MΩFS = ±4.096V(1), ±2.048V6MΩCommon-mode input impedanceFS = ±1.024V3MΩFS = ±0.512V, ±0.256V100MΩSYSTEM PERFORMANCEResolutionNo missing codes16Bits8, 16, 32, 64, 128,Data rate (DR)SPS250, 475, 860Data rate variationAll data rates–1010%Output noiseSee Typical CharacteristicsIntegral nonlinearityDR = 8SPS, FS = ±2.048V, best fit(2)1LSBFS = ±2.048V, differential inputs±1±3LSBOffset errorFS = ±2.048V, single-ended inputs±3LSBOffset driftFS = ±2.048V0.005LSB/°COffset power-supply rejectionFS = ±2.048V1LSB/VGain error(3)FS = ±2.048V at 25°C0.010.15%FS = ±0.256V7ppm/°CGain drift(3)FS = ±2.048V540ppm/°CFS = ±6.144V(1)5ppm/°CGain power-supply rejection80ppm/VPGA gain match(3)Match between any two PGA gains0.020.1%Gain matchMatch between any two inputs0.050.1%Offset matchMatch between any two inputs3LSBAt dc and FS = ±0.256V105dBAt dc and FS = ±2.048V100dBCommon-mode rejectionAt dc and FS = ±6.144V(1)90dBfCM= 60Hz, DR = 8SPS105dBfCM= 50Hz, DR = 8SPS105dBDIGITAL INPUT/OUTPUTLogic levelVIH0.7VDD5.5VVILGND – 0.50.3VDDVVOLIOL= 3mAGND0.150.4VInput leakageIHVIH= 5.5V10μAILVIL= GND10μA(1)This parameter expresses the full-scale range of the ADC scaling. In no event should more than VDD + 0.3V be applied to this device. (2)99% of full-scale. (3)Includes all errors from onboard PGA and reference.版权 © 2009, Texas Instruments Incorporated312345109876ADDRALERT/RDY (ADS1114/5?Only)GNDAIN0AIN1SCLSDAVDDAIN3 (ADS1115?Only)AIN2 (ADS1115?Only)ADS1113 ADS1114 ADS1115DGS?PACKAGE MSOP-10 (TOP?VIEW)5101234ADDRALERT/RDY?(ADS1114/5?Only)GNDAIN0AIN1SCL9876SDAVDDAIN3 (ADS1。