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ISL26102 PDF预览

ISL26102

更新时间: 2024-11-06 02:57:35
品牌 Logo 应用领域
瑞萨 - RENESAS 光电二极管转换器
页数 文件大小 规格书
21页 1221K
描述
Low-Noise 24-bit Delta Sigma ADC

ISL26102 技术参数

生命周期:Transferred包装说明:TSSOP,
Reach Compliance Code:compliantHTS代码:8542.39.00.01
风险等级:5.69Is Samacsys:N
最大模拟输入电压:5.15 V最小模拟输入电压:0.1 V
最长转换时间:4e-7 µs转换器类型:ADC, DELTA-SIGMA
JESD-30 代码:R-PDSO-G24长度:7.8 mm
最大线性误差 (EL):0.001%模拟输入通道数量:2
位数:24功能数量:1
端子数量:24最高工作温度:105 °C
最低工作温度:-40 °C输出位码:2'S COMPLEMENT BINARY
输出格式:SERIAL封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH采样速率:0.004 MHz
座面最大高度:1.2 mm标称供电电压:5 V
表面贴装:YES温度等级:INDUSTRIAL
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL宽度:4.4 mm
Base Number Matches:1

ISL26102 数据手册

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DATASHEET  
ISL26102, ISL26104  
Low-Noise 24-bit Delta Sigma ADC  
FN7608  
Rev 0.00  
October 12, 2012  
The ISL26102 and ISL26104 provide a low-noise  
Features  
• Programmable gain amplifier with gains of 1 to 128  
• Low noise: 7nV/Hz @ PGA = 128  
• Linearity error: 0.0002% FS  
programmable gain amplifier along with a 24-bit Delta-Sigma  
Analog-to-Digital Converter with two channel (ISL26102) or  
four channel (ISL26104) differential, multiplexed inputs. The  
devices feature exceptional noise performance for conversion  
rates ranging from 2.5Sps to 4kSps.  
• Output word rates up to 4kSps  
The on-chip low-noise programmable-gain amplifier provides  
gains ranging from 1 to 128, which supports ±19.5mVFS from  
a 5V reference. The high input impedance allows direct  
connection of sensors such as load cell bridges to ensure the  
specified measurement accuracy without additional circuitry.  
• Low-side switch for load cell power management  
• +5V analog and +2.7V to +5V digital supplies  
• ISL26102 in 24 Ld TSSOP  
• ISL26104 in 28 Ld TSSOP  
The Delta-Sigma ADC features a 3rd-order modulator providing  
up to 21.5 bit noise-free performance (10Sps), with  
user-selectable word rates. The converter can be operated  
from an external clock source, an external crystal (typically  
4.9152MHz), or the on-chip oscillator.  
• ESD 7.5kV - HBM  
Applications  
• Weigh scales  
The ISL26102 and ISL26104 offer a simple-to-use serial  
interface.  
• Temperature monitors and controls  
• Load safety systems  
• Industrial process control  
• Pressure sensors  
The ISL26102 and ISL26104 are available in a Thin Shrink  
Small Outline Package (TSSOP). The devices are specified for  
operation over the automotive temperature range (-40°C to  
+105°C).  
Related Literature  
AN1704, “Precision Signal Path Data Acquisition System”  
CAP  
AVDD  
DVDD  
DVDD  
ON-CHIP  
TEMP  
SENSOR  
XTALIN/  
CLOCK  
XTALOUT  
INTERNAL  
CLOCK  
EXTERNAL  
OSCILLATOR  
AIN1+  
AIN1-  
CS  
AIN2+  
SDO/RDY  
PGA  
1, 2, 4, 8,16,  
32, 64, 128  
AIN2-  
  
ADC  
INPUT  
MULTIPLEXER  
AIN3+  
AIN3-  
SDI  
ISL26104  
ONLY  
AIN4+  
AIN4-  
SCLK  
PWDN  
LSPS  
DGND DGND  
AGND  
CAP DGND DGND VREF+ VREF-  
FIGURE 1. BLOCK DIAGRAM  
FN7608 Rev 0.00  
October 12, 2012  
Page 1 of 21  

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