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ADS7945SRTER PDF预览

ADS7945SRTER

更新时间： 2024-11-25 08:20:03
品牌 Logo 应用领域
德州仪器 - TI 转换器模数转换器
页数 文件大小 规格书
49页 1327K
描述
14-Bit, 2 MSPS, Dual-Channel, Differential/Single-Ended, Ultralow-Power Analog-to-Digital Converters

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ADS7945SRTER 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：QFN
包装说明：HVQCCN, LCC16,.12SQ,20针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：1.72
Is Samacsys：N最大模拟输入电压：2.5 V
最小模拟输入电压：-2.5 V最长转换时间：0.4 µs
转换器类型：ADC, SUCCESSIVE APPROXIMATIONJESD-30 代码：S-PQCC-N16
JESD-609代码：e4长度：3 mm
最大线性误差 (EL)：0.0092%湿度敏感等级：2
模拟输入通道数量：2位数：14
功能数量：1端子数量：16
最高工作温度：125 °C最低工作温度：-40 °C
输出位码：BINARY输出格式：SERIAL
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
封装等效代码：LCC16,.12SQ,20封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
电源：1.8/5,3/5 V认证状态：Not Qualified
采样速率：2 MHz采样并保持/跟踪并保持：SAMPLE
座面最大高度：0.8 mm子类别：Analog to Digital Converters
最大压摆率：5 mA最小供电电压：1.65 V
标称供电电压：5 V表面贴装：YES
技术：CMOS温度等级：AUTOMOTIVE
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3 mm
Base Number Matches：1

ADS7945SRTER 数据手册

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ADS7945  
ADS7946  
www.ti.com  
SBAS539B –JUNE 2011–REVISED SEPTEMBER 2011  
14-Bit, 2 MSPS, Dual-Channel, Differential/Single-Ended,  
Ultralow-Power Analog-to-Digital Converters  
Check for Samples: ADS7945, ADS7946  
1
FEATURES  
DESCRIPTION  
The ADS7945/6 are 14-bit, 2 MSPS analog-to-digital  
23  
•
Sample Rate: 2 MSPS  
converters (ADCs), with differential and single-ended  
inputs, respectively. The devices operate at a 2  
MSPS sample rate with a standard 16-clock data  
frame. The devices feature both outstanding dc  
precision and excellent dynamic performance; the  
ADS7946 is pin-compatible with the 8/10/12-bit  
•
14-Bit, Pin-Compatible with 8/10/12-bit  
ADS7947/8/9 Family (ADS7946)  
•
•
Outstanding Performance:  
–
–
–
SNR: 84 dB (ADS7945)  
No Missing Codes  
ADS7947/8/9 devices. The devices include  
a
INL: 1.5 LSB (max) (ADS7945)  
two-channel input multiplexer and low-power  
a
successive approximation register (SAR) ADC with  
an inherent sample-and-hold (S/H) input stage.  
Low Power:  
–
–
11.6 mW at 2 MSPS Operation  
Auto Power-Down at Lower Speeds:  
The ADS7945/6 support a wide analog supply range  
that allows the full-scale input range to extend to ±5 V  
differential or 5 V single-ended. A simple SPI™, with  
a digital supply that can operate as low as 1.65 V,  
allows for easy interfacing to a wide variety of digital  
controllers. Automatic power-down can be enabled  
when operating at slower speeds to dramatically  
reduce power consumption.  
–
–
–
7.2 mW at 500 kSPS  
1.4 mW at 100 kSPS  
0.3 mW at 20 kSPS  
•
Wide Supply Range:  
–
–
Analog: 2.7 V to 5.25 V  
Digital: 1.65 V to AVDD  
Offered in a tiny 3 mm × 3 mm QFN package, the  
ADS7945/6 are fully specified over the extended  
temperature range of –40°C to +125°C and are  
•
•
•
Simple Serial Interface (SPI)  
Fully Specified from –40°C to +125°C  
Tiny Footprint: 3 mm × 3 mm QFN  
suitable for  
a wide variety of data acquisition  
applications where high performance, low power, and  
small package size are key.  
APPLICATIONS  
•
•
•
•
Optical Networking  
Medical Instrumentation  
Battery-Powered Equipment  
Data Acquisition Systems  
AVDD  
REF  
REFGND  
DVDD  
AVDD  
REF  
REFGND  
DVDD  
ADS7945  
ADS7946  
PDEN  
PDEN  
AIN0P  
AIN0  
AIN0N  
AIN0GND  
CS  
CS  
SAR  
SAR  
MUX  
S/H  
SPI  
MUX  
S/H  
SPI  
SCLK  
SDO  
SCLK  
SDO  
ADC  
ADC  
AIN1N  
AIN1P  
AIN1GND  
AIN1  
CH SEL  
CH SEL  
GND  
GND  
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.  
2
3
SPI is a trademark of Motorola.  
All other trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2011, Texas Instruments Incorporated  
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ADS7945SRTER 替代型号

型号 品牌 替代类型 描述 数据表
ADS7945SRTET TI

完全替代

 14-Bit, 2 MSPS, Dual-Channel, Differential/Single-Ended, Ultralow-Power Analog-to-Digital

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