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REF3425 PDF预览

REF3425

更新时间: 2023-06-19 15:17:11
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
31页 2420K
描述
2.5V 低温漂、低功耗小型串联电压基准

REF3425 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active包装说明:LSSOP,
Reach Compliance Code:compliantECCN代码:EAR99
Factory Lead Time:6 weeks风险等级:1.76
模拟集成电路 - 其他类型:THREE TERMINAL VOLTAGE REFERENCEJESD-30 代码:R-PDSO-G6
JESD-609代码:e4长度:2.9 mm
湿度敏感等级:2功能数量:1
输出次数:1端子数量:6
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:0.01 A最大输出电压:2.50125 V
最小输出电压:2.49875 V标称输出电压:2.5 V
封装主体材料:PLASTIC/EPOXY封装代码:LSSOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):250座面最大高度:1.2 mm
最大供电电压 (Vsup):12 V最小供电电压 (Vsup):3 V
表面贴装:YES技术:CMOS
最大电压温度系数:6 ppm/ °C温度等级:AUTOMOTIVE
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)端子形式:GULL WING
端子节距:0.95 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED微调/可调输出:NO
最大电压容差:0.05%宽度:1.6 mm
Base Number Matches:1

REF3425 数据手册

 浏览型号REF3425的Datasheet PDF文件第2页浏览型号REF3425的Datasheet PDF文件第3页浏览型号REF3425的Datasheet PDF文件第4页浏览型号REF3425的Datasheet PDF文件第5页浏览型号REF3425的Datasheet PDF文件第6页浏览型号REF3425的Datasheet PDF文件第7页 
REF3425, REF3430, REF3433, REF3440, REF3450  
SBAS804F – SEPTEMBER 2017 – REVISED JUNE 2021  
REF34xx Low-Drift, Low-Power, Small-Footprint Series Voltage Reference  
1 Features  
3 Description  
Initial accuracy: ±0.05% (maximum)  
Temperature coefficient : 6 ppm/°C (maximum)  
Operating temperature range: −40°C to +125°C  
Output current: ±10 mA  
Low quiescent current: 95 μA (maximum)  
Ultra-low zero load dropout voltage: 100 mV  
(maximum)  
The REF34xx device is a low temperature drift  
(6 ppm/°C), low-power, high-precision CMOS voltage  
reference, featuring ±0.05% initial accuracy, low  
operating current with power consumption less than  
95 μA. This device also offers very low output noise of  
3.8 μVp-p /V, which enables its ability to maintain high  
signal integrity with high-resolution data converters in  
noise critical systems. With a small SOT-23 package,  
REF34xx offers enhanced specifications and pin-to-  
pin replacement for MAX607x, ADR34xx and LT1790  
(REF34xxT, no EN pin). The REF34xx family is  
compatible to most of the ADC and DAC such as  
ADS1287, DAC8802 and ADS1112.  
Wide input voltage: 12 V  
Output 1/f noise (0.1 Hz to 10 Hz): 3.8 µVp-p/V  
Excellent long-term stability 25 ppm/1000 hrs  
Multiple small footprint 6 pin SOT-23 package  
pinouts: REF34xx and REF34xxT  
2 Applications  
Stability and system reliability are further improved  
by the low output-voltage hysteresis of the device  
and low long-term output voltage drift. Furthermore,  
the small size and low operating current of the  
devices (95 μA) benefit portable and battery-powered  
applications.  
Data acquisition systems  
Analog I/O modules  
Field transmitters  
Lab & field instrumentation  
Servo drive control modules  
DC power supply, AC source, electronic load  
REF34xx is specified for the wide temperature range  
of −40°C to +125°C.  
Voltage Reference Recommendation for Data  
Converters  
Device Information  
ADC  
DAC RESOLUTION  
PART NAME  
PACKAGE (1)  
BODY SIZE (NOM)  
VOLTAGE REFERENCE RESOLUTION  
(1)  
(1)  
REF34xx  
REF34xxT  
SOT-23 (6)  
2.90 mm × 1.60 mm  
TL431LI, TLV431  
LM4040, LM4050, REF30  
REF31, REF33, REF4132  
REF34, REF50  
10-b  
12-b  
8-b  
10-b  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet  
14-b to 16-b  
16-b to 18-b  
18-b+  
12-b  
14-b to 16-b  
16-b+  
REF70  
(1) For specific ADC/DAC recommendations, see SNAA320  
10  
10 ꢀ  
0.4  
25°C  
125°C  
-40°C  
0.36  
124 ꢀ  
-
0.32  
ADS1287  
REF  
Input Signal  
1 nF  
+
0.28  
0.24  
0.2  
VIN  
REF34xx  
CIN  
1µF  
COUT  
10 µF  
0.16  
0.12  
0.08  
0.04  
0
Copyright © 2017, Texas Instruments Incorporated  
Simplified Schematic  
0
5
Load Current (mA)  
10  
Dropout vs. Current Load Over Temperature  
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
 

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