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MAX6143

更新时间: 2024-01-10 10:44:43
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美信 - MAXIM 传感器温度传感器
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描述
High-Precision Voltage Reference with Temperature Sensor

MAX6143 数据手册

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19-3168; Rev 0; 1/04  
High-Precision Voltage Reference with  
Temperature Sensor  
General Description  
Features  
The MAX6143 is a low-noise, high-precision voltage ref-  
erence. The device features a proprietary temperature-  
coefficient curvature-correction circuit and  
laser-trimmed thin-film resistors that result in a very low  
3ppm/°C temperature coefficient and excellent ±0.06%  
initial accuracy. The MAX6143 provides a TEMP output  
where the output voltage is proportional to die tempera-  
ture, making the device suitable for a wide variety of  
temperature-sensing applications. The device also pro-  
vides a TRIM input, allowing fine trimming of the output  
voltage with a resistive-divider network. Low tempera-  
ture drift and low noise make the MAX6143 ideal for use  
with high-resolution A/D or D/A converters.  
Wide (V  
+ 2V) to +40V Supply Voltage Range  
OUT  
Excellent Temperature Stability: 3ppm/°C (max)  
Tight Initial Accuracy: 0.05% (max)  
Low Noise: 3.8µV  
(typ at 2.5V Output)  
P-P  
Sources up to 30mA Output Current  
Low Supply Current: 450µA (max at +25°C)  
Low 0.01µA Shutdown Current  
Linear Temperature Transducer Voltage Output  
+2.5V, +3.3V, +4.096V, +5.0V, or +10V Output  
Voltages  
Wide Operating Temperature Range: -40°C to  
The MAX6143 provides accurate preset +2.5V, +3.3V,  
+4.096V, +5.0V, and +10V reference voltages and  
accepts input voltages up to +40V. The device draws  
340µA of supply current and sources 30mA or sinks  
2mA of load current. The MAX6143 uses bandgap  
technology for low-noise performance and excellent  
accuracy. The MAX6143 does not require an output  
bypass capacitor for stability, and is stable with capaci-  
tive loads up to 100µF. Eliminating the output bypass  
capacitor saves valuable board area in space-critical  
applications.  
+125°C  
No External Capacitors Required for Stability  
Typical Operating Circuit  
( V  
+ 2V) TO 40V INPUT  
OUT  
IN  
REFERENCE  
OUTPUT  
SHDN  
TEMP  
OUT  
*
*
*
MAX6143  
The MAX6143 is available in an 8-pin SO package and  
operates over the automotive (-40°C to +125°C) tem-  
perature range.  
TRIM  
GND  
*OPTIONAL.  
Applications  
A/D Converters  
D/A Converters  
Digital Voltmeters  
Voltage Regulators  
Threshold Detectors  
Pin Configuration appears at end of data sheet.  
Ordering Information/Selector Guide  
PIN-  
PACKAGE  
OUTPUT  
VOLTAGE (V)  
TEMPERATURE COEFFICIENT  
INITIAL  
ACCURACY (%)  
PART  
TEMP RANGE  
-40°C to +125°C  
(ppm/°C) 40°C TO +125°C  
MAX6143AASA25  
MAX6143BASA25  
MAX6143AASA33  
MAX6143BASA33  
MAX6143AASA41  
MAX6143BASA41  
MAX6143AASA50  
MAX6143BASA50  
MAX6143AASA10*  
MAX6143BASA10*  
8 SO  
8 SO  
8 SO  
8 SO  
8 SO  
8 SO  
8 SO  
8 SO  
8 SO  
8 SO  
2.500  
2.500  
3.300  
3.300  
4.096  
4.096  
5.000  
5.000  
10.000  
10.000  
3
10  
3
0.06  
0.10  
0.06  
0.10  
0.06  
0.10  
0.06  
0.10  
0.05  
0.10  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
10  
3
10  
3
10  
3
10  
*Future product—contact factory for availability.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  

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