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DS4303R/T

更新时间： 2024-11-23 06:54:43
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
8页 421K
描述
Voltage Sample and Infinite Hold

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DS4303R/T 数据手册

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Rev 0; 3/05  
Voltage Sample and Infinite Hold  
General Description  
Features  
The DS4303 is a nonvolatile (NV) sample and infinite-  
hold adjustable voltage reference. The reference volt-  
age is programmed in-circuit during factory calibration/  
programming. Programming the reference voltage,  
♦ Precise Electronically Adjustable Voltage  
Reference  
♦ Enables Automated Factory Trimming of Devices  
Needing Voltage Adjustment  
V
V
, is as simple as applying the desired voltage on  
OUT  
and toggling the adjust pin (ADJ) to lock the V  
IN  
OUT  
♦ Can be Adjusted to Within 1mV  
voltage level indefinitely, even if the device is power  
cycled. The DS4303 replaces current cumbersome fac-  
tory adjustment arrangements with a low-cost solution  
that can be adjusted using automated techniques. In  
addition, the DS4303 has the ability to be readjusted  
after the unit has been fully assembled and tested. This  
results in a much more flexible manufacturing arrange-  
ment, lower inventory costs, and a quicker time-to-market.  
♦ Wide Adjustable Output Voltage Range Within  
300mV of the Supply Rails  
♦ Low Temperature Coefficient  
♦
1mA of Output-Current Drive  
♦ NV Memory Stores the Voltage Indefinitely  
♦ Output Short-Circuit Protection  
♦ Low Cost  
Applications  
♦ Low Power Consumption  
Power-Supply Calibration  
Threshold Setting  
Offset Nulling  
♦ 2.4V to 3.6V Single-Supply Operation  
♦ Small 5-Lead SOT23 Package  
Bias Adjusting  
Power Amps  
Ordering Information  
Pressure Bridges  
Factory-Calibrated Equipment  
PIN-  
SOT  
PART  
TEMP RANGE  
PACKAGE  
MARK  
DS4303R/T&R  
DS4303R+T&R  
-40°C to +85°C  
-40°C to +85°C  
SOT23-5  
SOT23-5  
4303  
4303+  
+Denotes lead-free package.  
Typical Operating Circuit  
Pin Configuration  
TOP VIEW  
EXISTING SOLUTION  
DS4303 SOLUTION  
V
CC  
ADJ  
1
2
3
5
4
V
CC  
REFERENCE  
VOLTAGE  
DS4303  
V
CC  
REFERENCE  
VOLTAGE  
DS4303  
V
OUT  
GND  
SHUNT  
VOLTAGE  
REFERENCE  
GND  
V
ADJ  
IN  
HAND SELECTED  
0.1% RESISTOR  
OR MECHANICAL POT  
V
IN  
V
OUT  
ACCESS FOR  
AUTOMATED  
ALIGNMENT  
SOT23  
______________________________________________ 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.  
12345678

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