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DS4305

更新时间： 2024-11-24 14:57:27
品牌 Logo 应用领域
亚德诺 - ADI /
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8页 300K
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可编程电压基准

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中文翻译

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DS4305 数据手册

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Rev 1; 8/06  
Electronically Programmable  
Voltage Reference  
General Description  
Features  
The DS4305 is a nonvolatile (NV) electronically pro-  
grammable voltage reference. The reference voltage 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 1.5mV  
voltage level indefinitely, even if the device is power  
cycled. The DS4305 replaces current cumbersome fac-  
tory adjustment arrangements with a low-cost solution  
that can be adjusted using automated techniques. In  
addition, the DS4305 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  
ꢀ Low Power Consumption  
Applications  
ꢀ 4.0V to 5.5V Single-Supply Operation  
ꢀ Small 5-Lead SOT23 Package  
ꢀ -40°C to +125°C Temperature Operation  
ꢀ DS4305K Evaluation Kit is Available  
Power-Supply Calibration  
Threshold Setting  
Offset Nulling  
Bias Adjusting  
Power Amps  
Pressure Bridges  
Factory-Calibrated Equipment  
Ordering Information  
PIN-  
SOT  
PART  
TEMP RANGE  
PACKAGE  
MARK  
DS4305R+T&R -40°C to +125°C  
+Denotes lead-free package.  
5 SOT23  
4305+  
Typical Operating Circuit  
Pin Configuration  
TOP VIEW  
EXISTING SOLUTION  
DS4305 SOLUTION  
V
CC  
ADJ  
1
2
3
5
4
V
CC  
REFERENCE  
VOLTAGE  
V
CC  
DS4305  
REFERENCE  
VOLTAGE  
GND  
V
OUT  
SHUNT  
VOLTAGE  
REFERENCE  
DS4305  
ADJ  
GND  
V
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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