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參數(shù)資料
| 型號(hào)： | DS4303 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Voltage Sample and Infinite Hold |
| 中文描述： | 可編程電壓基準(zhǔn) |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 421K |
| 代理商： | DS4303 |
D
Voltage Sample and Infinite Hold
6
_____________________________________________________________________
Detailed Description
The DS4303 provides a precise, NV output voltage,
V
OUT
, making it an ideal solution for factory calibration
of embedded systems. The DS4303 output voltage can
be adjusted over almost the entire operating supply
range of the device, and it can be precisely set to with-
in ±1mV. A graphical description of the DS4303 is pro-
vided in the block diagram.
During factory calibration, a simple adjustment proce-
dure must be followed. This entire procedure includes
setting V
IN
, toggling
ADJ
, waiting as V
OUT
self-adjusts,
and waiting for the completion of the EEPROM storage
cycle (See the timing diagram in Figure 1). At the start
of calibration, a voltage must be placed on V
IN
. This
voltage needs to be completely stable before the
adjustment procedure begins, and it must remain sta-
ble throughout the entire adjustment procedure. The
DS4303 will start its self-adjust procedure when the
ADJ
pin is pulled low and held low for at least t
ADJ
,
after which it can be released at any time. Once
ADJ
has been released, it should not be toggled again for
the remainder of the adjustment procedure. After the
falling edge on
ADJ
and the wait time, t
ADJ
, the V
OUT
self-adjust period begins. The length of the V
OUT
self-
adjust period can be determined using the formula
V x t
ST
, where
V is | V
OUT OLD
- V
OUT NEW
|.
ADJ
GND
V
OUT
V
CC
V
CC
V
IN
V
CC
R
PD
R
PU
V
REF
ADC
AND
CONTROL
EEPROM
12-BIT
DAC
DS4303
Figure 1. Timing Diagram
PIN
1
2
3
4
5
NAME
ADJ
GND
V
IN
V
OUT
V
CC
FUNCTION
Adjust Control Input
Ground
Sample Voltage Input
Voltage Output
Power-Supply Voltage
Pin Description
Block Diagram
V
OUT
V
IN
ADJ
t
W
t
W
FIRST PROGRAMMING CYCLE
ADDITIONAL PROGRAMMING CYCLES (IF REQUIRED)
t
ADJ
t
ADJ
t
ADJ
V
OUT
x t
ST
V
OUT
x t
ST
V
OUT
V
OUT
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS4303K | 功能描述:電源管理IC開發(fā)工具 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| DS4303R/R | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Voltage Sample and Infinite Hold |
| DS4303R/T | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Voltage Sample and Infinite Hold |
| DS4303R/T&R | 制造商:Maxim Integrated Products 功能描述:NV ADJ VOLTAGE REFERENCE SOT23-5 - Tape and Reel |
| DS4303R/T&R | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
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