15 FN7549.2 February 26, 2014 FIGURE 27. PRECISION VOLTAGE REFERENCE FOR +" />
參數(shù)資料
型號: ISL26310FBZ-T
廠商: Intersil
文件頁數(shù): 7/23頁
文件大?。?/td> 0K
描述: IC ADC 12BIT SPI/SRL 125K 8SOIC
標準包裝: 2,500
位數(shù): 12
采樣率(每秒): 125k
數(shù)據(jù)接口: 串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 80mW
電壓電源: 單電源
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SOIC
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個差分,單極
ISL26310, ISL26311, ISL26312, ISL26313, ISL26314, ISL26315, ISL26319
15
FN7549.2
February 26, 2014
FIGURE 27. PRECISION VOLTAGE REFERENCE FOR +5V SUPPLY
1
2
3
4
8
7
6
5
DNC
VIN
COMP
GND
DNC
VOUT
TRIM
0.1F
VDD
1F (SEE VOLTAGE REFERENCE INPUT)
2.5V
VREF
0.1F
BULK
+
5V
ISL21090
ISL2631X
ISL2632X
FIGURE 28. VOLTAGE REFERENCE FOR +2.7V TO +3.6V, OR FOR +5V SUPPLY
VDD
1F (SEE VOLTAGE REFERENCE INPUT)
VREF
0.1F
BULK
+
+2.7V TO +3.6V
ISL21010
GND
VIN
VOUT
1
2
3
0.1F
1.25, 2.048 OR 2.5V
OR +5V
ISL2631X
ISL2632X
FIGURE 29. VOLTAGE REFERENCE FOR ISL26310/313 IS DERIVED FROM VDD
VDD
1F (SEE VOLTAGE REFERENCE INPUT)
BULK
+2.7V TO +5V
ISL26310
ISL26313
TABLE 1. OUTPUT CODES - DIFFERENTIAL
INPUT VOLTAGE
TWO’S COMPLEMENT (12-bit)
>(VFS - 1.5 LSB)
7FF
VFS - 1.5 LSB
7FF
...
7FE
-0.5 LSB
000
FFF
-VFS +0.5 LSB
801
800
NOTE: VFS in the table above equals the voltage between AIN+ and AIN-.
Differential full scale is equal to 2* VREF.
TABLE 2. OUTPUT CODES - SINGLE-ENDED
INPUT VOLTAGE
BINARY (12-bit)
>AIN - 1.5 LSB
FFF
AIN - 1.5 LSB
FFF
FFE
0.5 LSB
001
000
<0.5 LSB
000
NOTE: Single-ended full scale is equal to VREF.
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