参数资料
型号: REF191ESZ-REEL
厂商: Analog Devices Inc
文件页数: 4/28页
文件大小: 0K
描述: IC VREF SERIES PREC 2.048V 8SOIC
标准包装: 2,500
系列: REF19
基准类型: 串联,精度
输出电压: 2.048V
容差: ±2mV
温度系数: 5ppm/°C
输入电压: 2.3 V ~ 15 V
通道数: 1
电流 - 静态: 15µA
电流 - 输出: 30mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SO
包装: 带卷 (TR)

REF19x Series
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—REF191 @ T A = 25°C
@ V S = 3.3 V, T A = 25°C, unless otherwise noted.
Table 2.
Data Sheet
Parameter
Symbol
Condition
Min
Typ
Max
Unit
INITIAL ACCURACY 1
V O
E Grade
F Grade
G Grade
I OUT = 0 mA
2.046
2.043
2.038
2.048
2.050
2.053
2.058
V
V
V
LINE REGULATION 2
ΔV O /ΔV IN
E Grade
F and G Grades
3.0 V ≤ V S ≤ 15 V, I OUT = 0 mA
2
4
4
8
ppm/V
ppm/V
LOAD REGULATION 2
ΔV O /ΔV LOAD
E Grade
F and G Grades
V S = 5.0 V, 0 mA ≤ I OUT ≤ 30 mA
4
6
10
15
ppm/mA
ppm/mA
DROPOUT VOLTAGE
LONG-TERM STABILITY 3
NOISE VOLTAGE
V S ? V O
DV O
e N
V S = 3.0 V, I LOAD = 2 mA
V S = 3.3 V, I LOAD = 10 mA
V S = 3.6 V, I LOAD = 30 mA
1000 hours @ 125°C
0.1 Hz to 10 Hz
1.2
20
0.95
1.25
1.55
V
V
V
mV
μV p-p
1
2
3
Initial accuracy does not include shift due to solder heat effect (see the Applications Information section).
Line and load regulation specifications include the effect of self-heating.
Long-term stability specification is noncumulative. The drift in subsequent 1000-hour periods is significantly lower than in the first 1000-hour period.
Rev. L | Page 4 of 28
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