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| 型号： | REF191ESZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 10/28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) |
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REF19x Series
ELECTRICAL CHARACTERISTICS—REF194 @ ? 40°C ≤ T A ≤ +85°C
@ V S = 5.0 V, T A = ?40°C ≤ T A ≤ +85°C, unless otherwise noted.
Table 12.
Data Sheet
Parameter
Symbol
Condition
Min
Typ
Max
Unit
TEMPERATURE COEFFICIENT 1, 2
TCV O /°C
E Grade
G Grade 3
I OUT = 0 mA
2
10
5
25
ppm/°C
ppm/°C
LINE REGULATION 4
?V O /?V IN
E Grade
G Grade
4.75 V ≤ V S ≤ 15 V, I OUT = 0 mA
5
10
10
20
ppm/V
ppm/V
LOAD REGULATION 4
?V O /?V LOAD
E Grade
G Grade
V S = 5.80 V, 0 mA ≤ I OUT ≤ 25 mA
5
10
15
20
ppm/mA
ppm/mA
DROPOUT VOLTAGE
V S ? V O
V S = 5.00 V, I LOAD = 10 mA
V S = 5.80 V, I LOAD = 25 mA
0.5
1.30
V
V
SLEEP PIN
Logic High Input Voltage
Logic High Input Current
Logic Low Input Voltage
Logic Low Input Current
SUPPLY CURRENT
Sleep Mode
V H
I H
V L
I L
No load
No load
2.4
?8
0.8
?8
45
15
V
μA
V
μA
μA
μA
1
2
3
4
For proper operation, a 1 μF capacitor is required between the output pin and the GND pin of the device.
TCV O is defined as the ratio of output change with temperature variation to the specified temperature range expressed in ppm/°C.
TCV O = ( V MAX ? V MIN )/ V O ( T MAX ? T MIN )
Guaranteed by characterization.
Line and load regulation specifications include the effect of self-heating.
ELECTRICAL CHARACTERISTICS—REF194 @ ? 40°C ≤ T A ≤ +125°C
@ V S = 5.0 V, ?40°C ≤ T A ≤ +125°C, unless otherwise noted.
Table 13.
Parameter
Symbol
Condition
Min
Typ
Max
Unit
TCV O /°C
E Grade
G Grade 3
LINE REGULATION 4
E Grade
G Grade
LOAD REGULATION
E Grade
Grade
ΔV O /ΔV IN
ΔV O /ΔV LOAD
I OUT = 0 mA
4.75 V ≤ V S ≤ 15 V, I OUT = 0 mA
V S = 5.80 V, 0 mA ≤ I OUT ≤ 20 mA
2
10
5
10
5
10
ppm/°C
ppm/°C
ppm/V
ppm/V
ppm/mA
ppm/mA
DROPOUT VOLTAGE
V S ? V O
V S = 5.10 V, I LOAD = 10 mA
V S = 5.95 V, I LOAD = 20 mA
0.60
1.45
V
V
1
2
3
4
For proper operation, a 1 μF capacitor is required between the output pin and the GND pin of the device.
TCV O is defined as the ratio of output change with temperature variation to the specified temperature range expressed in ppm/°C.
TCV O = ( V MAX ? V MIN )/ V O ( T MAX ? T MIN )
Guaranteed by characterization.
Line and load regulation specifications include the effect of self-heating.
Rev. L | Page 10 of 28
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