REF191FS データシートの表示（PDF） - Analog Devices

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REF191FS

0.3-18V; precision micropower, low dropout, voltage reference. For portable instrumentation, A-to-D and D-to-A converters, smart sensors

Analog Devices 

REF19x Series

REF193–SPECIFICATIONS

ELECTRICAL CHARACTERISTICS (@ VS = 3.3 V, TA = –40؇C ≤ TA ≤ +85؇C unless otherwise noted)

Parameter

Symbol

Condition

Min Typ Max

TEMPERATURE COEFFICIENT1, 2

“G” Grade3

LINE REGULATION4

“G” Grade

LOAD REGULATION4

“G” Grade

TCVO/°C

∆VO/∆VIN

∆VO/∆VLOAD

IOUT = 0 mA

3.3 V ≤ VS ≤ 15 V, IOUT = 0 mA

VS = 5.0 V, 0 ≤ IOUT ≤ 25 mA

10 25

10 20

10 20

DROPOUT VOLTAGE

VS – VO

VS = 3.8 V, ILOAD = 10 mA

0.80

VS = 4.1 V, ILOAD = 30 mA

1.10

SLEEP PIN

Logic High Input Voltage

VH

Logic High Input Current

IH

Logic Low Input Voltage

VL

Logic Low Input Current

IL

SUPPLY CURRENT

Sleep Mode

No Load

No Load

2.4

–8

0.8

–8

45

15

NOTES

1For proper operation, a 1 µF capacitor is required between the output pin and the GND pin of the device.

2TCVO is defined as the ratio of output change with temperature variation to the specified temperature range expressed in ppm/ °C.

TCVO = (V max–V min)/VO (TMAX–TMIN).

3Guaranteed by characterization.

4Line and load regulation specifications include the effect of self-heating.

Specifications subject to change without notice.

ELECTRICAL CHARACTERISTICS (@ VS = 3.3 V, –40؇C ≤ TA ≤ +125؇C unless otherwise noted)

Parameter

Symbol

Condition

Min Typ

TEMPERATURE COEFFICIENT1, 2

“G” Grade3

TCVO/°C

IOUT = 0 mA

10

LINE REGULATION4

“G” Grade

∆VO /∆VIN

3.3 V ≤ VS ≤ 15 V, IOUT = 0 mA

20

LOAD REGULATION4

“G” Grade

∆VO /∆VLOAD VS = 5.0 V, 0 ≤ IOUT ≤ 20 mA

10

DROPOUT VOLTAGE

VS – VO

VS = 3.8 V, ILOAD = 10 mA

VS = 4.1 V, ILOAD = 20 mA

NOTES

1For proper operation, a 1 µF capacitor is required between the output pin and the GND pin of the device.

2TCVO is defined as the ratio of output change with temperature variation to the specified temperature range expressed in ppm/ °C.

TCVO = (V max–V min)/VO (TMAX–TMIN).

3Guaranteed by characterization.

4Line and load regulation specifications include the effect of self-heating.

Specifications subject to change without notice.

Max

0.80

1.10

Units

ppm/°C

ppm/V

ppm/mA

V

V

V

µA

V

µA

µA

µA

Units

ppm/°C

ppm/V

ppm/mA

V

V

–6–

REV. D

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