REF198GBC View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

REF198GBC

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

REF191–SPECIFICATIONS

ELECTRICAL CHARACTERISTICS (@ VS = 3.3 V, TA = +25؇C unless otherwise noted)

Parameter

Symbol

Condition

Min Typ

INITIAL ACCURACY1

“E” Grade

“F” Grade

“G” Grade

VO

IOUT = 0 mA

2.046

2.043

2.038

2.048

LINE REGULATION2

“E” Grade

“F & G” Grades

LOAD REGULATION2

“E” Grade

“F & G” Grades

∆VO/∆VIN

3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA

2

4

∆VO/∆VLOAD VS = 5.0 V, 0 ≤ IOUT ≤ 30 mA

4

6

DROPOUT VOLTAGE

VS – VO

VS = 3.15 V, ILOAD = 2 mA

VS = 3.3 V, ILOAD = 10 mA

VS = 3.6 V, ILOAD = 30 mA

LONG-TERM STABILITY3

∆VO

1000 Hours @ +125°C

1.2

NOISE VOLTAGE

eN

0.1 Hz to 10 Hz

20

NOTES

1Initial accuracy includes temperature hysteresis effect.

2Line and load regulation specifications include the effect of self-heating.

3Long-term drift is guaranteed by 1000 hours life test performed on three independent wafer lots at +125 °C, with an LTPD of 1.3.

Specifications subject to change without notice.

Max

2.050

2.053

2.058

4

8

10

15

0.95

1.25

1.55

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

Parameter

TEMPERATURE COEFFICIENT1, 2

“E” Grade

“F” Grade

“G” Grade3

LINE REGULATION4

“E” Grade

“F & G” Grades

LOAD REGULATION4

“E” Grade

“F & G” Grades

DROPOUT VOLTAGE

Symbol

TCVO/°C

∆VO/∆VIN

∆VO/∆VLOAD

VS – VO

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

Condition

IOUT = 0 mA

3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA

VS = 5.0 V, 0 ≤ IOUT ≤ 25 mA

VS = 3.15 V, ILOAD = 2 mA

VS = 3.3 V, ILOAD = 10 mA

VS = 3.6 V, ILOAD = 25 mA

No Load

No Load

Min Typ

2

5

10

5

10

5

10

2.4

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

5

10

25

10

20

15

20

0.95

1.25

1.55

–8

0.8

–8

45

15

Units

V

V

V

ppm/V

ppm/V

ppm/mA

ppm/mA

V

V

V

mV

µV p-p

Units

ppm/°C

ppm/°C

ppm/°C

ppm/V

ppm/V

ppm/mA

ppm/mA

V

V

V

V

µA

V

µA

µA

µA

–2–

REV. D

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