ADR821 datasheet(3/20 Pages) AD

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ADR821/ADR827

Rev. 0 | Page 3 of 20

SPECIFICATIONS

ADR821 ELECTRICAL CHARACTERISTICS—REFERENCE

VIN = 2.8 V to 15 V, TA = 25°C, CIN = COUT = 0.1 μF, unless otherwise noted.

Table 2.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

OUTPUT VOLTAGE

VOUT

A Grade

2.490

2.500

2.510

B Grade

2.495

2.500

2.505

INITIAL ACCURACY

VOERR

A Grade

0.40

B Grade

5.00

0.20

TEMPERATURE COEFFICIENT

TCVOUT

−40°C < TA < +125°C

A Grade

ppm/°C

B Grade

ppm/°C

DROPOUT (VOUT – VIN)

VDO

IOUT = 0 mA

0.3

LINE REGULATION

∆VOUT/∆VIN

VIN = 2.8 V to 15 V, −40°C < TA < +125°C

ppm/V

LOAD REGULATION

∆VOUT/∆ILOAD

ILOAD = 0 mA to 5 mA, −40°C < TA < +125°C,

VIN = 5 V

400

ppm/mA

ILOAD = 0 mA to 5 mA, VIN = 5 V

200

ppm/mA

ILOAD = −3 mA to 0 mA, −40°C < TA < +125°C,

VIN = 5 V

600

ppm/mA

ILOAD = −3 mA to +5 mA, VIN = 5 V

300

ppm/mA

VOLTAGE NOISE

eN p-p

0.1 Hz to 10 Hz

μV p-p

BROADBAND NOISE

10 Hz to 10 kHz

430

μV p-p

TURN-ON SETTLING TIME

CIN = 0 μF

μs

POWER SUPPLY

Positive Supply Current

ISY+

No load, −40°C < TA < +125°C

400

μA

Negative Supply Current

ISY−

No load, −40°C < TA < +125°C

300

μA

ON-BOARD RESISTORS

R1, R2

Resistor Tolerance

kΩ

Resistor Matching

0.5

Resistor Temperature Coefficient

±100

ppm/°C

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