ADR280ARTZ-R21 datasheet(3/12 Pages) AD

Il numero della parte	ADR280ARTZ-R21

Spiegazioni elettronici	1.2 V Ultralow Power High PSRR Voltage Reference

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Produttore elettronici	AD [Analog Devices]

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ADR280

Rev. C | Page 3 of 12

SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

VIN = 2.55 V to 5.5 V, TA = 25°C, unless otherwise noted.

Table 1.

Parameter

Symbol

Conditions

Min

Typ1

Max

Unit

Output Voltage

VOUT

2.4 V < VIN < 5.5 V, 0 μA < IOUT < 10 μA, −40°C < TA < +85°C

1.195

1.200

1.205

V

Temperature Coefficient

TCVO

0°C < TA < 50°C

5

20

ppm/°C

–40°C < TA < +85°C

10

40

ppm/°C

Line Regulation

ΔVOUT/ΔVIN

2.55 V < VIN < 5.5 V, no load

2

12

ppm/V

Supply Current

IIN

2.4 V < VIN < 5.5 V, no load

10

16

μA

Ground Current

IGND

V– grounded, ILOAD = 10 μA

12

20

μA

Input Voltage Range

VIN

2.4

5.5

V

Operating Temperature Range

TA

−40

+85

°C

Nominal Load Capacitance

COUT

1

μF

Output Noise Voltage

VN rms

f = 10 Hz to 10 kHz

12.5

μV rms

Voltage Noise Density

eN

f = 400 kHz

12.5

nV/√Hz

Power Supply Ripple Rejection2

PSRR

ILOAD = 10 μA

−80

dB

Start-Up Time

tON

2

ms

1 Typical values represent average readings taken at room temperature.

2 Power supply ripple rejection measurement applies to a changing input voltage (VIN) waveform with a nominal 3.6 V baseline that drops to a 3 V value for 380 μs at a

4.6 ms repetition rate.

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