LM4040 datasheet(3/15 Pages) MAXIM

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Improved Precision Micropower Shunt Voltage

Reference with Multiple Reverse Breakdown Voltages

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ELECTRICAL CHARACTERISTICS—2.500V

(IR = 100µA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

LM4040A (0.1%)

2.4975

2.5000

2.5025

LM4040B (0.2%)

2.4950

2.5000

2.5050

LM4040C (0.5%)

2.4875

2.5000

2.5125

Reverse Breakdown Voltage

TA = +25

°C

LM4040D (1.0%)

2.4750

2.5000

2.5250

LM4040A

±2.0

±19

LM4040B

±4.0

±21

LM4040C

±10

±29

Reverse Breakdown Voltage

Tolerance (Note 2)

LM4040D

±20

±49

LM4040A/B/C

Minimum Operating Current

IRMIN

LM4040D

µA

IR = 10mA

±20

LM4040A/B/C

±15

±100

IR = 1mA

LM4040D

±15

±150

Average Reverse Voltage

Temperature Coefficient

(Notes 2 and 3)

∆VR/∆T

IR = 100µA

±15

ppm/

°C

LM4040A/B/C

0.3

1.0

IRMIN

≤ IR ≤ 1mA

LM4040D

0.4

1.2

LM4040A/B/C

2.5

8.0

Reverse Breakdown Voltage

Change with Operating

Current Change

1mA

≤ IR ≤ 15mA

LM4040D

2.5

10.0

LM4040A/B

0.3

0.8

LM4040C

0.3

0.9

Reverse Dynamic

Impedance (Note 3)

IR = 1mA, f = 120Hz,

IAC = 0.1IR

LM4040D

0.3

1.1

Ω

Wideband Noise

IR = 100µA, 10Hz

≤ f ≤ 10kHz

µVRMS

Reverse Breakdown Voltage

Long-Term Stability

∆VR

T = 1000h

120

ppm

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