LM4041 datasheet(3/7 Pages) MAXIM

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Improved Precision Micropower

Shunt Voltage Reference

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ELECTRICAL CHARACTERISTICS (continued)

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

Note 1: All devices are 100% production tested at +25°C and are guaranteed by design for TA = TMIN to TMAX, as specified.

Note 2: The overtemperature limit for Reverse Breakdown Voltage Tolerance is defined as the room-temperature Reverse

Breakdown Voltage Tolerance ±[(

ΔVR / ΔT)(maxΔT)(VR)], where ΔVR / ΔT is the VR temperature coefficient, maxΔT is the

maximum difference in temperature from the reference point of +25°C to TMIN or TMAX, and VR is the reverse breakdown

voltage. The total overtemperature tolerance for the different grades in the temperature range where max

ΔT = +65°C is

shown below:

A grade: ±0.75% = ±0.1% ±100ppm/°C ✕ 65°C

B grade: ±0.85% = ±0.2% ±100ppm/°C ✕ 65°C

C grade: ±1.15% = ±0.5% ±100ppm/°C ✕ 65°C

D grade: ±1.98% = ±1.0% ±150ppm/°C ✕ 65°C

The total overtemperature tolerance for the different grades in the extended temperature range where max

ΔT = +100°C is

shown below:

A grade: ±1.1% = ±0.1% ±100ppm/°C ✕ 100°C

B grade: ±1.2% = ±0.2% ±100ppm/°C ✕ 100°C

C grade: ±1.5% = ±0.5% ±100ppm/°C ✕ 100°C

D grade: ±2.5% = ±1.0% ±150ppm/°C ✕ 100°C

Therefore, as an example, the A-grade LM4041-1.2 has an overtemperature reverse breakdown voltage tolerance of ±2.5V

x 0.75% = ±19mV.

Note 3: Guaranteed by design.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Wideband Noise

IR = 100

μA, 10Hz ≤ f ≤ 10kHz

μVRMS

Reverse Breakdown Voltage

Long-Term Stability

ΔVR

T = 1000h, IR = 100

μA

120

ppm

TEMPERATURE DRIFT

TEMPERATURE (

°C)

100

-25

-2

-1

-3

-50

125

REVERSE VOLTAGE vs. CURRENT

SOURCE CURRENT (mA)

020

TA = +25

°C

TA = -40

°C

TA = +125

°C

TA = +85

°C

Typical Operating Characteristics

(IR = 100µA, SC70-3 package, TA = +25°C, unless otherwise noted.)

100

0.8

0.4

1.2

1.6

2.0

REVERSE CHARACTERISTICS AND

MINIMUM OPERATING CURRENT

REVERSE VOLTAGE (V)

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