LM385LPE3-2-5 Datasheet, PDF (3/18 Pages) Texas Instruments – MICROPOWER VOLTAGE REFERENCES

LM285Ć2.5, LM385Ć2.5, LM385BĆ2.5
MICROPOWER VOLTAGE REFERENCES
SLVS023J − JANUARY 1989 − REVISED MARCH 2005
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)^†
Reverse current, I_R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA
Forward current, I_F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mA
Package thermal impedance, θ_JA (see Notes 1 and 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97°C/W
LP package . . . . . . . . . . . . . . . . . . . . . . . . . . 140°C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . 149°C/W
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
† _{Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and}
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. Maximum power dissipation is a function of TJ(max), θ_JA, and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) − TA)/θ_JA. Operation at the absolute maximum TJ of 150°C can affect reliability.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions
IZ
Reference current
TA
Operating free-air temperature range
LM285-2.5
LM385-2.5, LM385B-2.5
MIN MAX UNIT
0.02
20 mA
−40
85
°C
0
70
electrical characteristics at specified free-air temperature
PARAMETER
TEST
CONDITIONS
TA‡
LM285-2.5
MIN TYP MAX
LM385-2.5
MIN TYP MAX
LM385B-2.5
UNIT
MIN TYP MAX
VZ
Reference
voltage
IZ = 20 µA
to 20 mA
25°C 2.462 2.5 2.538 2.425 2.5 2.575 2.462 2.5 2.538 V
Average
α_VZ
temperature
coefficient of
reference
IZ = 20 µA
to 20 mA
Full range
±20
±20
±20
ppm/°C
voltage§
Change in
IZ = 20 µA
25°C
1
2
2
∆VZ
reference
voltage with
current
to 1 mA
IZ = 1 mA
to 20 mA
Full range
25°C
Full range
1.5
10
30
2
20
30
2
mV
20
30
Long-term
∆VZ/∆t
change in
reference
IZ = 100 µA
25°C
±20
±20
±20
ppm/khr
voltage
Minimum
IZ(min) reference
current
Full range
8
20
8
20
8
20 µA
Reference
25°C
zz
impedance
IZ = 100 µA _{Full range}
0.2 0.6
1.5
0.4
1
1.5
0.4
1
Ω
1.5
Broadband IZ = 100 µA,
Vn
noise
f = 10 Hz
25°C
120
120
120
µV
voltage
to 10 kHz
‡ _{Full range is 0°C to 70°C for the LM385-2.5 and LM385B-2.5, and −40°C to 85°C for the LM285-2.5.}
§ _{The average temperature coefficient of reference voltage is defined as the total change in reference voltage divided by the specified temperature}
range.
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