LT1004CDRG4-1-2 Datasheet, PDF (4/25 Pages) Texas Instruments – MICROPOWER INTEGRATED VOLTAGE REFERENCES

LT1004-1.2, LT1004-2.5
MICROPOWER INTEGRATED VOLTAGE REFERENCES
SLVS022M − JANUARY 1989 − REVISED MAY 2008
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
PW package . . . . . . . . . . . . . . . . . . . . . . . . . 149°C/W
Operating virtual junction temperature, T_J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
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 T_J(max), θ_JA, and T_A. The maximum allowable power dissipation at any allowable
ambient temperature is P_D = (T_J(max) − T_A)/θ_JA. Operating at the absolute maximum T_J of 150°C can affect reliability.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions
T_A
Operating free-air temperature
LT1004C
LT1004I
MIN MAX UNIT
0
70
°C
−40
85
electrical characteristics at specified free-air temperature
PARAMETER
TEST
CONDITIONS
LT1004-1.2
LT1004-2.5
T_A‡
UNIT
MIN TYP MAX MIN TYP MAX
25°C
1.231 1.235 1.239 2.48 2.5 2.52
V_Z
Reference voltage
I_Z = 100 µA
Full ^{LT1004C 1.225}
range _{LT1004I 1.225}
1.245 2.47
1.245 2.47
2.53
V
2.53
a_VZ
Average
I_Z = 10 µA
temperature coefficient
of reference voltage^{§ I}Z ^{= 20 µA}
25°C
20
ppm/°C
20
Change in
∆V_Z
reference voltage
with current
I_Z = I_Z(min) to 1 mA
I_Z = 1 mA to 20 mA
25°C
Full range
25°C
Full range
1
1
1.5
1.5
mV
10
10
20
20
∆V_Z/∆t
Long-term change
in reference voltage
I_Z = 100 µA
25°C
20
20
ppm/khr
Minimum
I_Z(min) _{reference current}
Full range
8
10
12
20 µA
z_z
Reference impedance I_Z = 100 µA
25°C
Full range
0.2 0.6
1.5
0.2 0.6
Ω
1.5
V_n
Broadband
noise voltage
I_Z = 100 µA,
f = 10 Hz to 10 kHz
25°C
60
120
µV
‡ _{Full range is 0°C to 70°C for the LT1004C and −40°C to 85°C for the LT1004I.}
§ _{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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