LT1009_06 Datasheet, PDF (3/17 Pages) Texas Instruments – 2.5-V INTEGRATED REFERENCE CIRCUIT

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Recommended Operating Conditions
T_A Operating free-air temperature range
LT1009
2.5-V INTEGRATED REFERENCE CIRCUIT
SLVS013L – MAY 1987 – REVISED SEPTEMBER 2005
LT1009C
LT1009I
MIN
MAX UNIT
0
70
°C
–40
85
Electrical Characteristics
at specified free-air temperature
PARAMETER
TEST CONDITIONS
T_A ⁽¹⁾
V_Z
V_F
∆V_Z(temp)
α_VZ
∆V_Z
∆V_Z/∆t
Z_Z
Reference voltage
Forward voltage
Adjustment range
Change in
reference voltage
with temperature
Average temperature
coefficient of
reference voltage⁽²⁾
Change in reference
voltage with current
Long-term change in
reference voltage
Reference impedance
D package
LP package
I_Z = 1 mA _{D package}
LP package
I_F = 2 mA
I_Z = 1 mA,
V_ADJ = GND to V_Z
I_Z = 1 mA,
V_ADJ = 0.6 V to V_Z – 0.6 V
D package
LP package
I_Z = 400 µA to 10 mA
I_Z = 1 mA
I_Z = 1 mA
25°C
Full range
25°C
25°C
Full range
0°C to 70°C
–40°C to 85°C
25°C
Full range
25°C
25°C
Full range
LT1009C
MIN TYP MAX
2.49 2.5 2.51
2.495 2.5 2.505
2.485
2.515
2.491
2.509
0.4
1
125
45
5
4
15
25
2.6
10
12
20
0.3
1
1.4
LT1009I
MIN TYP
2.49 2.5
2.495 2.5
2.475
2.48
0.4
MAX
2.51
2.505
2.525
2.52
1
UNIT
V
V
125
mV
45
15
mV
15
ppm/
20
35 ^°C
2.6
6
mV
10
20
ppm/
khr
0.3
1
Ω
1.4
(1) Full range is 0°C to 70°C for the LT1009C and –40°C to 85°C for the LT1009I.
(2) The average temperature coefficient of reference voltage is defined as the total change in reference voltage divided by the specified
temperature range.
3