LM4040
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
SLOS456J – JANUARY 2005 – REVISED SEPTEMBER 2006
LM4040x41I Electrical Characteristics
at industrial temperature range, full-range TA = –40°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TA
LM4040C41I
MIN TYP MAX
VZ
Reverse breakdown voltage
∆VZ
Reverse breakdown voltage
tolerance
IZ = 100 µA
IZ = 100 µA
25°C
4.096
25°C
–20
20
Full range –47
47
IZ,min Minimum cathode current
25°C
Full range
50
83
88
αVZ
DVZ
DIZ
IZ = 10 mA
Average temperature coefficient
of reverse breakdown voltage
IZ = 1 mA
IZ = 100 µA
Reverse breakdown voltage
change with cathode current
change
IZ,min < IZ < 1 mA
1 mA < IZ < 15 mA
25°C
25°C
Full range
25°C
25°C
Full range
25°C
Full range
±30
±20
±100
±20
0.5 0.9
1.2
3
7
10
ZZ
Reverse dynamic impedance
IZ = 1 mA, f = 120 Hz,
IAC = 0.1 IZ
25°C
eN
Wideband noise
IZ = 100 µA,
10 Hz ≤ f ≤ 10 kHz
25°C
0.5
1
80
Long-term stability of reverse
breakdown voltage
VHYST Thermal hysteresis(1)
t = 1000 h,
TA = 25°C ± 0.1°C,
IZ = 100 µA
∆TA = –40°C to 125°C
120
0.08
(1) Thermal hysteresis is defined as VZ,25°C (after cycling to –40°C) – VZ,25°C (after cycling to 125°C).
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LM4040D41I
UNIT
MIN TYP MAX
4.096
V
–41
41
mV
–81
81
50
83
µA
88
±30
±20
ppm/°C
±150
±20
0.5 1.2
1.5
mV
3
9
13
0.5 1.3 Ω
80
µVRMS
120
ppm
0.08
%
18
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