LM4040
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLOS456I–JANUARY 2005–REVISED DECEMBER 2005
LM4040x30Q Electrical Characteristics
at extended temperature range, full-range TA = –40°C to 125°C (unless otherwise noted)
LM4040C30Q
LM4040D30Q
PARAMETER
TEST CONDITIONS
IZ = 100 µA
TA
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
VZ
Reverse breakdown voltage
25°C
25°C
3
3
V
–15
–45
15
45
77
82
–30
–75
30
75
77
82
Reverse breakdown voltage
tolerance
∆VZ
IZ = 100 µA
mV
Full range
25°C
47
47
IZ,min
Minimum cathode current
µA
Full range
25°C
IZ = 10 mA
±20
±15
±20
±15
25°C
Average temperature coefficient
of reverse breakdown voltage
αVZ
IZ = 1 mA
ppm/°C
Full range
25°C
±100
±150
IZ = 100 µA
IZ,min < IZ < 1 mA
±15
±15
25°C
0.4
0.8
1.1
6
0.4
1.1
1.3
8
Reverse breakdown voltage
change with cathode current
change
DVZ
DIZ
Full range
25°C
mV
2.7
2.7
1 mA < IZ < 15 mA
Full range
9
11
IZ = 1 mA, f = 120 Hz,
IAC = 0.1 IZ
ZZ
eN
Reverse dynamic impedance
Wideband noise
25°C
25°C
0.4
35
0.9
0.4
35
1.2
Ω
IZ = 100 µA,
10 Hz ≤ f ≤ 10 kHz
µVRMS
t = 1000 h,
TA = 25°C ± 0.1°C,
IZ = 100 µA
Long-term stability of reverse
breakdown voltage
120
120
ppm
%
VHYST Thermal hysteresis(1)
∆TA = –40°C to 125°C
0.08
0.08
(1) Thermal hysteresis is defined as VZ,25°C (after cycling to –40°C) – VZ,25°C (after cycling to 125°C).
16