LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
5
Maxim Integrated
ELECTRICAL CHARACTERISTICS—3.300V
(I
R
= 100µA, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
LM4040A (0.1%) 3.2967 3.3000 3.3033
LM4040B (0.2%) 3.2934 3.3000 3.3066
LM4040C (0.5%) 3.2835 3.3000 3.3165
Reverse Breakdown Voltage V
R
T
A
= +25°C
LM4040D (1.0%) 3.2670 3.3000 3.3330
V
LM4040A ±3.0 ±22
LM4040B ±6.0 ±26
LM4040C ±15 ±34
Reverse Breakdown Voltage
Tolerance (Note 2)
V
R
LM4040D ±30 ±59
mV
LM4040A/B/C 45 67
Minimum Operating Current I
RMIN
LM4040D 45 70
µA
I
R
= 10mA ±20
LM4040A/B/C ±15 ±100
I
R
= 1mA
LM4040D ±15 ±150
Average Reverse Voltage
Temperature Coefficient
(Notes 2 and 3)
∆V
R
/∆T
I
R
= 100µA ±15
ppm/°C
LM4040A/B/C 0.3 1.0
I
RMIN
≤ I
R
≤ 1mA
LM4040D 0.3 1.2
LM4040A/B/C 2.5 8.0
Reverse Breakdown Voltage
Change with Operating
Current Change
1mA ≤ I
R
≤ 15mA
LM4040D 2.5 10.0
mV
LM4040A/B 0.3 0.8
LM4040C 0.3 0.9
Reverse Dynamic
Impedance (Note 3)
Z
R
I
R
= 1mA, f = 120Hz,
I
AC
= 0.1I
R
LM4040D 0.3 1.1
Ω
Wideband Noise e
N
I
R
= 100µA, 10Hz ≤ f ≤ 10kHz 50 µV
RMS
Reverse Breakdown Voltage
Long-Term Stability
∆V
R
T = 1000h 120 ppm
