Datasheet

LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
6
Maxim Integrated
ELECTRICAL CHARACTERISTICS—4.096V
(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%) 4.092 4.096 4.100
LM4040B (0.2%) 4.088 4.096 4.104
LM4040C (0.5%) 4.076 4.096 4.116
Reverse Breakdown Voltage V
R
T
A
= +25°C
LM4040D (1.0%) 4.055 4.096 4.137
V
LM4040A ±4.1 ±31
LM4040B ±8.2 ±35
LM4040C ±20 ±47
Reverse Breakdown Voltage
Tolerance (Note 2)
V
R
LM4040D ±41 ±81
mV
LM4040A/B/C 50 73
Minimum Operating Current I
RMIN
LM4040D 50 78
µA
I
R
= 10mA ±30
LM4040A/B/C ±20 ±100
I
R
= 1mA
LM4040D ±20 ±150
Average Reverse Voltage
Temperature Coefficient
(Notes 2 and 3)
∆V
R
/∆T
I
R
= 100µA ±15
ppm/°C
LM4040A/B/C 0.5 1.2
I
RMIN
≤ I
R
≤ 1mA
LM4040D 0.5 1.5
LM4040A/B/C 3.0 10.0
Reverse Breakdown Voltage
Change with Operating
Current Change
1mA ≤ I
R
≤ 15mA
LM4040D 3.0 13.0
mV
LM4040A/B/C 0.5 1.0
Reverse Dynamic
Impedance (Note 3)
Z
R
I
R
= 1mA, f = 120Hz,
I
AC
= 0.1I
R LM4040D 0.5 1.3
Ω
Wideband Noise e
N
I
R
= 100µA, 10Hz ≤ f ≤ 10kHz 64 µV
RMS
Reverse Breakdown Voltage
Long-Term Stability
∆V
R
T = 1000h 120 ppm