Datasheet

LM4040
Improved Precision Micropower Shunt Voltage
Reference with Multiple Reverse Breakdown Voltages
2
Maxim Integrated
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—2.048V
(I
R
= 100µA, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Reverse Current (cathode to anode) ..................................20mA
Forward Current (anode to cathode) ..................................10mA
Continuous Power Dissipation (T
A
= +70°C)
3-Pin SC70 (derate 2.17mW/°C above +70°C)............174mW
3-Pin SOT23 (derate 4.01mW/°C above +70°C)..........320mW
Operating Temperature Range
LM4040_I_ _ _..................................................-40°C to +85°C
LM4040_E_ _ _ ..............................................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s)..................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
LM4040A (0.1%) 2.046 2.048 2.050
LM4040B (0.2%) 2.044 2.048 2.052
LM4040C (0.5%) 2.038 2.048 2.058
Reverse Breakdown Voltage V
R
T
A
= +25°C
LM4040D (1.0%) 2.028 2.048 2.068
V
LM4040A ±2.0 ±15
LM4040B ±4.0 ±17
LM4040C ±10 ±23
Reverse Breakdown Voltage
Tolerance (Note 2)
V
R
LM4040D ±20 ±41
mV
LM4040A/B/C 45 65
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 28 µV
RMS
Reverse Breakdown Voltage
Long-Term Stability
∆V
R
T = 1000h 120 ppm