
LM4050/LM4051
50ppm/°C Precision Micropower Shunt Voltage
References with Multiple Reverse Breakdown Voltages
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3
ELECTRICAL CHARACTERISTICS—2.048V
(IR = 100A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LM4050A (0.1%)
2.0460
2.0480
2.0500
LM4050B (0.2%)
2.0439
2.0480
2.0521
Reverse Breakdown Voltage
VR
TA = +25
°C
LM4050C (0.5%)
2.0378
2.0480
2.0582
V
LM4050A
±2.0
±12
LM4050B
±4.0
±14
Reverse Breakdown Voltage
Tolerance (Note 2)
VRTOL
LM4050C
±10
±20
mV
Minimum Operating Current
IRMIN
45
65
A
IR = 10mA
±20
IR = 1mA
±15
±50
Average Reverse Voltage
Temperature Coefficient
(Notes 2, 3)
VR/T
IR = 100A
±15
ppm/
°C
IRMIN
≤ IR ≤ 1mA
0.3
1.0
Reverse Breakdown Voltage
Change with Operating
Current Change
1mA
≤ IR ≤ 15mA
2.5
8.0
mV
LM4050A/B
0.3
0.8
Reverse Dynamic
Impedance (Note 3)
ZR
IR = 1mA, f = 120Hz,
IAC = 0.1IR
LM4050C
0.3
0.9
Wideband Noise
eN
IR = 100A, 10Hz
≤ f ≤ 10kHz
28
VRMS
Reverse Breakdown Voltage
Long-Term Stability
VR
T = 1000h
120
ppm