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LM4050BEM3-8.2 Datasheet(PDF) 3 Page - Texas Instruments

Part # LM4050BEM3-8.2
Description  LM4050-N/LM4050-N-Q1 Precision Micropower Shunt Voltage Reference
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM4050BEM3-8.2 Datasheet(HTML) 3 Page - Texas Instruments

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LM4050-N, LM4050-N-Q1
www.ti.com
SNOS455E – MAY 2000 – REVISED APRIL 2013
LM4050-N-2.0
Electrical Characteristics
Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25°C. The grades A, B and C designate initial
Reverse Breakdown Voltage tolerances of ±0.1%, ±0.2%, and 0.5% respectively.
LM4050-NAIM3 LM4050-NBIM3 LM4050-NCIM3
LM4050-
LM4050-
LM4050-
Units
Symbol
Parameter
Conditions
Typical(1)
NAEM3
NBEM3
NCEM3
(Limit)
Limits(2)
Limits(2)
Limits(2)
VR
Reverse Breakdown Voltage
IR = 100 μA
2.048
V
Reverse Breakdown Voltage
IR = 100 μA
±2.048
±4.096
±10.24
mV (max)
Tolerance(3)
Industrial Temp. Range
±9.0112
±11.4688
±14.7456
mV (max)
Extended Temp. Range
±12.288
±14.7456
±17.2032
mV (max)
IRMIN
Minimum Operating Current
41
μA
60
60
60
μA (max)
65
65
65
μA (max)
ΔVR/ΔT
Average Reverse Breakdown
IR = 10 mA
±20
ppm/°C
Voltage Temperature
IR = 1 mA
±15
ppm/°C
Coefficient(3)
IR = 100 μA
±15
ppm/°C
±50
±50
±50
(max)
ΔVR/ΔIR
Reverse Breakdown Voltage
IRMIN ≤ IR ≤ 1 mA
0.3
mV
Change with Operating Current
0.8
0.8
0.8
mV (max)
Change(4)
1.2
1.2
1.2
mV (max)
1 mA
≤ IR ≤ 15 mA
2.3
mV
6.0
6.0
6.0
mV (max)
8.0
8.0
8.0
mV (max)
ZR
Reverse Dynamic Impedance
IR = 1 mA, f = 120 Hz, IAC
0.3
Ω
= 0.1 IR
eN
Wideband Noise
IR = 100 μA
34
μVrms
10 Hz
≤ f ≤ 10 kHz
ΔVR
Reverse Breakdown Voltage
t = 1000 hrs
120
Long Term Stability
T = 25°C ±0.1°C
ppm
IR = 100 μA
VHYST
Thermal Hysteresis
ΔT = −40°C to 125°C
0.7
mV
(5)
(1)
Typicals are at TJ = 25°C and represent most likely parametric norm.
(2)
Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate National's AOQL.
(3)
The boldface (over-temperature) limit for Reverse Breakdown Voltage Tolerance is defined as the room temperature Reverse
Breakdown Voltage Tolerance ±[(
ΔV R/ΔT)(maxΔT)(VR)]. Where, ΔVR/ΔT is the VR temperature coefficient, maxΔT is the maximum
difference in temperature from the reference point of 25°C to T MIN or TMAX, and VR is the reverse breakdown voltage. The total over-
temperature tolerance for the different grades in the industrial temperature range where max
ΔT = 65°C is shown below:
A-grade:
±0.425% = ±0.1% ±50 ppm/°C × 65°C
B-grade: ±0.525% = ±0.2% ±50 ppm/°C × 65°C
C-grade: ±0.825% = ±0.5% ±50 ppm/°C ×
65°CTherefore, as an example, the A-grade LM4050-N-2.5 has an over-temperature Reverse Breakdown Voltage tolerance of ±2.5V ×
0.425% = ±11 mV.
(4)
Load regulation is measured on pulse basis from no load to the specified load current. Output changes due to die temperature change
must be taken into account separately.
(5)
Thermal hysteresis is defined as the difference in voltage measured at +25°C after cycling to temperature -40°C and the 25°C
measurement after cycling to temperature +125°C.
Copyright © 2000–2013, Texas Instruments Incorporated
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