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| 型號(hào)： | LM4121AI1.2MWA |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.25 V, UUC |
| 封裝： | WAFER |
| 文件頁(yè)數(shù)： | 14/19頁(yè) |
| 文件大?。?/td> | 490K |
| 代理商： | LM4121AI1.2MWA |
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Electrical Characteristics
LM4121-ADJ Unless otherwise specified V
IN = 3.3V, VOUT =VREF,ILOAD =0, COUT = 0.01F, TA =Tj = 25C. Lim-
its with standard typeface are for T
j = 25C, and limits in boldface type apply over the 40C ≤ TA ≤ +85C temperature
range.
Symbol
Parameter
Conditions
Min (Note 5)
Typ (Note 4)
Max (Note 5)
Units
V
OUT =VREF
Output Voltage Initial
Accuracy
LM4121A-ADJ
1.216
±0.2
%
LM4121-ADJ
±0.5
TCV
REF/C
Temperature Coefficient
40C
≤ T
A ≤ +125C
14
50
ppm/c
V
REF/VIN
Line Regulation
1.8V
≤ V
IN ≤ 12V
0.0007
0.009
0.012
%/V
V
OUT/ILOAD
Load Regulation
0mA
≤ I
LOAD ≤ 1 mA
0.03
0.08
0.17
%/mA
1mA
≤ I
LOAD ≤ 5 mA
0.01
0.04
0.1
1 mA
≤ I
LOAD ≤ 0 mA
0.04
0.12
5 mA
≤ I
LOAD ≤ 1 mA
0.01
Min-V
IN
Minimum Operating Voltage
I
LOAD =5mA
1.5
1.8
V
N
Output Noise Voltage (Note 6)
0.1 Hz to 10 Hz
20
V
PP
10 Hz to 10 kHz
30
V
RMS
I
S
Supply Current
160
250
275
A
I
SS
Power-down Supply Current
V
IN = 12V
Enable = 0.4V
Enable = 0.2V
1
2
A
I
BIAS
Reference Pin Bias Current
(Note 7)
15
40
nA
V
H
Logic High Input Voltage
1.6
1.5
V
L
Logic Low Input Voltage
0.4
V
0.2
I
H
Logic High Input Current
7
15
A
I
L
Logic Low Input Current
0.1
A
I
SC
Short Circuit Current
V
OUT =0
15
mA
630
V
IN = 12V, VOUT =0
17
630
Hyst
Thermal Hysteresis
(Note 8)
40C
≤ T
A ≤ 125C
0.5
mV/V
V
OUT
Long Term Stability
(Note 9)
1000 hrs. @ 25C
100
ppm
Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see Electrical Characteristics. The
guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed
test conditions.
Note 2: Without PCB copper enhancements. The maximum power dissipation must be de-rated at elevated temperatures and is limited by TJMAX (maximum
junction temperature),
θJ-A (junction to ambient thermal resistance) and TA (ambient temperature). The maximum power dissipation at any temperature is: PDissMAX
=(TJMAX TA)/θJ-A up to the value listed in the Absolute Maximum Ratings.
Note 3: The human body model is a 100 pF capacitor discharged through a 1.5 k
resistor into each pin. The machine model is a 200 pF capacitor discharged
directly into each pin.
Note 4: Typical numbers are at 25C and represent the most likely parametric norm.
Note 5: Limits are 100% production tested at 25C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate National’s Averaging Outgoing Quality Level (AOQL).
Note 6: Output noise for 1.25V option. Noise is proportional to VOUT.
Note 7: Bias Current flows out of the Adjust pin.
Note 8: Thermal hysteresis is defined as the change in +25C output voltage before and after exposing the device to temperature extremes.
Note 9: Long term stability is change in VREF at 25C measured continuously during 1000 hrs.
LM4121
www.national.com
4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4121AI1.2MDA | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.25 V, UUC |
| LM4121AIADJMWA | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.216 V, UUC |
| LM5000-3MTCX/NOPB | 2.7 A SWITCHING REGULATOR, 840 kHz SWITCHING FREQ-MAX, PDSO16 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4121AI-4.1 | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold |
| LM4121AIM5-1.2 | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類(lèi)型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM4121AIM5-1.2/NOPB | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類(lèi)型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM4121AIM5-1.2/NOPB | 制造商:Texas Instruments 功能描述:, Voltage Reference Type:Series, Referen |
| LM4121AIM5-ADJ | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類(lèi)型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
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