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参数资料
| 型号： | LM4121AIADJMWA |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.216 V, UUC |
| 封装： | WAFER |
| 文件页数： | 14/19页 |
| 文件大小： | 490K |
| 代理商： | LM4121AIADJMWA |
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
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| LM4121AIM5-1.2 | 功能描述:基准电压& 基准电流 RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| LM4121AIM5-1.2/NOPB | 功能描述:基准电压& 基准电流 RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
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| LM4121AIM5-ADJ | 功能描述:基准电压& 基准电流 RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| LM4121AIM5-ADJ/NOPB | 功能描述:基准电压& 基准电流 RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
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