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參數(shù)資料
| 型號： | LM4040 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | SCSI+ Unshld SR 50Ckt |
| 中文描述： | 改進的、精密微功耗并聯(lián)型電壓基準，帶有多種反向擊穿電壓 |
| 文件頁數(shù)： | 25/39頁 |
| 文件大小： | 482K |
| 代理商： | LM4040 |
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APPLICATION INFORMATION
Start-Up Characteristics
1-Hz Rate
V
Z
LM4040
R
S
V
IN
Output Capacitor
The LM4040 does not require an output capacitor across cathode and anode for stability. However, if an output
bypass capacitor is desired, the LM4040 is designed to be stable with all capacitive loads.
SOT-23 Connections
There is a parasitic Schottky diode connected between pins 2 and 3 of the SOT-23 packaged device. Thus, pin 3
of the SOT-23 package must be left floating or connected to pin 2.
Use With ADCs or DACs
The LM4040x-41 is designed to be a cost-effective voltage reference as required in 12-bit data-acquisition
systems. For 12-bit systems operating from 5-V supplies such as the ADS7842 (see
Figure 8
), the LM4040x-41
(4.096 V) permits operation with an LSB of 1 mV.
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
1
2
3
4
5
6
7
V
REF
AIN0
AIN1
AIN2
AGND
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DGND
AIN3
V
ANA
2.2
μ
F
A1
A0
CLK
DB0
DB1
DB2
DB3
DB4
V
DIG
BUSY
WR
CS
RD
3.2-MHz Clock
BUSY Output
Write Input
Read Input
5-V Analog Supply
10
μ
F
+
+
+
0.1
μ
F
ADS7842
LM4040A-41
909
0 V to V
REF
5 V
LM4040
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
SLOS456I–JANUARY 2005–REVISED DECEMBER 2005
Figure 7. Test Circuit
Figure 8. Data-Acquisition Circuit With LM4040x-41
25
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| LM4041CEM3X-1.2 | Precision Micropower Shunt Voltage Reference |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM4040/1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Precision Micropower Shunt Voltage Reference |
| LM4040_05 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Precision Micropower Shunt Voltage Reference |
| LM4040_07 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE |
| LM4040_08 | 制造商:ZETEX 制造商全稱:ZETEX 功能描述:Precision micropower shunt voltage references |
| LM4040_10 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE |
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