参数资料
型号: LM4040A10IDBZRG4
厂商: Texas Instruments
文件页数: 27/58页
文件大小: 0K
描述: IC VREF SHUNT PREC 10V SOT-23-3
标准包装: 3,000
基准类型: 旁路,精度
输出电压: 10V
容差: ±0.1%
温度系数: 100ppm/°C
通道数: 1
电流 - 阴极: 125µA
电流 - 输出: 15mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: TO-236-3,SC-59,SOT-23-3
供应商设备封装: SOT-23-3
包装: 带卷 (TR)

LM4040
www.ti.com .................................................................................................................................................. SLOS456K – JANUARY 2005 – REVISED MARCH 2008
APPLICATION INFORMATION
Start-Up Characteristics
R S
V IN
LM4040
V Z
1-Hz Rate
Figure 7. Test Circuit
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.
ADS7842
5V
0 V to V REF
1 AIN0
2 AIN1
V ANA
V DIG
28
27
+
0.1 μ F
+
10 μ F
5-V Analog Supply
3 AIN2
A1 26
909
4 AIN3
A0 25
+
2.2 μ F
5 V REF
6 AGND
CLK 24
BUSY 23
3.2-MHz Clock
BUSY Output
LM4040A-41
7 DB11
8 DB10
9 DB9
WR
CS
RD
22
21
20
Write Input
Read Input
10 DB8
11 DB7
12 DB6
13 DB5
14 DGND
DB0 19
DB1 18
DB2 17
DB3 16
DB4 15
Figure 8. Data-Acquisition Circuit With LM4040x-41
Copyright ? 2005–2008, Texas Instruments Incorporated
27
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LM4040A10IDBZTG4 功能描述:基准电压& 基准电流 10-V Prec Micropower Shunt .1% accuracy 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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LM4040A10ILP 制造商:TI 制造商全称:Texas Instruments 功能描述:PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE