參數(shù)資料
型號(hào)： TL4050C82IDBZR
廠商： TEXAS INSTRUMENTS INC
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 8.192 V, PDSO3
封裝： SOT-23, 3 PIN
文件頁數(shù)： 16/42頁
文件大?。?/td> 669K
代理商： TL4050C82IDBZR
www.ti.com
APPLICATION INFORMATION
1-Hz Rate
VZ
TL4050
RS
VIN
Output Capacitor
SOT-23 Pin Connections
Use With ADCs or DACs
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
VREF
AIN0
AIN1
AIN2
AGND
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DGND
AIN3
VANA
2.2
F
A1
A0
CLK
DB0
DB1
DB2
DB3
DB4
VDIG
BUSY
WR
CS
RD
3.2-MHz Clock
BUSY Output
Write Input
Read Input
5-V Analog Supply
10
F
+
0.1
F
ADS7842
TL4050A-41
909
0 V to VREF
5 V
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
SLOS486 – JUNE 2007
Figure 1. Start-Up Test Circuit
The TL4050 does not require an output capacitor across cathode and anode for stability. However, if an output
bypass capacitor is desired, the TL4050 is designed to be stable with all capacitive loads.
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.
The TL4050x-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 2), the TL4050x-41
(4.096 V) permits operation with an LSB of 1 mV.
Figure 2. Data-Acquisition Circuit With TL4050x-41
23
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