參數(shù)資料
型號： LM12434CIWMX
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 模擬信號調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, PDSO28
封裝： SOP-28
文件頁數(shù)： 16/80頁
文件大小： 1552K
代理商： LM12434CIWMX
50 Pin Descriptions
TABLE I LM12 L 438 Pin Description
Pin Number
Pin Name
Description
PLCC
SO
Pkg
1
7
DGND
Digital ground This is the device’s digital supply ground connection It should be connected
through a low resistance and low inductance ground return to the system power supply
2
8
IN0
These are the eight analog inputs to the multiplexer For each conversion to be performed the
3
9
IN1
active channels are selected according to the instruction RAM programming Any individual
4
10
IN2
channel can be selected for a single-ended conversion referenced to AGND or any pair of
5
11
IN3
channels whether adjacent or non adjacent can be selected as a fully differential input pairs
6
12
IN4
7
13
IN5
8
14
IN6
9
15
IN7
10
16
VREFa
Positive reference input The operating voltage range for this input is 1V s VREFa s VAa (See
Figures 3 and 4 ) In order to achieve 12-bit performance this pin should be by passed to AGND
at least with a parallel combination of a 10 mF and a 01 mF (ceramic) capacitor The capacitors
should be placed as close to the part as possible
11
17
VREFb
Negative reference input The operating voltage range for this input is 0 V s VREFb s VREFa
b
1V (See
Figures 3 and 4 ) In order to achieve 12-bit performance this pin should be bypassed
to AGND at least with a parallel combination of a 10 mF and a 01 mF (ceramic) capacitor The
capacitors should be placed as close to the part as possible
12
18
AGND
Analog ground This is the device’s analog supply ground connection It should be connected
through a low resistance and low inductance ground return to the system power supply
13
19
VAa
Analog supply This is the supply connection for the analog circuitry The device operating supply
voltage range is a30V to a55V Accuracy is guaranteed only if the VAa and VDa are
connected to the same potential In order to achieve 12-bit performance this pin should be
bypassed to AGND at least with a parallel combination of a 10 mF and a 01 mF (ceramic)
capacitor The capacitors should be placed as close to the part as possible
14
20
DGND
Digital ground See above definition
15
21
VDa
Digital supply This is the supply connection for the analog circuitry The device operating supply
16
22
voltage range is a30V to a55V The device accuracy is guaranteed only if the VAa and VDa
are connected to the same potential In order to achieve 12-bit performance this pin should be
by passed to DGND at least with a parallel combination of a 10 mF and a 01 mF (ceramic)
capacitor The capacitors should be placed as close to the part as possible
17
23
P5
P1 – P5 are the multi-function serial interface input or output pins that have different assignments
depending on the selected mode
Serial interface input
Standard
SCLK
8051
TXD
I2C
SCL
TMS320
DR
18
24
P4
Serial interface inputoutput
Standard
DO
8051
RXD
I2C
SDA
TMS320
DR
19
25
P3
Serial interface input
Standard
DI
8051
CS
I2C
SAD2
TMS320
DX
23
相關(guān)PDF資料
PDF描述
LM12L438CIWMX SPECIALTY ANALOG CIRCUIT, PDSO28
LM20323AMHX 6 A SWITCHING REGULATOR, 570 kHz SWITCHING FREQ-MAX, PDSO20
LM20323AMHE 6 A SWITCHING REGULATOR, 570 kHz SWITCHING FREQ-MAX, PDSO20
LM20323AMH 6 A SWITCHING REGULATOR, 570 kHz SWITCHING FREQ-MAX, PDSO20
LM22677QTJ-5.0 8.75 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PSSO7
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM12438CIV 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Sign Data Acquisition System with Serial I/O and Self-Calibration
LM12438CIWM 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Sign Data Acquisition System with Serial I/O and Self-Calibration
LM12454 制造商:未知廠家 制造商全稱:未知廠家 功能描述:General Purpose Controller Z84C15
LM12454_06 制造商:NSC 制造商全稱:National Semiconductor 功能描述:12-Bit + Sign Data Acquisition System with Self-Calibration
LM12454A WAF 制造商:Texas Instruments 功能描述:
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*