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參數(shù)資料
型號(hào): LTC1290CISW#TRPBF
廠商: Linear Technology
文件頁(yè)數(shù): 19/32頁(yè)
文件大小: 0K
描述: IC DATA ACQ SYS 12BIT 20-SOIC
標(biāo)準(zhǔn)包裝: 1,000
類型: 數(shù)據(jù)采集系統(tǒng)(DAS),ADC
分辨率(位): 12 b
采樣率(每秒): 50k
數(shù)據(jù)接口: 串行,并聯(lián)
電壓電源: 雙 ±
電源電壓: ±5 V,5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 20-SOIC
包裝: 帶卷 (TR)
26
LTC1290
1290fe
A “Quick Look” Circuit for the LTC1290
Users can get a quick look at the function and timing of the
LTC1290 by using the following simple circuit. REF+ and
DIN are tied to VCC selecting a 5V input span, CH7 as a
single-ended input, unipolar mode, MSB-first format and
16-bit word length. ACLK and SCLK are tied together and
driven by an external clock. CS is driven at 1/128 the clock
rate by the CD4520 and DOUT outputs the data. All other
pins are tied to a ground plane. The output data from the
DOUT pin can be viewed on an oscilloscope which is set up
to trigger on the falling edge of CS.
U
S
A
O
PPLICATI
TYPICAL
A “Quick Look” Circuit for the LTC1290
1290 TA02
LTC1290
0.1
F
22
F
f
CHO
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
DGND
VIN
{
TO
OSCILLOSCOPE
CD4520
CLK
EN
Q1
Q2
Q3
Q4
RESET
VSS
VDD
RESET
Q4
Q3
Q2
Q1
EN
CLK
CLOCK IN
2MHz MAX
5V
VCC
ACLK
SCLK
DIN
DOUT
CS
REF+
REF
V
AGND
f/128
Scope Trace of LTC1290 “Quick Look” Circuit
Showing A/D Output of 010101010101 (555HEX)
D
OUT
CS
ACLK/
SCLK
MSB
(B11)
DEGLITCHER
TIME
LSB
(B0)
FILLS
ZEROS
VERTICAL: 5V/DIV
HORIZONTAL: 1
s/DIV
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