參數(shù)資料
型號: LTC1867LCGN#TRPBF
廠商: Linear Technology
文件頁數(shù): 6/16頁
文件大?。?/td> 0K
描述: IC ADC 16BIT 8CH 175KSPS 16SSOP
標準包裝: 2,500
位數(shù): 16
采樣率(每秒): 175k
數(shù)據(jù)接口: MICROWIRE?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 2.7mW
電壓電源: 單電源
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 16-SSOP(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-SSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 8 個單端,單極;8 個單端,雙極;4 個差分,單極;4 個差分,雙極
配用: DC873A-ND - BOARD SAR ADC LTC1867L
DC806A-ND - BOARD SAR ADC LTC1867
LTC1863L/LTC1867L
14
1863l7lfc
APPLICATIONS INFORMATION
Figure 7. Example 2, CS/CONV Starts a Conversion With Short Active HIGH Pulse.
With CS/CONV Returning LOW Before the Conversion, the ADC Remains Powered Up
INPUT VOLTAGE (V)
OUTPUT
CODE
1863L7L F09
111...111
111...110
100...001
100...000
000...000
000...001
011...110
011...111
FS – 1LSB
0V
UNIPOLAR
ZERO
FS = 2.5V
1LSB = FS/2n
1LSB (LTC1863L) = 610μV
1LSB (LTC1867L) = 38.1μV
Figure 8. LTC1863L/LTC1867L Bipolar Transfer
Characteristics (Two’s Complement)
Figure 9. LTC1863L/LTC1867L Unipolar Transfer
Characteristics (Straight Binary)
S0
SD
0S
S1
COM UNI
SLP
MSB = D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
CS/CONV
SCK
SDI
SDO
(LTC1867)
Hi-Z
123456789
10
11
12
13
14
15
16
tCONV
D12
MSB = D15
D14
D13
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Hi-Z
1863L7L F07
tCONV
DON'T CARE
NOT NEEDED FOR LTC1863
tACQ
SDO
(LTC1863)
DON'T CARE
INPUT VOLTAGE (V)
0V
OUTPUT
CODE
(T
WO’S
COMPLEMENT)
–1
LSB
1863L7L F08
011...111
011...110
000...001
000...000
100...000
100...001
111...110
1
LSB
BIPOLAR
ZERO
111...111
FS/2 – 1LSB
–FS/2
FS = 2.5V
1LSB = FS/2n
1LSB (LTC1863L) = 610μV
1LSB (LTC1867L) = 38.1μV
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