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參數(shù)資料
| 型號： | LTC2400I |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | ADC |
| 英文描述： | 24-Bit uPower No Latency ADC in SO-8 |
| 中文描述： | 1-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SO-8 |
| 文件頁數(shù)： | 24/40頁 |
| 文件大小： | 455K |
| 代理商： | LTC2400I |
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24
LTC2400
V
REF
= 5V). This corresponds to a 0.3ppm shift in offset
and full-scale readings for every 1
of input source
resistance.
In addition to the input current spikes, the input ESD
protection diodes have a temperature dependent leakage
current. This leakage current, nominally 1nA (
±
10nA
max), results in a fixed offset shift of 10
μ
V for a 10k source
resistance.
Reference Current (V
REF
)
Similar to the analog input, the reference input has a
dynamic input current. This current has negligible effect
on the offset. However, the reference current at V
IN
= V
REF
is similar to the input current at full-scale. For large values
of reference capacitance (C
VREF
> 0.01
μ
F), the full-scale
error shift is 0.3ppm/
of external reference resistance
independent of the capacitance at V
REF
, see Figure 22. If
the capacitance tied to V
REF
is small (C
VREF
< 0.01
μ
F), an
input resistance of up to 20k (20pF parasitic capacitance
at V
REF
) may be tolerated, see Figure 23.
Unlike the analog input, the integral nonlinearity of the
device can be degraded with excessive external RC time
constants tied to the reference input. If the capacitance at
node V
REF
is small (C
VREF
< 0.01
μ
F), the reference input
can tolerate large external resistances without reduction
in INL, see Figure 24. If the external capacitance is large
(C
VREF
> 0.01
μ
F), the linearity will be degraded by
0.15ppm/
independent of capacitance at V
REF
, see
Figure 25.
APPLICATIO
S I
FOR
ATIO
U
W
U
U
RESISTANCE AT V
REF
(
)
0
0
F
100
200
300
400
500
600
200
400
600
800
2400 F22
1000
C
VREF
= 10
μ
F
C
VREF
= 0.01
μ
F
C
VREF
= 0.1
μ
F
V
CC
= 5V
V
REF
= 5V
V
IN
= 5V
T
A
= 25
°
C
C
VREF
= 1
μ
F
Figure 22. Full-Scale Error vs R
VREF
(Large C)
RESISTANCE AT V
REF
(
)
1
30
40
50
1k
2400 F23
20
10
10
100
100k
10k
0
–10
–20
F
V
CC
= 5V
V
REF
= 5V
V
IN
= 5V
T
A
= 25
°
C
C
VREF
= 100pF
C
VREF
= 1000pF
C
VREF
= 0.01
μ
F
C
VREF
= 0pF
Figure 23. Full-Scale Error vs R
VREF
(Small C)
RESISTANCE AT V
REF
(
)
1
–10
I
0
10
20
30
40
50
10
100
1k
10k
2400 F24
100k
V
CC
= 5V
V
REF
= 5V
T
A
= 25
°
C
C
VREF
= 0pF
C
VREF
= 100pF
C
VREF
= 1000pF
C
VREF
= 0.01
μ
F
Figure 24. INL Error vs R
VREF
(Small C)
R
SOURCE
(
)
0
–300
F
–250
–200
–150
–100
–50
0
200
400
600
800
2400 F21
1000
C
IN
= 0.01
μ
F
V
CC
= 5V
V
REF
= 5V
V
IN
= 5V
T
A
= 25
°
C
C
IN
= 0.1
μ
F
C
IN
= 1
μ
F
C
IN
= 10
μ
F
Figure 21. Full-Scale Error vs R
SOURCE
(Large C)
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| LTC2400IS8 | 功能描述:IC A/D CONV 24BIT MICRPWR 8-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端，單極 |
| LTC2400IS8#PBF | 功能描述:IC A/D CONV 24BIT MICRPWR 8-SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個單端，單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
| LTC2400IS8#PBF | 制造商:Linear Technology 功能描述:IC ADC 24BIT SOIC-8 制造商:Linear Technology 功能描述:IC, ADC, 24BIT, SOIC-8 |
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