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參數(shù)資料
| 型號： | LTC2428C |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 16-Bit 2.5-V to 3.3-V/3.3-V To 5-V Level Shifting Transceiver With 3-State Outputs 56-BGA MICROSTAR JUNIOR -40 to 85 |
| 中文描述： | 4-/8-Channel 20位ADC的無延遲uPower |
| 文件頁數(shù)： | 27/28頁 |
| 文件大?。?/td> | 317K |
| 代理商： | LTC2428C |
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27
LTC2424/LTC2428
APPLICATIO
S I
FOR
ATIO
U
These infrared thermocouples are self-contained: 1) they
do not require external cold junction compensation; 2)
they cannot use conventional open thermocouple detec-
tion schemes; and 3) their output impedances are high,
approximately 3k
. Alternatively, conventional thermo-
couples can be connected directly to the LTC2428 (not
shown) and cold junction compensation can be provided
by an external temperature sensor connected to a different
channel (see the thermistor circuit on CH5) or by using the
LT1025, a monolithic cold-junction compensator IC.
The components connected to CH7 are used to sense
daylight or photodiode current with a resolution of 300pA.
In the figure, the photodiode is biased in photoconduc-
tive mode; however, the LTC2428 can accommodate
either photovoltaic or photoconductive configurations.
W
U
U
The photodiode chosen (Hammatsu S1336-5BK) pro-
duces an output of 500mA per watt of optical illumination.
The output of the photodiode is dependent on two factors:
active detector area (2.4mm 2.4mm) and illumination
intensity. With the 5k resistor, optical intensities up to
368W/m
2
at 960nM (direct sunlight is approximately
1000W/m
2
) can be measured by the LTC2428. With a
resolution of 1nA, the optical dynamic range covers 5
orders of magnitude.
The application circuits shown connected to the LTC2428
demonstrate the mix-and-match capabilities of this multi-
plexed-input, high resolution
Σ
ADC. Very low level
signals and high level signals can be accommodated with
a minimum of additional circuitry.
Dimensions in millimeters (inches) unless otherwise noted.
PACKAGE DESCRIPTIO
U
G Package
28-Lead Plastic SSOP (0.209)
(LTC DWG # 05-08-1640)
G28 SSOP 1098
0.13 – 0.22
(0.005 – 0.009)
0
°
– 8
°
0.55 – 0.95
(0.022 – 0.037)
5.20 – 5.38**
(0.205 – 0.212)
7.65 – 7.90
(0.301 – 0.311)
1
2
3
4
5
6
7
8
9 10 11 12
14
13
10.07 – 10.33*
(0.397 – 0.407)
22 21 20 19 18 17 16 15
23
24
25
26
27
28
1.73 – 1.99
(0.068 – 0.078)
0.05 – 0.21
(0.002 – 0.008)
0.65
(0.0256)
BSC
0.25 – 0.38
(0.010 – 0.015)
NOTE: DIMENSIONS ARE IN MILLIMETERS
DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.152mm (0.006") PER SIDE
DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.254mm (0.010") PER SIDE
*
**
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| LTC2428CG#PBF | 功能描述:IC ADC 20BIT 8CH MICROPWR 28SSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝: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 供應商設備封裝: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 |
| LTC2428CG#TR | 功能描述:IC ADC 20BIT 8CH MICROPWR 28SSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝: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） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端，單極 |
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| LTC2428CGPBF | 制造商:Linear Technology 功能描述:ADC,LTC2428C 20bit D-S 8 ch SPI SSOP |
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