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參數(shù)資料
| 型號： | LTC1403CMSE#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 12BIT 2.8MSPS DIFF 10MSOP |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 2.8M |
| 數(shù)據(jù)接口： | 串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 12mW |
| 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： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 10-MSOP 裸露焊盤 |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 2 個單端，單極；1 個差分，單極 |
| 配用： | DC1082A-D-ND - BOARD SAR ADC LTC1403A DC1082A-C-ND - BOARD SAR ADC LTC1403A-1 |
LTC1403/LTC1403A
11
1403fb
APPLICATIONS INFORMATION
INPUT SPAN VERSUS REFERENCE VOLTAGE
The differential input range has a unipolar voltage span that
equals the difference between the voltage at the reference
buffer output VREF at Pin 3, and the voltage at the ground
(Exposed Pad Ground). The differential input range of
the ADC is 0V to 2.5V when using the internal reference.
The internal ADC is referenced to these two nodes. This
relationship also holds true with an external reference.
DIFFERENTIAL INPUTS
The LTC1403/LTC1403A has a unique differential sample-
and-hold circuit that allows inputs from ground to VDD.
The ADC will always convert the unipolar difference of
AIN+ – AIN–, independent of the common mode voltage
at the inputs. The common mode rejection holds up at
extremely high frequencies, see Figure 3. The only require-
ment is that both inputs not go below ground or exceed
VDD. Integral nonlinearity errors (INL) and differential
nonlinearity errors (DNL) are largely independent of the
common mode voltage. However, the offset error will vary.
The change in offset error is typically less than 0.1% of
the common mode voltage.
Figure 4 shows the ideal input/output characteristics for
the LTC1403/LTC1403A. The code transitions occur mid-
way between successive integer LSB values (i.e., 0.5LSB,
1.5LSB, 2.5LSB, FS – 1.5LSB). The output code is natural
binary with 1LSB = 2.5V/16384 = 153μV for the LTC1403A,
and 1LSB = 2.5V/4096 = 610μV for the LTC1403. The
LTC1403A has 1LSB RMS of random white noise.
Figure 3
Figure 4
FREQUENCY (Hz)
100
CMRR
(dB)
0
–20
–40
–60
–80
–100
–120
1k
10k
100k
1M
1403A F03
10M
100M
CMRR vs Frequency
INPUT VOLTAGE (V)
UNIPOLAR
OUTPUT
CODE
1403A F05
111...111
111...110
111...101
000...000
000...001
000...010
FS – 1LSB
0
LTC1403/LTC1403A Transfer
Characteristic
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| MS27468E13B35SA | CONN RCPT 22POS JAM NUT W/SCKT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| LTC1403HMSE#PBF | 功能描述:IC ADC 12BIT 2.8MSPS DIFF 10MSOP 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:1,000 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 |
| LTC1403HMSE#TRPBF | 功能描述:IC ADC 12BIT 2.8MSPS DIFF 10MSOP 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:1,000 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 |
| LTC1403IMSE | 功能描述:IC ADC 12BIT 2.8MSPS DIFF 10MSOP 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 |
| LTC1403IMSE#PBF | 功能描述:IC ADC 12BIT 2.8MSPS 10-MSOP 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 |
| LTC1403IMSE#TR | 功能描述:IC ADC 12BIT 2.8MSPS DIFF 10MSOP 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 |
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