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參數(shù)資料
| 型號： | DC1082A-C |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 3/20頁 |
| 文件大小： | 0K |
| 描述： | BOARD SAR ADC LTC1403A-1 |
| 軟件下載： | QuikEval II System |
| 設(shè)計資源： | DC1082A Design File DC1082A Schematic |
| 標準包裝： | 1 |
| 系列： | QuikEval-II™ |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 14 |
| 采樣率（每秒）： | 3M |
| 數(shù)據(jù)接口： | 串行，SPI? |
| 輸入范圍： | ±1.25 V |
| 已用 IC / 零件： | LTC1403-1 |
| 已供物品： | 板 |
| 相關(guān)產(chǎn)品： | LTC1403HMSE#TRPBF-ND - IC ADC 12BIT 2.8MSPS DIFF 10MSOP LTC1403HMSE#PBF-ND - IC ADC 12BIT 2.8MSPS DIFF 10MSOP LTC1403AHMSE#TRPBF-ND - IC ADC 14BIT 2.8MSPS DIFF 10MSOP LTC1403AHMSE#PBF-ND - IC ADC 14BIT 2.8MSPS DIFF 10MSOP LTC1403ACMSE#PBF-ND - IC ADC 14BIT 2.8MSPS 10-MSOP LTC1403AIMSE-1#PBF-ND - IC ADC 14BIT 2.8MSPS 10-MSOP LTC1403ACMSE-1#PBF-ND - IC ADC 14BIT 2.8MSPS 10-MSOP LTC1403CMSE#PBF-ND - IC ADC 12BIT 2.8MSPS 10-MSOP LTC1403AIMSE#PBF-ND - IC ADC 14BIT 2.8MSPS 10-MSOP LTC1403IMSE#PBF-ND - IC ADC 12BIT 2.8MSPS 10-MSOP 更多... |
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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| DC1082A-D | 功能描述:BOARD SAR ADC LTC1403A RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:QuikEval-II™ 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標準）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| DC1082A-E | 功能描述:BOARD SAR ADC LTC2356-14 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:QuikEval-II™ 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標準）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| DC1082A-F | 功能描述:BOARD SAR ADC LTC2355-14 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:QuikEval-II™ 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標準）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| DC1083A-A | 功能描述:BOARD DEMO LTM4603 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:µModule® 標準包裝:1 系列:- 主要目的:DC/DC，步降 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:3.3V 電流 - 輸出:3A 輸入電壓:4.5 V ~ 28 V 穩(wěn)壓器拓撲結(jié)構(gòu):降壓 頻率 - 開關(guān):250kHz 板類型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名稱:497-12113STEVAL-ISA094V1-ND |
| DC1083A-B | 功能描述:BOARD DEMO LTM4603HV RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:µModule® 標準包裝:1 系列:- 主要目的:DC/DC，步降 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:3.3V 電流 - 輸出:3A 輸入電壓:4.5 V ~ 28 V 穩(wěn)壓器拓撲結(jié)構(gòu):降壓 頻率 - 開關(guān):250kHz 板類型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名稱:497-12113STEVAL-ISA094V1-ND |
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