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參數資料
| 型號： | DC1082A-F |
| 廠商： | Linear Technology |
| 文件頁數： | 1/18頁 |
| 文件大小： | 0K |
| 描述： | BOARD SAR ADC LTC2355-14 |
| 軟件下載： | QuikEval II System |
| 設計資源： | DC1082A Design File DC1082A Schematic |
| 標準包裝： | 1 |
| 系列： | QuikEval-II™ |
| ADC 的數量： | 1 |
| 位數： | 14 |
| 采樣率（每秒）： | 3M |
| 數據接口： | 串行，SPI? |
| 輸入范圍： | 0 ~ 2.5 V |
| 已用 IC / 零件： | LTC2355-14 |
| 已供物品： | 板 |
| 相關產品： | LTC2355IMSE-14#TRPBF-ND - IC ADC 14BIT 3.5MSPS 10-MSOP LTC2355CMSE-14#TRPBF-ND - IC ADC 14BIT 3.5MSPS 10-MSOP LTC2355CMSE-12#TRPBF-ND - IC ADC 12BIT 3.5MSPS 10-MSOP LTC2355IMSE-12#TRPBF-ND - IC ADC 12BIT 3.5MSPS 10-MSOP LTC2355IMSE-14#PBF-ND - IC ADC 14BIT 3.5MSPS 10-MSOP LTC2355IMSE-12#PBF-ND - IC ADC 12BIT 3.5MSPS 10-MSOP LTC2355CMSE-14#PBF-ND - IC ADC 14BIT 3.5MSPS 10-MSOP LTC2355CMSE-12#PBF-ND - IC ADC 12BIT 3.5MSPS 10-MSOP |
LTC2355-12/LTC2355-14
2355fa
Block Diagram
Features
applications
Description
Serial 12-Bit/14-Bit, 3.5Msps
Sampling ADCs with Shutdown
The LTC2355-12/LTC2355-14 are 12-bit/14-bit, 3.5Msps
serial ADCs with differential inputs. The devices draw
only 5.5mA from a single 3.3V supply and come in a
tiny 10-lead MSOP package. A Sleep shutdown feature
further reduces power consumption to 13W. The com-
bination of speed, low power and tiny package makes the
LTC2355-12/LTC2355-14suitableforhighspeed,portable
applications.
The80dBcommonmoderejectionallowsuserstoeliminate
ground loops and common mode noise by measuring
signals differentially from the source.
Thedevicesconvert0Vto2.5Vunipolarinputsdifferentially.
The absolute voltage swing for AIN+ and AIN– extends from
ground to the supply voltage.
Theserialinterfacesendsouttheconversionresultsduring
the 16 clock cycles following a CONV rising edge for com-
patibility with standard serial interfaces. If two additional
clock cycles for acquisition time are allowed after the data
stream in between conversions, the full sampling rate of
3.5Msps can be achieved with a 63MHz clock.
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
n
3.5Msps Conversion Rate
n
74.2dB SINAD at 14-Bits, 71.1dB SINAD at 12-Bits
n
Low Power Dissipation: 18mW
n
3.3V Single Supply Operation
n
2.5V Internal Bandgap Reference can be Overdriven
n
3-Wire SPI-Compatible Serial Interface
n
Sleep (13W) Shutdown Mode
n
Nap (4mW) Shutdown Mode
n
80dB Common Mode Rejection
n
0V to 2.5V Unipolar Input Range
n
Tiny 10-Lead MSOP Package
n
Communications
n
Data Acquisition Systems
n
Uninterrupted Power Supplies
n
Multiphase Motor Control
n
Multiplexed Data Acquisition
n
RFID
THD, 2nd, 3rd and SFDR
vs Input Frequency
–
+
1
2
7
3
4
S & H
GND
EXPOSED PAD
LTC2355-14
VREF
10F
AIN–
AIN+
14-BIT ADC
3.3V
10F
14
14-BIT
LA
TCH
8
10
9
THREE-
STATE
SERIAL
OUTPUT
PORT
2.5V
REFERENCE
TIMING
LOGIC
VDD
SDO
CONV
SCK
2355 TA01
5
6
11
FREQUENCY (MHz)
0.1
–80
THD,
2nd,
3rd
(dB) –74
–68
–62
–56
1
10
100
2355 G02
–86
–92
–98
–104
–110
–50
THD
2nd
3rd
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