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參數(shù)資料
| 型號： | LTC1403IMSE-1#TR |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 1/22頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 12BIT 2.8MSPS DIFF 10MSOP |
| 標準包裝： | 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： | -40°C ~ 85°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 |
| 供應商設備封裝： | 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 |
LTC1403-1/LTC1403A-1
1
14031fc
BLOCK DIAGRAM
FEATURES
DESCRIPTION
Serial 12-Bit/14-Bit, 2.8Msps
Sampling ADCs with Shutdown
APPLICATIONS
n
2.8Msps Conversion Rate
n
Low Power Dissipation: 14mW
n
3V Single Supply Operation
n
2.5V Internal Bandgap Reference can be Overdriven
n
3-Wire Serial Interface
n
Sleep (10W) Shutdown Mode
n
Nap (3mW) Shutdown Mode
n
80dB Common Mode Rejection
n
±1.25V Bipolar Input Range
n
Tiny 10-Lead MSE Package
n
Communications
n
Data Acquisition Systems
n
Uninterrupted Power Supplies
n
Multiphase Motor Control
n
Multiplexed Data Acquisition
The LTC1403-1/LTC1403A-1 are 12-bit/14-bit, 2.8Msps
serial ADCs with differential inputs. The devices draw only
4.7mA from a single 3V supply and come in a tiny 10-lead
MSE package. A Sleep shutdown feature lowers power
consumption to 10W. The combination of speed, low
powerandtinypackagemakestheLTC1403-1/LTC1403A-1
suitable for high speed, portable applications.
The 80dB common mode rejection allows users to elimi-
nate ground loops and common mode noise by measuring
signals differentially from the source.
The devices convert –1.25V to 1.25V bipolar inputs
differentially. The absolute voltage swing for AIN+ and
AIN– extends from ground to the supply voltage.
Theserialinterfacesendsouttheconversionresultsduring
the16clockcyclesfollowingCONV↑forcompatibilitywith
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 2.8Msps
can be achieved with a 50.4MHz clock.
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners.
14031 TA01a
–
+
1
2
7
3
4
S & H
GND
EXPOSED PAD
LTC1403A-1
VREF
10F
AIN–
AIN+
14-BIT ADC
3V
10F
14
14-BIT
LA
TCH
8
10
9
THREE-
STATE
SERIAL
OUTPUT
PORT
2.5V
REFERENCE
TIMING
LOGIC
VDD
SDO
CONV
SCK
5
6
11
THD, 2nd and 3rd vs Input
Frequency for Differential Input
Signals
FREQUENCY (MHz)
0.1
–80
THD,
2nd,
3rd
(dB)
–74
–68
–62
–56
1
10
100
14031 TA01b
–86
–92
–98
–104
–50
–44
THD
3rd
2nd
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