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參數(shù)資料
| 型號： | LTC2453ITS8#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 16BIT DELTA SIG TSOT23-8 |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 60 |
| 數(shù)據(jù)接口： | I²C，串行 |
| 轉(zhuǎn)換器數(shù)目： | 2 |
| 功率耗散（最大）： | 4mW |
| 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： | SOT-23-8 薄型，TSOT-23-8 |
| 供應(yīng)商設(shè)備封裝： | TSOT-23-8 |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 1 個差分，雙極 |
| 配用： | DC1266A-A-ND - BOARD DELTA SIGMA ADC LTC2453 |
LTC2453
1
2453fc
DIFFERENTIAL INPUT VOLTAGE (V)
–3
INL
(LSB)
–0.5
0
0.5
0
2
2453 TA01b
–1.0
–1.5
–2.0
–2
–1
1
1.0
1.5
2.0
3
VCC = 3V
VREF+ = 3V
VREF– = 0V
TA = –45°C, 25°C, 90°C
TYPICAL APPLICATION
FEATURES
DESCRIPTION
Ultra-Tiny, Differential,
16-Bit
DS ADC With
I2C Interface
The LTC2453 is an ultra-tiny, fully differential, 16-bit,
analog-to-digital converter. The LTC2453 uses a single
2.7V to 5.5V supply and communicates through an I2C
interface.TheADCisavailableinan8-pin,3mm
×2mmDFN
package or 8-pin, 3mm
× 3mm TSOT package. It includes
an integrated oscillator that does not require any external
components.Itusesadelta-sigmamodulatorasaconverter
core and has no latency for multiplexed applications. The
LTC2453 includes a proprietary input sampling scheme
that reduces the average input sampling current several
orders of magnitude lower than conventional delta-sigma
converters. Additionally, due to its architecture, there is
negligible current leakage between the input pins.
The LTC2453 can sample at 60 conversions per second,
andduetotheverylargeoversamplingratio,hasex-tremely
relaxed antialiasing requirements. The LTC2453 includes
continuous internal offset and full-scale calibration algo-
rithms which are transparent to the user, ensuring accuracy
over time and over the operating temperature range. The
converter has external REF+ and REF– pins and the differen-
tial input voltage range can extend up to ±(VREF+ – VREF–).
Followingasingleconversion,theLTC2453canauto-matically
enter a sleep mode and reduce its power to less than 0.2A.
If the user reads the ADC once a second, the LTC2453 con-
sumes an average of less than 50W from a 2.7V supply.
■
±VCC Differential Input Range
■
16-Bit Resolution (Including Sign), No Missing Codes
■
2LSB Offset Error
■
4LSB Full-Scale Error
■
60 Conversions Per Second
■
Single Conversion Settling Time for Multiplexed
Applications
■
Single-Cycle Operation with Auto Shutdown
■
800A Supply Current
■
0.2A Sleep Current
■
Internal Oscillator—No External Components Required
■
2-Wire I2C Interface
■
Ultra-Tiny 8-Pin 3mm
× 2mm DFN
and TSOT23 Packages
APPLICATIONS
■
System Monitoring
■
Environmental Monitoring
■
Direct Temperature Measurements
■
Instrumentation
■
Industrial Process Control
■
Data Acquisition
■
Embedded ADC Upgrades
10k
R
SCL
2-WIRE I2C
INTERFACE
SDA
0.1F
10F
2.7V TO 5.5V
0.1F
IN+
REF+
VCC
REF– GND
IN–
LTC2453
2453 TA01
Integral Nonlinearity, VCC = 3V
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. No Latency
DS is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners. Protected by U.S. Patents
including 6208279, 6411242, 7088280, 7164378.
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