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| 型号： | DC1266A-A |
| 厂商： | Linear Technology |
| 文件页数： | 1/18页 |
| 文件大小： | 0K |
| 描述： | BOARD DELTA SIGMA ADC LTC2453 |
| 软件下载： | QuikEval System |
| 设计资源： | DC1266A Design File DC1266A Schematic |
| 标准包装： | 1 |
| 系列： | QuikEval™ |
| ADC 的数量： | 2 |
| 位数： | 16 |
| 采样率（每秒）： | 60 |
| 数据接口： | I²C，串行 |
| 输入范围： | ±VREF |
| 已用 IC / 零件： | LTC2453 |
| 已供物品： | 板 |
| 相关产品： | LTC2453ITS8#TRPBF-ND - IC ADC 16BIT DELTA SIG TSOT23-8 LTC2453ITS8#TRMPBFTR-ND - IC ADC 16BIT DELTA SIG TSOT23-8 LTC2453CTS8#TRPBF-ND - IC ADC 16BIT DELTA SIG TSOT23-8 LTC2453CTS8#TRMPBFTR-ND - IC ADC 16BIT DELTA SIG TSOT23-8 LTC2453IDDB#TRPBF-ND - IC ADC 16BIT DELTA SIG 8-DFN LTC2453IDDB#TRMPBFTR-ND - IC ADC 16BIT DELTA SIG 8-DFN LTC2453CDDB#TRPBF-ND - IC ADC 16BIT DELTA SIG 8-DFN LTC2453CDDB#TRMPBFTR-ND - IC ADC 16BIT DELTA SIG 8-DFN |
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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