参数资料
型号: DC798B
厂商: Linear Technology
文件页数: 5/42页
文件大小: 0K
描述: BOARD DELTA SIGMA ADC LTC2480
软件下载: QuikEval System
设计资源: DC798B Design File
DC798B Schematic
标准包装: 1
系列: QuikEval™
ADC 的数量: 1
位数: 16
采样率(每秒): 7.5
数据接口: MICROWIRE?,串行,SPI?
已用 IC / 零件: LTC2480
已供物品:
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LTC2480
2480fd
TiMing DiagraMs
Timing Diagram Using Internal SCK
CS
SDO
SCK
SDI
t1
t3
t7
t8
SLEEP
tKQMAX
CONVERSION
DATA IN/OUT
tKQMIN
t2
2480 TD1
Timing Diagram Using External SCK
CS
SDO
SCK
SDI
t1
t5
t6
t4
t7
t8
SLEEP
tKQMAX
CONVERSION
DATA IN/OUT
tKQMIN
t2
2480 TD2
applicaTions inForMaTion
CONVERTER OPERATION
Converter Operation Cycle
The LTC2480 is a low power, delta-sigma analog-to-digi-
tal converter with an easy to use 4-wire serial interface
and automatic differential input current cancellation.
Its operation is made up of three states. The converter
operating cycle begins with the conversion, followed by
the low power sleep state and ends with the data output
(see Figure 1). The 4-wire interface consists of serial data
output (SDO), serial clock (SCK), chip select (CS) and
serial data input (SDI).
Initially, the LTC2480 performs a conversion. Once the
conversion is complete, the device enters the sleep state.
CONVERT
SLEEP
DATA OUTPUT
CONFIGURATION INPUT
2480 F01
TRUE
FALSE
CS = LOW
AND
SCK
Figure 1. LTC2480 State Transition Diagram
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