OVDD 237618 F15a CONVERT IRQ DATA IN DIGITAL HOST CLK CNV LTC2376" />
參數資料
型號: LTC2376CMS-18#TRPBF
廠商: Linear Technology
文件頁數: 10/24頁
文件大?。?/td> 0K
描述: IC ADC 18BIT 250KSPS 16-MSOP
產品培訓模塊: LTC2379- 18-/16-bit Fully-Differential SAR ADC Family Overview
標準包裝: 2,500
位數: 18
采樣率(每秒): 250k
數據接口: 串行,SPI?
轉換器數目: 1
功率耗散(最大): 4.25mW
電壓電源: 模擬和數字
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 16-TFSOP(0.118",3.00mm 寬)
供應商設備封裝: 16-MSOP
包裝: 帶卷 (TR)
輸入數目和類型: 1 個差分,雙極
配用: DC1783A-H-ND - BOARD SAR ADC LTC2376-18
DC1783A-D-ND - BOARD SAR ADC LTC2376-16
LTC2376-18
18
237618f
TIMING DIAGRAMS
OVDD
237618 F15a
CONVERT
IRQ
DATA IN
DIGITAL HOST
CLK
CNV
LTC2376-18
BUSY
SDO
B
SCK
RDL/SDI
CNV
LTC2376-18
SDO
A
SCK
RDL/SDI
CHAIN
OVDD
CHAIN
Chain Mode, Multiple Devices
When CHAIN = OVDD, the LTC2376-18 operates in chain
mode. In chain mode, SDO is always enabled and RDL/SDI
serves as the serial data input pin (SDI) where daisy-chain
data output from another ADC can be input.
This is useful for applications where hardware constraints
may limit the number of lines needed to interface to a large
number of converters. Figure 15 shows an example with
two daisy-chained devices. The MSB of converter A will
appear at SDO of converter B after 18 SCK cycles. The
MSB of converter A is clocked in at the SDI/RDL pin of
converter B on the rising edge of the first SCK.
237618 F15
D0A
D1A
D16A
D17A
D15B
D16B
D17B
SDOB
SDOA = RDL/SDIB
RDL/SDIA = 0
D0B
D1B
D15A
D16A
D17A
D0A
D1A
1
2
3
16
17
181920
3435
36
tDSDOBUSYL
tSSDISCK
tHSDISCK
tBUSYLH
tCONV
tHOLD
tHSDO
tDSDO
tSCKL
tSCKH
tSCKCH
tCNVL
tCYC
CONVERT
SCK
CNV
BUSY
CHAIN = OVDD
tQUIET
POWER-DOWN
ACQUIRE
Figure 15. Chain Mode Timing Diagram
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