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參數(shù)資料
| 型號(hào)： | LTC1290BCSW |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | ADC |
| 英文描述： | Single Chip 12-Bit Data Acquisition System |
| 中文描述： | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| 封裝： | 0.300 INCH, PLASTIC, SOP-20 |
| 文件頁(yè)數(shù)： | 26/28頁(yè) |
| 文件大?。?/td> | 381K |
| 代理商： | LTC1290BCSW |
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26
LTC 1290
U
S
A
O
PPLICATI
SNEAK-A-BIT Code
TYPICAL
SNEAK-A-BIT Code for the LTC1290 Using the MC68HC05C4
MNEMONIC
DESCRIPTION
READ –/+:
LDA
JSR
LDA
STA
LDA
STA
RTS
LDA
JSR
LDA
STA
LDA
STA
RTS
#$3F
TRANSFER
$60
$71
$61
$72
Load D
IN
Word for LTC1290 into ACC
Read LTC1290 Routine
Load MSBs from LTC1290 into ACC
Store MSBs in $71
Load LSBs from LTC1290 into ACC
Store LSBs in $72
Return
Load D
IN
Word for LTC1290 into ACC
Read LTC1290 Routine
Load MSBs from LTC1290 into ACC
Store MSBs in $73
Load LSBs from LTC1290 into ACC
Store LSBs in $74
Return
CS Goes Low
Load D
IN
into SPI, Start Transfer
Test Status of SPIF
Loop to Previous Instruction if Not Done
Load Contents of SPI Data Reg. into ACC
Start Next Cycle
Store MSBs in $60
Test Status of SPIF
Loop to Previous Instruction if Not Done
CS Goes High
Load Contents of SPI Data Reg. into ACC
Store LSBs in $61
Return
Load MSBs of
±
Read into ACC
Or ACC (MSBs) with LSBs of
±
Read
If Result is 0 Go to Minus
Clear Carry
Rotate Right $73 Through Carry
Rotate Right $74 Through Carry
Load MSBs of
±
Read into ACC
Store MSBs in RAM Location $77
Load LSBs of
±
Read into ACC
Store LSBs in RAM Location $87
Go to End of Routine
Clear Carry
Shift MSBs of
±
Read Right
Shift LSBs of
±
Read Right
1’s Complement of MSBs
1’s Complement of LSBs
Load LSBs into ACC
Add 1 to LSBs
Store ACC in $72
Clear ACC
Add with Carry to MSBs. Result in ACC
Store ACC in $71
Store MSBs in RAM Location $77
Load LSBs in ACC
Store LSBs in RAM Location $87
Return
READ +/–:
#$7F
TRANSFER
$60
$73
$61
$74
TRANSFER: BCLR 0,$02
STA
TST
BPL
LDA
STA
STA
TST
BPL
BSET 0,$02
LDA
STA
RTS
LDA
ORA $74
BEQ MINUS
CLC
ROR $73
ROR $74
LDA
$73
STA
$77
LDA
$74
STA
$87
BRA END
CLC
ROR $71
ROR $72
COM $71
COM $72
LDA
$72
ADD #$01
STA
$72
CLRA
ADC $71
STA
$71
STA
$77
LDA
$72
STA
$87
RTS
$0C
$0B
LOOP 1
$0C
$0C
$60
$0B
LOOP 2
LOOP 1:
LOOP 2:
$0C
$61
CHK SIGN:
$73
MINUS:
END:
D
OUT
from LTC1290 in MC68HC05C4 RAM
D
IN
Words for LTC1290
Sign
LSB
B0
MUX Addr.
(ODD/SIGN)
UNI
MSBF
Word
Length
D
IN1
0
0
1
1
1
1
1
1
D
IN2
0
1
1
1
1
1
1
1
D
IN3
0
0
1
1
1
1
1
1
1290 TA06
LOCATION $77
B12
B11
B10
B9
B8
B7
B6
B5
LOCATION $87
B4
B3
B2
B1
Filled with 0s
SNEAK-A-BIT Code for the LTC1290 Using the MC68HC05C4
MNEMONIC
LDA
#$50
Configuration Data for SPCR
STA
$0A
Load Configuration Data into $0A
LDA
#$FF
Configuration Data for Port C DDR
STA
$06
Load Configuration Data into Port C DDR
BSET
0,$02
Make Sure CS is High
JSR
READ –/+
Dummy Read Configures LTC1290
for next read
JSR
READ –/+
Read CH6 with Respect to CH7
JSR
READ –/+
Read CH7 with Respect to CH6
JSR
CHK Sign
Determines which Reading has Valid Data,
Converts to 2’s Complement and
Stores in RAM
DESCRIPTION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1290BI | Single Chip 12-Bit Data Acquisition System |
| LTC1290BIN | Single Chip 12-Bit Data Acquisition System |
| LTC1290BISW | Single Chip 12-Bit Data Acquisition System |
| LTC1290BM | Single Chip 12-Bit Data Acquisition System |
| LTC1290BMJ | Single Chip 12-Bit Data Acquisition System |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1290BCSW#PBF | 功能描述:IC DATA ACQ SYS 12BIT 20-SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| LTC1290BCSW#TR | 功能描述:IC DATA ACQ SYS 12BIT 5V 20SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| LTC1290BCSW#TRPBF | 功能描述:IC DATA ACQ SYS 12BIT 20-SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| LTC1290BIN | 功能描述:IC DATA ACQ SYS 12BIT 20-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| LTC1290BIN#PBF | 功能描述:IC DATA ACQ SYS 12BIT 20-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
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