参数资料
型号: TLV2553IDWRQ1
厂商: TEXAS INSTRUMENTS INC
元件分类: ADC
英文描述: 11-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封装: GREEN, PLASTIC, SOIC-20
文件页数: 9/28页
文件大小: 414K
代理商: TLV2553IDWRQ1
1
2
3
5
4
6
10
11
12
1
MSB1 MSB2 MSB3 MSB4 MSB5
MSB8 MSB9 LSB+1
LSB
HiZ State
2
3
D6
D5
D4
D3
D2
D1
D0
D6
D5
D7
8
7
9
MSB6 MSB7
D7
Previous Conversion Data
MSB
MSB2
MSB1
Shift in New Multiplexer Address,
Simultaneously Shift Out Previous Conversion Result
Access
Cycle
Sample Cycle
Channel
Address
A/D Conversion Interval
Output Data
Format
tCONV
CS
I/O
CLOCK
DATA
OUT
DATA
IN
EOC
Initialize
MSB
1
2
3
5
4
6
10
11
12
1
MSB1 MSB2 MSB3 MSB4 MSB5
MSB8 MSB9 LSB+1
LSB
2
3
D6
D5
8
7
9
MSB6 MSB7
D7
Low Level
MSB
D6
D5
D4
D3
D2
D1
D0
D7
MSB2
MSB1
Shift in New Multiplexer Address,
Simultaneously Shift Out Previous Conversion Result
Access
Cycle
Sample Cycle
Channel
Address
A/D Conversion Interval
Output Data
Format
tCONV
Previous Conversion Data
CS
I/O
CLOCK
DATA
OUT
DATA IN
EOC
Initialize
www.ti.com ..................................................................................................................................................................................................... SLAS579 – APRIL 2009
Parameter Measurement Information (continued)
Figure 33. Timing for 12-Clock Transfer Using CS With DATA OUT Set for MSB First
NOTE: To minimize errors caused by noise at CS, the internal circuitry waits for a setup time after the CS falling edge before
responding to control input signals. Therefore, no attempt should be made to clock in an address until the minimum
CS setup time has elapsed.
Figure 34. Timing for 12-Clock Transfer Not Using CS With DATA OUT Set for MSB First
Copyright 2009, Texas Instruments Incorporated
17
Product Folder Link(s): TLV2553-Q1
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TLV2556IDWRG4 11-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
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