参数资料
型号: TLV2556MPWREPG4
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, TSSOP-20
文件页数: 19/37页
文件大小: 705K
代理商: TLV2556MPWREPG4
Access Cycle
Sample Cycle
MSB
DATA OUT
1
2
3
5
4
6
10
11
12
1
I/O CLOCK
MSB1 MSB2 MSB3 MSB4 MSB5
MSB8 MSB9 LSB+1
LSB
16
DATA IN
8
7
9
MSB6 MSB7
Low Level
MSB
D7
EOC
Initialize
Shift in New Multiplexer Address, Simultaneously
Shift Out Previous Conversion Result
Previous Conversion Data
Pad Zeros
Channel
Address
Output Data
Format
A/D Conversion Interval
tconv
DATA IN Can be Tied or Held High
CS
SLAS598A – NOVEMBER 2008 – REVISED JULY 2009 ................................................................................................................................................... www.ti.com
PARAMETER MEASUREMENT INFORMATION (continued)
A.
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 53. Timing for Default Mode Not Using CS: (16-Clock Transfer, MSB First, External Reference, Pin
19 = EOC, Input = AIN0)
To remove the device from default mode, CFGR2–D0 must be reset to 0. Valid sample/convert cycles can
resume on the cycle following the CFGR2 configuration.
26
Copyright 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TLV2556-EP
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