參數(shù)資料
型號: TLC3544CDWR
廠商: Texas Instruments, Inc.
英文描述: 5-V ANALOG, 3-/5-V DIGITAL, 14-BIT, 200-KSPS, 4-/8-CHANNELS SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH 0-5 V (PSEUDODIFFERENTIAL) INPUTS
中文描述: 5 - V模擬,3-/5-V數(shù)字,14位,200 kSPS的,4-/8-CHANNELS串行模數(shù)位0-5五(擬微分)輸入變換器
文件頁數(shù): 11/40頁
文件大?。?/td> 790K
代理商: TLC3544CDWR
TLC3544, TLC3548
5-V ANALOG, 3-/5-V DIGITAL, 14-BIT 200-KSPS, 4-/8-CHANNELS SERIAL
ANALOG-TO-DIGITAL CONVERTERS WITH 0-5 V (PSEUDODIFFERENTIAL) INPUTS
SLAS266C
OCTOBER 2000
REVISED MAY 2003
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range, AV
DD
= 5 V,
DV
DD
= 5 V, V
REFP
= 5 V, V
REFM
= 0 V, SCLK frequency = 25 MHz (unless otherwise noted) (continued)
CS trigger
PARAMETERS
MIN
TYP
MAX
UNIT
tsu(2)
td(4)
tw(2)
Setup time, CS falling edge before SCLK rising edge, at 25-pF load
Delay time, delay time from 16th SCLK falling edge to CS rising edge, at 25-pF load
12
ns
5
ns
Pulse width, CS high time at 25-pF load
1
tc(1)
td(5)
Delay time, delay from CS falling edge to MSB of SDO valid (reaches 90%
final level), at 10-pF load
DVDD = 5 V
DVDD = 2.7 V
0
12
30
ns
0
td(6)
Delay time, delay from CS rising edge to SDO 3-state, at 10-pF load
0
6
ns
td(7)
Delay time delay from CS falling edge to INT rising edge at 10 pF load
Delay time, delay from CS falling edge to INT rising edge, at 10-pF load
DVDD = 5 V
DVDD = 2.7 V
0
0
6
ns
16
Specified by design
For normal short sampling, td(4) is the delay time from 16th SCLK falling edge to CS rising edge.
For normal long sampling, td(4) is the delay time from 48th SCLK falling edge to CS rising edge.
Hi-Z
ID15
OD1
OD0
ID1
1
16
OD15
Don
t Care
ID0
OR
tsu(2)
td(4)
tw(2)
td(7)
td(5)
Hi-Z
Hi-Z
Don
t Care
VIH
VIL
CS
SCLK
SDI
SDO
EOC
INT
td(6)
Don
t Care
OD7
OD15
NOTE A:
The dotted line means signal may or may not exist, depending on application. It must be ignored.
Normal sampling mode, CS initiates the conversion, FS must be tied to high. When CS is high, SDO is in Hi-Z, all inputs (FS, SCLK,
SDI) are inactive and are ignored. Parts with date code earlier than 13XXXXX have these discrepancies:
(Date code is a 7 digit code next to the TI where the first digit indicates the year and the second digit is the month of production. 13,
in this case, is 2001 and the month of March.)
FS is not ignored even if the device is in microcontroller mode (CS triggered).
FS must be tied to DVDD.
Figure 2. Critical Timing for CS Trigger
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TLC3544CPWG4 功能描述:模數(shù)轉換器 - ADC 14-bit 5V 200KSPS 4-Channel Unipolar RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
TLC3544CPWR 功能描述:模數(shù)轉換器 - ADC 14-bit 5V 200KSPS 4-Channel Unipolar RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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