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參數資料
| 型號： | TLC549CD |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8 |
| 封裝： | GREEN, PLASTIC, SOIC-8 |
| 文件頁數： | 14/18頁 |
| 文件大?。?/td> | 518K |
| 代理商： | TLC549CD |
TLC548C, TLC548I, TLC549C, TLC549I
8-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL
SLAS067C – NOVEMBER 1983 – REVISED SEPTEMBER 1996
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range,
VCC = Vref+ = 4.75 V to 5.5 V, fclock(I/O) = 2.048 MHz for TLC548 or 1.1 MHz for TLC549
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
High-level output voltage
VCC = 4.75 V, IOH = – 360 A
2.4
V
VOL
Low-level output voltage
VCC = 4.75 V, IOL = 3.2 mA
0.4
V
IOZ
High impedance off state output current
VO = VCC,
CS at VCC
10
A
IOZ
High-impedance off-state output current
VO = 0,
CS at VCC
–10
A
IIH
High-level input current, control inputs
VI = VCC
0.005
2.5
A
IIL
Low-level input current, control inputs
VI = 0
– 0.005
– 2.5
A
II( )
Analog channel on-state input current during sample
Analog input at VCC
0.4
1
A
II(on)
gg
cycle
Analog input at 0 V
– 0.4
–1
A
ICC
Operating supply current
CS at 0 V
1.8
2.5
mA
ICC + Iref
Supply and reference current
Vref+ = VCC
1.9
3
mA
Ci
Input capacitance
Analog inputs
7
55
pF
Ci
Input capacitance
Control inputs
5
15
pF
operating characteristics over recommended operating free-air temperature range,
VCC = Vref+ = 4.75 V to 5.5 V, fclock(I/O) = 2.048 MHz for TLC548 or 1.1 MHz for TLC549
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
TLC548
TLC549
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
EL
Linearity error
See Note 6
±0.5
LSB
EZS
Zero-scale error
See Note 7
±0.5
LSB
EFS
Full-scale error
See Note 7
±0.5
LSB
Total unadjusted error
See Note 8
±0.5
LSB
tconv
Conversion time
See Operating Sequence
8
17
12
17
s
Total access and conversion time
See Operating Sequence
12
22
19
25
s
ta
Channel acquisition time (sample cycle)
See Operating Sequence
4
I/O
clock
cycles
tv
Time output data remains
valid after I/O CLOCK
↓
10
ns
td
Delay time to data output valid
I/O CLOCK
↓
200
400
ns
ten
Output enable time
1.4
s
tdis
Output disable time
150
ns
tr(bus)
Data bus rise time
See Figure 1
300
ns
tf(bus)
Data bus fall time
300
ns
All typicals are at VCC = 5 V, TA = 25°C.
NOTES:
6. Linearity error is the deviation from the best straight line through the A/D transfer characteristics.
7. Zero-scale error is the difference between 00000000 and the converted output for zero input voltage; full-scale error is the difference
between 11111111 and the converted output for full-scale input voltage.
8. Total unadjusted error is the sum of linearity, zero-scale, and full-scale errors.
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| TLC549CDG4 | 功能描述:模數轉換器 - ADC 8-Bit 40kSPS Serial Out Lo-Pwr RoHS:否 制造商:Texas Instruments 通道數量: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 |
| TLC549CDR | 功能描述:模數轉換器 - ADC 8-Bit 40kSPS Serial Out Lo-Pwr RoHS:否 制造商:Texas Instruments 通道數量: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 |
| TLC549CDRG4 | 功能描述:模數轉換器 - ADC 8-Bit 40kSPS Serial Out Lo-Pwr RoHS:否 制造商:Texas Instruments 通道數量: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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| TLC549CPE4 | 功能描述:模數轉換器 - ADC 8-Bit 40kSPS Serial Out Lo-Pwr RoHS:否 制造商:Texas Instruments 通道數量: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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