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參數(shù)資料
| 型號(hào)： | THS1408IPFBG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP48 |
| 封裝： | GREEN, PLASTIC, TQFP-48 |
| 文件頁數(shù)： | 25/28頁 |
| 文件大小： | 625K |
| 代理商： | THS1408IPFBG4 |
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THS1401
THS1403
THS1408
SLAS248D DECEMBER 1999 REVISED SEPTEMBER 2005
www.ti.com
6
ELECTRICAL CHARACTERISTICS (Cont.)
Over operating free-air temperature range, AVDD = DVDD = 3.3V, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Reference Voltage
Bandgap voltage, internal mode
1.425
1.5
1.575
V
Input impedance
40
k
Positive reference voltage, REF+
2.5
V
Negative reference voltage, REF
0.5
V
Reference difference,
REF, REF+ REF
2
V
Accuracy, internal reference
5%
Temperature coefficient
40
ppm/
°C
Voltage coefficient
200
ppm/V
Analog Inputs
Positive analog input, IN+
0
AVDD
V
Negative analog input, IN
0
AVDD
V
Analog input voltage difference
AIN = IN+ IN, VREF = REF+ REF
VREF
V
Input impedance
25
k
PGA range
0
7
dB
PGA step size
1
dB
PGA gain error
±0.25
dB
Digital Inputs
VIH
High-level digital input
2
V
VIL
Low-level digital input
0.8
V
Input capacitance
5
pF
Input current
±1
A
Digital Outputs
VOH
High-level digital output
IOH = 50 A
2.6
V
VOL
Low-level digital output
IOL = 50 A
0.4
V
IOZ
Output current, high impedance
±10
A
Clock Timing (CS low)
THS1401
0.1
1
MHz
fCLK
Clock frequency
THS1403
0.1
3
MHz
fCLK
Clock frequency
THS1408
0.1
8
MHz
td
Output delay time
25
ns
Latency
9.5
Cycles
This parameter is not production tested for Q- and M-suffix devices.
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