參數資料
型號: THS1401PFB
廠商: Texas Instruments, Inc.
英文描述: Labels; External Height:2.75"; External Width:1."; Label Material:Polyester
中文描述: 14位,1/3/8 MSPS的數字信號處理器兼容模擬到數字的,具有內部參考和PGA變換器
文件頁數: 5/22頁
文件大小: 312K
代理商: THS1401PFB
THS1401, THS1403, THS1408
14-BIT, 1/3/8 MSPS DSP COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS
WITH INTERNAL REFERENCE AND PGA
SLAS248 – DECEMBER 1999
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics (continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Reference Voltage
VBG
Bandgap voltage, internal mode
1.425
1.5
1.575
V
k
V
Input impedance
40
Positive reference voltage, REF+
2.5
Negative reference voltage, REF–
Reference difference,
REF, REF+ – REF–
Accuracy, internal reference
0.5
V
2
V
5%
Temperature coefficient
40
ppm/
°
C
ppm/V
Voltage coefficient
200
Analog Inputs
Positive analog input, IN+
0
AVDD
AVDD
Vref
V
Negative analog input, IN–
0
V
Analog input voltage difference
Ain = IN+ – IN–, Vref = REF+ – REF–
–Vref
V
k
dB
Input impedance
25
PGA range
0
7
PGA step size
1
dB
PGA gain error
±
0.25
dB
Digital Inputs
VIH
VIL
High-level digital input
2
V
Low-level digital input
0.8
V
Input capacitance
5
pF
μ
A
Input current
±
1
Digital Outputs
VOH
VOL
IOZ
Clock Timing (CS low)
High-level digital output
IOH = 50
μ
A
IOL = 50
μ
A
2.6
V
Low-level digital output
0.4
±
10
V
μ
A
Output current, high impedance
THS1401
0.1
1
1
MHz
fCLK
Clock frequency
THS1403
0.1
3
3
MHz
THS1408
0.1
8
8
MHz
td
Output delay time
25
ns
Latency
9.5
Cycles
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