參數(shù)資料
型號: THS8083-95CPZP
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝: POWER, THERMALLY ENHANCED, PLASTIC, TQFP-100
文件頁數(shù): 44/61頁
文件大?。?/td> 239K
代理商: THS8083-95CPZP
5–5
5.4.5.2 Dynamic Performance
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PARAMETER
ADC_INTREF
MIN
TYP
MAX
UNIT
Effective number of bits, ENOB
fI = 20 MHz
6.4
Bits
Signal-to-total ratio without distortion, SNR
fI = 20 MHz
40.5
dB
Total harmonic distortion, THD
fI = 1 MHz
–43.5
dB
Spurious free dynamic range, SFDR
fI = 1 MHz
49
dB
Analog input full-power bandwidth, BW
(see Note 11)
500
MHz
Based on analog input voltage of 1 dB FS referenced to the full-scale input range and a clock signal with 50% duty cycle.
NOTE 11: Analog input bandwidth – The analog input bandwidth is defined as the maximum frequency of the input sine that can be applied to the
device for which a 3 dB attenuation is observed in the reconstructed signal.
5.4.5.3 Clamp
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PARAMETER
ADC_INTREF
MIN
TYP
MAX
UNIT
Clamp code adjustment range
See Note 12
TA = 25°C
110
133
LSB
Clamp code adjustment range
See Note 12
105
133
LSB
Clamp acquisition time at input dc level change
Input level changed by
Within 10% of final value
1
1.8
ms
Clamp acquisition time at input dc level change
In ut level changed by
100 mV
Within 1 LSB of final value
2.1
3.6
ms
Clamp acquisition time, clamp code change
Clamp changed from
min to max
Within 1 LSB
400
700
ns
Clamp droop error
Droop between 2 clamps at 15 kHz line
TA = 25°C
0.35
1.1
LSB
Clamp droop error
Droo between 2 clam s at 15 kHz line
rate
0.35
1.2
LSB
NOTE 12: Clamp code adjustment range – A dc-input signal is applied to the device. The clamp code is changed from the minimum to maximum
setting. The corresponding change in the ADC output code is defined as the clamp code adjustment range.
5.4.6
Coarse PGA
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Full-scale adjustment range
0.4
1.2
V
Accuracy
± 6
LSB
Full-scale gain change settling time
285
ns
5.4.7
Fine PGA
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Full-scale adjustment range
–4
8
LSB
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