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參數(shù)資料
| 型號： | LTC2281IUP#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 18/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 10BIT DUAL 64-QFN |
| 標(biāo)準(zhǔn)包裝： | 40 |
| 位數(shù)： | 10 |
| 采樣率（每秒）： | 125M |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 2 |
| 功率耗散（最大）： | 915mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 64-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 64-QFN（9x9） |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 2 個單端，雙極; 2 個差分, 雙極 |
LTC2281
3
2281fb
ANALOG INPUT The l denotes the specications which apply over the full operating temperature range, otherwise
specications are at TA = 25°C. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Analog Input Range (AIN+ –AIN–)
2.85V < VDD < 3.4V (Note 7)
●
±0.5V to ±1V
V
VIN,CM
Analog Input Common Mode (AIN+ +AIN–)/2
Differential Input Drive (Note 7)
Single Ended Input Drive (Note 7)
●
1
0.5
1.5
1.9
2
V
IIN
Analog Input Leakage Current
0V < AIN+, AIN– < VDD
●
–1
1
μA
ISENSE
SENSEA, SENSEB Input Leakage
0V < SENSEA, SENSEB < 1V
●
–3
3
μA
IMODE
MODE Input Leakage Current
0V < MODE < VDD
●
–3
3
μA
tAP
Sample-and-Hold Acquisition Delay Time
0
ns
tJITTER
Sample-and-Hold Acquisition Delay Time Jitter
0.2
psRMS
CMRR
Analog Input Common Mode Rejection Ratio
80
dB
Full Power Bandwidth
Figure 8 Test Circuit
640
MHz
DYNAMIC ACCURACY The l denotes the specications which apply over the full operating temperature range,
otherwise specications are at TA = 25°C. AIN = –1dBFS. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
SNR
Signal-to-Noise Ratio
5MHz Input
61.6
dB
30MHz Input
61.6
dB
70MHz Input
●
60
61.5
dB
140MHz Input
61.4
dB
SFDR
Spurious Free Dynamic Range
2nd or 3rd Harmonic
5MHz Input
85
dB
30MHz Input
85
dB
70MHz Input
●
69
82
dB
140MHz Input
77
dB
SFDR
Spurious Free Dynamic Range
4th Harmonic or Higher
5MHz Input
85
dB
30MHz Input
85
dB
70MHz Input
●
75
85
dB
140MHz Input
85
dB
S/(N+D)
Signal-to-Noise Plus Distortion Ratio
5MHz Input
61.5
dB
30MHz Input
61.5
dB
70MHz Input
●
60
61.4
dB
140MHz Input
61.2
dB
IMD
Intermodulation Distortion
fIN = 40MHz, 41MHz
80
dB
Crosstalk
fIN = 100MHz
–110
dB
The
l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. (Note 4)
CONVERTER CHARACTERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Gain Matching
External Reference
±0.3
%FS
Offset Matching
±2
mV
Transition Noise
SENSE = 1V
0.08
LSBRMS
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