DigiTal accuracy The l denotes the specifications which " />
參數(shù)資料
型號(hào)： LTC2268IUJ-14#TRPBF
廠商： Linear Technology
文件頁(yè)數(shù)： 27/32頁(yè)
文件大?。?/td> 0K
描述： IC ADC 14BIT 125MSPS DUAL 40QFN
標(biāo)準(zhǔn)包裝： 2,000
位數(shù)： 14
采樣率（每秒）： 125M
數(shù)據(jù)接口： Serial LVDS
轉(zhuǎn)換器數(shù)目： 2
功率耗散（最大）： 364mW
電壓電源： 單電源
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 40-WFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 40-QFN（6x6）
包裝： 帶卷 (TR)
輸入數(shù)目和類(lèi)型： 2 Differential; 2 Single-Ended
配用： DC1371A-ND - BOARD USB DATA ACQUISITION HS
LTC2268-14/
LTC2267-14/LTC2266-14
4
22687614fa
DigiTal accuracy The
l
denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at TA = 25°C. AIN = –1dBFS. (Note 5)
SYMBOL PARAMETER
CONDITIONS
LTC2268-14
LTC2267-14
LTC2266-14
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
SNR
Signal-to-Noise Ratio
5MHz Input
70MHz Input
140MHz Input
l
71.4
73.1
73
72.6
70.8
73
72.9
72.6
71
73
72.9
72.5
dBFS
SFDR
Spurious Free Dynamic Range
2nd or 3rd Harmonic
5MHz Input
70MHz Input
140MHz Input
l
75
88
85
82
76
88
85
82
76
88
85
82
dBFS
Spurious Free Dynamic Range
4th Harmonic or Higher
5MHz Input
70MHz Input
140MHz Input
l
84
90
83
90
85
90
dBFS
S/(N+D) Signal-to-Noise Plus Distortion
Ratio
5MHz Input
70MHz Input
140MHz Input
l
70.5
73
72.6
72
70.2
73
72.6
72
70.4
72.9
72.6
72
dBFS
Crosstalk
10MHz Input
–105
dBc
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCM Output Voltage
IOUT = 0
0.5
VDD – 25mV
0.5
VDD
0.VDD + 25mV
V
VCM Output Temperature Drift
±25
ppm/°C
VCM Output Resistance
–600A < IOUT < 1mA
4
Ω
VREF Output Voltage
IOUT = 0
1.225
1.25
1.275
V
VREF Output Temperature Drift
±25
ppm/°C
VREF Output Resistance
–400A < IOUT < 1mA
7
Ω
VREF Line Regulation
1.7V < VDD < 1.9V
0.6
mV/V
inTernal reFerence characTerisTics The
l
denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at TA = 25°C. AIN = –1dBFS. (Note 5)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ENCODE INPUTS (ENC+, ENC–)
DIFFERENTIAL ENCODE MODE (ENC– NOT TIED TO GND)
VID
Differential Input Voltage
(Note 8)
l
0.2
V
VICM
Common Mode Input Voltage
Internally Set
Externally Set (Note 8)
l
1.1
1.2
1.6
V
VIN
Input Voltage Range
ENC+, ENC– to GND
l
0.2
3.6
V
RIN
Input Resistance
(See Figure 10)
10
kΩ
CIN
Input Capacitance
3.5
pF
SINGLE-ENDED ENCODE MODE (ENC– TIED TO GND)
VIH
High Level Input Voltage
VDD =1.8V
l
1.2
V
VIL
Low Level Input Voltage
VDD =1.8V
l
0.6
V
VIN
Input Voltage Range
ENC+ to GND
l
0
3.6
V
RIN
Input Resistance
(See Figure 11)
30
kΩ
CIN
Input Capacitance
3.5
pF
DigiTal inpuTs anD ouTpuTs The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 5)
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