参数资料
型号: LTC2262CUJ-12#PBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: ADC
英文描述: 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40
封装: 6 X 6 MM, LEAD FREE, PLASTIC, QFN-40
文件页数: 23/28页
文件大小: 481K
代理商: LTC2262CUJ-12#PBF
LTC2262-12
4
226212fa
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 5)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
SNR
Signal-to-Noise Ratio
5MHz Input
30MHz Input
70MHz Input
140MHz Input
l
68.5
70.5
70.4
70.3
70.1
dB
SFDR
Spurious Free Dynamic Range
2nd or 3rd Harmonic
5MHz Input
30MHz Input
70MHz Input
140MHz Input
l
74
88
82
81
dB
Spurious Free Dynamic Range
4th Harmonic or Higher
5MHz Input
30MHz Input
70MHz Input
140MHz Input
90
dB
S/(N+D)
Signal-to-Noise Plus Distortion Ratio
5MHz Input
30MHz Input
70MHz Input
140MHz Input
l
68
70.4
70.3
70
69.8
dB
INTERNAL REFERENCE CHARACTERISTICS The l denotes the specications which apply over the
full operating temperature range, otherwise specications are at TA = 25°C. (Note 5)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCM Output Voltage
IOUT = 0
0.5 VDD – 25mV
0.5 VDD
0.5 VDD + 25mV
V
VCM Output Temperature Drift
±25
ppm/°C
VCM Output Resistance
–600μA < IOUT < 1mA
4
Ω
VREF Output Voltage
IOUT = 0
1.225
1.250
1.275
V
VREF Output Temperature Drift
±25
ppm/°C
VREF Output Resistance
–400μA < IOUT < 1mA
7
Ω
VREF Line Regulation
1.7V < VDD < 1.9V
0.6
mV/V
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ENCODE INPUTS (ENC+, ENC)
Differential Encode Mode (ENCNot 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+, ENCto GND
l
0.2
3.6
V
RIN
Input Resistance
(See Figure 10)
10
CIN
Input Capacitance
(Note 8)
3.5
pF
Single-Ended Encode Mode (ENCTied 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
CIN
Input Capacitance
(Note 8)
3.5
pF
DIGITAL INPUTS AND OUTPUTS The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. (Note 5)
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