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参数资料
| 型号： | DC1370A-L |
| 厂商： | Linear Technology |
| 文件页数： | 29/34页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO 25MSPS LTC2256-12 |
| 软件下载： | QuikEval II System |
| 设计资源： | DC1370A Design Files |
| 标准包装： | 1 |
| 系列： | * |
| 相关产品： | DC718C-ND - DEMO QUIKEVAL-II DATA |
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LTC2258-12
LTC2257-12/LTC2256-12
4
225812fd
For more information www.linear.com/LTC2258-12
analog inpuT The
l
denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at TA = 25°C. (Note 5)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Analog Input Range (AIN+ – AIN–)
1.7V < VDD < 1.9V
l
1 to 2
VP-P
VIN(CM)
Analog Input Common Mode (AIN+ + AIN–)/2 Differential Analog Input (Note 8) l VCM – 100mV
VCM
VCM + 100mV
V
VSENSE
External Voltage Reference Applied to SENSE External Reference Mode
l
0.625
1.250
1.300
V
IINCM
Analog Input Common Mode Current
Per Pin, 65Msps
Per Pin, 40Msps
Per Pin, 25Msps
81
50
31
A
IIN1
Analog Input Leakage Current
0 < AIN+, AIN– < VDD, No Encode
l
–1
1
A
IIN2
PAR/SER Input Leakage Current
0 < PAR/SER < VDD
l
–3
3
A
IIN3
SENSE Input Leakage Current
0.625V < SENSE < 1.3V
l
–6
6
A
tAP
Sample-and-Hold Acquisition Delay Time
0
ns
tJITTER
Sample-and-Hold Acquisition Delay Jitter
0.17
psRMS
CMRR
Analog Input Common Mode Rejection Ratio
80
dB
BW-3B
Full-Power Bandwidth
Figure 6 Test Circuit
800
MHz
DynaMic 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
LTC2258-12
LTC2257-12
LTC2256-12
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
SNR
Signal-to-Noise Ratio
5MHz Input
30MHz
70MHz Input
140MHz Input
l
69
71.1
71
70.9
70.7
69.6
70.8
70.7
70.6
70.4
69
70.5
70.1
69.9
dB
SFDR
Spurious Free Dynamic Range
2nd or 3rd Harmonic
5MHz Input
30MHz
70MHz Input
140MHz Input
l
78
90
84
79
90
84
79
90
84
dB
Spurious Free Dynamic Range
4th Harmonic or Higher
5MHz Input
30MHz
70MHz Input
140MHz Input
l
83
90
83
90
83
90
84
dB
S/(N+D)
Signal-to-Noise Plus
Distortion Ratio
5MHz Input
30MHz
70MHz Input
140MHz Input
l
69.1
71
70.9
70.3
68.9
70.7
70.6
70.2
68.3
70.5
70.4
70
69.5
dB
DB
dB
inTernal reFerence characTerisTics The
l
denotes the specifications which apply over the
full operating temperature range, otherwise specifications 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
–600A < 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
–400A < IOUT < 1mA
7
Ω
VREF Line Regulation
1.7V < VDD < 1.9V
0.6
mV/V
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