LTC2159 查看數據表（PDF） - Linear Technology
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LTC2159 Datasheet PDF : 32 Pages
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LTC2159
Converter Characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Resolution (No Missing Codes)
l 16
Bits
Integral Linearity Error
Differential Analog Input (Note 6)
l –6
±2
6
LSB
Differential Linearity Error
Differential Analog Input
l –0.9
±0.5
0.9
LSB
Offset Error
(Note 7)
l –7
±1.5
7
mV
Gain Error
Internal Reference
External Reference
±1.5
%FS
l –1.8
–0.5
0.8
%FS
Offset Drift
±10
µV/°C
Full-Scale Drift
Internal Reference
External Reference
±30
ppm/°C
±10
ppm/°C
Transition Noise
External Reference
3.2
LSBRMS
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
VIN
VIN(CM)
PARAMETER
Analog Input Range (AIN+ – AIN–)
Analog Input Common Mode (AIN+ + AIN–)/2
CONDITIONS
1.7V < VDD < 1.9V
Differential Analog Input (Note 8)
MIN
l
l
0.7
TYP MAX
1 to 2
VCM
1.25
UNITS
VP-P
V
VSENSE
IINCM
IIN1
IIN2
External Voltage Reference Applied to SENSE
Analog Input Common Mode Current
Analog Input Leakage Current (No Encode)
PAR/SER Input Leakage Current
External Reference Mode
Per Pin, 20Msps
0 < AIN+, AIN– < VDD
0 < PAR/SER < VDD
l 0.625 1.250 1.300
V
32
µA
l
–1
1
µA
l
–3
3
µA
IIN3
SENSE Input Leakage Current
0.625 < SENSE < 1.3V
l
–3
3
µA
tAP
tJITTER
Sample-and-Hold Acquisition Delay Time
Sample-and-Hold Acquisition Delay Jitter
Single-Ended Encode
Differential Encode
0
ns
0.07
psRMS
0.09
CMRR Analog Input Common Mode Rejection Ratio
80
dB
BW-3B Full Power Bandwidth
Figure 6 Test Circuit
550
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
MIN
TYP
MAX
UNITS
SNR
Signal-to-Noise Ratio
5MHz Input
30MHz Input
70MHz Input
140MHz Input
77.1
dBFS
l 75.5
77.0
dBFS
76.9
dBFS
76.4
dBFS
SFDR
Spurious Free Dynamic Range
2nd Harmonic
5MHz Input
30MHz Input
70MHz Input
140MHz Input
90
dBFS
l 84
90
dBFS
89
dBFS
84
dBFS
SFDR
Spurious Free Dynamic Range
3rd Harmonic
5MHz Input
30MHz Input
70MHz Input
140MHz Input
90
dBFS
l 84
90
dBFS
89
dBFS
84
dBFS
2159f
4
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