LTC2242-10_15 Datasheet, PDF (3/30 Pages) Linear Technology – 10-Bit, 250Msps ADC

LTC2242-10
converter characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. (Note 4)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Offset Drift
±10
µV/C
Full-Scale Drift
Internal Reference
External Reference
±60
ppm/C
±45
ppm/C
Transition Noise
SENSE = 1V
0.18
LSB_RMS
Analog Input _{The ● denotes the specifications which apply over the full operating temperature range, otherwise}
specifications are at T_A = 25°C. (Note 4)
SYMBOL
V_IN
V_{IN, CM}
I_IN
I_SENSE
I_MODE
I_LVDS
t_AP
t_JITTER
PARAMETER
Analog Input Range (A_IN+ – A_IN–)
Analog Input Common Mode (A_IN+ + A_IN–)/2
Analog Input Leakage Current
SENSE Input Leakage
MODE Pin Pull-Down Current to GND
LVDS Pin Pull-Down Current to GND
Sample and Hold Acquisition Delay Time
Sample and Hold Acquisition Delay Time Jitter
Full Power Bandwidth
CONDITIONS
2.375V < V_DD < 2.625V (Note 7)
Differential Input (Note 7)
0 < A_IN+, A_IN– < V_DD
0V < SENSE < 1V
Figure 8 Test Circuit
MIN
TYP MAX UNITS
●
±0.5 to ±1
V
● 1.2
1.25
1.3
V
● –1
1
µA
● –1
1
µA
7
µA
7
µA
0.4
ns
95
1200
fs_RMS
MHz
Dynamic Accuracy The ● denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T_A = 25°C. A_IN = –1dBFS. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
SNR
Signal-to-Noise Ratio (Note 10)
10MHz Input
60.6
dB
70MHz Input
l 59.2 60.5
dB
140MHz Input
60.5
dB
240MHz Input
60.4
dB
SFDR
Spurious Free Dynamic Range
2nd or 3rd Harmonic
(Note 11)
10MHz Input
70MHz Input
140MHz Input
78
dB
l 63
75
dB
74
dB
240MHz Input
73
dB
Spurious Free Dynamic Range
4th Harmonic or Higher
(Note 11)
10MHz Input
70MHz Input
140MHz Input
85
dB
l 71
85
dB
85
dB
240MHz Input
85
dB
S/(N+D)
Signal-to-Noise Plus
Distortion Ratio
(Note 12)
10MHz Input
70MHz Input
140MHz Input
60.4
dB
l 58.2 60.4
dB
60.3
dB
240MHz Input
60.2
dB
IMD
Intermodulation Distortion
f_IN1 = 135MHz, f_IN2 = 140MHz
81
dBc
224210fd
3