LTC2222_15 Datasheet, PDF (3/28 Pages) Linear Technology – 12-Bit,105Msps/ 80Msps ADCs

LTC2222/LTC2223
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C.
LTC2222
LTC2223
PARAMETER
CONDITIONS
MIN TYP MAX MIN TYP MAX UNITS
Resolution (No Missing Codes)
l 12
12
Bits
Integral Linearity Error (Note 5)
Differential Analog Input
l –1.3 ±0.3 1.3 –1.1 ±0.3 1.1
LSB
Differential Linearity Error
Differential Analog Input
l –1 ±0.2
1
–0.8 ±0.2 0.8
LSB
Integral Linearity Error (Note 5)
Single-Ended Analog Input
±1
±1
LSB
Differential Linearity Error
Single-Ended Analog Input
±0.2
±0.2
LSB
Offset Error (Note 6)
l –30
±3
30
–30
±3
30
mV
Gain Error
External Reference
l –2.5 ±0.5 2.5 –2.5 ±0.5 2.5
%FS
Offset Drift
±10
±10
μV/C
Full-Scale Drift
Internal Reference
External Reference
±30
±30
ppm/C
±15
±15
ppm/C
Transition Noise
SENSE = 1V
0.5
0.5
LSB_RMS
ANALOG INPUT The l 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
PARAMETER
Analog Input Range (A_IN+ – A_IN–)
Analog Input Common Mode (A_IN+ + A_IN–)/2
I_IN
I_SENSE
I_MODE
Analog Input Leakage Current
SENSE Input Leakage
MODE Pin Pull-Down Current to GND
Full Power Bandwidth
CONDITIONS
3.1V < V_DD < 3.5V
Differential Input
Single-Ended Input (Note 7)
0 < A_IN+, A_IN– < V_DD
0V < SENSE < 1V
Figure 8 Test Circuit
M_IN
TYP
MAX
l
±0.5 to ±1
l
1
1.6
1.9
l 0.5
1.6
2.1
l –1
1
l –1
1
10
775
UNITS
V
V
V
μA
μA
μA
MHz
t_AP
t_JITTER
CMRR
Sample and Hold Acquisition Delay Time
Sample and Hold Acquisition Delay Time Jitter
Analog Input Common Mode Rejection Ratio
0
ns
0.15
ps_RMS
80
dB
22223fb
3