Datasheet

LTC2268-14/
LTC2267-14/LTC2266-14
3
22687614fa
converTer characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 5)
PARAMETER CONDITIONS
LTC2268-14 LTC2267-14 LTC2266-14
UNITSMIN TYP MAX MIN TYP MAX MIN TYP MAX
Resolution
(No Missing Codes)
l
14 14 14 Bits
Integral Linearity Error Differential Analog Input
(Note 6)
l
–3.5
±1
3.5 –3.5
±1
3.5 –2.75
±1
2.75 LSB
Differential Linearity Error Differential Analog Input
l
–0.8
±0.3
0.8 –0.8
±0.3
0.8 –0.8
±0.3
0.8 LSB
Offset Error (Note 7)
l
–12 ±3 12 –12 ±3 12 –12 ±3 2 mV
Gain Error Internal Reference
External Reference
l
–2.3
–0.9
–0.9 0.5 –2.3
–0.9
–0.9 0.5 –2.3
–0.9
–0.9 0.5
%FS
%FS
Offset Drift
±20 ±20 ±20
µV/°C
Full-Scale Drift Internal Reference
External Reference
±30
±10
±30
±10
±30
±10
ppm/°C
ppm/°C
Gain Matching External Reference ±0.2 ±0.2 ±0.2 %FS
Offset Matching ±3 ±3 ±3 mV
Transition Noise External Reference 1.2 1.2 1.2 LSB
RMS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Analog Input Range (A
IN
+
– A
IN
–
) 1.7V < V
DD
< 1.9V
l
1 to 2 V
P–P
V
IN(CM)
Analog Input Common Mode (A
IN
+
– A
IN
–
)/2 Differential Analog Input (Note 8)
l
V
CM
– 100mV V
CM
V
CM
+100mV V
V
SENSE
External Voltage Reference Applied to SENSE External Reference Mode
l
0.625 1.25 1.3 V
I
INCM
Analog Input Common Mode Current Per Pin, 125Msps
Per Pin, 105Msps
Per Pin, 80Msps
l
155
130
100
µA
µA
µA
I
IN1
Analog Input Leakage Current (No Encode) 0 < A
IN
+
, A
IN
–
< V
DD
l
–1 1 µA
I
IN2
PAR/SER Input Leakage Current 0 < PAR/SER < V
DD
l
–3 3 µA
I
IN3
SENSE Input Leakage Current 0.625 < SENSE < 1.3V
l
–6 6 µA
t
AP
Sample-and-Hold Acquisition Delay Time 0 ns
t
JITTER
Sample-and-Hold Acquisition Delay Jitter 0.15 ps
RMS
CMRR Analog Input Common Mode Rejection Ratio 80 dB
BW-3B Full Power Bandwidth Figure 6 Test Circuit 800 MHz
analog inpuT
The l denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at T
A
= 25°C. (Note 5)