
LTC2302/LTC2306
3
23026fa
CONVERTER AND MULTIPLEXER CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN+
Absolute Input Range (CH0, CH1, IN+)
(Note 9)
l
–0.05
REFCOMP
V
VIN–
Absolute Input Range (CH0, CH1, IN–)
Unipolar (Note 9)
Bipolar (Note 9)
l
–0.05
0.25 REFCOMP
0.75 REFCOMP
V
VIN+ – VIN– Input Differential Voltage Range
VIN = VIN+ – VIN– (Unipolar)
VIN = VIN+ – VIN– (Bipolar)
l
0 to VREF
±VREF/2
V
IIN
Analog Input Leakage Current
l
±1
μA
CIN
Analog Input Capacitance
Sample Mode
Hold Mode
55
5
pF
CMRR
Input Common Mode Rejection Ratio
70
dB
The
l denotes the specications
which apply over the full operating temperature range, otherwise specications are at TA = 25°C. (Notes 4, 5)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Resolution (No Missing Codes)
l
12
Bits
Integral Linearity Error
(Note 6)
l
±0.3
±1
LSB
Differential Linearity Error
l
±0.25
±1
LSB
Bipolar Zero Error
(Note 7)
l
±1
±6
LSB
Bipolar Zero Error Drift
0.002
LSB/°C
Unipolar Zero Error
(Note 7)
l
±1
±6
LSB
Unipolar Zero Error Drift
0.002
LSB/°C
Unipolar Zero Error Match (LTC2306)
±0.3
±3
LSB
Bipolar Full-Scale Error
(Note 8)
l
±1.5
±8
LSB
Bipolar Full-Scale Error Drift
0.05
LSB/°C
Unipolar Full-Scale Error
(Note 8)
l
±1.2
±6
LSB
Unipolar Full-Scale Error Drift
0.05
LSB/°C
Unipolar Full-Scale Error Match (LTC2306)
±0.3
±3
LSB
ANALOG INPUT The l denotes the specications which apply over the full operating temperature range, otherwise
specications are at TA = 25°C. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VREF Input Range
l
0.1
VDD
V
IREF
Reference Input Current
fSMPL = 0ksps, VREF = 4.096V
fSMPL = 500ksps, VREF = 4.096V
l
50
230
80
260
μA
CREF
Reference Input Capacitance
55
pF
REFERENCE INPUT The l denotes the specications which apply over the full operating temperature range,
otherwise specications are at TA = 25°C. (Note 4)