Datasheet

LTC2389-16
3
238916f
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 PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
+
Absolute Input Range (IN
+
) (Note 5)
l
–0.1 V
REF
+ 0.1 V
V
IN
–
Absolute Input Range (IN
–
) Fully Differential (Note 5)
Pseudo-Differential Unipolar (Note 5)
Pseudo-Differential Bipolar (Note 5)
l
l
l
–0.1
–0.1
V
REF
/2 – 0.1
0
V
REF
/2
V
REF
+ 0.1
0.1
V
REF
/2 + 0.1
V
V
V
V
IN
+
– V
IN
–
Input Differential Voltage Range Fully Differential
Pseudo-Differential Unipolar
Pseudo-Differential Bipolar
l
l
l
–V
REF
0
–V
REF
/2
V
REF
V
REF
V
REF
/2
V
V
V
V
CM
Input Common Mode Voltage Range Fully Differential
l
V
REF
/2 – 0.1 V
REF
/2 V
REF
/2 + 0.1 V
I
IN
Analog Input Leakage Current C- and I-Grades
H-Grade
l
l
–1
–2
1
2
µA
µA
C
IN
Analog Input Capacitance Sample Mode
Hold Mode
45
5
pF
pF
CMRR Input Common Mode Rejection Ratio 70 dB
V
IHCNVST
CNVST High Level Input Voltage
l
1.5 V
V
ILCNVST
CNVST Low Level Input Voltage
l
0.5 V
I
INCNVST
CNVST Input Current V
IN
= 0V to V
DD
l
–25 –60 µA
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)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution
l
16 Bits
No Missing Codes
l
16 Bits
Transition Noise Fully Differential
Pseudo-Differential Unipolar
Pseudo-Differential Bipolar
0.19
0.38
0.38
LSB
RMS
LSB
RMS
LSB
RMS
INL Integral Linearity Error Fully Differential (Note 6)
Pseudo-Differential Unipolar (Note 6)
Pseudo-Differential Bipolar (Note 6)
l
l
l
–1
–1
–1
±0.3
±0.3
±0.3
1
1
1
LSB
LSB
LSB
DNL Differential Linearity Error Fully Differential
Pseudo-Differential Unipolar
Pseudo-Differential Bipolar
l
l
l
–0.6
–0.7
–0.7
±0.1
±0.1
±0.1
0.6
0.7
0.7
LSB
LSB
LSB
ZSE Zero-Scale Error Fully Differential (Note 7)
Pseudo-Differential Unipolar (Note 7)
Pseudo-Differential Bipolar (Note 7)
l
l
l
–3
–4
–4
0
0
0
3
4
4
LSB
LSB
LSB
Zero-Scale Error Drift ±0.05 ppm/°C
FSE Full-Scale Error External Reference (Note 7)
Internal Reference (Note 7)
l
0.15
0.15
%
%
Full-Scale Error Drift ±5 ppm/°C