LTC1860/LTC1861
4
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For more information www.linear.com/LTC1860
conVerTer anD MulTiplexer cHaracTerisTics
SYMBOL CONDITIONS MIN TYP MAX UNITS
Resolution
l
12 Bits
No Missing Codes Resolution
l
12 Bits
INL (Note 3)
l
±1 LSB
Transition Noise 0.07 LSB
RMS
Gain Error
l
±20 mV
Offset Error LTC1860 SO-8 and MSOP, LTC1861 MSOP
LTC1861 SO-8
l
l
±2
±3
±5
±7
mV
mV
Input Differential Voltage Range
V
IN
= IN
+
– IN
–
l
0 V
REF
V
Absolute Input Range IN
+
Input
IN
–
Input
–0.05
–0.05
V
CC
+ 0.05
V
CC
/2
V
V
V
REF
Input Range LTC1860 SO-8 and MSOP, LTC1861 MSOP 1 V
CC
V
Analog Input Leakage Current (Note 4)
l
±1 µA
C
IN
Input Capacitance In Sample Mode
During Conversion
12
5
pF
pF
The
l
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C.
V
CC
= 5V, V
REF
= 5V, f
SCK
= f
SCK(MAX)
as defined in Recommended Operating Conditions, unless otherwise noted.
DynaMic accuracy
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SNR Signal-to-Noise Ratio 72 dB
S/(N + D) Signal-to-Noise Plus Distortion Ratio 100kHz Input Signal 71 dB
THD Total Hamonic Distortion Up to 5th Harmonic 100kHz Input Signal 77 dB
Full Power Bandwidth 20 MHz
Full Linear Bandwidth S/(N + D) ≥ 68dB 125 kHz
T
A
= 25°C.
V
CC
= 5V, f
SAMPLE
= 250kHz, unless otherwise specified.
DigiTal anD Dc elecTrical cHaracTerisTics
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IH
High Level Input Voltage V
CC
= 5.25V
l
2.4 V
V
IL
Low Level Input Voltage V
CC
= 4.75V
l
0.8 V
I
IH
High Level Input Current V
IN
= V
CC
l
2.5 µA
I
IL
Low Level Input Current V
IN
= 0V
l
–2.5 µA
V
OH
High Level Output Voltage V
CC
= 4.75V, I
O
= 10µA
V
CC
= 4.75V, I
O
= 360µA
l
l
4.5
2.4
4.74
4.72
V
V
V
OL
Low Level Output Voltage V
CC
= 4.75V, I
O
= 1.6mA
l
0.4 V
The
l
denotes specifications which apply
over the full operating temperature range, otherwise specifications are T
A
= 25°C.
V
CC
= 5V, V
REF
= 5V, unless otherwise noted.
