LTC1857/LTC1858/LTC1859
A ALOG I PUT
The
●
denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at T
A
= 25°C. (Note 5)
PARAMETER
Analog Input Range
CONDITIONS
CH0 to CH7, COM
ADC
+
, ADC
–
(Note 3)
MIN
TYP
0 to 5, 0 to 10
±5, ±10
0 to 2.048
0 to 4.096
ADC
–
±1.024
ADC
–
±2.048
42
31
10
5
Hi-Z
5
24
12
4
●
Impedance
Capacitance
Input Leakage Current
DY A IC ACCURACY
SYMBOL
THD
PARAMETER
Total Harmonic Distortion
The
●
denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C. MUXOUT connected to ADC inputs. (Notes 5 and 12)
CONDITIONS
1kHz Input Signal,
First Five Harmonics
1kHz Input Signal
1kHz Input Signal
LTC1857
MIN TYP MAX
74
–101
–103
–120
1
–70
60
Full-Scale Step
(Note 9)
(Note 13)
150
4
150
LTC1858
MIN
TYP MAX
83
–101
–103
–120
1
–70
60
4
150
LTC1859
MIN TYP MAX
87
–101
–103
–120
1
–70
60
4
UNITS
dB
dB
dB
dB
MHz
ns
ps
µs
ns
S/(N + D) Signal-to-(Noise + Distortion) Ratio 1kHz Input Signal
Peak Harmonic or Spurious Noise
Channel-to-Channel Isolation
–3dB Input Bandwidth
Aperture Delay
Aperture Jitter
Transient Response
Overvoltage Recovery
U
W U
U
MAX
UNITS
V
V
V
V
V
V
kΩ
kΩ
kΩ
kΩ
kΩ
pF
pF
pF
pF
CH0 to CH7, COM
Unipolar
Bipolar
MUXOUT
+
, MUXOUT
–
Unipolar
Bipolar
ADC
+
, ADC
–
CH0 to CH7, COM
Sample Mode ADC
+
, ADC
–
0V to 2.048V,
±1.024V
0V to 4.096V,
±2.048V
Hold Mode ADC
+
, ADC
–
ADC
+
, ADC
–
, CONVST = Low
±1
µA
185789f
3
LINEAR [ LINEAR INTEGRATED SYSTEMS ]
