LTC1090
CO VERTER A D ULTIPLEXER CHARACTERISTICS The ● denotes specifications which
apply over the full operating temperature range, otherwise specifications are TA = 25°C. (Note 3)
PARAMETER
Offset Error
Linearity Error
Gain Error
Total Unadjusted Error
Reference Input Resistance
Analog and REF Input Range
On Channel Leakage Current
(Note 8)
Off Channel Leakage Current
(Note 8)
CONDITIONS
(Note 4)
(Notes 4 and 5)
(Note 4)
VREF = 5.000V
(Notes 4 and 6)
(Note 7)
On Channel = 5V
Off Channel = 0V
On Channel = 0V
Off Channel = 5V
On Channel = 5V
Off Channel = 0V
On Channel = 0V
Off Channel = 5V
LTC1090A
MIN TYP MAX
●
±0.5
●
±0.5
●
±1.0
●
±1.0
LTC1090
MIN TYP MAX
±0.5
±0.5
±2.0
UNITS
LSB
LSB
LSB
LSB
10
10
kΩ
(V–) – 0.05V to VCC 0.05V
V
●
1
1
µA
●
–1
–1
µA
●
–1
–1
µA
●
1
1
µA
AC ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating
temperature range, otherwise specification are TA = 25°C. (Note 3)
SYMBOL
tACC
tSMPL
tCONV
tdDO
tdis
ten
thDO
tf
tr
CIN
PARAMETER
Delay Time From CS↓ to DOUT Data Valid
Analog Input Sample Time
Conversion Time
Delay Time, SCLK↓ to DOUT Data Valid
Delay Time, CS↑ to DOUT Hi-Z
Delay Time, 2nd CLK↓ to DOUT Enabled
Time Output Data Remains Valid After SCLK↓
DOUT Fall Time
DOUT Rise Time
Input Capacitance
CONDITIONS
(Note 9)
See Operating Sequence
See Operating Sequence
See Test Circuits
See Test Circuits
See Test Circuits
See Test Circuits
See Test Circuits
Analog Inputs
Digital Inputs
On Channel
Off Channel
LTC1090/LTC1090A
MIN
TYP
MAX
UNITS
2
ACLK Cycles
5
SCLK Cycles
44
ACLK Cycles
●
250
450
ns
● 140
300
ns
ns
● 150
400
ns
ns
50
ns
● 90
300
ns
ns
● 60
300
ns
ns
65
pF
5
pF
5
pF
1090fc
3