Datasheet

LTC1196/LTC1198
5
119698fb
RECOMMENDED OPERATING CONDITIONS
The l denotes the specifi cations which apply over
the full operating temperature range, otherwise specifi cations are at T
A
= 25°C. V
CC
= 2.7V operation.
SYMBOL PARAMETER CONDITIONS MIN
LTC1196-1
LTC1198-1
TYP MAX MIN
LTC1196-2
LTC1198-2
TYP MAX UNITS
f
CLK
Clock Frequency
l
0.01
0.01
5.4
4.6
0.01
0.01
4
3
MHz
MHz
t
CYC
Total Cycle Time LTC1196
LTC1198
12
16
12
16
CLK
CLK
t
SMPL
Analog Input Sampling Time 2.5 2.5 CLK
t
hCS
Hold Time CS LOW After Last CLK↑
20 40 ns
t
suCS
Setup Time CS↓ Before First CLK↑
(See Figures 1, 2)
40 78 ns
t
hDI
Hold Time D
IN
After CLK↑
LTC1198 40 78 ns
t
suDI
Setup Time D
IN
Stable Before CLK↑
LTC1198 40 78 ns
t
WHCLK
CLK HIGH Time f
CLK
= f
CLK(MAX)
40% 40% 1/f
CLK
t
WLCLK
CLK LOW Time f
CLK
= f
CLK(MAX)
40% 40% 1/f
CLK
t
WHCS
CS HIGH Time Between Data Transfer
Cycles
50 96 ns
t
WLCS
CS LOW Time During Data Transfer LTC1196
LTC1198
11
15
11
15
CLK
CLK
CONVERTER AND MULTIPLEXER CHARACTERISTICS
The l denotes the specifi cations
which apply over the full operating temperature range, otherwise specifi cations are at T
A
= 25°C. V
CC
= 2.7V, V
REF
= 2.5V,
f
CLK
= f
CLK(MAX)
as defi ned in Recommended Operating Conditions, unless otherwise noted.
DIGITAL AND DC ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply
over the full operating temperature range, otherwise specifi cations are at T
A
= 25°C. V
CC
= 2.7V, V
REF
= 2.5V, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IH
High Level Input Voltage V
CC
= 3.6V
l
1.9 V
V
IL
Low Level Input Voltage V
CC
= 2.7V
l
0.45 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
= 2.7V, I
O
= 10μA
V
CC
= 2.7V, I
O
= 360μA
l
l
2.3
2.1
2.60
2.45
V
V
V
OL
Low Level Output Voltage V
CC
= 2.7V, I
O
= 400μA
l
0.3 V
I
OZ
Hi-Z Output Leakage CS = HIGH
l
±3 μA
PARAMETER CONDITIONS
LTC1196-1A/LTC1196-2A
LTC1198-1A/LTC1198-2A
LTC1196-1B/LTC1196-2B
LTC1198-1B/LTC1198-2B
UNITSMIN TYP MAX MIN TYP MAX
No Missing Codes Resolution
l
8 8 Bits
Offset Error
l
±1/2 ±1 LSB
Linearity Error (Note 3)
l
±1/2 ±1 LSB
Full-Scale Error
l
±1/2 ±1 LSB
Total Unadjusted Error (Note 4) LTC1196, V
REF
= 2.5.000V
LTC1198, V
CC
= 2.700V
l
±1/2 ±1 LSB
Analog and REF Input Range LTC1196 –0.05V to V
CC
+ 0.05V V
Analog Input Leakage Current (Note 5)
l
±1 ±1 μA