LTC2379-18
REFERENCE INPUT
SYMBOL
V
REF
I
REF
V
IHDGC
V
ILDGC
PARAMETER
Reference Voltage
Reference Input Current
High Level Input Voltage REF/DGC Pin
Low Level Input Voltage REF/DGC Pin
The
l
denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at T
A
= 25°C. (Note 4)
CONDITIONS
(Note 5)
(Note 9)
l
l
l
l
MIN
2.5
TYP
1
MAX
5.1
1.3
0.2V
REF
UNITS
V
mA
V
V
0.8V
REF
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
V
IH
V
IL
I
IN
C
IN
V
OH
V
OL
I
OZ
I
SOURCE
I
SINK
High Level Input Voltage
Low Level Input Voltage
Digital Input Current
Digital Input Capacitance
High Level Output Voltage
Low Level Output Voltage
Hi-Z Output Leakage Current
Output Source Current
Output Sink Current
I
O
= –500μA
I
O
= 500μA
V
OUT
= 0V to OV
DD
V
OUT
= 0V
V
OUT
= OV
DD
l
l
l
DIGITAL INPUTS AND DIGITAL OUTPUTS
CONDITIONS
MIN
l
l
TYP
MAX
0.2 • OV
DD
UNITS
V
V
μA
pF
V
0.8 • OV
DD
–10
5
OV
DD
– 0.2
0.2
–10
–10
10
10
10
V
IN
= 0V to OV
DD
l
V
μA
mA
mA
POWER REQUIREMENTS
SYMBOL
V
DD
OV
DD
I
VDD
I
OVDD
I
PD
I
PD
P
D
PARAMETER
Supply Voltage
Supply Voltage
Supply Current
Supply Current
Power Down Mode
Power Down Mode
Power Dissipation
Power Down Mode
Power Down Mode
The
l
denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 4)
CONDITIONS
l
l
l
l
l
MIN
2.375
1.71
TYP
2.5
7.2
0.7
0.9
0.9
18
2.25
2.25
MAX
2.625
5.25
8.6
90
140
21.5
225
315
UNITS
V
V
mA
mA
μA
μA
mW
μW
μW
1.6Msps Sample Rate
1.6Msps Sample Rate (C
L
= 20pF)
Conversion Done (I
VDD
+ I
OVDD
+ I
REF
)
Conversion Done (I
VDD
+ I
OVDD
+ I
REF
, H-Grade)
1.6Msps Sample Rate
Conversion Done (I
VDD
+ I
OVDD
+ I
REF
)
Conversion Done (I
VDD
+ I
OVDD
+ I
REF
, H-Grade)
ADC TIMING CHARACTERISTICS
SYMBOL
f
SMPL
t
CONV
t
ACQ
t
CYC
t
CNVH
t
BUSYLH
t
CNVL
t
QUIET
t
SCK
t
SCKH
PARAMETER
Maximum Sampling Frequency
Conversion Time
Acquisition Time
Time Between Conversions
CNV High Time
CNV↑ to BUSY Delay
Minimum Low Time for CNV
SCK Quiet Time from CNV↑
SCK Period
SCK High Time
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 4)
CONDITIONS
l
l
MIN
360
200
625
20
TYP
MAX
1.6
412
UNITS
Msps
ns
ns
ns
ns
t
ACQ
= t
CYC
– t
CONV
– t
BUSYLH
(Note 10)
l
l
l
l
l
l
l
l
C
L
= 20pF
(Note 11)
(Note 10)
(Notes 11, 12)
13
20
20
10
4
ns
ns
ns
ns
ns
237918fa
4
LINEAR [ LINEAR INTEGRATED SYSTEMS ]
