LTC2379-18
REFERENCE INPUT The l denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at TA = 25°C. ꢂNote 4x
SYMꢁOꢀ
PARAMETER
CONDITIONS
(Iote 5)
MIN
TYP
MAX
5.1
UNITS
l
l
l
l
V
Reference Voltage
2.5
V
mA
V
REF
REF
ꢁ
Reference ꢁnput Current
High Level ꢁnput Voltage REF/DGC Pin
Low Level ꢁnput Voltage REF/DGC Pin
(Iote 9)
1
1.3
V
ꢁHDGC
V
ꢁLDGC
0.8V
REF
0.2V
V
REF
DIGITAL INPUTS AND DIGITAL OUTPUTS The l denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at TA = 25°C. ꢂNote 4x
SYMꢁOꢀ PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
l
l
l
V
V
High Level ꢁnput Voltage
Low Level ꢁnput Voltage
Digital ꢁnput Current
0.8 • OV
ꢁH
ꢁL
DD
0.2 • OV
10
V
DD
ꢁ
V
ꢁI
= 0V to OV
DD
–10
μA
pF
ꢁI
C
V
V
Digital ꢁnput Capacitance
High Level Output Voltage
Low Level Output Voltage
Hi-Z Output Leakage Current
Output Source Current
Output Sink Current
5
ꢁI
l
l
l
ꢁ = –500μA
O
OV – 0.2
DD
V
OH
OL
ꢁ = 500μA
O
0.2
10
V
ꢁ
ꢁ
ꢁ
V
OUT
V
OUT
V
OUT
= 0V to OV
DD
–10
μA
mA
mA
OZ
= 0V
= OV
–10
10
SOURCE
SꢁIK
DD
POWER REQUIREMENTS The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. ꢂNote 4x
SYMꢁOꢀ
PARAMETER
Supply Voltage
Supply Voltage
CONDITIONS
MIN
2.375
1.71
TYP
MAX
2.625
5.25
8.6
UNITS
l
l
l
V
DD
2.5
V
V
OV
DD
ꢁ
ꢁ
ꢁ
ꢁ
Supply Current
Supply Current
Power Down Mode
Power Down Mode
1.6Msps Sample Rate
7.2
0.7
0.9
0.9
mA
mA
μA
VDD
OVDD
PD
1.6Msps Sample Rate (C = 20pF)
L
+ ꢁ
+ ꢁ
l
l
Conversion Done (ꢁ
Conversion Done (ꢁ
+ ꢁ )
REF
90
140
VDD
VDD
OVDD
OVDD
REF
+ ꢁ , H-Grade)
μA
PD
P
Power Dissipation
Power Down Mode
Power Down Mode
1.6Msps Sample Rate
18
2.25
2.25
21.5
225
315
mW
μW
μW
D
Conversion Done (ꢁ
Conversion Done (ꢁ
+ ꢁ
OVDD
+ ꢁ
OVDD
+ ꢁ )
REF
REF
VDD
VDD
+ ꢁ , H-Grade)
ADC TIMING CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. ꢂNote 4x
SYMꢁOꢀ
PARAMETER
CONDITIONS
MIN
TYP
MAX
1.6
UNITS
Msps
ns
l
l
l
l
l
l
l
l
l
l
f
t
t
t
t
t
t
t
t
t
Maximum Sampling Frequency
Conversion Time
SMPL
COIV
ACQ
360
200
625
20
412
Acquisition Time
t
= t
– t
– t (Iote 10)
ꢀUSYLH
ns
ACQ
CYC
COIV
Time ꢀetween Conversions
CIV High Time
ns
CYC
ns
CIVH
ꢀUSYLH
CIVL
QUꢁET
SCK
C = 20pF
L
13
ns
CIV↑ to ꢀUSY Delay
Minimum Low Time for CIV
SCK Quiet Time from CIV↑
SCK Period
(Iote 11)
(Iote 10)
20
20
10
4
ns
ns
(Iotes 11, 12)
ns
SCK High Time
ns
SCKH
237918fa
4
Linear Systems [ Linear Systems ]
