LTC2315-12
REFERENCE INPUT/OUTPUT The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 4)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
l
l
V
V
Output Voltage
2.7V ≤ V ≤ 3.6V
2.040
4.080
2.048
4.096
2.056
4.112
V
V
REF
REF
DD
4.75 ≤ V ≤ 5.25V
DD
l
V
V
Temperature Coefficient
Output Resistance
7
20
ppm/°C
REF
Normal Operation
2
52
Ω
kΩ
REF
Overdrive Condition
(V
≥ V
+ 50mV)
REFOUT
REFIN
V
REF
Line Regulation
2.7V ≤ V ≤ 3.6V
2
0.8
mV/V
mV/V
DD
4.75 ≤ V ≤ 5.25V
DD
V
V
V
2.048V/4.096V Supply Threshold
2.048V/4.096V Supply Threshold Hysteresis
Input Voltage Range
4.15
150
V
REF
REF
REF
mV
l
l
2.7V ≤ V ≤ 3.6V
V
REF
+50mV
+50mV
V
DD
4.3
V
V
DD
REF
(External Reference Input)
4.75 ≤ V ≤ 5.25V
V
DD
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. (Note 4)
SYMBOL PARAMETER
CONDITIONS
MIN
0.8 • OV
TYP
MAX
UNITS
V
l
l
l
V
V
High Level Input Voltage
Low Level Input Voltage
Digital Input Current
IH
IL
DD
0.2 • OV
V
DD
I
V
= 0V to OV
DD
–10
10
μA
pF
IN
IN
C
V
V
Digital Input Capacitance
High Level Output Voltage
Low Level Output Voltage
High-Z Output Leakage Current
High-Z Output Capacitance
Output Source Current
Output Sink Current
5
IN
l
l
l
I = –500µA (Source)
O
OV –0.2
DD
V
OH
OL
I = 500µA (Sink)
O
0.2
10
V
I
OZ
V
= 0V to OV , CS = High
–10
µA
pF
OUT
DD
C
OZ
CS = High
4
I
I
V
V
= 0V, OV = 1.8V
–20
20
mA
mA
SOURCE
SINK
OUT
OUT
DD
= OV = 1.8V
DD
POWER REQUIREMENTS The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
DD
Supply Voltage
3V Operational Range
5V Operational Range
l
l
2.7
4.75
3
5
3.6
5.25
V
V
l
OV
DD
Digital Output Supply Voltage
1.71
5.25
V
l
l
I
=
IOV
Supply Current, Static Mode
Operational Mode
Nap Mode
CS = 0V, SCK = 0V
CS = 0V, SCK = 0V
3.5
6.4
1.8
0.8
4
mA
mA
mA
µA
TOTAL
DD +
IV
7.5
DD
l
Sleep Mode
5
l
l
P
Power Dissipation, Static Mode
Operational Mode
Nap Mode
17.5
32
9
20
37.5
mW
mW
mW
µW
D
l
Sleep Mode
4
25
231512fa
4
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