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