LTC2314-14_15 Datasheet, PDF (4/22 Pages) Linear Technology – 14-Bit, 4.5Msps Serial Sampling ADC in TSOT

LTC2314-14
REFERENCE INPUT/OUTPUT 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
CONDITIONS
MIN TYP MAX UNITS
V_REF
V_REF Output Voltage
2.7V ≤ V_DD ≤ 3.6V
4.75 ≤ V_DD ≤ 5.25V
V_REF Temperature Coefficient
V_REF Output Resistance
Normal Operation
Overdrive Condition
(V_REFIN ≥ V_REFOUT + 50mV)
V_REF Line Regulation
2.7V ≤ V_DD ≤ 3.6V
4.75 ≤ V_DD ≤ 5.25V
V_REF 2.048V/4.096V Supply Threshold
V_REF 2.048V/4.096V Supply Threshold Hysteresis
V_REF Input Voltage Range
(External Reference Input)
2.7V ≤ V_DD ≤ 3.6V
4.75 ≤ V_DD ≤ 5.25V
l 2.040 2.048 2.056
V
l 4.080 4.096 4.112
V
l
7
20
ppm/°C
2
Ω
52
kΩ
0.4
0.2
4.15
150
l V_REF + 50mV
V_DD
l V_REF +50mV
4.3
mV/V
mV/V
V
mV
V
V
DIGITAL INPUTS AND DIGITAL OUTPUTS 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
CONDITIONS
MIN
TYP
MAX UNITS
V_IH
V_IL
I_IN
C_IN
V_OH
V_OL
I_OZ
C_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
High-Z Output Leakage Current
High-Z Output Capacitance
Output Source Current
Output Sink Current
V_IN = 0V to OV_DD
I_O = –500µA (Source)
I_O = 500µA (Sink)
V_OUT = 0V to OV_DD, CS = High
CS = High
V_OUT = 0V, OV_DD = 1.8V
V_OUT = OV_DD = 1.8V
l 0.8 • OV_DD
l
l –10
V
0.2 • OV_DD
V
10
μA
5
pF
l OV_DD–0.2
l
V
0.2
V
l –10
10
µA
4
pF
–20
mA
20
mA
POWER REQUIREMENTS 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
CONDITIONS
MIN TYP MAX UNITS
V_DD
Supply Voltage
3V Operational Range
5V Operational Range
l 2.7
3
3.6
V
l 4.75
5
5.25
V
OV_DD
I_TOTAL =
I_{VDD +} I_OVDD
Digital Output Supply Voltage
Supply Current, Static Mode
Operational Mode
Nap Mode
Sleep Mode
CS = 0V, SCK = 0V
l 1.71
5.25
V
l
3.2
4
mA
l
6.2
7.2
mA
1.8
mA
l
0.8
5
µA
P_D
Power Dissipation, Static Mode
Operational Mode
Nap Mode
Sleep Mode
CS = 0V, SCK = 0V
l
16
20
mW
l
31
36
mW
9
mW
l
4
25
µW
231414fa
4
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