LTC1274ISW Datasheet, PDF (3/20 Pages) Linear Integrated Systems – 12-Bit, 10mW, 100ksps ADCs with 1A Shutdown

LTC1274/LTC1277
A ALOG I PUT (Note 5)
SYMBOL PARAMETER
V_IN
Analog Input Range (Note 10)
I_IN
Analog Input Leakage Current
C_IN
Analog Input Capacitance
CONDITIONS
4.75V ≤ V_DD ≤ 5.25V (Unipolar)
4.75V ≤ V_DD ≤ 5.25V, – 5.25V ≤ V_SS ≤ – 2.45V (Bipolar)
CS = High
Between Conversions (Sample Mode)
During Conversions (Hold Mode)
DY A IC ACCURACY ^{(Notes 5, 9)}
SYMBOL PARAMETER
CONDITIONS
S/(N + D) Signal-to-Noise
Plus Distortion Ratio
50kHz Input Signal
100kHz Input Signal
THD
Total Harmonic Distortion
Up to 5th Harmonic
50kHz Input Signal
100kHz Input Signal
Peak Harmonic or
Spurious Noise
50kHz Input Signal
100kHz Input Signal
IMD
Intermodulation Distortion
fa = 96.95kHz, fb = 97.68kHz
2nd Order Terms
3rd Order Terms
Full Power Bandwidth
Full Linear Bandwidth
[S/(N + D) ≥ 68dB]
UU
U
I TER AL REFERE CE CHARACTERISTICS ^{(Note 5)}
PARAMETER
CONDITIONS
V_REF Output Voltage
I_OUT = 0
V_REF Output Tempco
I_OUT = 0
V_REF Line Regulation
4.75V ≤ V_DD ≤ 5.25V
– 5.25V ≤ V_SS ≤ – 4.75V
V_REF Load Regulation
– 5mA ≤ I_OUT ≤ 70µA
U
U
DIGITAL I PUTS A D DIGITAL OUTPUTS
(Note 5)
SYMBOL PARAMETER
V_IH
High Level Input Voltage
V_IL
Low Level Input Voltage
I_IN
Digital Input Current
C_IN
Digital Input Capacitance
V_OH
High Level Output Voltage, All Logic Outputs
V_OL
Low Level Output Voltage,
All Logic Outputs
CONDITIONS
V_DD = 5.25V
V_DD = 4.75V
V_IN = 0V to V_DD
V_DD = 4.75V
I_O = – 10µA
I_O = – 200µA
V_LOGIC = 2.7V (LTC1277)
I_O = – 10µA
I_O = – 200µA
V_DD = 4.75V
I_O = 160µA
I_O = 1.6mA
V_LOGIC =2.7V (LTC1277)
I_O = 160µA
I_O = 1.6mA
MIN TYP MAX
●
0 to 4.096
●
± 2.048
●
±1
45
5
UNITS
V
V
µA
pF
pF
MIN TYP MAX UNITS
73
dB
● 70
72.5
dB
– 84
dB
●
– 82 – 76
dB
– 84
dB
●
– 82 – 76
dB
– 78
dB
– 81
dB
2
MHz
350
kHz
MIN
2.400
●
TYP
2.420
±10
0.01
0.01
2
MAX
2.440
±45
UNITS
V
ppm/°C
LSB/V
LSB/V
LSB/mA
MIN TYP MAX UNITS
● 2.4
V
●
0.8
V
●
±10
µA
5
pF
4.70
V
● 4.0
V
2.65
V
2.60
V
0.05
V
●
0.10 0.4
V
0.05
V
0.10
V
3