LTC2245 Datasheet, PDF (3/20 Pages) Linear Technology – 14-Bit, 10Msps Low Power 3V ADC

LTC2245
A ALOG I PUT The ● denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at T_A = 25°C. (Note 4)
SYMBOL
V_IN
V_IN,CM
I_IN
I_SENSE
I_MODE
t_AP
t_JITTER
CMRR
PARAMETER
Analog Input Range (A_IN+ – A_IN–)
Analog Input Common Mode (A_IN+ + A_IN–)/2
Analog Input Leakage Current
SENSE Input Leakage
MODE Pin Leakage
Sample-and-Hold Acquisition Delay Time
Sample-and-Hold Acquisition Delay Time Jitter
Analog Input Common Mode Rejection Ratio
CONDITIONS
2.7V < V_DD < 3.4V (Note 7)
Differential Input (Note 7)
Single Ended Input (Note 7)
0V < A_IN+, A_IN– < V_DD
0V < SENSE < 1V
MIN TYP MAX
●
±0.5V to ±1V
● 1 1.5 1.9
● 0.5 1.5 2
● –1
1
● –3
3
● –3
3
0
0.2
80
UNITS
V
V
V
µA
µA
µA
ns
ps_RMS
dB
DY A IC ACCURACY _{The ● denotes the specifications which apply over the full operating temperature range,}
otherwise specifications are at T_A = 25°C. A_IN = –1dBFS. (Note 4)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
SNR
Signal-to-Noise Ratio
5MHz Input
70MHz Input
● 72.3 74.4
dB
73.2
dB
SFDR
Spurious Free Dynamic Range
2nd or 3rd Harmonic
5MHz Input
70MHz Input
● 76 90
dB
85
dB
SFDR
Spurious Free Dynamic Range
4th Harmonic or Higher
5MHz Input
70MHz Input
● 84 95
dB
95
dB
S/(N+D) Signal-to-Noise Plus Distortion Ratio
5MHz Input
70MHz Input
● 71.7 74.4
dB
73.1
dB
I_MD
Intermodulation Distortion
f_IN1 = 4.3MHz, f_IN2 = 4.6MHz
90
dB
UU
U
I TER AL REFERE CE CHARACTERISTICS (Note 4)
PARAMETER
V_CM Output Voltage
V_CM Output Tempco
V_CM Line Regulation
V_CM Output Resistance
CONDITIONS
I_OUT = 0
2.7V < V_DD < 3.4V
–1mA < I_OUT < 1mA
MIN
1.475
TYP
1.500
±25
3
4
MAX
1.525
UNITS
V
ppm/°C
mV/V
Ω
2245fa
3