LTC1403-1 Datasheet, PDF (3/20 Pages) Linear Technology – Serial 12-Bit/14-Bit, 2.8Msps Sampling ADCs with Shutdown

LTC1403-1/LTC1403A-1
DY A IC ACCURACY The q denotes the specifications which apply over the full operating temperature range,
otherwise specifications are
V_CM = 1.5V at A_IN+ and A_IN–
at
T_A
=
25°C.
V_DD
=
3V.
Single-ended
A_IN+
signal
drive
with
A_IN–
=
1.5V
DC.
Differential
signal
drive
with
SYMBOL PARAMETER
CONDITIONS
LTC1403-1
MIN TYP MAX
SINAD
THD
Signal-to-Noise Plus
Distortion Ratio
Total Harmonic
Distortion
100kHz Input Signal (Note 19)
1.4MHz Input Signal (Note 19)
100kHz Input Signal, External V_REF = 3.3V,
V_DD ≥ 3.3V (Note 19)
750kHz Input Signal, External V_REF = 3.3V,
V_DD ≥ 3.3V (Note 19)
100kHz First 5 Harmonics (Note 19)
1.4MHz First 5 Harmonics (Note 19)
70.5
q 68 70.5
72
72
–87
q
–83 –76
SFDR Spurious Free
100kHz Input Signal (Note 19)
–87
Dynamic Range
1.4MHz Input Signal (Note 19)
–83
IMD
Intermodulation
0.625V_P-P 1.4MHz Summed with 0.625V_P-P
–82
Distortion
1.56MHz into A_IN+ and Inverted into A_IN–
Code-to-Code
V_REF = 2.5V (Note 18)
0.25
Transition Noise
Full Power Bandwidth V_IN = 2.5V_P-P, SDO = 11585LSB_P-P (Note 15)
50
Full Linear Bandwidth S/(N + D) ≥ 68dB
5
LTC1403A-1
MIN TYP MAX
73.5
70 73.5
76.3
76.3
UNITS
dB
dB
dB
dB
–90
dB
–86 –78
dB
–90
dB
–86
dB
–82
dB
1
LSB_RMS
50
MHz
5
MHz
UU
U
I TER AL REFERE CE CHARACTERISTICS The q denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T_A = 25°C. V_DD = 3V
PARAMETER
V_REF Output Voltage
V_REF Output Tempco
V_REF Line Regulation
V_REF Output Resistance
V_REF Settling Time
CONDITIONS
I_OUT = 0
V_DD = 2.7V to 3.6V, V_REF = 2.5V
Load Current = 0.5mA
MIN TYP MAX
UNITS
2.5
V
15
ppm/°C
600
µV/V
0.2
Ω
2
ms
DIGITAL I PUTS A D DIGITAL OUTPUTS The q denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T_A = 25°C. V_DD = 3V
SYMBOL
V_IH
V_IL
I_IN
C_IN
V_OH
V_OL
PARAMETER
High Level Input Voltage
Low Level Input Voltage
Digital Input Current
Digital Input Capacitance
High Level Output Voltage
Low Level Output Voltage
I_OZ
C_OZ
I_SOURCE
I_SINK
Hi-Z Output Leakage D_OUT
Hi-Z Output Capacitance D_OUT
Output Short-Circuit Source Current
Output Short-Circuit Sink Current
CONDITIONS
V_DD = 3.3V
V_DD = 2.7V
V_IN = 0V to V_DD
(Note 20)
V_DD = 3V, I_OUT = – 200µA
V_DD = 2.7V, I_OUT = 160µA
V_DD = 2.7V, I_OUT = 1.6mA
V_OUT = 0V to V_DD
V_OUT = 0V, V_DD = 3V
V_OUT = V_DD = 3V
MIN TYP MAX
q 2.4
q
0.6
q
± 10
5
q 2.5
2.9
0.05
q
0.10
0.4
q
± 10
1
20
15
UNITS
V
V
µA
pF
V
V
V
µA
pF
mA
mA
14031f
3