Linear Technology DC1082A-D - LTC1403A, 14-bit 1-ch 2.8Msps SAR ADC (Unipolar, req DC890) DC1082A-D DC1082A-D Data Sheet
Product codes
DC1082A-D
LTC1403/LTC1403A
3
1403fb
The
●
denotes the specifi cations which apply over the full operating temperature range,
otherwise specifi cations are at T
A
= 25°C. V
DD
= 3V
DYNAMIC ACCURACY
SYMBOL
PARAMETER
CONDITIONS
LTC1403/LTC1403H
LTC1403A/LTC1403AH
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
SINAD
Signal-to-Noise Plus
Distortion Ratio
Distortion Ratio
100kHz Input Signal
1.4MHz Input Signal
1.4MHz Input Signal (H Grade)
100kHz Input Signal, External V
1.4MHz Input Signal
1.4MHz Input Signal (H Grade)
100kHz Input Signal, External V
REF
= 3.3V,
V
DD
≥ 3.3V
750kHz Input Signal, External V
REF
= 3.3V,
V
DD
≥ 3.3V
●
●
●
68
67
67
70.5
70.5
70.5
70.5
70.5
72
72
70
69
69
73.5
73.5
73.0
76.3
73.5
73.0
76.3
76.3
dB
dB
dB
dB
dB
dB
dB
dB
THD
Total Harmonic
Distortion
Distortion
100kHz First 5 Harmonics
1.4MHz First 5 Harmonics
1.4MHz First 5 Harmonics
●
–87
–83
–83
–76
–90
–86
–86
–78
dB
dB
dB
SFDR
Spurious Free
Dynamic Range
Dynamic Range
100kHz Input Signal
1.4MHz Input Signal
1.4MHz Input Signal
–87
–83
–83
–90
–86
–86
dB
dB
dB
IMD
Intermodulation
Distortion
Distortion
1.25V to 2.5V 1.25MHz into A
IN
+
, 0V to 1.25V,
1.2MHz into A
IN
–
–82
–82
dB
Code-to-Code
Transition Noise
Transition Noise
V
REF
= 2.5V (Note 18)
0.25
1
LSB
RMS
Full Power Bandwidth
V
IN
= 2.5V
P-P
, SDO = 11585LSB
P-P
(Note 15)
50
50
MHz
Full Linear Bandwidth
S/(N + D) ≥ 68dB
5
5
MHz
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
IH
High Level Input Voltage
V
DD
= 3.3V
●
2.4
V
V
IL
Low Level Input Voltage
V
DD
= 2.7V
●
0.6
V
I
IN
Digital Input Current
V
IN
= 0V to V
DD
●
±10
μA
C
IN
Digital Input Capacitance
5
pF
V
OH
High Level Output Voltage
V
DD
= 3V, I
OUT
= –200μA
●
2.5
2.9
V
V
OL
Low Level Output Voltage
V
DD
= 2.7V, I
OUT
= 160μA
V
DD
= 2.7V, I
OUT
= 1.6mA
●
0.05
0.10
0.10
0.4
V
V
V
I
OZ
Hi-Z Output Leakage D
OUT
V
OUT
= 0V to V
DD
●
±10
μA
C
OZ
Hi-Z Output Capacitance D
OUT
1
pF
I
SOURCE
Output Short-Circuit Source Current
V
OUT
= 0V, V
DD
= 3V
20
mA
I
SINK
Output Short-Circuit Sink Current
V
OUT
= V
DD
= 3V
15
mA
The
●
denotes the specifi cations which apply over the full
operating temperature range, otherwise specifi cations are at T
A
= 25°C. V
DD
= 3V
DIGITAL INPUTS AND DIGITAL OUTPUTS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
REF
Output Voltage
I
OUT
= 0
2.5
V
V
REF
Output Tempco
15
ppm//°C
V
REF
Line Regulation
V
DD
= 2.7V to 3.6V, V
REF
= 2.5V
600
μV/V
V
REF
Output Resistance
Load Current = 0.5mA
0.2
Ω
V
REF
Settling Time
2
ms
The
●
denotes the specifi cations which apply over the
full operating temperature range, otherwise specifi cations are at T
A
= 25°C. V
DD
= 3V
INTERNAL REFERENCE CHHARACTERISTICS