Datasheet

MAX1192
Ultra-Low-Power, 22Msps, Dual 8-Bit ADC
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 3.0V, OV
DD
= 1.8V, V
REFIN
= V
DD
(internal reference), C
L
≈ 10pF at digital outputs, f
CLK
= 22MHz, C
REFP
= C
REFN
= C
COM
=
0.33µF, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS MIN TYP
MAX
UNITS
f
IN
= 1.875MHz 70.8
f
IN
= 5.5MHz 59.0 70.0
Spurious-Free Dynamic Range
(Note 2)
SFDR
f
IN
= 11MHz 70.4
dBc
f
IN
= 1.875MHz 75.8
f
IN
= 5.5MHz
-74.0
Thi r d - H ar m oni c D i stor ti on
( N ote 2)
HD3
f
IN
= 11MHz
-74.8
dBc
Intermodulation Distortion IMD
f
IN1
= 1MHz at -7dB FS, f
IN2
= 1.01MHz at
-7dB FS
-64
dBc
Third-Order Intermodulation IM3
f
IN1
= 1MHz at -7dB FS, f
IN2
= 1.01MHz at
-7dB FS
-67
dBc
f
IN
= 1.875MHz
-71.0
f
IN
= 5.5MHz
-70.0 -57.0
Total Harmonic Distortion
(Note 2)
THD
f
IN
= 11MHz
-70.2
dBc
Small-Signal Bandwidth
SSBW
Input at -20dB FS 440
MHz
Full-Power Bandwidth
FPBW
Input at -0.5dB FS 440
MHz
Aperture Delay t
AD
1.5 ns
Aperture Jitter t
AJ
2
ps
RMS
Overdrive Recovery Time 1.5 × full-scale input 2 ns
INTERNAL REFERENCE (REFIN = V
DD
; V
REFP
, V
REFN
, and V
COM
are generated internally)
REFP Output Voltage V
REFP
- V
COM
0.256
V
REFN Output Voltage V
REFN
- V
COM
-0.256
V
COM Output Voltage
V
COM
V
DD
/ 2
- 0.15
V
DD
/ 2
V
DD
/ 2
+ 0.15
V
Differential Reference Output
V
REF
V
REFP
- V
REFN
0.512
V
Differential Reference Output
Temperature Coefficient
V
REFTC
±30
ppm/°C
Maximum REFP/REFN/COM
Source Current
I
SOURCE
2mA
Maximum REFP/REFN/COM Sink
Current
I
SINK
2mA
BUFFERED EXTERNAL REFERENCE (V
REFIN
= 1.024V, V
REFP
, V
REFN
, and V
COM
are generated internally)
REFIN Input Voltage
V
REFIN
1.024
V
COM Output Voltage
V
COM
V
DD
/ 2
- 0.15
V
DD
/ 2
V
DD
/ 2
+ 0.15
V
Differential Reference Output
V
REF
V
REFP
- V
REFN
0.512
V
Maximum REFP/REFN/COM
Source Current
I
SOURCE
2mA