Datasheet

MAX1184
Dual 10-Bit, 20Msps, 3V, Low-Power ADC with
Internal Reference and Parallel Outputs
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 3V, OV
DD
= 2.5V, 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; REFOUT connected to REFIN through a
10kΩ resistor, V
IN
= 2V
P-P
(differential with respect to COM), C
L
= 10pF at digital outputs (Note 1), f
CLK
= 20MHz, T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
f
INA or B
= 7.5MHz -74
Third-Harmonic Distortion
(Note 3)
HD3
f
INA or B
= 12MHz -72
dBc
f
INA or B
= 7.5MHz, T
A
= +25°C -72 -64
Total Harmonic Distortion
(First 4 harmonics) (Note 3)
THD
f
INA or B
= 12MHz -71
dBc
f
INA or B
= 11.985MHz at -6.5dBFS
Intermodulation Distortion IMD
f
I N A o r B
= 12.893M H z at - 6.5d BFS ( N ote 4)
-76 dBc
Small-Signal Bandwidth Input at -20dBFS, differential inputs 500 MHz
Full-Power Bandwidth FPBW Input at -0.5dBFS, differential inputs 400 MHz
Aperture Delay t
AD
1ns
Aperture Jitter t
AJ
2ps
RMS
Overdrive Recovery Time For 1.5
x
full-scale input 2 ns
Differential Gain ±1%
Differential Phase ±0.25 d egr ees
Output Noise INA+ = INA- = INB+ = INB- = COM 0.2 LSB
RMS
INTERNAL REFERENCE
Reference Output Voltage REFOUT
2.048
±3%
V
Reference Temperature
Coefficient
TC
REF
60 ppm/°C
Load Regulation 1.25 mV/mA
BUFFERED EXTERNAL REFERENCE (V
REFIN
= 2.048V)
REFIN Input Voltage V
REFIN
2.048 V
Positive Reference Output
Voltage
V
REFP
2.012 V
Negative Reference Output
Voltage
V
REFN
0.988 V
Differential Reference Output
Voltage Range
∆V
REF
∆V
REF
= V
REFP
- V
REFN
0.95 1.024 1.10 V
REFIN Resistance R
REFIN
>50 MΩ