MAX1185_10 Datasheet, PDF (3/21 Pages) Maxim Integrated Products – Dual 10-Bit, 20Msps, 3V, Low-Power ADC with Internal Reference and Multiplexed Parallel Outputs

Dual 10-Bit, 20Msps, 3V, Low-Power ADC with
Internal Reference and Multiplexed Parallel Outputs
ELECTRICAL CHARACTERISTICS (continued)
(V_DD = 3V, OV_DD = 2.5V, 0.1µF and 1µF capacitors from REFP, REFN, and COM to GND; REFOUT connected to REFIN through a
10kΩ resistor, V_IN = 2Vp-p (differential w.r.t. 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
Total Harmonic Distortion
(First 4 Harmonics) (Note 3)
Third-Harmonic Distortion
(Note 3)
Intermodulation Distortion
Small-Signal Bandwidth
Full-Power Bandwidth
Aperture Delay
Aperture Jitter
Overdrive Recovery Time
Differential Gain
Differential Phase
Output Noise
INTERNAL REFERENCE
SYMBOL
CONDITIONS
THD
HD3
f_{INA or B} = 7.5MHz, T_A = +25°C
f_{INA or B} = 12MHz
f_{INA or B} = 7.5MHz
f_{INA or B} = 12MHz
IMD
f_{INA or B} = 11.9852MHz at -6.5dBFS,
f_{INA or B} = 12.8934MHz at -6.5dBFS (Note 4)
Input at -20dBFS, differential inputs
FPBW Input at -0.5dBFS, differential inputs
t_AD
t_AJ
For 1.5x full-scale input
INA+ = INA- = INB+ = INB- = COM
MIN TYP MAX UNITS
-72
-64
dBc
-71
-74
dBc
-72
-76
dBc
500
400
1
2
2
±1
±0.25
0.2
MHz
MHz
ns
ps_RMS
ns
%
D egr ees
LSB_RMS
Reference Output Voltage
REFOUT
2.048
±3%
V
Reference Temperature
Coefficient
TC_REF
Load Regulation
BUFFERED EXTERNAL REFERENCE (V_REFIN = 2.048V)
REFIN Input Voltage
V_REFIN
Positive Reference Output
Voltage
V_REFP
60
1.25
2.048
2.012
ppm/°C
mV/mA
V
V
Negative Reference Output
Voltage
V_REFN
0.988
V
Differential Reference Output
Voltage Range
REFIN Resistance
∆VREF ∆V_REF = V_REFP - V_REFN
R_REFIN
0.95 1.024 1.10
V
> 50
MΩ
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