MAX1183 Datasheet, PDF (5/18 Pages) Maxim Integrated Products – Dual 10-Bit, 40Msps, +3V, Low-Power ADC with Internal Reference and Parallel Outputs

Dual 10-Bit, 40Msps, +3V, Low-Power ADC with
Internal Reference and Parallel Outputs
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 = 2Vp-p (differential with respect to COM), C_L = 10pF at digital outputs (Note 5), f_CLK = 40MHz, T_A = T_MIN to
T_MAX, unless otherwise noted. Typical values are at T_A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
CLK Pulse Width High
t_CH
Figure 3, clock period: 25ns
12.5
±3.8
ns
CLK Pulse Width Low
t_CL
Wake-Up Time
t_WAKE
CHANNEL-TO-CHANNEL MATCHING
Crosstalk
Gain Matching
Phase Matching
Figure 3, clock period: 25ns
Wake up from sleep mode (Note 4)
Wake up from shutdown (Note 4)
f_{INA or B} = 20MHz at -0.5dB FS
f_{INA or B} = 20MHz at -0.5dB FS
f_{INA or B} = 20MHz at -0.5dB FS
12.5
±3.8
ns
0.41
µs
1.5
-70
dB
0.02 ±0.2
dB
0.25
Degrees
Note 1: SNR, SINAD, THD, SFDR, and HD3 are based on an analog input voltage of -0.5dB FS referenced to a +1.024V full-scale
input voltage range.
Note 2: Intermodulation distortion is the total power of the intermodulation products relative to the individual carrier. This number is
6dB better, if referenced to the two-tone envelope.
Note 3: Digital outputs settle to V_IH, V_IL. Parameter guaranteed by design.
Note 4: With REFIN driven externally, REFP, COM, and REFN are left floating while powered down.
Note 5: Equivalent dynamic performance is obtainable over full OV_DD range with reduced C_L.
Typical Operating Characteristics
(V_DD = +3V, OV_DD = +2.5V, V_REFIN = +2.048V, differential input at -0.5dB FS, f_CLK = 40.0006MHz, C_L ≈ 10pF, T_A = +25°C, unless
otherwise noted.)
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
CHA
-10
-20
-30
f_CLK = 40.0005678MHz
f_INA = 7.5342866MHz
f_INB = 6.1475482MHz
AINA = -0.498dB FS
-40
-50
-60
HD3
-70
HD2
-80
-90
-100
0
2 4 6 8 10 12 14 16 18 20
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT CHB (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
CHB
-10
-20
-30
f_CLK = 40.0005678MHz
f_INB = 6.1475482MHz
f_INA = 7.524866MHz
AINB = -0.534dB FS
-40
-50
-60
HD3
-70
HD2
-80
-90
-100
0
2 4 6 8 10 12 14 16 18 20
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
-10
f_CLK = 40.0005678MHz
f_INA = 24.9661747MHz
CHA
-20 ^fINB ^{= 19.8879776MHz}
AINA = -0.552dB FS
-30
-40
-50
-60
HD3
-70
HD2
-80
-90
-100
0
2 4 6 8 10 12 14 16 18 20
ANALOG INPUT FREQUENCY (MHz)
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