MAX1183
Dual 10-Bit, 40Msps, 3V, Low-Power ADC with
Internal Reference and Parallel Outputs
_______________________________________________________________________________________ 5
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
= 40MHz, 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
CLK Pulse Width High t
CH
Figure 3, clock period: 25ns
12.5
±3.8
ns
CLK Pulse Width Low t
CL
Figure 3, clock period: 25ns
12.5
±3.8
ns
Wake up from sleep mode (Note 6) 0.41
Wake-Up Time t
WAKE
Wake up from shutdown (Note 6) 1.5
µs
CHANNEL-TO-CHANNEL MATCHING
Crosstalk f
INA or B
= 20MHz at -0.5dBFS -70 dB
Gain Matching f
INA or B
= 20MHz at -0.5dBFS 0.02 ±0.2 dB
Phase Matching f
INA or B
= 20MHz at -0.5dBFS 0.25 Degrees
Note 1: Equivalent dynamic performance is obtainable over full OV
DD
range with reduced C
L
.
Note 2: Specifications at ≥ +25°C are guaranteed by production test and < +25°C are guaranteed by design and characterization.
Note 3: SNR, SINAD, THD, SFDR, and HD3 are based on an analog input voltage of -0.5dBFS referenced to a 1.024V full-scale
input voltage range.
Note 4: 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 5: Digital outputs settle to V
IH
, V
IL
. Parameter guaranteed by design.
Note 6: With REFIN driven externally, REFP, COM, and REFN are left floating while powered down.
Typical Operating Characteristics
(V
DD
= 3V, OV
DD
= 2.5V, V
REFIN
= 2.048V, differential input at -0.5dBFS, f
CLK
= 40.0006MHz, C
L
≈ 10pF, T
A
= +25°C, unless
otherwise noted.)
-100
-80
-90
-60
-70
-40
-50
-30
-10
-20
0
046821012141816 20
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1183 toc01
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
f
CLK
= 40.0006MHz
f
INA
= 7.5343MHz
f
INB
= 6.1475MHz
A
INA
= -0.498dBFS
HD3
HD2
CHA
-100
-80
-90
-60
-70
-40
-50
-30
-10
-20
0
0 46821012141816 20
FFT PLOT CHB (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1183 toc02
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
f
CLK
= 40.0006MHz
f
INB
= 6.1475MHz
f
INA
= 7.5343MHz
A
INB
= -0.534dBFS
HD3
HD2
CHB
-100
-80
-90
-60
-70
-40
-50
-30
-10
-20
0
0 46821012141816 20
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1183 toc03
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
f
CLK
= 40.0006MHz
f
INA
= 24.9662MHz
f
INB
= 19.888MHz
A
INA
= -0.552dBFS
HD3
HD2
CHA
