Rainbow Electronics MAX1183 - Manual (Page 5)

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 10k Ω 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 Figure 3, clock period: 25ns
12.5
±3.8
ns
Wake up from sleep mode (Note 4) 0.41
Wake-Up Time t WAKE
Wake up from shutdown (Note 4) 1.5
µs
CHANNEL-TO-CHANNEL MATCHING
Crosstalk f INA or B = 20MHz at -0.5dB FS -70 dB
Gain Matching f INA or B = 20MHz at -0.5dB FS 0.02 ±0.2 dB
Phase Matching f INA or B = 20MHz at -0.5dB FS 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.)
-100
-80
-90
-60
-70
-40
-50
-30
-10
-20
0
0 4 6 8 2 10 12 14 18 16 20
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1183 toc01
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
CHA f CLK = 40.0005678MHz
f INA = 7.5342866MHz
f INB = 6.1475482MHz
AINA = -0.498dB FS
HD3
HD2
-100
-80
-90
-60
-70
-40
-50
-30
-10
-20
0
0 4 6 8 2 10 12 14 18 16 20
FFT PLOT CHB (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1183 toc02
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
CHB f CLK = 40.0005678MHz
f INB = 6.1475482MHz
f INA = 7.524866MHz
AINB = -0.534dB FS
HD3
HD2
-100
-80
-90
-60
-70
-40
-50
-30
-10
-20
0
0 4 6 8 2 10 12 14 18 16 20
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
MAX1183 toc03
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
CHA f CLK = 40.0005678MHz
f INA = 24.9661747MHz
f INB = 19.8879776MHz
AINA = -0.552dB FS
HD3
HD2