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MAX1121 Datasheet, PDF (3/17 Pages) Maxim Integrated Products – 1.8V, 8-Bit, 250Msps Analog-to-Digital Converter with LVDS Outputs for Wideband Applications
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1.8V, 8-Bit, 250Msps Analog-to-Digital Converter
with LVDS Outputs for Wideband Applications
ELECTRICAL CHARACTERISTICS (continued)
(AVCC = OVCC = 1.8V, AGND = OGND = 0, fSAMPLE = 250MHz, differential sine-wave clock input drive, 0.1µF capacitor on REFIO,
internal reference, digital output pins differential RL = 100Ω ±1%, CL = 5pF, TA = TMIN to TMAX, unless otherwise noted. ≥25°C guar-
anteed by production test, <25°C guaranteed by design and characterization. Typical values are at TA = +25°C.)
PARAMETER
Clock Duty Cycle
Aperture Delay
Aperture Jitter
CLOCK INPUTS (CLKP, CLKN)
Differential Clock Input Amplitude
Clock Input Common-Mode
Voltage Range
SYMBOL
tAD
tAJ
CONDITIONS
Set by clock management circuit
(Note 2)
MIN TYP MAX UNITS
40 to 60
%
350
ps
0.2
psRMS
200
500
1.25
±0.25
mVP-P
V
Clock Differential Input
Resistance
RCLK
11
±25%
kΩ
Clock Differential Input
Capacitance
CCLK
5
pF
DYNAMIC CHARACTERISTICS (at -0.5dBFS)
fIN = 10MHz, TA ≥ +25°C
Signal-to-Noise Ratio
SNR
fIN = 100MHz, TA ≥ +25°C
fIN = 180MHz
fIN = 500MHz
Signal-to-Noise
and Distortion
SINAD
fIN = 10MHz, TA ≥ +25°C
fIN = 100MHz, TA ≥ +25°C
fIN = 180MHz
fIN = 500MHz
fIN = 10MHz, TA ≥ +25°C
Spurious-Free
Dynamic Range
SFDR
fIN = 100MHz, TA ≥ +25°C
fIN = 180MHz
fIN = 500MHz
fIN = 10MHz
Worst Harmonics
(HD2 or HD3)
fIN = 100MHz
fIN = 180MHz
fIN = 500MHz
Two-Tone Intermodulation
Distortion
IMD100
IMD500
fIN1 = 99MHz at -7dBFS,
fIN2 = 101MHz at -7dBFS
fIN1 = 498.5MHz at -7dBFS,
fIN2 = 502.5MHz at -7dBFS
LVDS DIGITAL OUTPUTS (D0P/N–D7P/N, DCLKP/N)
Differential Output Voltage
|VOD|
47.2 48.9
46.2 48.8
dB
48.8
48.7
47.1 48.8
46.1 48.7
dB
48.7
48.6
60
69
59
68
dBc
69.1
63.8
-74.6
-68.4
dBc
-69.1
-63.8
-70
dBc
-56
250
400
mV
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