Datasheet
ADS58B18
ADS58B19
SBAS487D – NOVEMBER 2009– REVISED JANUARY 2011
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ELECTRICAL CHARACTERISTICS: ADS58B18/ADS58B19
Typical values are at +25°C, AVDD = 1.8V, AVDD_BUF = 3.3V, DRVDD = 1.8V, 50% clock duty cycle, –1dBFS differential
analog input, and DDR LVDS interface, unless otherwise noted. Minimum and maximum values are across the full
temperature range:
T
MIN
= –40°C to T
MAX
= +85°C, AVDD = 1.8V, and DRVDD = 1.8V.
ADS58B18 ADS58B19
PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT
Resolution 11 9 Bits
f
IN
= 10MHz 66.3 55.8 dBFS
f
IN
= 70MHz 66.2 55.8 dBFS
SNR (signal-to-noise ratio), LVDS f
IN
= 100MHz 66.1 55.8 dBFS
f
IN
= 170MHz 64.5 66 54.7 55.8 dBFS
f
IN
= 300MHz 65.3 55.8 dBFS
f
IN
= 10MHz 66.2 55.8 dBFS
f
IN
= 70MHz 66.1 55.8 dBFS
SINAD (signal-to-noise and distortion ratio),
f
IN
= 100MHz 66 55.8 dBFS
LVDS
f
IN
= 170MHz 64 65.8 54.2 55.8 dBFS
f
IN
= 300MHz 64.8 55.7 dBFS
f
IN
= 10MHz 87.5 76.5 dBc
f
IN
= 70MHz 87 76.2 dBc
Spurious-free dynamic range SFDR f
IN
= 100MHz 87 76.1 dBc
f
IN
= 170MHz 71 81 68.5 76 dBc
f
IN
= 300MHz 75 75.7 dBc
f
IN
= 10MHz 86.5 85 dBc
f
IN
= 70MHz 85 80 dBc
Total harmonic distortion THD f
IN
= 100MHz 84 79 dBc
f
IN
= 170MHz 70 81 67.5 80.5 dBc
f
IN
= 300MHz 74.5 71.5 dBc
f
IN
= 10MHz 90 88 dBc
f
IN
= 70MHz 91 89 dBc
Second-harmonic distortion HD2 f
IN
= 100MHz 92 85 dBc
f
IN
= 170MHz 71 87 68.5 85 dBc
f
IN
= 300MHz 79 75 dBc
f
IN
= 10MHz 87.5 89 dBc
f
IN
= 70MHz 87 90 dBc
Third-harmonic distortion HD3 f
IN
= 100MHz 87 82 dBc
f
IN
= 170MHz 76 81 68.5 85 dBc
f
IN
= 300MHz 75 75 dBc
f
IN
= 10MHz 91 76.5 dBc
f
IN
= 70MHz 91 76.2 dBc
Worst spur
f
IN
= 100MHz 90 76.1 dBc
(other than second and third harmonics)
f
IN
= 170MHz 76 89 68.5 76 dBc
f
IN
= 300MHz 88 76 dBc
Two-tone intermodulation f
1
= 185MHz, f
2
= 190MHz,
IMD –86 –86 dBFS
distortion each tone at –7dBFS
Recovery to within 1% (of final
Clock
Input overload recovery value) for 6dB overload with 1 1
cycles
sine-wave input
For 100mV
PP
signal on AVDD
AC power-supply rejection ratio PSRR > 30 > 30 dB
supply, up to 10MHz
Effective number of bits ENOB f
IN
= 170MHz 10.6 9 LSBs
Differential nonlinearity DNL f
IN
= 170MHz –0.7 ±0.25 2 –0.6 ±0.15 0.85 LSBs
Integral nonlinearity INL f
IN
= 170MHz ±0.5 ±2.5 ±0.25 ±1.2 LSBs
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