ADS5292_13 Datasheet, PDF (7/67 Pages) Texas Instruments – Octal Channel 12-Bit, 80 MSPS and Low-Power ADC

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ADS5292
SLAS788B – NOVEMBER 2011 – REVISED JULY 2012
ELECTRICAL CHARACTERISTICS DYNAMIC PERFORMANCE
Typical values are at 25°C, AVDD = 1.8V, LVDD = 1.8V, 50% clock duty cycle, –1dBFS differential analog input, 12Bit/80
MSPS, ADC is configured in internal reference mode (unless otherwise noted). MIN and MAX values are across the full
temperature range T_MIN = –40°C to T_MAX = 85°C, AVDD = 1.8 V, LVDD = 1.8 V.
PARAMETERS
CONDITIONS
MIN TYP MAX UNITS
AC PERFORMANCE
SNR
SINAD
ENOB
DNL
INL
SFDR
THD
HD2
HD3
IMD3
Signal-to-noise ratio
Signal-to-noise and distortion
ratio
Effective number of bits
Differential nonlinearity
Integral nonlinearity
Spurious-free dynamic range
Total harmonic distortion
Second-harmonic distortion
Third-harmonic distortion
Worst spur excluding HD2, HD3
Intermodualtion distortion
Overload recovery
f_in = 5 MHz, 80 MSPS. 14 bits mode
f_in = 5 MHz, 80 MSPS
f_in = 30 MHz, 80 MSPS
f_in = 5 MHz, 80 MSPS, Decimation filter=2
f_in = 5 MHz, 80 MSPS
f_in = 30 MHz, 80 MSPS
f_in = 5 MHz
f_in = 5 MHz
f_in = 5 MHz
f_in = 5 MHz
f_in = 30 MHz
f_in = 5 MHz
f_in = 30 MHz
f_in = 5 MHz
f_in = 30 MHz
f_in = 5 MHz
f_in = 30 MHz
f_in = 5 MHz
f_in = 30 MHz
f_in = 65 MHz
f_in = 5 MHz at –7 dBFS, f₂ = 10 MHz at –7 dBFS
Recovery to within 1% of full scale value for 6-dB overload with sine wave
input
72
67.5 70
69.8
71.5
69.8
69.3
11.3
–0.8 ±0.05
0.4
72.5 85
80
71 81.5
78
72.5 88
80
72.5 85
78.5
91
83
76
82
1
dBFS
dBFS
LSB
0.8 LSB
1 LSB
dBc
dBc
dBc
dBc
dBc
dBc
Clock
Cycle
XTALK Cross-talk
f_in = 10 MHz; V_OUT = –1 dBFS signal applied on
aggressor channel no signal applied on victim
channel
far channel
near channel
90
dB
85
Phase noise
5 MHz, 1 kHz off carrier
–138
dBc/Hz
ANALOG INPUT/OUTPUT
Differential input voltage range
(0-dB gain)
2
Vpp
Rin
Differential Input Resistance
At DC
2
kΩ
Cin
Differential Input Capacitance At DC
2.2
pF
Analog input bandwidth
With a 50 Ω source impedance
550
MHz
Analog input common-mode
current (per input pin)
1.6
µA/MSP
S
VCM common-mode output
voltage
0.95
V
VCM output current capability
5
mA
DC ACCURACY
Offset error
Across devices and across channels within a device
–20
20 mV
Temperature coefficient of offset
error
<0.01
mV/°C
E_GREF
Gain error due to internal
reference inaccuracy alone
–2
2 %FS
E_GCHAN
Gain error of channel alone
Temperature coefficent of
E_GCHAN
0.5
<0.01
%FS
%FS/°C
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