ADS7056
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ZHCSG66 –MARCH 2017
Electrical Characteristics (continued)
at AVDD = 3.3 V, DVDD = 1.65 V to 3.6 V, fSAMPLE = 2.5 MSPS, and VAINM = 0 V (unless otherwise noted); minimum and
maximum values for TA = –40°C to +125°C; typical values at TA = 25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DYNAMIC CHARACTERISTICS
AVDD = 3.3 V
72
74.9
73.7
–85
SNR
Signal-to-noise ratio(5)
dB
AVDD = 2.5 V
fIN = 2 kHz
THD
Total harmonic distortion(5)(6)
fIN = 250 kHz
fIN = 1000 kHz
fIN = 2 kHz
–84.8
–84.5
74.5
73.7
73.7
89.8
88
dB
71.75
SINAD
Signal-to-noise and distortion(5)
fIN = 250 kHz
fIN = 1000 kHz
fIN = 2 kHz
dB
SFDR
BW(fp)
Spurious-free dynamic range(5)
Full-power bandwidth
fIN = 250 kHz
fIN = 1000 kHz
At –3 dB
dB
87.5
200
MHz
DIGITAL INPUT/OUTPUT (CMOS Logic Family)
VIH
VIL
High-level input voltage(7)
Low-level input voltage(7)
0.65 DVDD
DVDD + 0.3
0.35 DVDD
DVDD
V
V
–0.3
At Isource = 500 µA
At Isource = 2 mA
At Isink = 500 µA
At Isink = 2 mA
0.8 DVDD
VOH
High-level output voltage(7)
Low-level output voltage(7)
V
V
DVDD – 0.45
DVDD
0
0
0.2 DVDD
0.45
VOL
POWER-SUPPLY REQUIREMENTS
AVDD
DVDD
Analog supply voltage
2.35
1.65
3
3
3.6
3.6
V
V
Digital I/O supply voltage
AVDD = 3.3 V, fSAMPLE = 2.5 MSPS
AVDD = 3.3 V, fSAMPLE = 100 kSPS
AVDD = 3.3 V, fSAMPLE = 10 kSPS
AVDD = 2.5 V, fSAMPLE = 2.5 MSPS
Static current with CS and SCLK high
1050
48
1250
50
IAVDD
Analog supply current
Digital supply current
5
µA
750
0.02
DVDD = 1.8 V, CSDO = 20 pF,
output code = 2AAAh(8)
630
IDVDD
µA
DVDD = 1.8 V, static current with CS
and SCLK high
0.01
(5) All specifications expressed in decibels (dB) refer to the full-scale input (FSR) and are tested with an input signal 0.5 dB below full-scale,
unless otherwise noted.
(6) Calculated on the first nine harmonics of the input frequency.
(7) Digital voltage levels comply with the JESD8-7A standard for DVDD from 1.65 V to 1.95 V; see the Parameter Measurement Information
section for details.
(8) See the Estimating Digital Power Consumption section for details.
Copyright © 2017, Texas Instruments Incorporated
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