ABSOLUTE MAXIMUM RATINGS(1)
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas Instru-
ments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
+VSA, +VSD, VDRV ............................................................................... +6V
Analog Input .......................................................... (–0.3V) to (+VS + 0.3V)
Logic Input ............................................................ (–0.3V) to (+VS + 0.3V)
Case Temperature ......................................................................... +100°C
Junction Temperature .................................................................... +150°C
Storage Temperature ..................................................................... +150°C
NOTE: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may degrade
device reliability. These are stress ratings only, and functional operation of the
device at these or any other conditions beyond those specified is not implied.
ESD damage can range from subtle performance degradation
tocompletedevicefailure. Precisionintegratedcircuitsmaybe
more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.
EVALUATION BOARD
PRODUCT
DESCRIPTION
USER’S GUIDE
ADS5421EVM
Populated Evaluation Board
SBAU084
PACKAGE/ORDERING INFORMATION(1)
SPECIFIED
PACKAGE
DESIGNATOR
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER
TRANSPORT
MEDIA, QUANTITY
PRODUCT
PACKAGE-LEAD
ADS5421Y
LQFP-64
PM
–40°C to +85°C
ADS5421Y
ADS5421Y/T
ADS5421Y/R
Tape and Reel, 250
Tape and Reel, 1500
"
"
"
"
"
NOTE: (1) For the most current package and ordering information, see the Package Option Addendum located at the end of this data sheet.
ELECTRICAL CHARACTERISTICS
TA = specified temperature range, typical at +25°C, +VSA = +VSD = +5V, differential input range = 1.5V to 3.5V each input (4Vp-p), sampling rate = 40MHz, internal
reference, VDRV = +3V, and –1dBFS, unless otherwise noted.
ADS5421Y
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RESOLUTION
14 Tested
–40 to +85
Bits
SPECIFIED TEMPERATURE RANGE
Ambient Air
°C
ANALOG INPUT
Standard Differential Input Range
Common-Mode Voltage
Optional Input Ranges
Analog Input Bias Current
Analog Input Bandwidth
Input Capacitance
Full-Scale = 4Vp-p
Selectable
1.5
3.5
V
V
V
µA
MHz
pF
2.5
2Vp-p or 3Vp-p
1
500
9
CONVERSION CHARACTERISTICS
Sample Rate
Data Latency
1M
40M
Samples/sec
Clk Cyc
10
DYNAMIC CHARACTERISTICS
Differential Linearity Error (largest code error)
f = 1MHz
±0.5
±0.5
LSB
LSB
f = 10MHz
±1.0
No Missing Codes
Tested
±2.5
Integral Nonlinearity Error, f = 1MHz
Spurious-Free Dynamic Range(1)
f = 1MHz
f = 10MHz
f = 30MHz
LSB
88
85
82
dBFS(2)
dBFS
78
dBFS
2-Tone Intermodulation Distortion(3)
f = 14.5MHz and 15.5MHz (–7dB each tone)
Signal-to-Noise Ratio (SNR)
f = 1MHz
f = 10MHz
f = 30MHz
Signal-to-(Noise + Distortion) (SINAD)
f = 1MHz
f = 10MHz
f = 30MHz
Effective Number of Bits(4)
Output Noise
–90
dBc
76
75
75
dBFS
dBFS
dBFS
72
72
75
74
74
12.2
0.4
3
1
5
5
dB
dB
dBFS
Bits
LSB rms
ns
ps rms
ns
f = 1MHz
IN and IN tied to CM
Aperture Delay Time
Aperture Jitter
Over-Voltage Recovery Time
Full-Scale Step Acquisition Time
ns
ADS5421
2
SBAS237D
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