ADS5422_14 Datasheet, PDF (2/25 Pages) Texas Instruments – 14-Bit, 62MSPS Sampling ANALOG-TO-DIGITAL CONVERTER

PACKAGE/ORDERING INFORMATION⁽¹⁾
PRODUCT
ADS5422
"
PACKAGE-LEAD
LQFP-64
"
PACKAGE
DESIGNATOR
PM
"
SPECIFIED
TEMPERATURE
RANGE
–40°C to +85°C
"
PACKAGE
MARKING
ADS5422Y
"
ORDERING
NUMBER
ADS5422Y/ 250
ADS5422Y/1K5
TRANSPORT
MEDIA, QUANTITY
Tape and Reel, 250
Tape and Reel, 1500
NOTE: (1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at
www.ti.com.
ABSOLUTE MAXIMUM RATINGS⁽¹⁾
+V_SA, +V_SD, VDRV ............................................................................... +6V
Analog Input .......................................................... (–0.3V) to (+V_S + 0.3V)
Logic Input ............................................................ (–0.3V) to (+V_S + 0.3V)
Case Temperature ......................................................................... +100°C
Junction Temperature .................................................................... +150°C
Storage Temperature ..................................................................... +150°C
NOTE: (1) Stresses above those listed under “Absolute Maximum Ratings”
may cause permanent damage to the device. Exposure to absolute maximum
conditions for extended periods may affect device reliability.
EVALUATION BOARD
PRODUCT
DESCRIPTION
ADS5422EVM Populated Evaluation Board
USER’S GUIDE
SBAU084
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.
ESD damage can range from subtle performance degradation
to complete device failure. Precision integrated circuits may be
more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.
TIMING DIAGRAM
Analog In
N
N+1
N+2
Clock
t_A
t_CONV
N+3
N+4
t_L t_H
N+5
N+6
N+7
N+8
N+9
N + 10
Data Out
Data Valid Output
t_DV
N – 10
N–9
Data Invalid
N–8
10 Clock Cycles
N–7
N–6
N–5
N–4
N–3
N–2
t₂
N–1
N
t₁
SYMBOL
DESCRIPTION
MIN
t _CONV
t_L
t_H
t_A
t₁
t₂
t_DV
Clock Period
16.1
Clock Pulse LOW
7.05
Clock Pulse HIGH
7.05
Aperture Delay
Data Hold Time, C_L = 0pF
3.9
New Data Delay Time, C_L = 15pF max
Data Valid Output, C_L = 15pF
TYP
t_CONV / 2
t _CONV / 2
3
7.7
3
MAX
1µs
UNITS
ns
ns
ns
ns
ns
ns
ns
REFERENCE AND FULL-SCALE RANGE SELECT
DESIRED FULL-SCALE RANGE
4V_PP
3V_PP
SEL1
GND
GND
SEL2
GND
+V_SA
INTERNAL V_REF
2V
1.5V
NOTE: For external reference operation, tie V_REF to +V_SA. The full-scale range will be 2x the reference value. For example, selecting a 2V external reference
will set the full-scale values of 1.5V to 3.5V for both IN and IN inputs.
2
ADS5422
www.ti.com
SBAS250D