ABSOLUTE MAXIMUM RATINGS
ELECTROSTATIC
DISCHARGE SENSITIVITY
Analog Input: Current (Momentary).............................................. ±100mA
(Continuous) ............................................... ±10mA
Voltage ................................... GND – 0.3V to VDD + 0.3V
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.
AVDD to AGND ....................................................................... –0.3V to 6V
DVDD to AVDD .......................................................................... –6V to +6V
DVDD to DGND ....................................................................... –0.3V to 6V
VREF Voltage to AGND ............................................. –0.3V to VDD + 0.3V
Digital Input Voltage to DGND ................................. –0.3V to VDD + 0.3V
Digital Output Voltage to DGND .............................. –0.3V to VDD + 0.3V
Lead Temperature (soldering, 10s) .............................................. +300°C
Power Dissipation (any package) ................................................. 500mW
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.
PACKAGE/ORDERING INFORMATION
PACKAGE
DRAWING
NUMBER
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER(1)
TRANSPORT
MEDIA
PRODUCT
PACKAGE
ADS1254E
SSOP-20
349
–40°C to +85°C
ADS1254E
ADS1254E
Rails
"
"
"
"
"
ADS1254E/2K5
Tape and Reel
NOTE: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces
of “ADS1254E/2K5” will get a single 2500-piece Tape and Reel.
ELECTRICAL CHARACTERISTICS
All specifications at TMIN to TMAX, AVDD = +5V, DVDD = +1.8V. CLK = 8MHz, and VREF = 4.096, unless otherwise specified.
ADS1254E
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG INPUT
Input Voltage Range
Input Impedance
AGND
±VREF
V
CLK = 3,840Hz
CLK = 1MHz
CLK = 8MHz
260
1
MΩ
MΩ
kΩ
pF
125
6
Input Capacitance
Input Leakage
At +25°C
5
50
1
pA
nA
At TMIN to TMAX
DYNAMIC CHARACTERISTICS
Data Rate
20.8
kHz
kHz
Bandwidth
–3dB
4.24
Serial Clock (SCLK)
System Clock Input (CLK)
8
8
MHz
MHz
ACCURACY
Integral Non-Linearity(1)
±0.0002
105
1.8
±0.0015
% of FSR
THD
Noise
1kHz Input; 0.1dB below FS
60Hz, AC
dB
ppm of FSR, rms
Bits
2.7
Resolution
24
No Missing Codes
Common-Mode Rejection
Gain Error
24
102
0.1
±30
1:1
88
Bits
dB
90
70
1
% of FSR
ppm of FSR
Offset Error
±100
Gain Sensitivity to VREF
Power-Supply Rejection Ratio
dB
PERFORMANCE OVER TEMPERATURE
Offset Drift
Gain Drift
0.07
0.4
ppm/°C
ppm/°C
VOLTAGE REFERENCE
VREF
0.5
4.096
32
VDD
V
Load Current
µA
NOTE: (1) Applies to full-differential signals.
ADS1254
2
SBAS213
BB [ BURR-BROWN CORPORATION ]
