ADS1253_14 datasheet(2/23 Pages) TI1

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ADS1253

SBAS199B

www.ti.com

Analog Input: Current (Momentary) ..............................................

±100mA

(Continuous) ...............................................

±10mA

Voltage ................................... GND – 0.3V to VDD + 0.3V

VDD to GND ............................................................................ –0.3V to 6V

VREF Voltage to GND ............................................... –0.3V to VDD + 0.3V

Digital Input Voltage to GND ................................... –0.3V to VDD + 0.3V

Digital Output Voltage to GND ................................. –0.3V to VDD + 0.3V

Lead Temperature (soldering, 10s) .............................................. +300

°C

Power Dissipation (any package) ................................................. 500mW

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.

ESD damage can range from subtle performance degrada-

tion 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.

ANALOG INPUT

Full-Scale Input Voltage

±V

REF

Absolute Input Voltage

CHx+ or CHx– to GND

GND – 0.3

VDD + 0.3

Input Impedance

CLK = 3840Hz

430

Ω

CLK = 1MHz

1.7

Ω

CLK = 8MHz

210

Ω

Input Capacitance

6pF

Input Leakage

At +25

°C5

At TMIN to TMAX

1nA

DYNAMIC CHARACTERISTICS

Data Rate

20.8

kHz

Bandwidth

–3dB

4.24

kHz

Serial Clock (SCLK)

MHz

System Clock Input (CLK)

8MHz

ACCURACY

Integral Nonlinearity(1)

±0.0002

±0.0015

% of FSR

THD

1kHz Input; 0.1dB below FS

105

Noise

1.8

2.7

ppm of FSR, rms

Resolution

Bits

No Missing Codes

Bits

Common-Mode Rejection

60Hz, AC

102

Gain Error

0.1

% of FSR

Offset Error

±20

±100

ppm of FSR

Gain Sensitivity to VREF

1:1

Power-Supply Rejection Ratio

PERFORMANCE OVER TEMPERATURE

Offset Drift

0.07

ppm/

°C

Gain Drift

0.4

ppm/

°C

VOLTAGE REFERENCE

VREF

0.5

4.096

VDD

Load Current

µA

ADS1253E

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

ELECTRICAL CHARACTERISTICS

All specifications at TMIN to TMAX, VDD = +5V, CLK = 8MHz, and VREF = 4.096V, unless otherwise specified.

NOTE: (1) Applies to full-differential signals.

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.

SPECIFIED

PACKAGE

TEMPERATURE

PACKAGE

ORDERING

TRANSPORT

PRODUCT

PACKAGE-LEAD

DESIGNATOR

RANGE

MARKING

NUMBER

MEDIA, QUANTITY

ADS1253

SSOP-16

DBQ

–40

°C to +85°C

ADS1253E

Rails, 100

"""

ADS1253E/2K5

Tape and Reel, 2500

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 web site at www.ti.com.

PACKAGE/ORDERING INFORMATION(1)

PRODUCT

# OF INPUTS

MAXIMUM DATA RATE

COMMENTS

ADS1250

1 Differential

25.0kHz

Includes PGA from 1 to 8

ADS1251

1 Differential

26.8kHz

ADS1252

1 Differential

41.7kHz

ADS1253

4 Differential

20.8kHz

ADS1254

4 Differential

20.8kHz

Includes Separate Analog and Digital Supplies

PRODUCT FAMILY

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