ABSOLUTE MAXIMUM RATINGS

(1) (2)

ELECTRICAL CHARACTERISTICS

TSC2003-Q1

www.ti.com ........................................................................................................................................................................................... SBAS454 – DECEMBER 2008

over operating free-air temperature range (unless otherwise noted)

VDD

Supply voltage range

–0.3 V to 6 V

Digital inputs

–0.3 V to VDD + 0.3 V

VI

Input voltage range

All analog inputs except pins 7 and 8

–0.3 V to VDD + 0.3 V

Analog input pins 7 and 8

–0.3 V to 6 V

PD

Power dissipation

(TJ(max) – TA)/θJA

θ

JA

Package thermal impedance, junction to free air

115.2°C

TA

Operating free-air temperature range

–40°C to 85°C

TJ

Maximum junction temperature

150°C

Tstg

Storage temperature range

–65°C to 150°C

(1)

Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating

conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)

All voltages are referenced to GND.

TA = –40°C to 85°C, VDD = 2.7 V, VREF = 2.5-V external voltage, I

2C bus frequency = 3.4 MHz, 12-bit mode,

digital inputs = GND or VDD (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Analog Input

VI

Full-scale input voltage span

0

VREF

V

VI

Absolute input voltage

–0.2

VDD + 0.2

V

Ci

Capacitance

25

pF

Ileak

Leakage current

0.1

µA

System Performance

Resolution

12

bits

Standard and fast modes

11

No missing codes

bits

High-speed mode

10

Standard and fast modes

±2

Integral linearity error

LSB(1)

High-speed mode

±4

Offset error

±6

LSB

Gain error

±4

LSB

Vn

Noise

Including internal VREF, RMS

70

µV

PSRR

Power-supply rejection ratio

70

dB

Sampling Dynamics

Throughput rate

50

ksps

Channel-to-channel isolation

VIN = 2.5 Vpp at 50 kHz

100

dB

Switch Drivers

Y+, X+ on-resistance

5.5

Ω

Y–, X– on-resistance

7.3

Ω

Drive current(2)

Duration 100 ms

50

mA

(1)

LSB = least significant bit. With VREF equal to 2.5 V, one LSB is 610 µV.

(2)

Specified by design. Exceeding 50-mA source current may result in device degradation.

Copyright © 2008, Texas Instruments Incorporated

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