TSC2046

SBAS265G − OCTOBER 2002 − REVISED JANUARY 2008

www.ti.com

4

At TA = −40°C to +85°C, +VCC = +2.7V, VREF = 2.5V internal voltage, fSAMPLE = 125kHz, fCLK = 16 • fSAMPLE = 2MHz, 12-bit mode, digital

inputs = GND or IOVDD, and +VCC must be ≥ IOVDD, unless otherwise noted.

TSC2046

PARAMETER

UNITS

MAX

TYP

MIN

CONDITION

DIGITAL INPUT/OUTPUT

Logic Family

CMOS

Capacitance

All Digital Control Input Pins

5

15

pF

VIH

| IIH | ≤ +5µA

IOVDD

• 0.7

IOVDD + 0.3

V

VIL

| IIL | ≤ +5µA

−0.3

0.3

• IOVDD

V

VOH

IOH = −250µA

IOVDD

• 0.8

V

VOL

IOL = 250µA

0.4

V

Data Format

Straight

Binary

POWER-SUPPLY REQUIREMENTS

+VCC(5)

Specified Performance

2.7

3.6

V

Operating Range

2.2

5.25

V

IOVDD(6)

1.5

+VCC

V

Quiescent Current(7)

Internal Reference Off

280

650

µA

Internal Reference On

780

µA

fSAMPLE = 12.5kHz

220

µA

Power-Down Mode with

3

µA

CS = DCLK = DIN = IOVDD

Power Dissipation

+VCC = +2.7V

1.8

mW

TEMPERATURE RANGE

Specified Performance

−40

+85

°C

(1) LSB means Least Significant Bit. With VREF = +2.5V, one LSB is 610µV.

(2) Assured by design, but not tested. Exceeding 50mA source current may result in device degradation.

(3) Difference between TEMP0 and TEMP1 measurement, no calibration necessary.

(4) Temperature drift is −2.1mV/°C.

(5) TSC2046 operates down to 2.2V.

(6) IOVDD must be ≤ (+VCC).

(7) Combined supply current from +VCC and IOVDD. Typical values obtained from conversions on AUX input with PD0 = 0.