TLC3544CPWR datasheet(6/42 Pages) TI

6 / 42 page

TLC3544, TLC3548

5-V ANALOG, 3-/5-V DIGITAL, 14-BIT, 200-KSPS, 4-/8-CHANNELS SERIAL

ANALOG-TO-DIGITAL CONVERTERS WITH 0-5 V (PSEUDODIFFERENTIAL) INPUTS

SLAS266C – OCTOBER 2000 – REVISED MAY 2003

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

general electrical characteristics over recommended operating free-air temperature range,

single-ended input, normal long sampling, 200 KSPS, AVDD = 5 V, external reference (VREFP = 4 V,

VREFM = 0 V) or internal reference, SCLK frequency = 25 MHz, fixed channel at CONV mode 00,

analog input signal source resistance = 25

Ω (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

Digital Input

VIH

High level control input voltage

DVDD = 5 V

3.8

VIH

High-level control input voltage

DVDD = 3 V

2.1

VIL

Low-level control input voltage

DVDD = 5 V

0.8

VIL

Low level control in ut voltage

DVDD = 3 V

0.6

IIH

High-level input current

VI = DVDD

0.005

2.5

µA

IIL

Low-level input current

VI = DGND

–2.5

0.005

µA

Input capacitance

Digital output

VOH

High-level digital output,

IO = 02 mA

DVDD = 5 V

4.2

VOH

High level digital out ut,

VOH at 30-pF load

IO = –0.2 mA

DVDD = 3 V

2.4

DVDD =5V

IO = 0.8 mA

0.4

VOL

Low-level digital output,

DVDD = 5 V

IO = 50 µA

0.1

VOL

Low level digital out ut,

VOL at 30-pF load

DVDD =3V

IO = 0.8 mA

0.4

DVDD = 3 V

IO = 50 µA

0.1

IOZ

Off-state output current

VO = DVDD

0.02

µA

IOZ

Off state out ut current

(high-impedance state)

VO = DGND

CS = DVDD

–1

–0.02

µA

Power Supply

AVDD

Supply voltage

4.5

5.5

DVDD

Supply voltage

2.7

5.5

ICC

Power supply

AVDD current-

AICC

Conversion clock is internal OSC,

EXT reference AVDD =5 5Vto4 5V

2.8

3.6

ICC

Power su

current

DVDD current-

DICC

EXT. reference, AVDD = 5.5 V to 4.5 V,

CS = DGND

1.2

ICC(SW)

Sft

For all digital inputs DVDD or

DGND CS =DVDD

SCLK ON

175

240

µA

ICC(SW)

Software

power-down

power

supply

current

DGND, CS = DVDD,

AVDD = 5.5 V

SCLK OFF

µA

ICC(A t d

)

Autopower-down power supply

For all digital inputs DVDD or

DGND AVDD =5 5V

SCLK ON

175

230

µA

ICC(Autodown)

Autopower-down power supply

current

DGND, AVDD = 5.5 V,

External reference

SCLK OFF

µA

Operating temperat re

C suffix

°C

Operating temperature

I suffix

–40

°C

† All typical values are at TA = 25°C.

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