TLC545C, TLC545I, TLC546C, TLC546I

8-BIT ANALOG-TO-DIGITAL CONVERTERS

WITH SERIAL CONTROL AND 19 INPUTS

SLAS066B – DECEMBER 1985 – REVISED OCTOBER 1996

6

POST OFFICE BOX 655303

electrical characteristics over recommended operating temperature range,

(unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VOH

High-level output voltage (DATA OUT)

VCC = 4.75 V,

IOH = – 360 µA

2.4

V

VOL

Low-level output voltage

VCC = 4.75 V,

IOL = 3.2 mA

0.4

V

IOZ

Off state (high impedance state) ouput current

VO = VCC,

CS at VCC

10

µA

IOZ

Off-state (high-impedance state) ouput current

VO = 0,

CS at VCC

–10

µA

IIH

High-level input current

VI = VCC

0.005

2.5

µA

IIL

Low-level input current

VI = 0

– 0.005

– 2.5

µA

ICC

Operating supply current

CS at 0 V

1.2

2.5

mA

Selected channel leakage current

Selected channel at VCC,

Unselected channel at 0 V

0.4

1

µA

Selected channel leakage current

Selected channel at 0 V,

Unselected channel at VCC

– 0.4

–1

µA

ICC + Iref

Supply and reference current

Vref+ = VCC,

CS at 0 V

1.3

3

mA

Ci

Input capacitance

Analog inputs

7

55

pF

Ci

Input capacitance

Control inputs

5

15

pF

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