TLC1549C, TLC1549I, TLC1549M

10-BIT ANALOG-TO-DIGITAL CONVERTERS

WITH SERIAL CONTROL

SLAS059C – DECEMBER 1992 – REVISED MARCH 1995

8

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

electrical characteristics over recommended operating free-air temperature range,

VCC = Vref+ = 4.5 V to 5.5 V, I/O CLOCK frequency = 2.1 MHz (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VOH

High level output voltage

VCC = 4.5 V,

IOH = – 1.6 mA

2.4

V

VOH

High-level output voltage

VCC = 4.5 V to 5.5 V,

IOH = – 20 µA

VCC – 0.1

V

VOL

Low level output voltage

VCC = 4.5 V,

IOL = 1.6 mA

0.4

V

VOL

Low-level output voltage

VCC = 4.5 V to 5.5 V,

IOL = 20 µA

0.1

V

IOZ

Off state (high impedance state) output current

VO = VCC,

CS at VCC

10

µA

IOZ

Off-state (high-impedance-state) output 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

0.8

2.5

mA

Analog input leakage current

VI = VCC

1

µA

Analog input leakage current

VI = 0

–1

µA

Maximum static analog reference

current into REF+

Vref+ = VCC,

Vref – = GND

10

µA

TLC1549C, I

(Analog)

During sample cycle

30

55

Ci

Input capacitance

TLC1549M

(Analog)

During sample cycle

30

pF

Ci

Input capacitance

TLC1549C, I

(Control)

5

15

pF

TLC1549M

(Control)

5

† All typical values are at VCC = 5 V, TA = 25°C.