TLV1544CD datasheet(15/41 Pages) TI

15 / 41 page

TLV1544C, TLV1544I, TLV1548C, TLV1548I, TLV1548M

LOW-VOLTAGE 10-BIT ANALOG-TO-DIGITAL CONVERTERS

WITH SERIAL CONTROL AND 4/8 ANALOG INPUTS

SLAS139C – DECEMBER 1996 – REVISED JANUARY 1999

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

electrical characteristics over recommended operating free-air temperature range,

VCC = Vref+ = 2.7 V to 5.5 V, I/O CLK frequency = 2.2 MHz (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VOH

High level output voltage

VCC = 5.5 V,

IOH = –0.2 mA

2.4

VOH

High-level output voltage

VCC = 2.7 V,

IOH = –20 µA

VCC–0.1

VOL

Low level output voltage

VCC = 5.5 V,

IOL = 0.8 mA

0.4

VOL

Low-level output voltage

VCC = 2.7 V,

IOL = 20 µA

0.1

IOZ

High impedance output current

VO = VCC,

CS = VCC

2.5

µA

IOZ

High-impedance output current

VO = 0,

CS = VCC

–1

– 2.5

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

Operating supply current

Conversion speed = fast,

For all digital inputs,

≤ VI ≤ 0.3 V or

VI ≥ VCC – 0.3 V

VCC = 3.3 V to 5.5 V

0.6

1.5

ICC

Operating supply current

Conversion speed = slow,

For all digital inputs,

VCC = 3.3 V to 5.5 V

0.4

≤ VI ≤ 0.3 V or

VI ≥ VCC – 0.3 V

VCC = 2.7 V to 3.3 V

0.35

0.75

ICC(ES)

Extended sampling mode

VCC = 3.3 V to 5.5 V

1.5

ICC(ES)

operating current

VCC = 2.7 V to 3.3 V

ICC(ST)

Sustaining supply current

Conversion speed = slow,

For all digital inputs,

≤ VI ≤ 0.3 V or

VI ≥ VCC – 0.3 V

VCC = 2.7 V to 3.3 V

0.3

ICC(PD) Power-down supply current

For all digital inputs,

≤ VI ≤ 0.3 V or VI ≥ VCC – 0.3 V

µA

Ilk

Selected channel leakage current

Selected channel at VCC, unselected channel at 0 V

µA

Ilkg

Selected channel leakage current

Selected channel at 0 V, unselected channel at VCC

–1

µA

Maximum static analog

reference current into REF+

Vref + = VCC = 5.5 V,

Vref – = GND

µA

Ci ‡

Input capacitance, analog inputs

Ci ‡

Input capacitance, control inputs

Zi ‡

Input multiplexer on resistance

VCC = 4.5 V

Ω

Zi ‡

Input multiplexer on resistance

VCC = 2.7 V

Ω

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

‡ Not production tested.

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