ADC128D818_15 datasheet(8/46 Pages) TI1

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ADC128D818

SNAS483F – FEBRUARY 2010 – REVISED AUGUST 2015

www.ti.com

DC Electrical Characteristics (continued)

The following specifications apply for 3 VDC ≤ V

+ ≤ 5.5 V

DC , External VREF = 2.56 V, unless otherwise specified. All limits TA

= TJ = 25°C unless otherwise specified

(1).

PARAMETER

TEST CONDITIONS

MIN(2)

TYP(3)

MAX(2)

UNIT

Each Enabled Voltage Channel

12

ms

Continuous Conversion Mode

Internal Temperature Sensor

3.6

ms

tC

Enabled Voltage Channel(s) and Internal

Low Power Conversion Mode

728

ms

Temperature Sensor

MULTIPLEXER / ADC INPUT CHARACTERISTICS

2

RON

ON-Resistance

k

Ω

TA = TJ = TMIN to TMAX

10

Input Current (On Channel

ION

±0.005

μA

Leakage Current)

IOFF

Off Channel Leakage Current

±0.005

μA

DIGITAL OUTPUTS: INT

IOUT = 5.0 mA at V

+ = 4.5

VOUT(0)

Logical 0 Output Voltage

V, IOUT = +3 mA at V

+ = +3 T

A = TJ = TMIN to TMAX

0.4

V

OPEN DRAIN SERIAL BUS OUTPUT: SDA

IOUT = 3.0 mA at V

+ = 4.5

VOUT(0)

Logical 0 Output Voltage

TA = TJ = TMIN to TMAX

0.4

V

V,

0.005

IOH

High Level Output Current

VOUT = V

+

μA

TA = TJ = TMIN to TMAX

1

DIGITAL INPUTS: A0 and A1

VIN(1)

Logical 1 Input Voltage

TA = TJ = TMIN to TMAX

0.9 × V+

5.5

V

VIM

Logical Middle Input Voltage

TA = TJ = TMIN to TMAX

0.43 ×

0.57 ×

V+

VIN(0)

Logical 0 Input Voltage

TA = TJ = TMIN to TMAX

GND –

0.1 × V+

V

0.05

SERIAL BUS INPUTS: SCL and SDA

VIN(1)

Logical 1 Input Voltage

TA = TJ = TMIN to TMAX

0.7 × V+

5.5

v

GND –

VIN(0)

Logical 0 Input Voltage

TA = TJ = TMIN to TMAX

0.3 × V+

V

0.05

V+ = 3.3 V

0.67

V

VHYST

Hysteresis Voltage

V+ = 5.5 V

1.45

V

ALL DIGITAL INPUTS: SCL, SDA, A0, A1

– 0.005

IIN(1)

Logical 1 Input Current

VIN = V

+

µA

TA = TJ = TMIN to TMAX

−1

0.005

IIN(0)

Logical 0 Input Current

VIN = 0 VDC

µA

TA = TJ = TMIN to TMAX

1

CIN

Digital Input Capacitance

20

pF

8

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