TC818 datasheet(4/24 Pages) MICROCHIP

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TC818A

DS21475B-page 4

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings*

Supply Voltage ....................................................... 15V

Analog Input Voltage ..................................VCC to VSS

Reference Input Voltage..............................VCC to VSS

Voltage at Pin 43 ................................. Common ±0.7V

Power Dissipation ............................................800mW

Operating Temperature Range................ 0°C to +70°C

Storage Temperature Range .............. -65°C to +150°C

*Stresses above those listed under "Absolute Maximum

Ratings" may cause permanent damage to the device. These

are stress ratings only and functional operation of the device

at these or any other conditions above those indicated in the

operation sections of the specifications is not implied.

Exposure to Absolute Maximum Rating conditions for

extended periods may affect device reliability.

TC818A ELECTRICAL SPECIFICATIONS

Electrical Characteristics: VA =9V, TA = +25°C, unless otherwise specified.

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

Zero Input Reading

-0000

0000

+0000

Digital

Reading

200mV Range without 10M

Ω

Resistor

-0001

—

+0001

Digital

Reading

200mV Range with 10M

Ω

Resistor

-0000

0000

+0000

Digital

Reading

20mA and 200mA Range

Rollover Error

—

±1

Counts

200mV Range without 10M

Ω

Resistor

—

±3

200mV Range with 10M

Ω

Resistor

—

±1

20mA and 200mA Range

Linearity Error

—

±1

Count

Best Case Straight Line

IIN

Input Leakage Current

—

Input Noise

—

µVP-P

BW = 0.1 to 10Hz

AC Frequency Error

—

±1

—

40 to 500Hz

—

±5

—

Error 40 to 2000Hz

Open Circuit Voltage for Ohm

Measurements

—

570

660

Excludes 200

Ω Range

Open Circuit Voltage for LO Ohm

Measurements

—

285

350

Excludes 200

Ω Range

VCOM

Analog Common Voltage

2.8

3.3

(VCC -VCOM)

VCTC

Common Voltage Temperature

Coefficient

—

ppm/°C

Display Multiplex Rate

—

100

—

VIL

Low Logic Input

—

µA20mA,AC,I,LOW Ω,HOLD

Range, -MEM, OHMs

(RelativetoDGND, Pin58)

Logic 1 Pull-up Current

—

20mA,AC,I,LOW

Ω,HOLD

Range, -MEM, OHMs

(RelativetoDGND, Pin58)

VOL

Low Logic Output

—

DGND +0.1

—

ANNUNC, DEINT: IL =100µA

VOH

High Logic Output

—

VCC - 0.1

—

ANNUNC, DEINT: IL =100µA

Buzzer Drive Frequency

—

kHz

Low Battery Flag Voltage

6.3

6.6

VCC to VSSA

Operating Supply Current

—

0.8

1.5

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