TC815CBU 查看數據表（PDF） - Microchip Technology

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TC815CBU

3-1/2 Digit Auto-Ranging A/D Converter with Triplex LCD Drive and Display Hold Function

Microchip Technology 

TC815

1.0 ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings*

Supply Voltage (V+ to V–) ..................................... 15V

Analog Input Voltage (Either Input) ................ V+ to V-

Reference Input Voltage.................................. V+ to V-

Voltage at Pin 45 ........................................GND ±0.7V

Power Dissipation (TA ≤ 70°C)

64-Pin Plastic Flat Package ...........................1.14W

Operating Temperature Range:

Commercial Package (C) .................... 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.

TC815 ELECTRICAL SPECIFICATIONS

Electrical Characteristics: VA = 9V, TA = +25°C, unless otherwise specified (see Typical Application and Test Circuit Figure).

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

Zero Input Reading Input Resistor -0000 0000 +0000 Digital Reading 200mV Range w/o 10MΩ Input

-0001

—

+0001 Digital Reading 200mV Range w/10MΩ Input

-0000 0000 +0000 Digital Reading 20mA and 200mA Range

RE

Rollover Error

—

—

±1 Count

200mV Range w/o 10MΩ

Input Resistor

—

—

±3

200mV Range w/10MΩ Input

—

—

±1

20mA and 200mA Range

NL

Linearity Error

—

—

±1

Count

Best Case Straight Line

IIN

Input Leakage Current

EN

Input Noise

AC Frequency Error

—

—

10

—

20

—

—

±1

—

—

±5

—

pA

µVp-p

%

%

BW = 0.1 to 10Hz

40Hz to 500Hz

40Hz to 200Hz

Open Circuit Voltage

—

570

660

Open Circuit Voltage

—

285

350

VCOM Analog Common Voltage

2.5

2.6

3.3

VCTC Common Voltage Temperature

—

—

50

Coefficient

mV

mV

V

ppm/°C

Excludes 200Ω Range

for OHM Measurements

Excludes 200Ω Range

for LO OHM Measurement

(V+ - VCOM)

Display Multiplex Rate

VIL

Low Logic Input

Logic 1 Pull-up Current

Buzzer Drive Frequency

—

100

—

—

—

1

—

25

—

—

4

—

Hz

V

20mA, AC, I, LOW Ω, HOLD

Range, -MEM, OHMs

(Relative to DGND Pin 58)

µA

20mA, AC, I, LOW Ω, HOLD

Range, -MEM, OHMs

(Relative to DGND Pin 58)

kHz

Low Battery Flag Voltage

Operating Supply Current

6.3

6.6

7.0

—

0.8

1.5

V

VCC to VSSA

mA

DS21474B-page 4

© 2002 Microchip Technology Inc.

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