TC826CBU datasheet(2/12 Pages) TELCOM

2 / 12 page

3-172

TELCOM SEMICONDUCTOR, INC.

ABSOLUTE MAXIMUM RATINGS*

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

Analog Input Voltage (either input)(1) ................... V+ to V–

Power Dissipation (TA ≤ 70°C)

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

Operating Temperature

‘C’ Devices ............................................. 0

°C to +70°C

Storage Temperature ............................ – 65

°C to +150°C

Lead Temperature (Soldering, 10 sec) ................. +300

°C

*Static-sensitive device. Unused devices must be stored in conductive

material. Protect devices from static discharge and static fields. Stresses

above those listed under Absolute Maximum Ratings may cause perma-

nent 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 operational sections of the specifications is not implied.

Exposure to Absolute Maximum Rating Conditions for extended periods

may affect device reliability.

ELECTRICAL CHARACTERISTICS: unless otherwise stated VS = 9V; ROSC = 430 kΩ; TA = 25°C; Full–Scale = 20 mV.

No. Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

—

Zero Input

VIN = 0.0V

– 0

±0

Display

—

Zero Reading Drift

VIN = 0.0V

—

0.2

µV/°C

°C ≤ TA ≤ +70°C

Linearity Error

Max Deviation From

– 1

0.5

Count

Best Straight Line

R/O

Rollover Error

–VIN = +VIN

– 1

Count

Noise

VIN = 0V

—

µVP–P

ILK

Input Leakage Current

VIN = 0V

—

CMRR

Common–Mode

VCM =

±1V

—

µV/V

Rejection Ratio

VIN = 0V

—

Scale Factor

≤ TA ≤ +70°C

—

ppm/

°C

Temperature Coefficient

External Ref. Temperature

Coefficient = 0 ppm/

°C

VCTC

Analog Common

250k

Ω Between

—

100

ppm/

°C

Temperature Coefficient

Common and V+

°C ≤ TA ≤ +70°C

VCOM

Analog Common

250k

Ω Between

2.7

2.9

3.35

Voltage

Common and VDD

VSD

LCD Segment

VP–P

Drive Voltage

VBD

LCD Backplane

VP–P

Drive Voltage

IDD

Power Supply Current

—

125

175

µA

NOTES: 1. Input voltages may exceed the supply voltages when

the input current is limited to 100

µA.

2. Static sensitive device. Unused devices should be

stored in conductive material to protect devices from

static discharge and static fields.

3. Backplane drive is in phase with segment drive for ‘off’ segment and 180

°C out of phase for ‘on’ segment. Frequency is 10 times

conversion rate.

4. Logic input pins 58, 59, and 60 should be connected through 1M

Ω series resistors to VSS for logic 0.

TC826

A/D CONVERTER WITH

BAR GRAPH DISPLAY OUTPUT

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