© 2002 Microchip Technology Inc.

DS21460B-page 3

TC7135

1.0

ELECTRICAL SPECIFICATIONS

Absolute Maximum Ratings*

Positive Supply Voltage..........................................+6V

Negative Supply Voltage ....................................... - 9V

Analog Input Voltage (Pin 9 or 10) .... V+ to V- (Note 2)

Reference Input Voltage (Pin 2) ...................... V+ to V-

Clock Input Voltage ........................................ 0V to V+

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

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

28-Pin PDIP ..................................... 1.14

Ω

28-Pin PLCC .................................... 1.00

Ω

64-Pin PQFP .....................................1.14

Ω

*Stresses above those listed under "Absolute Maximum Rat-

ings" 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. Expo-

sure to Absolute Maximum Rating conditions for extended

periods may affect device reliability.

TC7135 ELECTRICAL SPECIFICATIONS

(see Functional Block Diagram).

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

Analog

Display Reading with Zero Volt Input

-0.0000

±0.0000

+0.0000

Display Reading

Note 2 and Note 3

Zero Reading Temperature Coefficient

—

0.5

2

Full Scale Temperature Coefficient

—

—

5

ppm/°C

(Note4 andNote5)

NL

Nonlinearity Error

—

0.5

1

Count

Note 6

DNL

Differential Linearity Error

—

0.01

—

LSB

Note 6

Display Reading in Ratiometric Operation

+0.9996

+0.9999

+1.0000

Display Reading

±FSE

± Full Scale Symmetry Error

(Rollover Error)

—

0.5

1

Count

Input Leakage Current

—

1

10

pA

Note 3

Noise

—

15

—

P-P

Peak-to-Peak Value not

Exceeded 95% of Time

Digital

Input Low Current

—

10

100

Input High Current

—

0.08

10

Output Low Voltage

—

0.2

0.4

V

Output High Voltage;

Busy, Polarity, Overrange,

Underrange, Strobe

2.4

4.4

5

V

4.9

4.99

5

V

Clock Frequency

0

200

1200

kHz

Note 8

Note

1:

Limit input current to under 100

µA if input voltages exceed supply voltage.

2:

Full scale voltage = 2V.

3:

4:

30°C

5:

.External reference temperature coefficient less than 0.01ppm/°C.

6:

-2V

7:

8:

Specification related to clock frequency range over which the TC7135 correctly performs its various functions. Increased

errors result at higher operating frequencies.