 2004 Microchip Technology Inc.

DS21460C-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

44-Pin MQFP

..........................................................................

64-Pin MQFP ........................................................ 1.14

Ω

† Notice: Stresses above those listed under "Absolute Maxi-

mum 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.

DC CHARACTERISTICS

(see Functional Block Diagram).

Parameters

Sym

Min.

Typ.

Max.

Units

Conditions

Analog

Display Reading with Zero Volt

Input

-0.0000

±0.0000

+0.0000

Display Reading

Note 2, Note 3

Zero Reading Temperature

Coefficient

—0.5

2

µV/°C

Full Scale Temperature

Coefficient

—

—

5

ppm/°C

(Note 4, Note 5)

Nonlinearity Error

NL

—

0.5

1

Count

Note 6

Differential Linearity Error

DNL

—

0.01

—

LSB

Note 6

Display Reading in Ratiometric

Operation

+0.9996

+0.9999

+1.0000

Display Reading

± Full Scale Symmetry Error

(Rollover Error)

±FSE

—

0.5

1

Count

Input Leakage Current

—

1

10

pA

Note 3

Noise

—15

—

Peak-to-Peak Value not

Exceeded 95% of Time

Digital

Input Low Current

—

10

100

µA

Input High Current

—0.08

10

µA

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

≤ T

5:

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

6:

-2V

≤ V

7:

8:

Specification related to clock frequency range over which the

Increased errors result at higher operating frequencies.