TC7135 View Datasheet(PDF) - TelCom Semiconductor Inc => Microchip

Part Name

Description

Manufacturer

TC7135

4-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER

TelCom Semiconductor Inc => Microchip 

4-1/2 DIGIT

ANALOG-TO-DIGITAL CONVERTER

TC7135

ABSOLUTE MAXIMUM RATINGS* (Note 1)

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 +160°C

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

Package Power Dissipation (TA ≤ 70°C)

Plastic DIP ........................................................ 1.14W

PLCC ................................................................ 1.00W

Plastic Flat Package .........................................1.14W

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

material to protect them 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.

ELECTRICAL CHARACTERISTICS: TA = +25°C, fCLOCK = 120 kHz, V+ = +5V, V– = –5V (Figure 1)

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

Analog

TCZ

TCFS

NL

DNL

±FSE

IIN

VN

Display Reading With

Zero Volt Input

Zero Reading Temperature

Coefficient

Full-Scale Temperature

Coefficient

Nonlinearity Error

Differential Linearity Error

Display Reading in

Ratiometric Operation

± Full-Scale Symmetry

Error (Roll-Over Error)

Input Leakage Current

Noise

Digital

IIL

Input Low Current

IIH

Input High Current

VOL

Output Low Voltage

VOH

Output High Voltage

B1, B2, B4, B8, D1–D5

Busy, Polarity, Overrange,

Underrange, Strobe

fCLK

Clock Frequency

Power Supply

V+

Positive Supply Voltage

V–

Negative Supply Voltage

I+

Positive Supply Current

I–

Negative Supply Current

PD

Power Dissipation

NOTES:

1. Limit input current to under 100µA if input

voltages exceed supply voltage.

2. Full-scale voltage = 2V.

3. VIN = 0V.

4. 0°C ≤ TA ≤ +70°C.

Notes 2 and 3

VIN = 0V

Note 4

VIN = 2V

Notes 4 and 5

Note 6

Note 6

VIN = VREF

Note 2

–VIN = +VIN

Note 7

Note 3

Peak-to-Peak Value Not

Exceeded 95% of Time

–0.0000 ±0.0000 +0.0000

—

0.5

2

—

—

5

—

—

+0.9996

0.5

0.01

+0.9999

1

—

+1.0000

—

0.5

1

—

1

10

—

15

—

VIN = 0V

VIN = +5V

IOL = 1.6 mA

IOH = 1 mA

IOH = 10 µA

Note 8

—

10

100

—

0.08

10

—

0.2

0.4

2.4

4.4

5

4.9

4.99

5

0

120

1200

4

5

6

–3

–5

–8

fCLK = 0 Hz

fCLK = 0 Hz

fCLK = 0 Hz

—

1

3

—

0.7

3

—

8.5

30

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

6. –2V ≤ VIN ≤ +2V. Error of reading from best fit straight line.

7. |VIN| = 1.9959.

8. Specification related to clock frequency range over which the

TC7135 correctly performs its various functions. Increased errors

result at higher operating frequencies.

Display

Reading

µV/°C

ppm/°C

Count

LSB

Display

Reading

Count

pA

µVP-P

µA

µA

V

V

V

kHz

V

V

mA

mA

mW

3-114

TELCOM SEMICONDUCTOR, INC.

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