TC7116CPL View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

TC7116CPL

3-1/2 Digit Analog-to-Digital Converters with Hold

Microchip Technology 

TC7116/A/TC7117/A

1.0 ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings*

Supply Voltage:

TC7116/TC7116A (V+ to V-) ...........................15V

TC7117/TC7117A (V+ to GND) .......................+6V

V- to GND.........................................................-9V

Analog Input Voltage (Either Input) (Note 1) ... V+ to V-

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

Clock Input:

TC7116/TC7116A............................... TEST to V+

TC7117/TC7117A.................................GND to V+

Package Power Dissipation; TA  70°C (Note 2)

40-Pin CDIP ................................................2.29W

40-Pin PDIP ................................................1.23W

44-Pin PLCC ...............................................1.23W

44-Pin PQFP ...............................................1.00W

Operating Temperature:

C (Commercial) Device ................... 0°C to +70°C

I (Commercial) Device.................... 0°C to +70°C

Storage Temperature..........................-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.

TABLE 1-1: TC7116/A AND TC7117/A ELECTRICAL SPECIFICATIONS

Electrical Characteristics: Unless otherwise noted, specifications apply to both the TC7116/A and TC7117/A at TA = 25°C,

fCLOCK = 48kHz. Parts are tested in the circuit of the Typical Operating Circuit.

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

ZIR

Zero Input Reading

—

±0

—

Digital VIN = 0V

Reading Full Scale = 200mV

Ratiometric Reading

R/O

Rollover Error (Difference in Reading

for Equal Positive and Negative

Readings Near Full Scale)

999

999/1000 1000

Digital VIN = VREF

Reading VREF = 100mV

-1

±0.2

+1

Counts VIN- = + VIN+  200mV

or 2V

Linearity (Maximum Deviation from

Best Straight Line Fit)

-1

±0.2

+1

Counts Full Scale = 200mV or 2V

CMRR Common Mode Rejection Ratio

(Note 3)

—

50

—

V/V VCM = ±1V, VIN = 0V

Full Scale = 200mV

eN

Noise (Peak to Peak 95% of Time)

—

15

—

V VIN = 0V

Full Scale = 200mV

IL

Leakage Current at Input

Zero Reading Drift

—

1

10

pA VIN = 0V

—

0.2

1

V/°C VIN = 0V

“C” Device = 0°C to +70°C

—

1.0

2

V/°C “I” Device = -25°C to +85°C

Note 1: Input voltages may exceed the supply voltages provided the input current is limited to ±100A.

2: Dissipation rating assumes device is mounted with all leads soldered to printed circuit board.

3: Refer to “Differential Input” discussion.

4: Backplane drive is in phase with segment drive for “OFF” segment, 180° out of phase for “ON” segment. Frequency is

20 times conversion rate. Average DC component is less than 50mV.

5: The TC7116/TC7116A logic inputs have an internal pull-down resistor connected from HLDR, Pin 1 to TEST, Pin 37. The

TC7117/TC7117A logic inputs have an internal pull-down resistor connected from HLDR, Pin 1 to GND, Pin 21.

DS21457D-page 4

 2002-2012 Microchip Technology Inc.

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