TC7107ACKW View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

TC7107ACKW

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

Microchip Technology 

TC7106/A/TC7107/A

1.0 ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings†

TC7106A

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

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

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

Clock Input .............................................................. Test to V+

Package Power Dissipation (TA ≤ 70°C) (Note 2):

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

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

44-Pin MQFP ....................................................1.00W

Operating Temperature Range:

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

I (Industrial) Devices ..........................-25°C to +85°C

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

TC7107A

Supply Voltage (V+) .......................................................... +6V

Supply Voltage (V-) ............................................................-9V

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

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

Clock Input............................................................. GND to V+

Package Power Dissipation (TA ≤ 70°C) (Note 2):

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

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

44-Pin MQFP.................................................... 1.00W

Operating Temperature Range:

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

I (Industrial) Devices.......................... -25°C to +85°C

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

† Notice: 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 Rat-

ing conditions for extended periods may affect device reliability.

TC7106/A AND TC7107/A ELECTRICAL SPECIFICATIONS

Electrical Characteristics: Unless otherwise noted, specifications apply to both the TC7106/TC7106A and TC7107/TC7107A at

TA = +25°C, fCLOCK = 48 kHz. Parts are tested in the circuit of the Typical Operating Circuit.

Parameter

Symbol Min

Typ

Max

Unit

Test Conditions

Zero Input Reading

ZIR

-000.0 ±000.0 +000.0 Digital VIN = 0.0V

Reading Full Scale = 200.0 mV

Ratiometric Reading

Rollover Error (Difference in Reading for R/O

Equal Positive and Negative Reading

Near Full Scale)

999 999/1000 1000 Digital VIN = VREF

Reading VREF = 100 mV

-1

±0.2

+1

Counts VIN- = + VIN+ ≅ 200 mV

Linearity (Maximum Deviation from Best

Straight Line Fit)

-1

±0.2

+1

Counts Full Scale = 200 mV or

Full Scale = 2.000V

Common Mode Rejection Ratio (Note 3) CMRR

—

50

—

µV/V VCM = ±1V, VIN = 0V,

Full Scale = 200.0 mV

Noise (Peak to Peak Value not

eN

Exceeded 95% of Time)

—

15

—

µV VIN = 0V

Full Scale - 200.0 mV

Leakage Current at Input

Zero Reading Drift

IL

—

1

10

pA VIN = 0V

—

0.2

1

µV/°C VIN = 0V

“C” Device = 0°C to +70°C

—

1.0

2

µV/°C VIN = 0V

“I” Device = -25°C to +85°C

Scale Factor Temperature Coefficient TCSF

—

1

5

ppm/°C VIN = 199.0 mV,

“C” Device = 0°C to +70°C (Ext.

Ref = 0 ppm°C)

—

—

20 ppm/°C VIN = 199.0 mV

“I” Device = -25°C to +85°C

Supply Current (Does not include LED IDD

Current For TC7107/A)

—

0.8

1.8

mA VIN = 0.8

Analog Common Voltage (with Respect VC

to Positive Supply)

2.7

3.05

3.35

V 25 kΩ Between Common and

Positive Supply

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

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 the conversion rate. Average DC component is less than 50 mV.

DS21455D-page 4

© 2008 Microchip Technology Inc.

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