TC7106A datasheet(1/32 Pages) MICROCHIP

Il numero della parte	TC7106A

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

PDF	32 Pages

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Produttore elettronici	MICROCHIP [Microchip Technology]

Homepage	http://www.microchip.com

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DS21455C-page 1

TC7106/A/TC7107/A

Features:

• Internal Reference with Low Temperature Drift:

- TC7106/7: 80ppm/°C Typical

- TC7106A/7A: 20ppm/°C Typical

• Drives LCD (TC7106) or LED (TC7107)

Display Directly

• Zero Reading with Zero Input

• Low Noise for Stable Display

• Auto-Zero Cycle Eliminates Need for Zero

Adjustment

• True Polarity Indication for Precision Null

Applications

• Convenient 9V Battery Operation (TC7106A)

• High-Impedance CMOS Differential Inputs: 1012

Ω

• Differential Reference Inputs Simplify Ratiometric

Measurements

• Low-Power Operation: 10mW

Applications:

• Thermometry

• Bridge Readouts: Strain Gauges, Load Cells, Null

Detectors

• Digital Meters: Voltage/Current/Ohms/Power, pH

• Digital Scales, Process Monitors

• Portable Instrumentation

Device Selection Table

General Description:

The TC7106A and TC7107A 3-1/2 digit direct display

drive Analog-to-Digital Converters allow existing 7106/

7107 based systems to be upgraded. Each device has

a precision reference with a 20ppm/°C max tempera-

ture coefficient. This represents a 4 to 7 times improve-

ment over similar 3-1/2 digit converters. Existing 7106

and 7107 based systems may be upgraded without

changing external passive component values. The

TC7107A drives common anode light emitting diode

(LED) displays directly with 8mA per segment. A low

cost, high resolution indicating meter requires only a

display,

four

resistors,

and

four

capacitors.The

TC7106A low-power drain and 9V battery operation

make it suitable for portable applications.

The TC7106A/TC7107A reduces linearity error to less

than 1 count. Rollover error – the difference in readings

for equal magnitude, but opposite polarity input signals,

is below ±1 count. High-impedance differential inputs

offer 1pA leakage current and a 1012

Ω input imped-

ance. The differential reference input allows ratiometric

measurements

for

ohms

or

bridge

transducer

measurements. The 15

μVP–P noise performance

ensures a “rock solid” reading. The auto-zero cycle

ensures a zero display reading with a zero volts input.

Package

Code

Package

Pin Layout

Temperature

Range

CPI

40-Pin PDIP

Normal

0

°C to +70°C

IPL

40-Pin PDIP

Normal

-25

°C to +85°C

IJL

40-Pin CERDIP

Normal

-25

°C to +85°C

CKW

44-Pin PQFP

Formed

Leads

0

°C to +70°C

CLW

44-Pin PLCC

—

0

°C to +70°C

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

Codice articolo simile - TC7106A

Produttore elettronici	Il numero della parte	Scheda tecnica	Spiegazioni elettronici
TelCom Semiconductor, I...	TC7106A	296Kb / 19P	3-1/2 DIGIT A/D CONVERTERS
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TelCom Semiconductor, I...	TC7116	218Kb / 14P	3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS WITH HOLD
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TC7106A Scheda tecnica(PDF) 1 Page - Microchip Technology

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