1

TC43

LINEAR BUILDING BLOCK –

VOLTAGE REFERENCE, DUAL OP AMP,

DUAL COMPARATOR WITH SHUTDOWN MODE

PRELIMINARY INFORMATION

GENERAL DESCRIPTION

The TC43 is a mixed-function device combining two

general purpose op amps, two general purpose compara-

tors and a voltage reference in a single 16-pin package.

This increased integration allows the user to replace

two or three packages, saving space, lowering supply

current, and increasing system performance. A Shutdown

input, SHDN, disables the op amps and one of the compara-

tors, placing their outputs in a high-impedance state. The

reference and one comparator stay active in Shutdown

Mode. Standby power consumption is typically 5

µA.

The TC43 is designed specifically for operation from a

single supply, however, operation from dual supplies is also

possible, and the power supply current drain is independent

of the magnitude of the power supply voltage.

Packaged in a 16-pin narrow SOIC (0.150 wide) or

16-pin DIP, the TC43 is ideal for applications requiring high

integration, small size and low power.

LINEAR BUILDING BLOCK – VOLTAGE REFERENCE, DUAL OP AMP,

DUAL COMPARATOR WITH SHUTDOWN MODE

TC43

FUNCTIONAL BLOCK DIAGRAM

FEATURES

s

Combines Two Op Amps, Two Comparators and a

Voltage Reference into a Single Package

s

Optimized for Single Supply Operation

s

Small Package .......... 16-Pin SOIC or DIP (Narrow)

s

Ultra Low Input Bias Current ...... Less than 100pA

s

Low Quiescent

Current ..................... 10

s

Reference and One Comparator Remain Active in

Shutdown to Provide Supervisory Functions

APPLICATIONS

s

Power Supply Circuits

s

Embedded Systems

s

Instrumentation

s

Portable Equipment

s

Consumer Products

s

Replacements for Discrete Components

ORDERING INFORMATION

Part No.

Package

Temp. Range

TC43COR

16-Pin SOIC (Narrow)

0

°C to +70°C

TC43CPR

16-Pin Plastic DIP (Narrow)

0

°C to +70°C

TC43EOR

16-Pin SOIC (Narrow)

– 40

°C to +85°C

TC43EPR

16-Pin Plastic DIP (Narrow)

– 40

°C to +85°C

TC43EV

Evaluation Kit for TC43

TC43CPR

TC43EPR

1

2

3

4

16

15

14

A1

IN+

A1

IN–

A2

IN+

A1

OUT

A2

OUT

A2

IN–

C1

IN+

C1

IN–

C2

IN+

C2

IN–

C1

OUT

C2

OUT

SHDN

V

SS

V

REF

V

DD

V

DD

5

6

7

8

13

12

11

10

9

TC43COR

TC43EOR

1

2

3

4

16

15

14

A1

IN+

A1

IN–

A2

IN+

A1

OUT

A2

OUT

A2

IN–

C1

IN+

C1

IN–

C2

IN+

C2

IN–

C1

OUT

C2

OUT

SHDN

V

SS

V

REF

5

6

7

8

13

12

11

10

9

V

REF+

A1

IN+

A1

IN–

A2

IN+

A1

OUT

A2

OUT

A2

IN–

C1

IN+

C1

IN–

C2

IN+

C2

IN–

C1

OUT

C2

OUT

SHDN

V

SS

V

DD

AMP 1

+

–

AMP 2

CMPTR 1

+

+

–

–

CMPTR 2

+

–

PIN CONFIGURATIONS (DIP and SOIC)

TC43-1 3/12/97

TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.

EVALUATION

KIT

AVAILABLE