© 2005 Microchip Technology Inc.

DS21481C-page 1

TC911A/TC911B

Features

• First Monolithic Chopper-Stabilized Amplifier with

On-Chip Nulling Capacitors

• Low Offset Voltage: 5

μV

• Low Offset Voltage Drift: 0.05µV/°C

• Low Supply Current: 350

μA

• High Common-Mode Rejection: 116dB

• Single Supply Operation: 4.5V to 16V

• High Slew Rate: 2.5V/

μsec

• Wide Bandwidth: 1.5MHz

• High Open-Loop Voltage Gain: 120dB

• Low Input Noise Voltage: 0.65

(0.1Hz to 1Hz)

• Pin Compatible With ICL7650

• Lower System Parts Count

Applications

• Instrumentation

• Portable/Battery Powered

• Embedded Control

• Temperature Sensor Amplifier

• Strain Gage Amplifier

Package Type

Device Selection Table

Part

Number

Package

Temperature

Range

Offset

Voltage

TC911ACOA 8-Pin SOIC

0°C to +70°C

15

μV

TC911ACPA

8-Pin PDIP

0°C to +70°C

15

μV

TC911BCOA 8-Pin SOIC

0°C to +70°C

30

μV

TC911BCPA

8-Pin PDIP

0°C to +70°C

30

μV

1

2

3

4

8

7

6

5

Output

NC

+ Input

TC911ACPA

TC911BCPA

- Input

NC

NC

V

SS

V

SS

NC = No Internal Connection

1

2

3

4

8

7

6

5

Output

NC

+ Input

TC911ACOA

TC911BCOA

- Input

NC

NC

8-Pin SOIC

8-Pin PDIP

Monolithic Auto-Zeroed Operational Amplifiers

Obsolete Device