TC911 TELCOM [TelCom Semiconductor, Inc], TC911 Datasheet

TC911

Manufacturer Part Number

TC911

Description

AUTO-ZEROED OPERATIONAL AMPLIFIERS

Manufacturer

TELCOM [TelCom Semiconductor, Inc]

Datasheet

1.TC911.pdf (5 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

TC911ACOA

Manufacturer:

MICROCHIP

Quantity:

7 026

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

TC911ACPA

Manufacturer:

MICROCHIP

Quantity:

7 047

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

TC911BCOA

Manufacturer:

D/A

Quantity:

6 234

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

TC911BCPA

Manufacturer:

MICROCHIPS

Quantity:

5 510

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

TC911BCPA

Quantity:

5 510

Current page: 1 of 5
Download datasheet (73Kb)

AUTO-ZEROED OPERATIONAL AMPLIFIERS

FEATURES

FUNCTIONAL BLOCK DIAGRAM

ORDERING INFORMATION

Part No.

TC911ACOA

TC911ACPA

TC911BCOA

TC911BCPA

First Monolithic Chopper-Stabilized Amplifier

With On-Chip Nulling Capacitors

Offset Voltage .................................................... 5 V

Offset Voltage Drift .................................. 0.05 V/ C

Low Supply Current ...................................... 350 A

High Common-Mode Rejection .................... 116dB

Single Supply Operation ....................... 4.5V to 16V

High Slew Rate ............................................. 2.5V/ s

Wide Bandwidth ............................................1.5MHz

High Open-Loop Voltage Gain

Low Input Voltage Noise

(0.1 Hz to 1 Hz) .......................................... 0.65 V

Pin Compatible With ICL7650

Lower System Parts Count

TELCOM SEMICONDUCTOR, INC.

= 10 k ) .................................................... 120dB

Package

8-Pin SOIC

8-Pin

Plastic DIP

8-Pin SOIC

8-Pin

Plastic DIP

+INPUT

–INPUT

Temperature

0 C to +70 C

NOTE: Internal capacitors. No external capacitors required.

Range

V DD

–

Maximum

MAIN

AMPLIFIER

Voltage

Offset

CORRECTION AMPLIFIER

15 V

30 V

V SS

P-P

GENERAL DESCRIPTION

the first complete monolithic chopper-stabilized amplifier.

Chopper operational amplifiers like the ICL7650/7652 and

LTC1052 require user-supplied, external offset compensa-

tion storage capacitors. External capacitors are not re-

quired with the TC911. Just as easy to use as the conven-

tional OP07 type amplifier, the TC911 significantly reduces

offset voltage errors. Pinout matches the OP07/741/7650

8-pin mini-DIP configuration.

nal chopper capacitors: lower system parts count, reduced

assembly time and cost, greater system reliability, reduced

PC board layout effort and greater board area utilization.

Space savings can be significant in multiple-amplifier de-

signs.

voltage, 0.15 V/ C maximum offset voltage temperature

coefficient. Offset voltage error is five times lower than the

premium OP07E bipolar device. The TC911 improves off-

set drift performance by eight times.

plies. Supply current is typically 350 A. Single 4.5V to 16V

supply operation is possible, making single 9V battery

operation possible. The TC911 is available in 2 package

types: 8-pin plastic DIP and SOIC.

PIN CONFIGURATION (SOIC and DIP)

–

– INPUT

+ INPUT

The TC911 CMOS auto-zeroed operational amplifier is

Several system benefits arise by eliminating the exter-

Electrical specifications include 15 V maximum offset

The TC911 operates from dual or single power sup-

LOW IMPEDANCE

OUTPUT BUFFER

OSCILLATOR

OSC

INTERNAL

TC911

TC911ACPA

TC911BCPA

200 Hz)

NC = NO INTERNAL CONNECTION

OUTPUT

– INPUT

+ INPUT

TC911ACOA

TC911BCOA

TC911A

TC911B

TC911/A/B-7 9/11/96

OUTPUT

3-263

Related parts for TC911

TC911 Summary of contents

Page 1

... Chopper operational amplifiers like the ICL7650/7652 and LTC1052 require user-supplied, external offset compensa- tion storage capacitors. External capacitors are not re- quired with the TC911. Just as easy to use as the conven- tional OP07 type amplifier, the TC911 significantly reduces offset voltage errors. Pinout matches the OP07/741/7650 8-pin mini-DIP configuration ...

Page 2

... L OUT = 0.3 — — 1 — 2 112 — 3.3 — 6.5 — — 350 S AUTO-ZEROED MONOLITHIC OPERATIONAL AMPLIFIERS = TC911B Max Min Typ Max 15 — 0.15 — 0.1 0.25 0.15 — 0.1 0.25 70 — — 120 3 — — — — — — ...

Page 3

... T = +25 C INPUT VERTICAL A SCALE = 2 V/DIV 135 OUTPUT 90 VERTICAL SCALE V/DIV 0 0V –45 –90 –135 –180 HORIZONTAL SCALE = 2 s/DIV TC911A TC911B Input Offset Voltage vs. Common-Mode Voltage + 150 –6 –5 –4 –3 –2 –1 0 ...

Page 4

... The ICL7650 uses pin optional output clamp connection. External chopper capacitors and clamp connections are not necessary with the TC911. External circuits connected to pins 1, 8 and 5 will have no effect. The TC911 can be quickly evaluated in existing ICL7650 designs. Since external capacitors are not required, system part count, assembly time, and total sys- tem cost are reduced ...

Page 5

... OUT d V OUT = GND +5V –5V TC911 + – IC1b +5V –5V X GND WR LATCH GAIN SELECT TC911A TC911B Thermometer Circuit +9V TC911 R 2 ADJ R 1 – – TEMP 2 REF ...

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