INA104SMQ

更新时间： 2024-11-03 13:08:47

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INA104SMQ 数据手册

INA104

Very-High Accuracy

INSTRUMENTATION AMPLIFIER

DESCRIPTION

FEATURES

The INA104 is a high accuracy, multistage, inte-

grated-circuit instrumentation amplifier designed for

signal conditioning requirements where very high per-

formance is desired.

● VERSATILE FOUR OP AMP DESIGN

● ULTRA-LOW VOLTAGE DRIFT:

0.25µV/°C, max

● LOW OFFSET VOLTAGE: 25µV, max

● LOW NONLINEARITY: 0.002%, max

● LOW NOISE: 13nV/√Hz at f₀= 1kHz

● HIGH CMR: 106dB at 60Hz, min

● HIGH INPUT IMPEDANCE: 10¹⁰Ω

● LOW COST

A multiamplifier, monolithic design, which uses Burr-

Brown’s ultra-low drift, low-noise technology, pro-

vides the highest performance with maximum versatil-

ity at the lowest cost and makes the INA104 ideal for

even high volume applications.

Burr-Brown’s compatible thin-film resistors and laser-

trimming techniques are used for minimizing offset

voltage and temperature drift. This advanced tech-

nique also maximizes common-mode rejection and

gain accuracy.

APPLICATIONS

● AMPLIFICATION OF SIGNALS FROM

SOURCES SUCH AS:

Strain Gages

The INA104 also contains a fourth operational ampli-

fier, specified separately, which can conveniently be

used for some important applications such as single

capacitor active low-pass filtering, easy output level

shifting, common-mode voltage active guard drive,

and increased gain (x 10,000 and greater).

Thermocouples

RTDs

● REMOTE TRANSDUCER AMPLIFIER

● LOW LEVEL SIGNAL CONDITIONER

● MEDICAL INSTRUMENTATION

A₃

A₄

Output Inverting Input

20kΩ

Gain

A₄Summing

Junction

Gain Sense

–In

10kΩ

26kΩ

10kΩ

Feedback

Resistor

A₁

CMV Sense

Gain

A₃

A₄

A₄Output

26kΩ

10kΩ

20kΩ

Gain Sense

+In

10kΩ

5kΩ

A₂

+V_CC

Offset

Adjust

Offset

Adjust

–V_CCCommon

A₄

Non-Inverting Input

International Airport Industrial Park

•

Mailing Address: PO Box 11400

Cable: BBRCORP

•

Tucson, AZ 85734

•

Street Address: 6730 S. Tucson Blvd.

• Tucson, AZ 85706

Tel: (520) 746-1111 Twx: 910-952-1111

•

Telex: 066-6491

•

FAX: (520) 889-1510

•

Immediate Product Info: (800) 548-6132

PDS-488D

Printed in U.S.A. May, 1995

12 3 4 5 6 7...11

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