10

®

INA133, INA2133

TYPICAL APPLICATIONS

5

6

1

3

INA133

2

V

1

V

O

A

2

A

1

R

2

R

2

R

1

–In

V

2

+In

V

FIGURE 3. Precision Instrumentation Amplifier.

SIMILAR COMPLETE

FEATURE

BURR-BROWN IA

OPA2227

Low Noise

INA103

OPA129

Ultra Low Bias Current (fA)

INA116

OPA2277

Low Offset Drift, Low Noise

INA114, INA128

OPA2130

Low Power, FET-Input (pA)

INA121

OPA2234

Single Supply, Precision, Low Power

INA122, INA118

OPA2237

Single Supply, Low Power, MSOP-8

INA122, INA126

The INA133 can be combined with op amps to form a complete instrumenta-

tion amplifier with specialized performance characteristics. Burr-Brown offers

many complete high performance IAs. Products with related performances

are shown at the right in the table below.

100

1%

V–

5

6

3

INA133

2

100

1%

1

V

0

0 to 2V

I

IN

0 to 20mA

NOTE: (1) Input series resistors should be less than

250

Ω (1% max mismatch) to maintain excellent CMR.

With 100

Ω resistors, gain error is increased to 0.5%.

FIGURE 4. Current Receiver with Compliance to Rails.

5

6

2

V

INA133

V+

1

7

4

V+

Common

Common

3

5

6

V

INA133

Gain Error = 0.05% maximum

Nonlinearity = 0.001% maximum

Gain Drift = 1ppm/

°C

2

V

2

13

FIGURE 5. Pseudoground Generator.

FIGURE 6. Precision Unity-Gain Inverting Amplifier.