Texas Instruments INA2126 Bedienungsanleitung

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INAx126 MicroPower Instrumentation Amplifiers

1 Features

•Low quiescent current: 175μA/channel

•Wide supply range: ±1.35V to ±18V

•Low offset voltage: 250μV maximum

•Low offset drift: 3μV/°C maximum

•Low noise: 35 nV/√Hz

•Low input bias current: 25nA maximum

•Temperature range: –40°C to +85°C

•Multiple package options:

–Single channel:

•INA126P/PA 8-pin PDIP (P)

•INA126U/UA 8-pin SOIC (D)

•INA126E/EA 8-pin VSSOP (DGK)

–Dual channels:

•INA2126P/PA 16-pin PDIP (N)

•INA2126U/UA 16-pin SOIC (D)

•INA2126E/EA 16-pin SSOP (DBQ)

2 Applications

•Level transmitter

•Flow transmitter

•Multiparameter patient monitor

•Mixed module (AI, AO, DI, DO)

•AC charging (pile) station

•Infusion pump

•Electrocardiogram (ECG)

3 Description

The INA126 and INA2126 (INAx126) are precision

instrumentation amplifiers for accurate, low-noise,

differential-signal acquisition. The two-op-amp design

provides excellent performance with low quiescent

current (175μA/channel). These features combined

with a wide operating voltage range of ±1.35V to

±18V make the INAx126 a great choice for portable

instrumentation and data acquisition systems.

Gain can be set from 5V/V to 10000V/V with

a single external resistor. Precision input circuitry

provides low offset voltage (250μV, maximum), low

offset voltage drift (3μV/°C, maximum), and excellent

common-mode rejection.

All versions are specified for the –40°C to +85°C

industrial temperature range.

Device Information

PART NUMBER

CHANNEL

COUNT

PACKAGE

(1)

INA126Single

P (PDIP, 8)

D (SOIC, 8)

DGK (VSSOP, 8)

INA2126Dual

N (PDIP, 16)

D (SOIC, 16)

DBQ (SSOP, 16)

(1)For more information, see Section 10.

40kΩ

10kΩ

10kΩ

40kΩ

INA126

5

4

2

1

8

3

7

6

R

G

V

IN

–

V

IN

+

V+

V–

V

O

= (V

IN

–V

IN

) G

–+

80kΩ

R

G

G=5+

Simplified Schematic: INA126

40kΩ

10kΩ

10kΩ

40kΩ

INA2126

5

7

8

1

4

3

2

9

6

R

G

V

IN

–

V

IN

+

V+

V–

V

O

= (V

IN

–V

IN

) G

–

+

G = 5 +

V

O

= (V

IN

–V

IN

) G

–

+

G = 5 +

40kΩ

10kΩ

10kΩ

40kΩ

12

16

13

14

15

11

10

R

G

V

IN

–

V

IN

+

80kΩ

R

G

80kΩ

R

G

Simplified Schematic: INA2126

INA126, INA2126

SBOS062D – SEPTEMBER 2000 – REVISED DECEMBER 2025

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Produktspezifikationen