INA128

AKTIV

Präziser, energieeffizienter Instrumentenverstärker, 130 dB CMRR, 700 µA

Jetzt bestellen

Datenblatt

document-pdfAcrobat INA12x Precision, Low-Power Instrumentation Amplifiers datasheet (Rev. G) (Englisch) PDF | HTML

INA128

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Number of channels

1

Vs (max) (V)

36

Vs (min) (V)

4.5

Input offset (±) (max) (µV)

50

Voltage gain (min) (V/V)

1

Voltage gain (max) (V/V)

10000

Noise at 1 kHz (typ) (nV√Hz)

8

Features

Current Feedback, Overvoltage protection

CMRR (min) (dB)

120

Input offset drift (±) (max) (µV/°C)

0.5

Input bias current (±) (max) (nA)

5

Iq (typ) (mA)

0.7

Bandwidth at min gain (typ) (MHz)

1.3

Gain error (±) (max) (%)

0.5

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Type

Resistor

Gain nonlinearity (±) (max) (%)

0.004

Output swing headroom (to negative supply) (typ) (V)

0.8

Output swing headroom (to positive supply) (typ) (V)

-0.9

Input common mode headroom (to negative supply) (typ) (V)

1.7

Input common mode headroom (to positive supply) (typ) (V)

-1.4

Noise at 0.1 Hz to 10 Hz (typ) (µVPP)

0.2

Number of channels

1

Vs (max) (V)

36

Vs (min) (V)

4.5

Input offset (±) (max) (µV)

50

Voltage gain (min) (V/V)

1

Voltage gain (max) (V/V)

10000

Noise at 1 kHz (typ) (nV√Hz)

8

Features

Current Feedback, Overvoltage protection

CMRR (min) (dB)

120

Input offset drift (±) (max) (µV/°C)

0.5

Input bias current (±) (max) (nA)

5

Iq (typ) (mA)

0.7

Bandwidth at min gain (typ) (MHz)

1.3

Gain error (±) (max) (%)

0.5

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Type

Resistor

Gain nonlinearity (±) (max) (%)

0.004

Output swing headroom (to negative supply) (typ) (V)

0.8

Output swing headroom (to positive supply) (typ) (V)

-0.9

Input common mode headroom (to negative supply) (typ) (V)

1.7

Input common mode headroom (to positive supply) (typ) (V)

-1.4

Noise at 0.1 Hz to 10 Hz (typ) (µVPP)

0.2

SOIC (D)

8

29.4 mm² (4.9 mm × 6 mm)

PDIP (P)

8

92.5083 mm² (9.81 mm × 9.43 mm)

Low offset voltage: 50µV, maximum
Low drift: 0.5µV/°C, maximum
Low input bias current:
- 5nA, maximum (CSO: SHE)
- 0.7nA, maximum (CSO: FRE)
Low noise: 8nV/√Hz, 0.2µVpp
High CMR: 120dB, minimum
Bandwidth: 1.3MHz (G = 1)
Inputs protected to ±40V
Wide supply range: ±2.25V to ±18V
Low quiescent current: 700µA
Packages: 8-pin plastic DIP, SO-8

Low offset voltage: 50µV, maximum
Low drift: 0.5µV/°C, maximum
Low input bias current:
- 5nA, maximum (CSO: SHE)
- 0.7nA, maximum (CSO: FRE)
Low noise: 8nV/√Hz, 0.2µVpp
High CMR: 120dB, minimum
Bandwidth: 1.3MHz (G = 1)
Inputs protected to ±40V
Wide supply range: ±2.25V to ±18V
Low quiescent current: 700µA
Packages: 8-pin plastic DIP, SO-8

The INA128 and INA129 (INA12x) are low-power, general-purpose instrumentation amplifiers that offer excellent accuracy. The versatile three op amp design and small size make these amplifiers an excellent choice for a wide range of applications. Current-feedback input circuitry provides wide bandwidth even at high gain (200kHz at G = 100).

A single external resistor sets any gain from 1 to 10,000. The INA128 provides an industry-standard gain equation with a 50kΩ resistor. The INA129 gain equation uses a 49.4kΩ resistor to allow for drop-in replacements of comparable devices.

The INA12x are available in plastic DIP and surface-mount packages, specified for the –40°C to +85°C temperature range. The INA128 is also available in a dual configuration, the INA2128.

The upgraded INA828 offers a lower input bias current (0.6nA, maximum) and lower noise (7nV/√Hz) at the same quiescent current. See the Device Comparison Table for a selection of precision instrumentation amplifiers from Texas Instruments.

The INA128 and INA129 (INA12x) are low-power, general-purpose instrumentation amplifiers that offer excellent accuracy. The versatile three op amp design and small size make these amplifiers an excellent choice for a wide range of applications. Current-feedback input circuitry provides wide bandwidth even at high gain (200kHz at G = 100).

A single external resistor sets any gain from 1 to 10,000. The INA128 provides an industry-standard gain equation with a 50kΩ resistor. The INA129 gain equation uses a 49.4kΩ resistor to allow for drop-in replacements of comparable devices.

The INA12x are available in plastic DIP and surface-mount packages, specified for the –40°C to +85°C temperature range. The INA128 is also available in a dual configuration, the INA2128.

The upgraded INA828 offers a lower input bias current (0.6nA, maximum) and lower noise (7nV/√Hz) at the same quiescent current. See the Device Comparison Table for a selection of precision instrumentation amplifiers from Texas Instruments.

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Design und Entwicklung

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Evaluierungsplatine

INAEVM — Universal-Instrumenten-Verstärker – Evaluierungsmodul

The universal INAEVM (Instrumentation Amplifier Evaluation Module) is available in two package options that simplify prototyping precision instrumentation amplifiers in either the SO-8 (D) package or the MSOP-8(DGK) package with the pinout shown. See the chart in the user guide (...)

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