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PGA848

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Amplificador de ganancia programable de precisión de ancho de banda amplio y bajo ruido

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document-pdfAcrobat PGA848 Low-Noise, Wide-Bandwidth, Scope Gain, Single-Ended Output, Programmable Gain Instrumentation Amplifier datasheet (Rev. A) (Inglés) PDF | HTML

PGA848

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Detalles del producto

PGA/VGA

PGA

Number of channels

1

Vs (min) (V)

9

Vs (max) (V)

36

Input type

Differential

Output type

Single-ended

Input offset drift (±) (typ) (µV/°C)

0.2

Interface type

GPIO

BW at Acl (MHz)

8

Acl, min spec gain (V/V)

0.5

Gain (max) (dB)

40

Architecture

Bipolar

Features

Overvoltage protection, Super-beta

Vos (offset voltage at 25°C) (typ) (mV)

0.05

Input voltage noise (typ) (µV√Hz)

0.0499

Slew rate (typ) (V/µs)

23

Iq per channel (typ) (mA)

5.3

Gain error (typ) (%)

0.015

Gain drift (max) (ppm/°C)

2

Rating

Catalog

Operating temperature range (°C)

-40 to 125

PGA/VGA

PGA

Number of channels

1

Vs (min) (V)

9

Vs (max) (V)

36

Input type

Differential

Output type

Single-ended

Input offset drift (±) (typ) (µV/°C)

0.2

Interface type

GPIO

BW at Acl (MHz)

8

Acl, min spec gain (V/V)

0.5

Gain (max) (dB)

40

Architecture

Bipolar

Features

Overvoltage protection, Super-beta

Vos (offset voltage at 25°C) (typ) (mV)

0.05

Input voltage noise (typ) (µV√Hz)

0.0499

Slew rate (typ) (V/µs)

23

Iq per channel (typ) (mA)

5.3

Gain error (typ) (%)

0.015

Gain drift (max) (ppm/°C)

2

Rating

Catalog

Operating temperature range (°C)

-40 to 125

VQFN (RGT)

16

9 mm² (3 mm × 3 mm)

Differential to single-ended conversion
Eight pin-programmable decade (scope) gains
- G (V/V) = ½, 1, 2, 5, 10, 20, 50, and 100
Low gain error drift: ±2ppm/°C (maximum)
Faster signal processing:
- Wide bandwidth: 6.2MHz (G < 10), 2.4MHz (G = 50, 100)
- High slew rate: 43V/µs at all gains
- Settling time: 710ns to 0.01% (G < 20)
- Input stage noise: 8.5nV/√Hz at G > 10V/V
- Filter option to achieve better SNR
Input overvoltage protection to ±40V beyond supplies
Input-stage supply range:
- Single supply: 9V to 36V
- Dual supply: ±4.5V to ±18V
Independent output power-supply pins
Output-stage supply range:
- Single supply: 4.5V to 36V
- Dual supply: ±2.25V to ±18V
Specified temperature range: –40°C to +125°C
Small package: 3mm × 3mm VQFN

Differential to single-ended conversion
Eight pin-programmable decade (scope) gains
- G (V/V) = ½, 1, 2, 5, 10, 20, 50, and 100
Low gain error drift: ±2ppm/°C (maximum)
Faster signal processing:
- Wide bandwidth: 6.2MHz (G < 10), 2.4MHz (G = 50, 100)
- High slew rate: 43V/µs at all gains
- Settling time: 710ns to 0.01% (G < 20)
- Input stage noise: 8.5nV/√Hz at G > 10V/V
- Filter option to achieve better SNR
Input overvoltage protection to ±40V beyond supplies
Input-stage supply range:
- Single supply: 9V to 36V
- Dual supply: ±4.5V to ±18V
Independent output power-supply pins
Output-stage supply range:
- Single supply: 4.5V to 36V
- Dual supply: ±2.25V to ±18V
Specified temperature range: –40°C to +125°C
Small package: 3mm × 3mm VQFN

The PGA848 is a wide-bandwidth, low-noise programmable gain instrumentation amplifier for differential-to-single-ended conversion. The PGA848 is equipped with eight decade (scope) gain settings, from an attenuating gain of 0.5V/V to a maximum of 100V/V. Gain is set using three digital gain selection pins.

The PGA848 architecture is optimized to drive inputs of high-resolution, precision analog-to-digital converters (ADCs) with sampling rates up to 1MSPS without additional ADC drivers. The output-stage power supplies are decoupled from the input stage to protect the ADC or downstream devices against overdrive damage.

The super-beta input transistors offer an impressively low input bias current, which in turn provides a very low input current noise density of 0.3pA/√Hz. This capability makes the PGA848 a versatile choice for virtually any sensor type. The low-noise current-feedback front-end architecture offers exceptional gain flatness even at high frequencies, making the PGA848 an excellent high-impedance sensor readout device. Integrated protection circuitry on the input pins handles overvoltages of up to ±40V beyond the power-supply voltages.

The PGA848 is a wide-bandwidth, low-noise programmable gain instrumentation amplifier for differential-to-single-ended conversion. The PGA848 is equipped with eight decade (scope) gain settings, from an attenuating gain of 0.5V/V to a maximum of 100V/V. Gain is set using three digital gain selection pins.

The PGA848 architecture is optimized to drive inputs of high-resolution, precision analog-to-digital converters (ADCs) with sampling rates up to 1MSPS without additional ADC drivers. The output-stage power supplies are decoupled from the input stage to protect the ADC or downstream devices against overdrive damage.

The super-beta input transistors offer an impressively low input bias current, which in turn provides a very low input current noise density of 0.3pA/√Hz. This capability makes the PGA848 a versatile choice for virtually any sensor type. The low-noise current-feedback front-end architecture offers exceptional gain flatness even at high frequencies, making the PGA848 an excellent high-impedance sensor readout device. Integrated protection circuitry on the input pins handles overvoltages of up to ±40V beyond the power-supply voltages.

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Documentación principal	Tipo	Título	Opciones de formato	Descargar la versión más reciente en inglés	Fecha
*	Hoja de datos	PGA848 Low-Noise, Wide-Bandwidth, Scope Gain, Single-Ended Output, Programmable Gain Instrumentation Amplifier datasheet (Rev. A)	PDF \| HTML		5/12/2025

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Placa de evaluación

PGA848EVM — Módulo de evaluación PGA848

El módulo de evaluación PGA848 (PGA848EVM) es una plataforma de desarrollo para evaluar el PGA848, un amplificador de instrumentación de ganancia programable (PGIA) de precisión, bajo ruido y ancho de banda alto. El PGA848 está equipado con ocho ajustes de ganancia de década (alcance), desde una (...)

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