PGA848

現行

低雜訊高頻寬精密可編程增益放大器

立即訂購

產品規格表

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

PGA848

現行

產品規格表

立即訂購

產品詳細資料

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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重要文件	類型	標題	格式選項	下載最新的英文版本		日期
*	資料表	PGA848 Low-Noise, Wide-Bandwidth, Scope Gain, Single-Ended Output, Programmable Gain Instrumentation Amplifier datasheet (Rev. A)	PDF \| HTML			2025/12/5