PGA848
- 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.
관심 가지실만한 유사 제품
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기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | PGA848 Low-Noise, Wide-Bandwidth, Scope Gain, Single-Ended Output, Programmable Gain Instrumentation Amplifier datasheet (Rev. A) | PDF | HTML | 2025/12/05 |
설계 및 개발
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PGA848EVM — PGA848 평가 모듈
The PGA848 evaluation module (PGA848EVM) is a development platform for evaluation the PGA848, a precision, low-noise, high-bandwidth programmable gain instrumentation amplifier (PGIA). The PGA848 is equipped with eight decade (scope) gain settings, from an attenuating gain of 0.5V/V to a maximum of (...)
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TINA-TI — SPICE 기반 아날로그 시뮬레이션 프로그램
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VQFN (RGT) | 16 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치