PGA849
- Differential to single-ended conversion
- Eight pin-programmable binary gains
- G (V/V) = ⅛, ¼, ½, 1, 2, 4, 8, and 16
- Low gain error drift: 2ppm/°C (max)
- Faster signal processing:
- Wide bandwidth: 10MHz at all gains
- High slew rate: 35V/µs
- Settling time: 500ns to 0.01%, 950ns to 0.0015%
- Input stage noise: 7.8nV/√Hz at G = 16V/V
- Filter option to achieve better SNR
- Input overvoltage protection to ±40V beyond supplies
- Input-stage supply range:
- Single supply: 8V to 36V
- Dual supply: ±4V 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 QFN
The PGA849 is a wide-bandwidth, low-noise programmable gain instrumentation amplifier for differential-to-single-ended conversion. The PGA849 is equipped with eight binary gain settings, from an attenuating gain of 0.125V/V to a maximum of 16V/V, using three digital gain selection pins.
The PGA849 architecture is optimized to drive inputs of high-resolution, precision analog-to-digital converters (ADCs) with sampling rates up to 1MSPS without the need for an additional ADC driver. The output-stage power supplies are decoupled from the input stage to protect the ADC or downstream device 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, making the PGA849 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 PGA849 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.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | PGA849 Low-Noise, Wide-Bandwidth, Precision Programmable Gain Instrumentation Amplifier datasheet | PDF | HTML | 2024/03/29 |
| EVM User's guide | PGA849 Evaluation Module User's Guide | PDF | HTML | 2024/03/20 | |
| Product overview | PGA855 and PGA849 Product Overview | PDF | HTML | 2024/02/21 |
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| 패키지 | 핀 | 다운로드 |
|---|---|---|
| VQFN (RGT) | 16 | 옵션 보기 |
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