LOG200
- Ultra-fast transient response to low current levels:
- Settling time for 10nA to 100nA step: 240ns rising, 620ns falling (typ)
- Settling time for 100nA to 1µA step: 60ns rising, 150ns falling (typ)
- Wide dynamic range: 10pA to 10mA (180dB)
- Specified from 100pA to 10mA (160dB)
- High signal bandwidth:
- 20MHz at 10µA to 10mA
- 6.3MHz at 1µA
- 90kHz at 1nA
- High-accuracy transfer function:
- 0.2% max log conformity error (10nA to 100µA)
- Integrated reference current (1µA) and reference voltages (2.5V and 1.65V)
- Additional auxiliary high-speed op amp for differential ADC drive, single-ended gain or filter blocks, and other peripheral functions
- Single supply (4.5V to 12.6V) or dual supply (±2.25V to ±6.3V) operation
- Specified temperature range: –40°C to +125°C
- Small package options:
- 3mm × 3mm VQFN
- 1.6mm x 1.6mm DSBGA (Preview)
The LOG200 is a wide-dynamic-range current-to-voltage amplifier specifically designed to optimize current measurements across 160dB of dynamic range with unparalleled accuracy and speed for optical communications, medical diagnostics, and industrial process-control measurements. The LOG200 features two logarithmic amplifiers followed by a high-accuracy differential amplifier that convert current signals into a voltage representing the log-compressed ratio of the two currents. The current inputs are designed to feature a high-speed response from one input, and a highly accurate reference signal on the other input, allowing for a unique combination of fast transient response and high logarithmic conformity.
The LOG200 ratio is internally set to 250mV/decade of current-to-voltage conversion. The device integrates an uncommitted high-speed amplifier to allow the output to be configured for differential or filtered responses, with a fast settling time to drive successive approximation analog-to-digital converters (SAR ADCs). The LOG200 also features a separate reference current and reference voltage designed to configure the device for optimized input current and common-mode voltages.
The LOG200 can be powered in a single-supply (4.5V to 12.6V) or dual-supply (±2.25V to ±6.3V) configuration and is specified from –40°C to +125°C.
기술 자료
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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