AD8475 データシート PDF

部品番号 : AD8475

詳細 : Precision, Selectable Gain,Fully Differential Funnel Amplifier

メーカー : Analog Devices

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AD8475 datasheet

部品情報 :

The AD8475 is a fully differential, attenuating amplifier with integrated precision gain resistors. It provides precision attenuation (by 0.4 or 0.8), common-mode level shifting, and single-ended-to
differential conversion along with input overvoltage protection. Power dissipation on a single 5V supply is only 16mW. The AD8475 is a simple to use, fully integrated precision gain block, designed to process signal levels of up to ±10 V on a single supply. It provides a complete interface to make industrial level signals directly compatible with the differential input ranges of low voltage high performance 16-bit or 18-bit single-supply successive approximation (SAR)analog-to-digital converters (ADCs).

Precision attenuation: G = 0.4, G = 0.8
Fully differential or single-ended input/output
Differential output designed to drive precision ADCs
Drives switched capacitor and Σ-Δ ADCs
Rail-to-rail output
VOCM pin adjusts output common-mode voltage
Robust overvoltage protection up to ±15 V (VS = +5 V)
Single supply: 3 V to 10 V
Dual supplies: ±1.5 V to ±5 V
High performance
Suited for driving 18-bit converters up to 4 MSPS
10 nV/√Hz output noise
3 ppm/°C gain drift
500 μV maximum output offset
50 V/μs slew rate
Low power: 3.2 mA supply current

ADC drivers
Differential instrumentation amplifier building blocks
Single-ended-to-differential converters

VS = 5 V, G = 0.4, VOCM connected to 2.5 V, RL = 1 kΩ differentially, TA = 25°C, referred to output (RTO), unless otherwise noted.

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