AD8475 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

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Part No

AD8475
Manufacturer

ADI
ChipWorker Part#

CW622305103
Description

Precision, Selectable Gain, Fully Differential Funnel Amp
Documentation

Datasheet
Ships from

Moscow
Наличие

In Stock
Estimated Price

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AD8475 Specifications

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Attribute	Attribute Value

Part Number	AD8475
Manufacturer	ADI
ChipWorker Part#	CW622305103
Documentation	Datasheet
	expand all
Product Lifecycle Status	Active

Similar & Replacement Parts

Product Description

Product Details
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 5 V supply is only 16 mW.
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).
The AD8475 comes with two standard pin-selectable gain options: 0.4 and 0.8. The gain of the part is set by driving the input pin corresponding to the appropriate gain.
The AD8475 also provides overvoltage protection from large industrial input voltages up to ±15 V while operating on a single 5 V supply. The VOCM pin adjusts the output voltage common mode for precision level shifting, to match the ADC’s input range and maximize dynamic range.
The AD8475 works extremely well with SAR, Σ-Δ, and pipeline converters. The high current output stage of the part allows it to drive the switched capacitor front-end circuits of many ADCs with minimal error.
Unlike many differential drivers in the market, the AD8475 is a high precision amplifier. With 500 μV maximum output offset, 10 nV/√Hz output noise, and −112 dB THD + N, the AD8475 pairs well with high accuracy converters. Considering its low power consumption and high precision, the slew-enhanced AD8475 has excellent speed, settling to 18-bit precision for 4 MSPS acquisition.
The AD8475 is available in a space-saving 16-lead 3 mm × 3 mm LFCSP package and a 10-lead MSOP package. It is fully specified over the −40°C to +85°C temperature range.
**Applications**
ADC drivers
Differential instrumentation amplifier building blocks
Single-ended-to-differential converters
### Features and Benefits
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

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