●Product Details
●The AD8476 is a very low power, fully differential precision amplifier with integrated gain resistors for unity gain. It is an ideal choice for driving low power, high performance ADCs as a single-ended-to-differential or differential-to-differential amplifier. It provides a precision gain of 1, common-mode level shifting, low temperature drift, and rail-to-rail outputs for maximum dynamic range.
●The AD8476 also provides overvoltage protection from large industrial input voltages up to ±23 V while operating on a dual 5 V supply. Power dissipation on a single 5 V supply is only 1.5 mW.
●The AD8476 works 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 on the market, the AD8476 is a high precision amplifier. With 200 μV maximum output offset, 39 nV/√Hz noise, and −102 dB THD + N at 10 kHz, the AD8476 pairs well with low power, high accuracy converters.
●Considering its low power consumption and high precision, the slew-enhanced AD8476 has excellent speed, settling to 16-bit precision for 250 kSPS acquisition times.
●The AD8476 is available in a space-saving 8-lead MSOP package. It is fully specified over the −40°C to +125°C temperature range.
●Applications
● ADC driver
● Differential instrumentation amplifier building block
● Single-ended-to-differential converter
● Battery powered instruments
●### Features and Benefits
● Very low power
●\- 330 μA supply current
● Fully differential or single-ended inputs/outputs
● Differential output designed to drive precision ADCs
●\- Drives switched capacitor and Σ-Δ ADCs
●\- Rail-to-rail output
● VOCM pin adjusts output common mode
● Robust overvoltage up to 18 V beyond supplies
● High performance
●\- Suitable for driving 16-bit converter up to 250 kSPS
●\- 39 nV/√Hz output noise
●\- 1 ppm/°C gain drift
●\- 200 μV maximum output offset
●\- 10 V/μs slew rate
●\- 5 MHz bandwidth
● Single supply: 3 V to 18 V
● Dual supplies: ±1.5 V to ±9 V
