Overview
The AD8476BRMZ-RL, produced by Analog Devices Inc., is a fully differential unity gain amplifier and ADC driver designed for high precision and low power consumption. This amplifier is particularly suited for driving precision analog-to-digital converters (ADCs), including switched capacitor and Σ-Δ ADCs. It offers excellent performance characteristics such as very low harmonic distortion, low noise, and high accuracy, making it ideal for applications requiring precise signal amplification and conditioning.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Specified Supply Voltage | ±3 | ±5 | ±18 | V |
| Supply Current (VS = +5 V, TA = 25°C) | 300 | 330 | 400 | μA |
| Supply Current (VS = ±5 V, TA = 25°C) | 330 | 380 | 500 | μA |
| Temperature Range | −40 | +125 | °C | |
| Output Offset Voltage | 200 | μV | ||
| Noise (39 nV/√Hz) | 39 | nV/√Hz | ||
| Harmonic Distortion (HD2 at 10 kHz) | −126 | dB | ||
| Harmonic Distortion (HD3 at 10 kHz) | −128 | dB | ||
| Package | 8-Lead MSOP |
Key Features
- Very low power consumption with a supply current of 330 μA (VS = +5 V, TA = 25°C).
- Extremely low harmonic distortion: −126 dB HD2 and −128 dB HD3 at 10 kHz.
- Fully differential or single-ended inputs and outputs, with differential output designed to drive precision ADCs.
- High precision with a maximum output offset voltage of 200 μV and noise of 39 nV/√Hz.
- High speed, settling to 16-bit precision for 250 kSPS acquisition times.
- Available in space-saving 8-lead MSOP package.
- Fully specified over the −40°C to +125°C temperature range.
Applications
The AD8476BRMZ-RL is suitable for a variety of applications that require high precision signal amplification and conditioning, including:
- Driving precision analog-to-digital converters (ADCs), such as switched capacitor and Σ-Δ ADCs.
- Low power, high accuracy data acquisition systems.
- Medical devices requiring precise signal processing.
- Aerospace and defense applications where high reliability and precision are critical.
- Industrial control systems that demand accurate signal conditioning.
Q & A
- What is the primary function of the AD8476BRMZ-RL?
The AD8476BRMZ-RL is a fully differential unity gain amplifier and ADC driver designed to drive precision analog-to-digital converters (ADCs). - What is the typical supply current of the AD8476BRMZ-RL?
The typical supply current is 330 μA when operated with a single +5 V supply and 380 μA with ±5 V supplies at 25°C. - What are the key harmonic distortion specifications of the AD8476BRMZ-RL?
The AD8476BRMZ-RL has harmonic distortion specifications of −126 dB HD2 and −128 dB HD3 at 10 kHz. - What is the maximum output offset voltage of the AD8476BRMZ-RL?
The maximum output offset voltage is 200 μV. - What is the noise specification of the AD8476BRMZ-RL?
The noise specification is 39 nV/√Hz. - In what temperature range is the AD8476BRMZ-RL fully specified?
The AD8476BRMZ-RL is fully specified over the −40°C to +125°C temperature range. - What package options are available for the AD8476BRMZ-RL?
The AD8476BRMZ-RL is available in an 8-lead MSOP package. - What types of inputs and outputs does the AD8476BRMZ-RL support?
The AD8476BRMZ-RL supports fully differential or single-ended inputs and outputs. - How quickly can the AD8476BRMZ-RL settle to 16-bit precision?
The AD8476BRMZ-RL can settle to 16-bit precision for 250 kSPS acquisition times. - What are some typical applications for the AD8476BRMZ-RL?
Typical applications include driving precision ADCs, low power data acquisition systems, medical devices, aerospace and defense, and industrial control systems.
