Overview
The AD7862AR-10, produced by Analog Devices Inc., is a high-speed, low-power, dual 12-bit analog-to-digital converter (ADC). This component is designed for simultaneous sampling and conversion of two channels, making it ideal for applications requiring precise and synchronized data acquisition. The AD7862AR-10 operates from a single +5 V supply and features automatic power-down mode, which is beneficial for battery-powered or portable applications.
Key Specifications
| Parameter | Value | Units | Test Conditions/Comments |
|---|---|---|---|
| Resolution | 12-bit | ||
| Sampling Rate | 250 kSPS | ||
| Analog Input Range | ±10 V | For AD7862-10 version | |
| Supply Voltage | +5 V | ||
| Power Consumption | 60 mW (typ) | ||
| Aperture Delay | 20 ns (typ) | ||
| Aperture Jitter | 100 ps (typ) | ||
| Signal to (Noise+Distortion) Ratio | 70 dB (min) @ +25°C | fIN = 100.0 kHz, fS = 250 kSPS | |
| Total Harmonic Distortion | -78 dB (min) | fIN = 100.0 kHz, fS = 250 kSPS | |
| Operating Temperature | -40°C to +85°C | ||
| Package Type | 28-lead SOIC, SSOP, DIP |
Key Features
- Simultaneous sampling and conversion of two channels, preserving relative phase information of the signals.
- High-speed parallel interface for easy connection to microprocessors, microcontrollers, and digital signal processors.
- Automatic power-down mode for reduced power consumption in battery-powered or portable applications.
- Tight aperture delay matching between the two input sample-and-hold amplifiers.
- Internal +2.5 V reference and overvoltage protection on analog inputs.
- Available in three versions with different analog input ranges: ±10 V, ±2.5 V, and 0 V – +2.5 V.
Applications
The AD7862AR-10 is suitable for a variety of applications that require high-speed, simultaneous data acquisition. These include:
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems
- Portable and battery-powered devices
Q & A
- What is the resolution of the AD7862AR-10?
The AD7862AR-10 has a resolution of 12 bits. - What is the sampling rate of the AD7862AR-10?
The sampling rate is 250 kSPS. - What are the available analog input ranges for the AD7862?
The AD7862 is available in three versions with different analog input ranges: ±10 V, ±2.5 V, and 0 V – +2.5 V. - What is the supply voltage for the AD7862AR-10?
The supply voltage is +5 V. - Does the AD7862AR-10 have automatic power-down mode?
Yes, it features an automatic power-down mode to reduce power consumption. - What is the typical power consumption of the AD7862AR-10?
The typical power consumption is 60 mW. - What types of packages are available for the AD7862AR-10?
The AD7862AR-10 is available in 28-lead SOIC, SSOP, and DIP packages. - What is the operating temperature range for the AD7862AR-10?
The operating temperature range is -40°C to +85°C. - Does the AD7862AR-10 have overvoltage protection on its analog inputs?
Yes, it has overvoltage protection on the analog inputs. - What is the signal-to-noise ratio (SNR) of the AD7862AR-10?
The signal-to-noise ratio is 70 dB (min) at +25°C with fIN = 100.0 kHz and fS = 250 kSPS.
