Overview
The AD7895AR-3 is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed for high-speed data acquisition applications and is housed in a compact 8-pin SOIC package. It operates from a single +5 V supply and features a successive approximation A/D converter, an on-chip track/hold amplifier, and a high-speed serial interface. The AD7895AR-3 is part of the AD7895 series, which includes variants with different input voltage ranges, but the AD7895AR-3 specifically handles an input voltage range of ±2.5 V.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Conversion Time | 3.8 µs |
| Input Voltage Range | ±2.5 V |
| Supply Voltage | +5 V |
| Power Consumption | 20 mW max |
| Input Resistance | Typically 12 kΩ |
| Operating Temperature | -40°C to +85°C |
| Package Type | 8-pin SOIC |
| Sampling Rate | Up to 192 ksps |
Key Features
- High-speed successive approximation A/D converter with a conversion time of 3.8 µs.
- On-chip track/hold amplifier and high-speed serial interface.
- Single +5 V supply operation with low power consumption of 20 mW max.
- Automatic power-down mode for low power applications.
- High input impedance with no dynamic charging currents.
- Compact 8-pin SOIC package for space-saving designs.
Applications
The AD7895AR-3 is suitable for various data acquisition applications, including industrial control systems, medical devices, and automotive systems. Its high-speed conversion and low power consumption make it ideal for applications requiring rapid and accurate analog-to-digital conversion without excessive power draw.
Q & A
- What is the resolution of the AD7895AR-3?
The AD7895AR-3 has a 12-bit resolution.
- What is the conversion time of the AD7895AR-3?
The conversion time is 3.8 µs.
- What is the input voltage range of the AD7895AR-3?
The input voltage range is ±2.5 V.
- What is the supply voltage for the AD7895AR-3?
The supply voltage is +5 V.
- How much power does the AD7895AR-3 consume?
The power consumption is 20 mW max.
- What is the typical input resistance of the AD7895AR-3?
The typical input resistance is 12 kΩ.
- What is the operating temperature range of the AD7895AR-3?
The operating temperature range is -40°C to +85°C.
- In what package type is the AD7895AR-3 available?
The AD7895AR-3 is available in an 8-pin SOIC package.
- What is the sampling rate of the AD7895AR-3?
The sampling rate is up to 192 ksps.
- Does the AD7895AR-3 have an automatic power-down mode?
Yes, the AD7895AR-3 features an automatic power-down mode for low power applications.
